From Halopedia, the Halo wiki
The Martian Olympics were an event held on Mars. The olympics were held inside sealed habitats on the planet's surface, with events including bobsled courses. John-117 was reminded of old videos of these events after observing Tárnoc Gorge on Reach during Operation: WOLFE.
List of appearances
- Halo: Shadows of Reach (First mentioned)
- ^ Halo: Shadows of Reach, chapter 4