| Distance | 30.8 mi |
| Distance (metric) | 49.6 km“50K (30.8 Miles with ~6,300′ Elevation Gain); 30.8 mi × 1.609344 = 49.56 km” source |
| Elevation gain | 6,300 ft“50K (30.8 Miles with ~6,300′ Elevation Gain); 6,300 ft × 0.3048 = 1920.24 m” source |
| Net elevation | 0 ft“"Starting and finishing at Rodeo Beach" (teamrunrun.com race info); start and finish are the same place, so finish minus start elevation is 0.” source |
| Terrain | coastal, forest, mountain“"The courses include exposed fire roads with coastal views, technical single-track under redwood canopy"; "The Marin Ultra Challenge is a trail running event in the Marin Headlands and Mt Tam near Sausalito, California."” source |
| Nearest town | Sausalito“"11050 Mitchell Road" in "Sausalito, CA"” source |
| State | CA“"11050 Mitchell Road" in "Sausalito, CA"” source |
| Country | US“"11050 Mitchell Road" in "Sausalito, CA"” source |
| Race starts at | Rodeo Beach, 11050 Mitchell Road, Sausalito, CA“The page lists the location as "Rodeo Beach" at "11050 Mitchell Road."” source |
| Nearest major airport | SFO“Origin: San Francisco Airport (SFO). Destination: Sausalito, CA 94965. Road distance: "The road distance is 22.5 miles." (SFO is a large hub; OAK at 28.3 road miles is farther.)” source |
| Driving distance to airport | 22.5 mi“San Francisco Airport (SFO) → Sausalito, CA 94965. "The road distance is 22.5 miles." Resolved to the town of Sausalito, not the Rodeo Beach start line.” source |