The UFC had an historic year in 2015. From the highs of mega-events that caught the world’s attention to the lows of an overwhelming number of key fight cancellations, a lot unfolded over the past 12 months and 41 events.

Now that the year has come to a close, and with a major assist from FightMetric research analyst and live statistics producers Michael Carroll, here are some of 2015’s most significant milestones from the events, the fights and individual performances.

EVENTS

The UFC held 41 events in 32 different cities across 13 countries and five continents.

Within those events, there were 474 fights across 11 different weight classes (including catchweight bouts).

Those 474 fights combined for a total cage time of 83:33:40.

The longest event of the year was “UFC Fight Night 78: Magny vs. Gastelum” at 2:41:51.

The shortest event of the year was “UFC 184: Rousey vs. Zingano” at 1:19:22.

At those events, the UFC drew an announced total attendance of 485,078 for a live gate total of $61,916,855 (Note: live gate was not announced for 13 events.)

The highest reported attended event of the year was “UFC 193: Rousey vs. Holm” in Melbourne (56,214) while the lowest attended event was “UFC Fight Night 80: Namajunas vs. VanZant” in Las Vegas (1,643).

“UFC 193: Rousey vs. Holm” drew the highest attendance of any event in UFC history, surpassing “UFC 129: St-Pierre vs. Shields” in Toronto, which had 55,724 fans in attendance.

“UFC 194: Aldo vs. McGregor” in Las Vegas drew an announced attendance of 16,156, the highest of the company’s 98 total events in Nevada.

“UFC 184: Rousey vs. Zingano” in Los Angeles drew an announced attendance of 17,654, the most of the company’s 22 total events in California.

“UFC 186: Johnson vs. Horiguchi” in Montreal drew an announced attendance of 10,154, the lowest of the UFC’s 16 pay-per-view events in Canada.

The highest reported income gate of the year was “UFC 194: Aldo vs. McGregor” in Las Vegas ($10.1 million) while the lowest reported income gate of the year went to “UFC Fight Night 80: Namajunas vs. VanZant,” also in Las Vegas ($234,725).

“UFC 194: Aldo vs. McGregor” sold a live gate of $10.1 million, the second largest in UFC history behind “UFC 129: St-Pierre vs. Shields” in April 2011 ($12.1 million).

In 2015, 163 fight-night bonuses were given out for a sum of $8,150,000.

“UFC 184: Rousey vs. Zingano” marked the first time in company history two women’s bouts topped a card.

“UFC 193: Rousey vs. Holm” marked the first time in company history two women’s championship bouts headlined a card.

“UFC 185: Pettis vs. dos Anjos” and “UFC 194: Aldo vs. McGregor” were the second and third events in company history to see two undisputed titles change hands. The feat also occurred at UFC 46 in January 2004.

“UFC Fight Night 68: Boetsch vs. Henderson” featured seven first-round finishes, tied with UFC Fight Night 32, UFC 146, UFC Fight Night 14 and The Ultimate Fighter 1 Finale for the most in company history.

“UFC Fight Night 59: McGregor vs. Siver” and “UFC on FOX 15: Rockhold vs. Machida” marked the first and second events in UFC history to see three consecutive fights end in a third-round finish.

“UFC Fight Night 65: Miocic vs. Hunt” was the fourth event in modern UFC history to feature three finishes in less than one minute each. UFC Fight Night 26, UFC 84 and UFC Fight Night 13 also featured the feat.

“UFC 193: Rousey vs. Holm” was the fifth event in UFC history to feature two stoppages stemming from body strikes. The feat also occurred a The Ultimate Fighter 14 Finale, UFC on FOX 7, UFC Fight Night 35 and UFC Fight Night 45.

The most knockouts at a single event went to “UFC 185: Pettis vs. dos Anjos” and “UFC Fight Night 68: Boetsch vs. Henderson” with seven.

“UFC 189: Mendes vs. McGregor” was the first event in UFC history to feature two knockouts stemming from flying knee strikes.

“UFC 189: Mendes vs. McGregor” featured seven knockdowns on the five-fight main card, tied with “UFC 84: Ill Will” for the most in company history.

The most submissions at a single event went to “UFC Fight Night 62: Maia vs. LaFlare” and “UFC Fight Night 80: Namajunas vs. VanZant” with six. That’s the most since the record-breaking “UFC on FUEL TV 10: Nogueira vs. Werdum” event in June 2013, which had eight submissions.

“UFC 188: Velasquez vs. Werdum” marked the first event in modern UFC history to feature two submissions in less than one minute each.

The most fights to go to a decision at an event went to “UFC Fight Night 71: Mir vs. Duffee” and “UFC Fight Night 78: Magny vs. Gastelum” with nine.

“UFC 182: Jones vs. Cormier” and “UFC 192: Cormier vs. Gustafsson” marked the second and third pay-per-view events in UFC history in which every fight scheduled for the main card ended in a decision. UFC 33 in September 2001 was the other.

“UFC Fight Night 79: Henderson vs. Masvidal” set a new UFC record for split-decision finishes with five.

Through the end of 2015, fighters competing in their home countries have found mixed success inside the octagon. Brazilians are 133-73 at home against foreign opponents to date. Canadians, meanwhile, are 70-47.

Betting favorites went 288-180 with six no-contests over the course of the year.

“UFC Fight Night 65: Miocic vs. Hunt” had the most favorites come through with victorious, as 11 of 12 had their hand raised. On the flip side, 10 underdogs won at “UFC Fight Night 61: Bigfoot vs. Mir”

UFC Fight Night 61’s 10 underdog victories are the most in a FightMetric-tracked UFC, PRIDE, Strikeforce, WEC, EliteXC or DREAM event.

Of the 946 fighters to weigh in for UFC bouts and fight, 16 officially missed weight for their contests. All but one of those fighters was scheduled to compete at welterweight or below.

“UFC 186: Johnson vs. Horiguchi” was the first event in UFC history to feature two pre-planned catchweight bouts.

Ninety-four fighters made their UFC debuts in 2015. Of those fighters, 26 debuted on the main card of a televised or pay-per-view event.

A variety of circumstances caused a total of 42 UFC main event or co-main event fights to be adjusted, postponed or canceled entirely.

A variety of circumstances caused a total of seven UFC fights to be adjusted within 48 hours of the event.

HEAVYWEIGHT

Number of fights: 28

Knockouts: 16

Submissions: Two

Decisions: 10

Other: Zero

Champion at beginning of year: Cain Velasquez

Champion at end of year: Fabricio Werdum

Most fights in divisional history: Frank Mir (26)

Longest winning streak in division: Andrei Arlovski (seven)

Most wins in divisional history: Mir (16)

Most knockouts in divisional history: Velasquez (nine)

Most submissions in divisional history: Mir (eight)

LIGHT HEAVYWEIGHT

Number of fights: 26

Knockouts: 13

Submissions: Four

Decisions: Nine

Other: Zero

Champion at beginning of year: Jon Jones

Champion at end of year: Daniel Cormier

Most fights in divisional history: Chuck Liddell and Tito Ortiz (19)

Longest winning streak in division: Jones (12)

Most wins in divisional history: Jones (15)

Most stoppages in divisional history: Jones and Liddell (nine)

Most knockouts in divisional history: Liddell (nine)

Most submissions in divisional history: Jones (five)

MIDDLEWEIGHT

Number of fights: 56

Knockouts: 24

Submissions: Eight

Decisions: 21

Other: Three

Champion at beginning of year: Chris Weidman

Champion at end of year: Luke Rockhold

Most fights in divisional history: Chris Leben (22)

Longest winning streak in division: Yoel Romero (seven)

Most wins in divisional history: Three fighters tied with 13

Most stoppages in divisional history: Anderson Silva (11)

Most knockouts in divisional history: Silva (eight)

Most submissions in divisional history: Demian Maia and Rousimar Palhares (five)

WELTERWEIGHT

Number of fights: 88

Knockouts: 31

Submissions: 17

Decisions: 39

Other: One

Champion at beginning of year: Robbie Lawler

Champion at end of year: Lawler

Most fights in divisional history: Josh Koscheck (24)

Longest winning streak in division: Stephen Thompson (five)

Most wins in divisional history: Georges St-Pierre (19)

Most stoppages in divisional history: Matt Brown and Matt Hughes (11)

Most knockouts in divisional history: Brown (nine)

Most submissions in divisional history: Chris Lytle (six)

LIGHTWEIGHT

Number of fights: 100

Knockouts: 24

Submissions: 21

Decisions: 54

Other: One

Champion at beginning of year: Anthony Pettis

Champion at end of year: Rafael dos Anjos

Most fights in divisional history: Gleison Tibau (26)

Longest winning streak in division: Tony Ferguson (seven)

Most wins in divisional history: Tibau (17)

Most stoppages in divisional history: Joe Lauzon (11)

Most knockouts in divisional history: Melvin Guillard (seven)

Most submissions in divisional history: Lauzon & Nate Diaz (seven)

FEATHERWEIGHT

Number of fights: 56

Knockouts: 21

Submissions: Nine

Decisions: 24

Other: Two

Champion at beginning of year: Jose Aldo

Champion at end of year: Conor McGregor

Most fights in divisional history: Max Holloway (13)

Longest winning streak in division: McGregor and Holloway (seven)

Most wins in divisional history: Holloway (11)

Most stoppages in divisional history: Three fighters tied with six

Most knockouts in divisional history: McGregor (six)

Most submissions in divisional history: Charles Oliveira (six)

BANTAMWEIGHT

Number of fights: 37

Knockouts: 11

Submissions: 8

Decisions: 17

Other: One

Champion at beginning of year: T.J. Dillashaw

Champion at end of year: Dillashaw

Most fights in divisional history: Urijah Faber and Takeya Mizugaki (12)

Longest winning streak in division: Raphael Assuncao (seven)

Most wins in divisional history: Faber (nine)

Most stoppages in divisional history: Dillashaw & Faber (six)

Most knockouts in divisional history: Dillashaw (five)

Most submissions in divisional history: Faber (six)

WOMEN’S BANTAMWEIGHT

Number of fights: 20

Knockouts: Five

Submissions: Five

Decisions: 10

Other: Zero

Champion at beginning of year: Ronda Rousey

Champion at end of year: Holly Holm

Most fights in divisional history: Rousey and Jessica Andrade (seven)

Longest winning streak in division: Miesha Tate (four)

Most wins in divisional history: Rousey (six)

Most stoppages in divisional history: Rousey (six)

Most knockouts in divisional history: Rousey and Amanda Nunes (three)

Most submissions in divisional history: Rousey (three)

FLYWEIGHT

Number of fights: 36

Knockouts: Seven

Submissions: Six

Decisions: 23

Other: Zero

Champion at beginning of year: Demetrious Johnson

Champion at end of year: Johnson

Most fights in divisional history: Johnson and Joseph Benavidez (10)

Longest winning streak in division: Johnson (nine)

Most stoppages in divisional history:

Most wins in divisional history: Johnson (nine)

Most stoppages in divisional history: Four fighters tied with four

Most knockouts in divisional history: John Lineker (four)

Most submissions in divisional history: Johnson and John Moraga (three)

WOMEN’S STRAWWEIGHT

Number of fights: 24

Knockouts: Two

Submissions: Nine

Decisions: 13

Other: Zero

Champion at beginning of year: Carla Esparza

Champion at end of year: Joanna Jedrzejczyk

Most fights in divisional history: Jedrzejczyk (five)

Longest winning streak in division: Jedrzejczyk (five)

Most wins in divisional history: Jedrzejczyk (five)

Most stoppages in divisional history: Three fighters tied with two

Most knockouts in divisional history: Jedrzejczyk (two)

Most submissions in divisional history: Rose Namajunas (two)

INDIVIDUAL FEATS

Tony Ferguson earned four fight-night bonuses, the most of any fighter.

Thales Leites, Charles Oliveira, Holly Holm and Ferguson were the only fighters to be awarded multiple fight-night bonuses for a single performance.

Paul Felder became the third fighter in UFC history to earn a knockout victory stemming from a spinning back fist when he stopped Danny Castillo at UFC 182. Shonie Carter and John Makdessi are the others to accomplish the feat.

Donald Cerrone made the fourth shortest turnaround in UFC history when he fought twice in 15 days at UFC 182 and UFC Fight Night 59. The 15-day turnaround between UFC wins was the third shortest in history.

Benson Henderson set a new three-round UFC record for most leg kicks landed with 53 against Donald Cerrone at UFC Fight Night 59.

Gleison Tibau fought to a split decision for a UFC record seventh time at UFC Fight Night 59.

Charles Rosa registered the latest submission ever in a three-round UFC featherweight bout when he finished Sean Soriano at 4:43 of Round 3 at UFC Fight Night 59.

Makwan Amirkhani’s knockout victory at 0:08 of Round 1 against Andy Ogle at UFC on FOX 14 tied the fifth fastest knockout in UFC history.

Makwan Amirkhani’s eight-second finish of Andy Ogle at UFC on FOX 14 was the fastest in history by a debuting UFC/WEC featherweight fighter and also ties the second fastest knockout by a UFC/WEC featherweight overall.

Derek Brunson became the fourth fighter in modern UFC history to earn a knockout and submission finish in less than one minute when he finished Ed Herman at UFC 183. Brunson’s 36-second victory at UFC 183 joined his 48-second submission of Brian Houston at UFC Fight Night 31.

John Lineker missed weight for the fourth time in his UFC career at UFC 183, the most of any fighter in company history.

Ildemar Alcantara became the sixth fighter in UFC history to earn victories in three different weight classes when he won at UFC 183.

Jake Ellenberger earned just the third north-south choke submission victory in UFC history when he submitted Josh Koscheck at UFC 184. Rani Yahya and Jeff Monson are the others to accomplish the feat.

Rousey became the fifth fighter in modern UFC history to earn a knockout and submission finish in less than one minute when she finished Cat Zingano at UFC 184. Rousey’s 14-second victory at UFC 194 joined her 16-second knockout at UFC 185.

Rousey’s 14-second submission of Zingano at UFC 184 set a new record for the fastest submission finish in modern UFC history. Marcus Aurelio held the previous record with his 16-second submission at UFC Fight Night 13 in April 2008.

Rousey’s seven armbar victories, the last of which came at UFC 184, are the most of any fighter in UFC history and are also tied with Antonio Rodrigo Nogueira for the most of any fighter in the combined history of UFC/PRIDE/WEC/Strikeforce.

Koscheck became just the third fighter in UFC history to suffer five consecutive losses in one stint with the organization when Erick Silva defeated him at UFC Fight Night 62.

Jim Miller committed to three submission attempts against Beneil Dariush at UFC on FOX 15 and passed Chris Lytle’s record for the most submission attempts in UFC history. He currently has 34 submission attempts inside the octagon.

Gain Villante became the first fighter in UFC history to absorb 100 or more significant strikes in three consecutive bouts when he defeated Corey Anderson at UFC on FOX 15.

Demetrious Johnson’s submission victory at the 4:59 mark of Round 5 at UFC 186 marked the latest stoppage in a UFC fight. He also owns the third latest stoppage in UFC history with his submission of John Moraga (Round 5, 3:43) at UFC on FOX 8.

Johnson completed 14 takedowns at UFC 186 and became the first fighter in UFC history to earn 10 or more takedowns in three separate UFC fights.

Valerie Letourneau became the first female fighter in UFC history to earn victories in two weight classes when she defeated Jessica Rakoczy at UFC 186.

Stipe Miocic landed 361 total strikes at UFC Fight Night 65, the most of any fighter in a single bout in UFC history. Miocic outlanded Hunt 361-46 in total strikes. The 315 total strike differential marked the largest margin in UFC history.

Charles Oliveira and Nik Lentz became the fourth set of fighters in UFC history to compete against each other twice and win “Fight of the Night” honors on both occasions at UFC Fight Night 67. Dan Henderson vs. Mauricio Rua, Tito Ortiz vs. Forrest Griffin and Rich Franklin vs. Wanderlei Silva are the other matchups to accomplish the feat.

Joe Proctor’s submission of Justin Edwards at the 4:58 mark of Round 3 at UFC Fight Night 68 marked the latest submission ever in a three-round UFC lightweight bout.

Dan Henderson, 44, became the oldest fighter in UFC history to earn a knockout victory when he stopped Tim Boetsch at UFC Fight Night 68. Randy Couture held the previous record.

Patrick Williams’ submission of Alejandro Perez at the 0:23 mark of Round 1 at UFC 188 marked the fastest submission ever in a UFC/WEC bantamweight contest.

M. Amirkhani became the first featherweight fighter in UFC history to earn a victory without throwing or landing a single strike when he defeated Masio Fullen at UFC Fight Night 69.

Yoel Romero is the only fighter in UFC history to earn back-to-back victories by third-round knockout on two separate occasions.

Matt Brown earned his 11th stoppage victory UFC welterweight competition and tied Matt Hughes for the most finishes in divisional history when he submitted Tim Means at UFC 189.

Frank Mir earned his record 16th victory in UFC heavyweight competition when he knocked out Todd Duffee at UFC Fight Night 71.

Mir’s knockout of Duffee marked his 10th first-round stoppage in UFC competition, the most in modern company history.

Michael Bisping’s 115 significant strikes landed against Thales Leites UFC Fight Night 72 gave him a UFC record 1,285 in his career, passing Georges St-Pierre and Frankie Edgar on the all-time list.

Bisping became the first fighter in UFC middleweight history to land 100 or more significant strikes in three separate bouts when he defeated Leites at UFC Fight Night 72.

T.J. Dillashaw became the first fighter in UFC history to land more than 100 significant strikes in four consecutive fights when he defeated Renan Barao at UFC on FOX 16.

Max Holloway, 23, became the youngest fighter in UFC history to earn 10 victories with the organization when he defeated C. Oliveira at UFC Fight Night 74.

Olivier Aubin-Mercier landed just three significant strikes in his decision victory at UFC Fight Night 74, a record for the lowest amount for the winner of any three-round UFC fight to go the distance.

Josh Barnett’s 146 significant strikes landed against Roy Nelson at UFC Fight Night 75 set a new single-fight UFC heavyweight record.

Barnett’s 95 significant clinch strikes landed at UFC Fight Night 75 set a new overall UFC record.

Sage Northcutt, 19, became the youngest fighter in UFC history to earn a victory when he defeated Francisco Trevino at UFC 192.

Daniel Cormier and Alexander Gustafsson combined for 260 significant strikes at UFC 192, a single-fight record for a UFC light-heavyweight bout.

Vitor Belfort earned his 14th stoppage victory in UFC competition when he defeated D. Henderson at UFC Fight Night 77, tied with Anderson Silva for the most in history.

Belfort’s victory over Henderson at UFC Fight Night 77 marked his 13th first-round stoppage in UFC competition, the most in history.

Belfort’s victory over Henderson at UFC Fight Night 77 marked his 12th knockout in UFC competition, the most in history.

Belfort’s victory over Henderson marked his fourth UFC knockout stemming from a head kick, tied with Cerrone for the most in history.

Henderson suffered his 15th knockdown in UFC/PRIDE/Strikeforce/WEC competition against Belfort at UFC Fight Night 77, the most in the combined history of the four organizations.

Tibau earned his 17th UFC lightweight victory at UFC Fight Night 77, the most in divisional history.

Holm became the first female fighter in UFC history to earn a knockout stemming from a head kick when she defeated Rousey at UFC 193.

Jedrzejczyk’s 220 significant strikes landed against Letourneau at UFC 193 were the second most in a UFC fight behind Nate Diaz’s 238 significant strikes at UFC 141 in December 2011.

Jedrzejczyk’s 70 leg kicks landed at UFC 193 set a new UFC record. Carlos Condit held the previous record with 68 leg kicks landed at UFC 143.

James Moontasri earned the third knockout in UFC history stemming from a spinning back kick to the body when he defeated Anton Zafir at UFC 193. David Loiseau and Dennis Siver also accomplished the feat.

Diego Sanchez fought to a decision for the 16th time in his UFC career at UFC Fight Night 78, tied with Tibau for the most in company history.

Neil Magny became the first fighter in modern UFC history to make five or more octagon appearances in consecutive years when he competed at UFC Fight Night 78.

Antonio Carlos Junior vs. Kevin Casey at UFC Fight Night 80 marked the shortest no-contest result in UFC history at 11 seconds.

Rose Namajunas’ submission victory over Paige VanZant at the 2:25 mark of Round 5 at UFC Fight Night 80 marked the latest stoppage in UFC strawweight history and the latest stoppage ever in a women’s UFC fight.

Ferguson earned his second D’Arce-choke submission victory in UFC competition when he defeated Edson Barboza at the TUF 22 Finale, tied with Dustin Poirier for the most in company history.

Ferguson’s record of 10-1 after 11 UFC appearances is the best of any fighter to come from “The Ultimate Fighter” reality series.

Evan Dunham became the first lightweight in UFC history to land 100 or more significant strikes in three separate bouts when he defeated Joe Lauzon at the TUF 22 Finale.

Rockhold’s 126 significant strikes landed against Weidman at UFC 194 were the second most ever in a UFC middleweight fight behind Rich Franklin’s 127 against David Loiseau at UFC 58.

McGregor became the sixth fighter in UFC history to earn five or more consecutive knockouts when he defeated Aldo at UFC 194.

McGregor became the first fighter in UFC history to earn five consecutive “Performance of the Night” bonuses at UFC 194.

Nate Diaz was awarded his 12th fight-night bonus at UFC on FOX 17, tied with A. Silva for second most in company history behind Lauzon (13).

CHAMPIONSHIP FEATS

Seven new UFC champions were crowned in 2015, the most of any year in history.

Rousey’s 14-second submission of Cat Zingano at UFC 184 marked the fastest submission in UFC championship fight history.

Rousey vs. Zingano at UFC 184 marked the first championship fight in UFC history to feature zero strikes landed by either competitor.

Rafael dos Anjos became the first Brazilian-born lightweight champion in UFC history when he defeated Anthony Pettis at UFC 185.

Dos Anjos’ 18 UFC fights are the most it’s ever taken for a fighter to win a UFC championship.

Jedrzejczyk and McGregor became just the third and fourth European-born fighters in UFC history to capture an undisputedwhen they won their respective belts. Bas Rutten and Andrei Arlovski also accomplished the feat.

Jedrzejczyk became the first Polish-born champion in UFC history when she defeated Esparza at UFC 185.

Kyoji Horiguchi became the sixth Japanese fighter in UFC history to come up short in a title fight when he lost to D. Johnson at UFC 186. Fighters from the country are 0-6-1 in UFC championship fights.

Cormier became the fifth fighter in UFC history to win a championship belt while coming off a loss when he defeated Anthony Johnson at UFC 187.

Cain Velasquez became the fourth UFC heavyweight champion to drop the title after two defenses when he lost to Fabricio Werdum at UFC 188. No champion in the history of the weight class has successfully defended the belt three times.

Chad Mendes became the fifth fighter in UFC history to go 0-3 in championship fights when he lost to McGregor at UFC 189. He joins Urijah Faber, Kenny Florian, Pedro Rizzo and Chael Sonnen in the category.

Rousey became the first fighter in UFC/Strikeforce/PRIDE/WEC history to win four title fights in less than one minute each when she defeated Bethe Correia at UFC 190.

Rousey’s streak of six consecutive stoppages in UFC championship fight set at UFC 190 is the longest title-fight finishing streak in history.

Rousey’s five first-round finishes in UFC title fights, the last of which came at UFC 190, are the most in modern history.

Cormier and Gustafsson’s 260 significant strikes landed at UFC 192 were the third most in UFC championship fight history.

Jedrzejczyk and Letourneau combined for 323 significant strikes landed at UFC 193, the most ever in a UFC championship fight.

Jedrzejczyk’s 220 significant strikes landed against Letourneau at UFC 193 set a new UFC title-fight record.

Jedrzejczyk’s +117 significant strike differential against Letourneau at UFC 193 marked the greatest advantage in a UFC championship fight.

Holm became the second UFC women’s bantamweight champion in history when she defeated Ronda Rousey at UFC 193. Rousey held the title for the division’s entire existence, since February 2013.

McGregor became the first Irish-born champion in UFC history when he defeated Aldo at UFC 194.

McGregor’s 13-second knockout of Aldo at UFC 194 marked the fastest title-fight stoppage in UFC history.

Dos Anjos’ 66-second victory against Donald Cerrone at UFC on FOX 17 marked the fastest stoppage in UFC lightweight title-fight history.

For more on the UFC’s upcoming schedule, stay tuned to the UFC Rumors section of the site.