Preliminary results · 1,398 finishers · source dipsea.orgLoaded 16 Jun 2026 · preliminary results may change

Head-to-head

Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.

Athlete A

Official

Mark Alan Biedlingmaier

#645 · 1:09:26 · M32 · Group Z · DR

Wave start 8:51 AM (Z-DR)

Athlete B

Official

Edward R Owens

#2 · 48:29 · M32 · Group Z · INV

Wave start 8:24 AM (Z-INV)

Comparison report

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Interpretation

Mark (Z-DR) started at 8:51 AM; Edward (Z-INV) started at 8:24 AM. That gave Edward a 27 minutes head start on Mark because the Runner wave starts 27 minutes after the Invitational wave. On foot, Mark ran 1:09:26 and Edward ran 48:29 — Edward was 20:57 faster than Mark. Mark took official place 645th (time-based 308th) and Edward took official place 2nd (time-based 1st). Edward was faster on foot and finished ahead on the official clock too. Biggest swing: Edward gained 9:25 from Muir Woods to Cardiac.

Deltas

Computed

Wave start

Edward R Owens (Z-INV) started 27 min earlier than Mark (Z-DR).

The Runner wave starts 27 min after the Invitational wave.

Overall place Δ: +643
Actual time Δ: +20:57
Section gap Δ: 27 min (Edward earlier)
Wave start Δ: 27 min (Edward earlier)
Finish clock Δ: +47:57
Section place Δ: —

Δ = Mark − Edward. Negative means Mark is ahead/faster.

Race timeline

Computed

Mark (Z-DR) · start 8:51 AM1:09:26

Edward (Z-INV) · start 8:24 AM48:29

Earliest wave start (8:24 AM)Last finish (+1:36:26)

Edward (Z-INV) started at 8:24 AM.
Mark (Z-DR) started at 8:51 AM, 27:00 later — the Invitational wave starts 27 min before the Runner wave.
Actual running time: Edward was 20:57 faster on foot than Mark.
Finish clock: Edward crossed the line 47:57 ahead of Mark — Edward wins this head-to-head.

Δ (A − B): actual +20:57 · finish clock +47:57.

Position through the course

Official

Segment-by-segment splits

Official

Segment-by-segment splits comparing the two selected athletes.
Segment	Mark	Edward	Δ
Start to Top of Stairs	8:26	5:48	+2:38
Stairs to Windy Gap	7:00	4:17	+2:43
Windy Gap to Muir Woods	5:46	4:16	+1:30
Muir Woods to Cardiac	27:17	17:52	+9:25
Cardiac to White Gate	12:58	9:40	+3:18
White Gate to The Stile	6:21	5:03	+1:18
The Stile to Finish	1:38	1:33	+0:05

Δ negative = Mark ran the segment faster.

Open Mark's dashboard · Open Edward's dashboard