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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

Jon Thompson

#649 · 1:10:43 · M33 · Group Y · DR

Wave start 8:50 AM (Y-DR)

Athlete B

Official

Koji Glenn-Horstein

#653 · 1:19:49 · M10 · Group N · DR

Wave start 8:41 AM (N-DR)

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

Jon (Y-DR) started at 8:50 AM; Koji (N-DR) started at 8:41 AM. That gave Koji a 9 minutes head start on Jon. On foot, Jon ran 1:10:43 and Koji ran 1:19:49 — Jon was 9:06 faster than Koji. Jon took official place 649th (time-based 347th) and Koji took official place 653rd (time-based 646th). Jon was faster on foot and finished ahead on the official clock too. Biggest swing: Jon gained 2:20 from Cardiac to White Gate.

Deltas

Computed

Wave start

Koji Glenn-Horstein (N-DR) started 9 min earlier than Jon (Y-DR).

Overall place Δ
-4
Actual time Δ
-9:06
Section gap Δ
±0 (same section)
Wave start Δ
9 min (Koji earlier)
Finish clock Δ
-0:06
Section place Δ
+17

Δ = JonKoji. Negative means Jon is ahead/faster.

Race timeline

Computed
Jon (Y-DR) · start 8:50 AM1:10:43
Koji (N-DR) · start 8:41 AM1:19:49
Earliest wave start (8:41 AM)Last finish (+1:19:49)
  • Koji (N-DR) started at 8:41 AM.
  • Jon (Y-DR) started at 8:50 AM, 9:00 later.
  • Actual running time: Jon was 9:06 faster on foot than Koji.
  • Finish clock: Jon crossed the line 0:06 ahead of Koji Jon wins this head-to-head.

Δ (A − B): actual -9:06 · finish clock -0:06.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentJonKojiΔ
Start to Top of Stairs8:069:00-0:54
Stairs to Windy Gap5:486:48-1:00
Windy Gap to Muir Woods5:527:08-1:16
Muir Woods to Cardiac27:2229:41-2:19
Cardiac to White Gate14:2616:46-2:20
White Gate to The Stile7:108:07-0:57
The Stile to Finish1:592:19-0:20

Δ negative = Jon ran the segment faster.