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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

Mark Alan Biedlingmaier

#645 · 1:09:26 · M32 · Group Z · DR

Wave start 8:51 AM (Z-DR)

Athlete B

Official

Colin Luce

#646 · 1:10:27 · M40 · Group Y · DR

Wave start 8:50 AM (Y-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

Mark (Z-DR) started at 8:51 AM; Colin (Y-DR) started at 8:50 AM. That gave Colin a 1 minute head start on Mark. On foot, Mark ran 1:09:26 and Colin ran 1:10:27 — Mark was 1:01 faster than Colin. Mark took official place 645th (time-based 308th) and Colin took official place 646th (time-based 340th). Mark was faster on foot and finished ahead on the official clock too. Biggest swing: Mark gained 1:16 from Cardiac to White Gate.

Deltas

Computed

Wave start

Colin Luce (Y-DR) started 1 min earlier than Mark (Z-DR).

Overall place Δ
-1
Actual time Δ
-1:01
Section gap Δ
±0 (same section)
Wave start Δ
1 min (Colin earlier)
Finish clock Δ
-0:01
Section place Δ
-9

Δ = MarkColin. Negative means Mark is ahead/faster.

Race timeline

Computed
Mark (Z-DR) · start 8:51 AM1:09:26
Colin (Y-DR) · start 8:50 AM1:10:27
Earliest wave start (8:50 AM)Last finish (+1:10:27)
  • Colin (Y-DR) started at 8:50 AM.
  • Mark (Z-DR) started at 8:51 AM, 1:00 later.
  • Actual running time: Mark was 1:01 faster on foot than Colin.
  • Finish clock: Mark crossed the line 0:01 ahead of Colin Mark wins this head-to-head.

Δ (A − B): actual -1:01 · finish clock -0:01.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentMarkColinΔ
Start to Top of Stairs8:268:34-0:08
Stairs to Windy Gap7:006:02+0:58
Windy Gap to Muir Woods5:465:49-0:03
Muir Woods to Cardiac27:1727:09+0:08
Cardiac to White Gate12:5814:14-1:16
White Gate to The Stile6:216:45-0:24
The Stile to Finish1:381:54-0:16

Δ negative = Mark ran the segment faster.