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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

Mike Duboe

#755 · 1:16:35 · M41 · Group Y · DR

Wave start 8:50 AM (Y-DR)

Athlete B

Official

Judi N Shaffer

#759 · 1:39:40 · F66 · Group AAA · DR

Wave start 8:27 AM (AAA-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

Mike (Y-DR) started at 8:50 AM; Judi (AAA-DR) started at 8:27 AM. That gave Judi a 23 minutes head start on Mike. On foot, Mike ran 1:16:35 and Judi ran 1:39:40 — Mike was 23:05 faster than Judi. Mike took official place 755th (time-based 541st) and Judi took official place 759th (time-based 1089th). Mike was faster on foot and finished ahead on the official clock too. Biggest swing: Mike gained 7:54 from Muir Woods to Cardiac.

Deltas

Computed

Wave start

Judi N Shaffer (AAA-DR) started 23 min earlier than Mike (Y-DR).

Overall place Δ
-4
Actual time Δ
-23:05
Section gap Δ
±0 (same section)
Wave start Δ
23 min (Judi earlier)
Finish clock Δ
-0:05
Section place Δ
+33

Δ = MikeJudi. Negative means Mike is ahead/faster.

Race timeline

Computed
Mike (Y-DR) · start 8:50 AM1:16:35
Judi (AAA-DR) · start 8:27 AM1:39:40
Earliest wave start (8:27 AM)Last finish (+1:39:40)
  • Judi (AAA-DR) started at 8:27 AM.
  • Mike (Y-DR) started at 8:50 AM, 23:00 later.
  • Actual running time: Mike was 23:05 faster on foot than Judi.
  • Finish clock: Mike crossed the line 0:05 ahead of Judi Mike wins this head-to-head.

Δ (A − B): actual -23:05 · finish clock -0:05.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentMikeJudiΔ
Start to Top of Stairs8:2111:09-2:48
Stairs to Windy Gap6:178:18-2:01
Windy Gap to Muir Woods7:268:17-0:51
Muir Woods to Cardiac28:2836:22-7:54
Cardiac to White Gate16:2722:32-6:05
White Gate to The Stile7:4010:01-2:21
The Stile to Finish1:563:01-1:05

Δ negative = Mike ran the segment faster.