Create races by tapping on athletes inside people tab
As a coach, it would be more natural in many cases to be able to open up the people tab and two a "create new race" button. I could then simply scroll through my athletes and tap each person that should be in the race. Alternatively, there could be a selection tool in the people tab that allows me to select multiple people. Once selected, a variety of functions would become available to do so,thing with the selected people. The function I'd like to see most would be "create new race from selected athletes". There could also be functions like "create group", "add to race on history", etc.

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The original idea would be to create a "team" for that purpose, which you could name as a race if you like. People can be on as many teams as you like. (People Tab > Edit > New Team > 9/26 Race > Done), then just tap on that group and select the folks that belong in that race. Once you have the group, you can hit New Watches for this team, and it will offer the choice of creating a new race or adding this group to the current race.
Note that later the 9/26 Race group could be deleted without affecting the Race, or the people's history.
Does that match what you're looking for?