Wallace Cup

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The Aqua Ribbon.

The Wallace Cup (Japanese: ミクリカップ Mikuri Cup) is a special Pokémon Contest hosted and judged by former Sootopolis Gym Leader and current Hoenn Champion, the master Coordinator Wallace. The event was introduced in DP075, while the actual contest took place in episodes DP077, DP078, and DP079.

The Wallace Cup is hosted at Lake Valor in Sinnoh, with the prize being the Aqua Ribbon that counts towards any region's Grand Festival, not merely that of the region it is won in. For this reason, Coordinators migrated from all around the nation to compete in it.

May faces Dawn in the finals.

It was announced on Sinnoh Now, where Dawn found out about it and became excited. Eventually, she, Ash, and Brock ran into Wallace himself, who was relaxing with his Milotic in a lake; Ash was convinced to enter the Contest with Buizel, which he used in the three rounds he competed in before losing.

May traveled all the way from Johto to compete in this Contest; but she lost on the final against Dawn.