Just a list of the prerequisites to earn this achievement.
0. Find someone who is willing to help you out
1. Both players need a profile on the Codemasters page[accounts.codemasters.com]
2. Send a friend request and accept it (friends management)[accounts.codemasters.com]



3. Open the Grid 2 page,[racenetlegacy.codemasters.com] send and accept a rival request


4. Now you can open the game
4.1 One player has to create a game (my suggestions is any Checkpoint race)
4.2 Second player has to join
5. Let player 1 win, start a new race, and now it's the turn of player 2

You're done. Congratulations.