One Day, Without a Doubt
No longer able to run at full speed, Tokai Teio realizes that she'll never win again. Left with no reason to race, she plans to withdraw from Team Spica, but Trainer asks her to put on one last show for her fans.
Aired 09/03/2021EP 10 - One Day, Without a Doubt

2021
Umamusume: Pretty Derby Season 2
All eyes are on Toukai Teiou as she takes on the Japanese Derby, ready to gallop in Symboli Rudolf's footsteps and become an undefeated Triple Crown Horse Girl. The stands are full. The track is set. It's time to see which horse girl fortune favors!
(Source: Crunchyroll, edited)