The 50/50 has a long and rich history as one of the most challenging trail runs on the West Coast. The 50/50 offers a wide variety of terrain for all types of runners, with plenty of climbing and descending. Our course has enough dirt, rock, pine trees, excellent single track, altitude and exquisite views of the Sierra Nevada and the Truckee Meadows to satisfy the demands of runners who yearn for a fun, challenging day.

Upcoming Races

May 21 2022
50 KM
6,100 6,100 ft.
Single Loop Course
7 Aid Stations
4 Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts
May 21 2022
50 Miles
9,500 9,500 ft.
Single Loop Course
12 Aid Stations
4 Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts

Results

Date Finishers Top Result (M) Top Result (F)
05/15/21 70 4:30:51 5:13:29
05/16/20 Race Cancelled
05/18/19 77 3:55:07 6:02:08
05/19/18 83 4:05:12 5:28:01
05/20/17 75 4:04:44 5:33:12
05/21/16 72 3:58:51 4:34:48
05/16/15 81 4:18:27 5:09:01
05/17/14 70 4:38:27 4:50:21
05/18/13 84 4:21:06 5:09:30
05/19/12 67 4:17:59 5:20:15
05/21/11 53 4:15:11 4:52:04
05/15/10 71 4:02:31 4:49:21
05/16/09 39 4:25:21 4:58:25
05/17/08 43 5:05:05 5:16:44
05/19/07 67 4:53:11 5:41:38
05/20/06 37 5:43:44 7:11:38
05/21/05 46 5:19:16 5:58:38
05/15/04 66 5:02:59 6:37:29
05/17/03 79 5:35:19 6:29:11
05/18/02 73 5:25:53 6:11:27
05/19/01 68 5:32:00 6:20:25
05/20/00 64 5:17:28 6:24:36
05/15/99 76 5:30:02 6:31:55
05/16/98 66 6:07:10 7:40:28
05/17/97 82 5:29:26 6:19:54
05/18/96 66 5:57:32 7:35:39
05/20/95 51 5:33:16 8:05:36
05/21/94 59 4:59:17 6:11:33
05/16/92 47 4:39:52 6:41:19
05/19/90 53 5:05:00 6:31:00
05/20/89 30 5:36:03 7:18:19
05/21/88 15 6:12:14 6:50:49
Date Finishers Top Result (M) Top Result (F)
05/15/21 59 6:33:22 9:42:59
05/16/20 Race Cancelled
05/18/19 77 7:15:05 9:01:27
05/19/18 80 7:30:56 8:18:56
05/20/17 64 7:31:18 9:08:40
05/21/16 67 7:24:57 7:41:54
05/16/15 82 7:37:22 7:38:19
05/17/14 66 7:48:07 8:53:29
05/18/13 85 7:05:54 8:09:46
05/19/12 65 7:42:49 8:36:12
05/21/11 54 7:16:26 7:54:56
05/15/10 54 7:12:59 7:38:42
05/16/09 38 7:11:33 8:24:52
05/17/08 31 7:46:20 9:28:28
05/19/07 53 7:49:07 9:05:18
05/20/06 35 8:37:37 9:16:43
05/21/05 37 7:35:59 9:38:16
05/15/04 41 8:01:57 8:44:55
05/17/03 29 7:26:56 9:13:37
05/18/02 35 8:02:33 9:39:03
05/19/01 45 7:41:44 9:27:05
05/20/00 21 8:36:52 9:45:07
05/15/99 29 8:00:03 10:25:27
05/16/98 2 8:18:57
05/17/97 60 8:04:42 9:54:09
05/18/96 39 8:26:20 10:18:44
05/20/95 37 8:56:42 11:15:09
05/21/94 41 7:29:54 7:29:36
05/16/92 50 6:52:53 8:41:24
05/19/90 44 7:01:00 8:58:00
05/20/89 26 8:09:41 11:51:40
05/21/88 20 8:54:23 9:16:28
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. If you see an error, please let us know

Earth Day 50K

  • Apr 16, 2022
  • Crystal Lake, IL
50 KM