grenade hammer effects vs prizes

[IceForPvM]

so my question is a rather interesting one that has come up, if I were to use seismitoad exs grenade hammer to KO my opponents active to take my final prizes but using the bench damage to also ko one of my pokemon so they take their final prizes what is the outcome of the game? also noting that this would be during game 1 of the best of 3



P.S sorry for the confusing title/text I didn't know how to word it correctly

 

[PokePop]

When win conditions are checked, each player will have met one win condition, taking all prizes.
Now, if each player still has Pokemon in play, then that would lead to Sudden Death.
However, if your opponent has no Pokemon left in play, then you win because you have met two win conditions.

If each player has met one win condition, then Sudden Death is played to resolve that game (not the match, but the game).
Each player sets up as normal, but only puts out one prize. Whoever takes their prize first is the winner of the Sudden Death and wins that Game 1.