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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

Robert J Simon

#130 · 1:15:06 · M66 · Group H · INV

Wave start 8:09 AM (H-INV)

Athlete B

Official

David Hafferty

#127 · 1:00:58 · M36 · Group Y · INV

Wave start 8:23 AM (Y-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

Robert (H-INV) started at 8:09 AM; David (Y-INV) started at 8:23 AM. That gave Robert a 14 minutes head start on David. On foot, Robert ran 1:15:06 and David ran 1:00:58 — David was 14:08 faster than Robert. Robert took official place 130th (time-based 484th) and David took official place 127th (time-based 77th). David was faster on foot and finished ahead on the official clock too. Biggest swing: David gained 4:11 from Cardiac to White Gate.

Deltas

Computed

Wave start

Robert J Simon (H-INV) started 14 min earlier than David (Y-INV).

Overall place Δ
+3
Actual time Δ
+14:08
Section gap Δ
±0 (same section)
Wave start Δ
14 min (Robert earlier)
Finish clock Δ
+0:08
Section place Δ
-22

Δ = RobertDavid. Negative means Robert is ahead/faster.

Race timeline

Computed
Robert (H-INV) · start 8:09 AM1:15:06
David (Y-INV) · start 8:23 AM1:00:58
Earliest wave start (8:09 AM)Last finish (+1:15:06)
  • Robert (H-INV) started at 8:09 AM.
  • David (Y-INV) started at 8:23 AM, 14:00 later.
  • Actual running time: David was 14:08 faster on foot than Robert.
  • Finish clock: David crossed the line 0:08 ahead of Robert David wins this head-to-head.

Δ (A − B): actual +14:08 · finish clock +0:08.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentRobertDavidΔ
Start to Top of Stairs8:347:05+1:29
Stairs to Windy Gap6:225:21+1:01
Windy Gap to Muir Woods6:485:08+1:40
Muir Woods to Cardiac26:3823:08+3:30
Cardiac to White Gate16:2412:13+4:11
White Gate to The Stile8:076:21+1:46
The Stile to Finish2:131:42+0:31

Δ negative = Robert ran the segment faster.