Qualify (The Atlantis Grail Book 1) by Vera Nazarian

Earth is doomed. A killer asteroid is coming. Qualify for rescue… or die!
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Awkward smart girl Gwen must compete in deadly trials against all other Earth teens in order to Qualify for interplanetary rescue from an asteroid apocalypse, impress her arrogant commanding officer, and save everyone she loves. High-octane bestselling action SF series for fans of THE HUNGER GAMES, DIVERGENT, and ANCIENT ALIENS, from a two-time Nebula Award and Dragon Award Finalist author. The Atlantis Grail Series has been optioned for film!