Quad Dipsea

November 29th 2025
Mill Valley, CA
28.4 Miles

Stairs, hills, and more hills. About 9,000 feet of vertical packed into 28 miles. It begins at 8:00AM at Old Mill Park (Throckmorton Avenue, Cascade Way, & Old Mill Street intersection), in Mill Valley, California. Within a few hundred yards the course heads up three flights of stairs as tall as a fifty-story building, and up some more through an old horse ranch to Windy Gap. Then it plunges down into Muir Woods, across Redwood Creek, and begins a tough grind up through both trees and grasslands over trail sections named "Dynamite", "The Hogsback", "The Rainforest", and "Cardiac." At the top of Cardiac, the course levels out with panoramic views of the Pacific Ocean before it plunges down over the rocks, roots, and stairs of "Steep Ravine" and the discouragingly steep but short climb up "Insult Hill." Finally, as the course follows the relatively gentle slope of The Moors toward the ocean, Stinson Beach is in sight a mile ahead.

Upcoming Races

Nov 29 2025
28.4 Miles
Two out-and-back trips along the famed Dipsea Trail.
9,200 9,200 ft.
Out and Back
9:00 Cutoff
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)
11/30/24 265 3:47:09 4:38:36
11/25/23 338 3:48:44 4:39:15
11/26/22 287 3:55:40 4:48:07
11/27/21 270 3:48:41 4:47:50
11/28/20 Race Cancelled
11/30/19 274 4:03:37 4:48:36
11/24/18 280 4:21:00 5:46:58
11/25/17 301 4:24:38 5:31:25
11/26/16 274 4:11:33 5:30:12
11/28/15 280 3:41:01 4:59:37
11/29/14 243 4:12:01 5:00:16
11/30/13 249 3:48:45 5:06:11
11/24/12 217 4:21:35 4:49:00
11/26/11 233 3:48:58 4:59:18
11/27/10 201 3:54:29 4:38:33
11/28/09 213 4:01:59 4:47:00
11/29/08 221 3:52:16 4:51:38
11/24/07 232 3:53:07 4:39:39
11/25/06 226 4:15:25 4:48:56
11/26/05 217 4:14:38 5:01:33
11/27/04 195 4:16:58 5:09:11
11/29/03 209 4:01:23 4:44:33
11/30/02 205 3:57:08 4:42:13
11/24/01 164 3:57:32 5:02:13
11/25/00 202 4:05:04 5:13:47
11/27/99 182 4:11:09 5:22:54
11/28/98 194 3:55:53 4:42:23
11/29/97 196 4:10:07 4:49:38
11/30/96 197 4:08:25 4:52:54
11/25/95 183 4:16:00 4:45:01
11/26/94 156 4:15:45 5:06:44
11/27/93 139 4:04:51 5:00:59
11/28/92 113 3:52:29 5:10:47
11/30/91 121 4:18:42 5:29:35
11/24/90 99 4:10:04 4:49:16

28.4 Miles Pre 1990 Open Course

Date Finishers Top Result (M) Top Result (F)
11/25/89 67 4:07:39 5:02:00
11/26/88 75 4:12:31 5:23:31
11/27/87 76 4:00:02 4:32:16
11/29/86 69 4:13:26 5:27:01
11/30/85 70 4:02:26 5:06:23
11/26/83 5 5:52:00 6:10:30

Recent Results

Cry Me a River!
Chillicothe, IL - 43 finishers
100 Miles | 100 KM | 50 KM
First Blaze Trail Race
Milton, ON - 65 finishers
50 KM
Vero Beach Octopus Ultra
Vero Beach, FL - 48 finishers
100 Miles | 100 KM | 50 Miles | 50 KM | 29 Miles
Silver Rush 50
Leadville, CO - 572 finishers
50 Miles
Spaulding Woods 50K
Northfield, NH - 29 finishers
50 KM
Siskiyou Out Back
Ashland, OR - 312 finishers
100 KM | 50 KM
Hardrock 100 Endurance Run
Silverton, CO - 114 finishers
100 Miles
Devil's Ladder Ultra
Cumberland, BC - 123 finishers
50 KM
Waugoshance Trail 50K
Mackinaw City, MI - 29 finishers
50 KM
Merrill's Mile
Dahlonega, GA - 184 finishers
48 Hours | 24 Hours | 12 Hours | 6 Hours
View All Results