There was a quiet poise to Brooke Henderson on that Sunday morning last summer in Regina ahead of her final round at the CP Women's Open.

She had experienced big moments before: her first LPGA Tour win as a 17-year-old in 2015, her first major victory a year later, her first appearance at the Olympics.

This tournament was different.

No Canadian had won the national open since Jocelyne Bourassa in 1973. Supporters who crammed the galleries could sense something special was happening.

Henderson would deliver in emphatic fashion, firing a closing-round 65 for a four-shot victory.

Watch highlights from Henderson's historic victory:

The Canadian paced the field, finishing 21-under par to win the CP Women's Open. She became just the 2nd Canadian women to win the tournament, snapping a 45-year drought. 1:58

"The 18th hole, standing on that green, surrounded by family and friends and hundreds of fans and spectators cheering me on — it was sort of a surreal moment," Henderson said. "To finally hold that trophy that I've dreamed about since I was a little girl, it gives me chills just thinking back on it."

It was one of two tournament titles and 11 top-10 finishes for Henderson last season. On Wednesday, she was rewarded for her stellar campaign by being named a repeat winner of the Bobbie Rosenfeld Award as The Canadian Press female athlete of the year.

'It's a big honour'

Henderson, who has won the award in three of the last four years, picked up 30 of 54 votes (55.6 per cent) in a poll of broadcasters and editors from across the country.

"Especially this year being an Olympic year with all the great athletes that competed in the Winter Olympics, it's a big honour and I'm just really proud to take home this award again," Henderson said.

Figure skater Kaetlyn Osmond and short-track speed skater Kim Boutin tied for second place with 10 votes each (18.5 per cent).

The winner of the Lionel Conacher Award as Canada's male athlete of the year will be named Thursday and the team of the year will be named Friday.

'A dream come true:' Henderson on her CP Women's Open title:

CP Women's Open champion Brooke Henderson joins The National to talk about what it was like to make history, why she's stuck with her unorthodox golf club grip and what's next for her fast-rising career. 5:02

With wet weather in the forecast, Henderson had an early start for her final round at the CP Women's Open. Showing no sign of nerves or timidity, she lashed her opening drive down the fairway and birdied the hole for a two-stroke lead.

Angel Yin, Sung Hyun Park, Su Oh and others tried to make charges that day but Henderson wouldn't buckle. In fact, the Canadian found another gear.

Henderson pulled away with four straight birdies on the back nine and tapped in a birdie putt on the 18th hole to send the crowd into a tizzy. Her seventh career LPGA Tour victory moved her one behind Sandra Post's record for all-time wins by a Canadian.

"The blinders were on," Post said. "She was looking at the finish line and she just looked like it was hers. She wasn't nervous. It was hers."

Emotional summer

It was an emotional summer for Henderson and her family. Her maternal grandfather died in early June and her paternal grandfather died in early August.

Henderson, from Smiths Falls, Ont., remained steady and consistent throughout the year. She won the Lotte Championship last April in Hawaii, earned $1.47 US million over the season and finished ninth in the world rankings.

"Big performances on the biggest stage amongst stiff competition in one of the highest-profile sports in the world," said Edmonton-based Postmedia editor Craig Ellingson.

Henderson was fourth in scoring average (69.99) on the LPGA Tour, eighth in driving distance (268-yard average) and fourth in greens in regulation (74.5 per cent).

Rapid fire with Brooke Henderson:

Golfer Brooke Henderson may be competing for $1 Million at this weekend's end of season tournament, but she's just like you...she likes to binge watch Netflix too! 0:53

Her short game statistics were middle of the pack. Henderson was 72nd in putting average (29.7 putts per round) and 87th in sand saves (43.7 per cent).

"It's easy to get down on yourself when things aren't going perfectly," Henderson said. "I feel like I stayed really patient through the majority of the year. When things were not very good, they always turned around. You just have to wait them out and I did that.

"Even going into the CP Women's Open, I was in contention a few times and wasn't able to get the job done. But I feel like I learned from those experiences and then when I put myself in position in Regina, I wasn't going to let it go that time. I was able to seal the deal."

Bobbie Rosenfeld, an Olympic medallist in track and field and a multi-sport athlete, was named Canada's best female athlete of the half-century in 1950.

The first winner of the Rosenfeld award was golfer Ada Mackenzie in 1933. Marlene Stewart Streit leads all golfers by taking the honour on five occasions (1952, '53, '56, '57, '63).