"PSA: Beating a gym now gives -1000 prestige per Pokémon, plus an additional -1000 for a full clear. Training a gym gets you half the prestige it used to."

#PokemonGO: This means that if you beat every Pokémon in a level 10 gym (50k prestige) reduces the prestige by 11k, making it a level 8 gym immediately.Training a gym now has a max prestige gain of 500 per victory, for beating a Pokémon with double the CP of yours. Beating a Pokemon with the same CP as yours is now +250 prestige. Putting a Pokemon in a gym still gives +2000 like it used to as far as I know. via /r/pokemongo http://ift.tt/2fuMQIY