Who wins the Sinnoh league?

Ash does not win the sinnoh league. He uses all his Pokemon against 2 of the other guys Pokemon, but the other guy had a Darkrai and a LatiOS.

The final episode of Sinnoh league Victors is SO emotional (I started to cry). Ash and Brock leave Dawn in Twinleaf Town and leave to Kanto. Then Ash and Brock go their separate ways. It is soooo sad :(.