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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

Walter W Underhill

#1388 · 2:49:57 · M78 · Group AAA · DR

Wave start 8:27 AM (AAA-DR)

Athlete B

Official

James Timmer

#1383 · 3:09:25 · M72 · Group A · INV

Wave start 8:02 AM (A-INV)

Comparison report

Download the full report as a PDF, share the file, or send a link to this view.

The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.

Interpretation

Walter (AAA-DR) started at 8:27 AM; James (A-INV) started at 8:02 AM. That gave James a 25 minutes head start on Walter because the Runner wave starts 27 minutes after the Invitational wave. On foot, Walter ran 2:49:57 and James ran 3:09:25 — Walter was 19:28 faster than James. Walter took official place 1388th (time-based 1385th) and James took official place 1383rd (time-based 1395th). James's head start was enough to flip the official order even though Walter was faster on foot. Biggest swing: Walter gained 12:40 from Muir Woods to Cardiac.

Deltas

Computed

Wave start

James Timmer (A-INV) started 25 min earlier than Walter (AAA-DR).

The Runner wave starts 27 min after the Invitational wave.

Overall place Δ
+5
Actual time Δ
-19:28
Section gap Δ
27 min (James earlier)
Wave start Δ
25 min (James earlier)
Finish clock Δ
+5:32
Section place Δ

Δ = WalterJames. Negative means Walter is ahead/faster.

Race timeline

Computed
Walter (AAA-DR) · start 8:27 AM2:49:57
James (A-INV) · start 8:02 AM3:09:25
Earliest wave start (8:02 AM)Last finish (+3:14:57)
  • James (A-INV) started at 8:02 AM.
  • Walter (AAA-DR) started at 8:27 AM, 25:00 later — the Invitational wave starts 27 min before the Runner wave.
  • Actual running time: Walter was 19:28 faster on foot than James.
  • Finish clock: James crossed the line 5:32 ahead of Walter James wins this head-to-head.

Δ (A − B): actual -19:28 · finish clock +5:32.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentWalterJamesΔ
Start to Top of Stairs17:2017:54-0:34
Stairs to Windy Gap13:3416:09-2:35
Windy Gap to Muir Woods12:0013:43-1:43
Muir Woods to Cardiac59:421:12:22-12:40
Cardiac to White Gate41:2138:16+3:05
White Gate to The Stile20:4625:16-4:30
The Stile to Finish5:145:45-0:31

Δ negative = Walter ran the segment faster.