Quad Dipsea

• Date: November 28, 2026 (44th - since 1983)
• Entry: (go to UltraSignup at 8am on August 1, 2026)
  Ted Knudsen, RD
  RD Emeritus: John Catts
  RD Emeritus (& Founder): John Medinger
• Limit: 310-320
• Location: Mill Valley, CA
• Cutoff: about 9 hours (7:30AM - 4:30PM) 4:30 after 2 legs; 6:45 after 3rd leg
• Course records:
  • 3:39:45 ('25) Nick Handel, 33
  • 4:35:30 ('25) Megan Roche, 35
• Aid stations: 7
• Surface: Dirt trails & stairs (4x690 in 3 flights)
• Elevations:

  Climb: 9,276'	High: 1,362'	Low: 0'	Start: 80'	Finish: 80'
  Descent: 9,276'	Cardiac Hill	Stinson Beach	Mill Valley	Mill Valley

• History:

  	Starters	Finishers	Percent	RD
  1983	8		%	John Medinger
  1993	184	139	76%	John Medinger
  1994	213	156	73%	John Medinger
  1995	231	183	79%	John Medinger
  1996	235	197	84%	John Medinger
  1997	235	196	83%	John Medinger
  1998	230	194	84%	John Medinger
  1999	223	183	82%	John Medinger
  2000	226	202	89%	John Medinger
  2001	195	166	85%	John Medinger
  2002	233	205	88%	John Medinger
  2003	240	209	87%	John Medinger
  2004	223	195	87%	John Medinger
  2005	239	218	91%	John Medinger
  2006	255	226	89%	John Medinger
  2007	247	232	94%	John Medinger
  2008	237	221	93%	John Medinger
  2009	237	212	89%	John Medinger
  2010	230	201	87%	John Medinger
  2011	265	233	88%	John Medinger
  2012	251	217	86%	John Medinger
  2013	276	249	90%	John Catts
  2014	271	243	90%	John Catts
  2015	310	280	90%	John Catts
  2016	305	275	90%	John Catts
  2017	332	300	90%	John Catts
  2018	310	280	90%	John Catts
  2019	295	275	93%	John Catts
  2020	COVID-19!
  2021	294	269	91%	John Catts
  2022	301	287	95%	John Catts
  2023	354	339	96%	John Catts
  2024	285	264	93%	Ted Knudsen
  2025	276	259	94%	Ted Knudsen
  2025			%	Ted Knudsen

For more info: web site / Frequently Asked Questions / History / photos / report(s) / results: '95 '96 '97 '98 '99 '00 '01 '02 '03 '04 '05 '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '21 '22 '23 '24 '25 / splits: '01 '06 '07 '13 '14 '18 '19 '21 '22 '23 '24 '25 / QD map
(data from UltraRunning, Bill White, Bob Henson-Medinger, Doug White, Ed Bodington, Errol Jones, Gary Wang, John Catts, John Edgcomb, John Medinger, Laura Kulsik, Lisa Henson, Natalie Bodington, Pat Wellington, Sally Smith, Steve Patt, Steve Reagan & Ted Knudsen)

"http://www.Run100s.com/qd.htm" (updated: 12/2/25) StanJ@Run100s.com