The Marin Ultra Challenge, our premier Marin County long distance trail race, delivers ample hills and sweeping descents. March 9th marks the 8th edition of this tour of some of Marin’s best trails. Meticulous effort went into the design of each course for the MUC; all three distances are physically demanding (the 50 Mile has just about 11,000 feet of elevation gain) and exceptionally beautiful. The journey begins at the black sands of Rodeo Beach, and traverses the Marin Headlands, Stinson-facing Mt. Tamalpais and Muir Woods, exhibiting a range of terrain, from exposed fire-roads with incredible coastal and inland views to tight, technical single-track with redwood canopies. There is very little trail overlap, and Jim Vernon, from The Endurables and Hydrapak, spent hours and weekends developing these spectacular custom courses–we are super excited to show it off. You’ll quickly realize why Marin County has become the ultimate trail runner’s destination.

Upcoming Races

Mar 14 2020
50 KM
6,300 6,300 ft.
Single Loop Course
6 Aid Stations
14 :30 Cutoff
4 Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts
Mar 14 2020
50 Miles
10,550 10,550 ft.
Single Loop Course
9 Aid Stations
14 :30 Cutoff
4 Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts

Results

50 KM View course top times

Date Finishers Top Result Top Result (F)
03/09/19 240 3:36:06 4:29:06
03/10/18 226 3:42:51 4:36:53
03/11/17 194 3:55:23 4:14:20
03/12/16 190 4:01:37 4:23:30
03/14/15 142 3:55:06 4:15:36
03/15/14 127 4:26:54 4:47:39
06/22/13 76 3:52:47 4:27:59
06/30/12 74 4:28:42 4:57:21

50 Miles View course top times

Date Finishers Top Result Top Result (F)
03/09/19 180 6:57:04 7:52:22
03/10/18 166 7:08:19 8:36:40
03/11/17 136 6:47:48 9:00:00
03/12/16 123 6:39:38 8:16:57
03/14/15 99 7:48:56 9:06:39
03/15/14 102 7:06:52 8:41:54
06/22/13 59 7:17:47 8:25:21
06/30/12 50 7:26:35 10:26:28
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information.

More events by Inside Trail Racing

Galena Sky Trail Races
  • May 16, 2020
  • Galena, IL
8 Hours