After completing the regatta, you will be able to get rewards for the completed objectives - chests. To get the reward you need to tap on the State Hall or on the race icon after the end of the race.
Attention! If you have not collected rewards before the start of the next regatta, they will be lost. Also, players who leave the state before the end of the regatta will lose access to the rewards.
In addition to chests, a state can receive a reward for placing in a regatta.