Reference article
White Tufted Duck’s Race
White Tufted Duck offers this race in Glacier.
Entering
Click the local rival and select a duck. You need Flying level exactly 0.
Course
No flying. Ordinary races play automatically; trained skills and sufficient energy determine whether the duck reaches the finish.
Winning
Winning gives you 200 coins the first time you finish first. Once defeated, this rival no longer offers the race.
Progression
This race is optional for the tournament invitation.
Rival
This race is offered by 
White Tufted Duck.
Original Flash note
Some races give different coin rewards in the original Flash game.