Eleven seconds into the race...Jenny asserts herself physically and delivers two nice elbows to Mary Cain. It works. Mary immediately concedes and falls in behind.
(Around 13 seconds on the youtube clock).
This is an important thing to highlight for young racers: If you have a plan, follow the plan. GET PHYSICAL if you have to and defend your ability to execute.
It's not dirty...it's part of the sport.
Gamesmanship - in this case GamesWOmanship.