Qualify (The Atlantis Grail Book 1) by Vera Nazarian

Now optioned for film! International cross-genre phenomenon!
Nerd, geek, and awkward smart girl Gwen Lark must compete against other Earth teens, including her sexy high school crush, in order to Qualify for interplanetary rescue from an asteroid apocalypse, in this bestselling, high-octane adventure series from a Nebula Award and Dragon Award Finalist in vein of DIVERGENT and THE HUNGER GAMES.