You Can Choose Your Eevee Evolution in 'Pokémon Go', But There's a Trick
If you're an astute Internet user: congratulations. You already kinda know the trick, thanks to this article's URL.
If you don't well, no sweat. That's what the rest of this article is for.
For a while, it seemed as if your Eevee's evolution -- assuming you find enough to evolve it -- was a matter of chance. In the original Game Boy games, exposing your Eevee to a stone determined its final form: a Water Stone begat Vaporeon; a Thunder Stone begat Jolteon; and a Fire Stone begat Flareon. Some Pokémon Go players speculated this game's evolution correlated with which attack your Eevee began -- that Dig resulted in Flareon, etc., etc.
But redditors, as they are wont to do, came upon a solution that harkens back to the original TV cartoon. As laid out by OP smithnigel, the original Eevee trainers were named "Rainer, Pyro, Sparky," and "they owned a Vaporeon, Flareon and Jolteon respectively."
If you name your Eevee one of those names, its evolution corresponds:
- Sparky for Jolteon
- Rainer for Vaporeon
- Pyro for Flareon
And if that's not enough evidence for you, I can personally attest to naming my Eevee "Sparky," which resulted in a Jolteon evolution.
There is a catch, however. You can't just get infinity of Vaporeons, Jolteons, or Flareons by naming them the same thing. It appears as if the trick works only once, based on anecdotal findings.
1. Name your Eevvee either Sparky, Rainer, or Pyro, depending on which evolution you want.
2. Close the game and reload
3. Evolve your Eevee
4. Repeat this process, but with the other names to acquire all three
There you have it. Now get out there and get yourself a couple dozen Eevee, and you'll be all set.