Raise your hand if you thought Stanford running back Tyler Gaffney would run a faster 40-yard dash than Oregon's De'Anthony Thomas at the NFL combine.

Put your hand down, liar.

Granted, it was still only by a hundredth of a second -- Gaffney ran 4.49 and Thomas 4.50 -- but, still, Thomas built his reputation on speed, while Gaffney's was more on toughness and vision. It ranked as one of the surprise performances among Pac-12 players over the weekend at the NFL combine.

Washington running back Bishop Sankey made a move up draft boards with his performance at the NFL combine. AP Photo/Michael Conroy

Sunday proved to be a great day for Washington running back Bishop Sankey, who might have jumped Arizona's Ka'Deem Carey on some draft boards, according to ESPN's John Clayton.

From Clayton's story:

There may not be a running back who could entice a team to use a first-round pick, but the backs who ran Sunday looked great. Bishop Sankey of Washington may have entered the combine as the No. 3 halfback, but his stock probably rose with a 4.49 40 time along with a good show of lifting strength. Tre Mason of Auburn displayed second-round numbers with his 4.5. Both backs might have jumped ahead of Ka'Deem Carey of Arizona, who had a 4.70.

Sankey ranked No. 2 among running backs with 26 reps on the bench press and his 40-time was tied for No. 9.

Another one of the weekend's big winners was Oregon State receiver Brandin Cooks, who turned in the fastest 40 among receivers. His time of 4.33 was second to only to Kent State running back Dri Archer, who ran a 4.26.

Cooks, who set Pac-12 single-season records with 128 catches and 1,730 receiving yards this year, also turned in the fastest time registered in the 60-yard shuttle (10.72) at the combine since at least 2006. During that same time period, he's tied for the fastest time in the 20-yard shuttle (3.81) with Tennessee cornerback Jason Allen from 2006.

Washington tight end Austin Seferian-Jenkins, the John Mackey Award winner, has a stress fracture in his foot that is expected to need six to eight weeks to recover, according to a report from the Tacoma News Tribune. Due to the injury, Seferian-Jenkins was able to participate only in the bench press. He put up 20 reps, which ranked tied for No. 10 among the 15 tight ends who participated.

See the complete list of Pac-12 invitees.

Here are the Saturday and Sunday results from the Pac-12 players in the 40 and bench press:

Running back

Gaffney, Stanford: 4.49/did not lift

Sankey, Washington: 4.49/26 reps

Thomas, Oregon: 4.50/8 reps

Carey, Arizona: 4.70/19 reps

Silas Redd, USC: 4.70/18 reps

Ryan Hewitt, Stanford (fullback): 4.87/did not lift

Marion Grice, Arizona State: Did not participate

Lache Seastrunk, Baylor (transferred from Oregon): 4.51/15 reps

Wide receiver

Cooks, Oregon State: 4.33/16 reps

Paul Richardson, Colorado: 4.40/did not lift

Shaquelle Evans, UCLA: 4.51/13 reps

Josh Huff, Oregon: 4.51/14 reps

Marqise Lee, USC: 4.52/did not lift

Offensive line

Xavier Su'a-Filo, OG, UCLA: 5.04/25 reps

Cameron Fleming, OT, Stanford: 5.28/26 reps

David Yankey, OG, Stanford: 5.48/22 reps

Marcus Martin, C, USC: did not run/23 reps

Tight end

Colt Lyerla, formerly of Oregon: 4.61/16 reps

Anthony Denham, Utah: 4.77/did not lift

Jake Murphy, Utah: 4.79/24 reps

Richard Rodgers, TE, California: 4.87/16 reps

Seferian-Jenkins, Washington: did not run/20 reps

Xavier Grimble, USC: did not run or lift

Quarterback

No Pac-12 quarterbacks are at the combine, which is a rarity. The conference has sent at least one every year since at least 1999, which was as far back as we could go to find combine rosters.