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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

James L Shirley

#432 · 1:11:41 · M35 · Group Y · INV

Wave start 8:23 AM (Y-INV)

Athlete B

Official

Geoff Vaughan

#427 · 1:21:24 · M61 · Group M · INV

Wave start 8:13 AM (M-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

James (Y-INV) started at 8:23 AM; Geoff (M-INV) started at 8:13 AM. That gave Geoff a 10 minutes head start on James. On foot, James ran 1:11:41 and Geoff ran 1:21:24 — James was 9:43 faster than Geoff. James took official place 432nd (time-based 379th) and Geoff took official place 427th (time-based 690th). Geoff's head start was enough to flip the official order even though James was faster on foot. Biggest swing: James gained 3:30 from Muir Woods to Cardiac.

Deltas

Computed

Wave start

Geoff Vaughan (M-INV) started 10 min earlier than James (Y-INV).

Overall place Δ
+5
Actual time Δ
-9:43
Section gap Δ
±0 (same section)
Wave start Δ
10 min (Geoff earlier)
Finish clock Δ
+0:17
Section place Δ
+58

Δ = JamesGeoff. Negative means James is ahead/faster.

Race timeline

Computed
James (Y-INV) · start 8:23 AM1:11:41
Geoff (M-INV) · start 8:13 AM1:21:24
Earliest wave start (8:13 AM)Last finish (+1:21:41)
  • Geoff (M-INV) started at 8:13 AM.
  • James (Y-INV) started at 8:23 AM, 10:00 later.
  • Actual running time: James was 9:43 faster on foot than Geoff.
  • Finish clock: Geoff crossed the line 0:17 ahead of James Geoff wins this head-to-head.

Δ (A − B): actual -9:43 · finish clock +0:17.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentJamesGeoffΔ
Start to Top of Stairs8:0610:05-1:59
Stairs to Windy Gap6:047:21-1:17
Windy Gap to Muir Woods5:366:20-0:44
Muir Woods to Cardiac28:4332:13-3:30
Cardiac to White Gate14:0715:36-1:29
White Gate to The Stile7:127:29-0:17
The Stile to Finish1:532:20-0:27

Δ negative = James ran the segment faster.