Dec. 22, 2015, 8:30 a.m. (ET)

Team USA athletes dominated competitions in 2015 from January through December, winning world cups, setting personal bests, earning gold medals and breaking world records — and celebrating every one of them with the most captivating expressions. Take a look back and relive some of the best celebratory moments of the year.

1) Team USA @ ISU World Team Trophy
Gracie Gold (C) celebrates with teammates after the ladies' free skate at the ISU World Team Trophy at Yoyogi National Gymnasium on April 18, 2015 in Tokyo.

2) Matt Hendricks @ IIHF World Championships
Matt Hendricks celebrates a goal during the IIHF World Championship Group B match between the United States and Finland at CEZ Arena on May 1, 2015 in Ostrava, Czech Republic.

3) Becky Sauerbrunn and Julie Johnston @ FIFA World Cup
Becky Sauerbrunn (#4) and Julie Johnston celebrate after a goal by Carli Lloyd in the second half against China in the FIFA Women's World Cup 2015 quarterfinal match at Lansdowne Stadium on June 26, 2015 in Ottawa, Ontario.

4) Max Holt and David Smith @ FIVB World League
Max Holt carries David Smith as they celebrate victory after the FIVB World League Group 1 Finals match against France at Maracanazinho Gymnasium on July 17, 2015 in Rio de Janeiro.

5) Cheyenne Lewis @ Toronto Pan American Games
Cheyenne Lewis celebrates after scoring a point during her gold medal contest against Paulina Armeria of Mexico in the women's -57 kg. weight division of taekwondo at the Toronto 2015 Pan American Games on July 20, 2015 in Toronto.

6) Yue Wu @ Toronto Pan American Games
Yue Wu celebrates after winning the women's singles table tennis gold medal at the Toronto 2015 Pan American Games on July 25, 2015 in Markham, Ontario.

7) Piagno and Gortarez @ Toronto Pan American Games
Stacy Piagno (12) and Jade Gortarez celebrate after beating Canada in the women's baseball final at the Toronto 2015 Pan American Games on July 26, 2015 in Toronto.

8) Katie Ledecky @ FINA World Championships
Katie Ledecky celebrates winning the gold medal in a new world record of 8:07.39 in the women's 800-meter freestyle at the 16th FINA World Championships at the Kazan Arena on Aug. 8, 2015 in Kazan, Russia.

9) Michael Phelps @ Phillips 66 National Championships
Michael Phelps reacts after competing in the men's 100-meter butterfly final during the 2015 Phillips 66 National Championships at the Northside Swim Center on Aug. 8, 2015 in San Antonio.

10) Ashton Eaton @ IAAF World Championships
Ashton Eaton crosses the finish line to win his men's decathlon 400-meter heat and lead the overall decathlon at the 15th IAAF World Athletics Championships at Beijing National Stadium on Aug. 28, 2015 in Beijing.

11) Kyle Snyder @ World Wrestling Championships
Kyle Snyder celebrates winning the men's freestyle -97 kg. gold-medal match at the 2015 World Wrestling Championships on Sept. 11, 2015 in Las Vegas.

12) Ted Ligety @ FIS Alpine Ski World Cup
Ted Ligety celebrates taking first place in the men's giant slalom at the Audi FIS Alpine Ski World Cup on Oct. 25, 2015 in Soelden, Austria.

13) Team USA @ FIG Artistic Gymnastics World Championships
The U.S. women's team celebrates winning all-around gold at the 2015 FIG Artistic Gymnastics World Championships at The SSE Hydro on Oct. 27, 2015 in Glasgow, Scotland.

14) Team USA @ IBSF World Cup
Jamie Greubel Poser (R) and Cherrelle Garrett (L) embrace Elana Meyers Taylor (second from left) and Kehri Jones after finishing first and second, respectively, in women's bobsled during the BMW IBSF Bobsled & Skeleton World Cup at Veltins Eis-Arena on Dec. 5, 2015 in Winterberg, Germany.

15) Matt Grevers @ Duel In The Pool
Matt Grevers reacts after breaking the world record in the men's 100-meter backstroke at the Mutual of Omaha Duel in the Pool at Indiana University Natatorium on Dec. 12, 2015 in Indianapolis.