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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

Isabel Diaz

#241 · 1:13:43 · F41 · Group P · INV

Wave start 8:15 AM (P-INV)

Athlete B

Official

Alex Slack

#244 · 1:06:46 · M42 · Group X · INV

Wave start 8:22 AM (X-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

Isabel (P-INV) started at 8:15 AM; Alex (X-INV) started at 8:22 AM. That gave Isabel a 7 minutes head start on Alex. On foot, Isabel ran 1:13:43 and Alex ran 1:06:46 — Alex was 6:57 faster than Isabel. Isabel took official place 241st (time-based 442nd) and Alex took official place 244th (time-based 223rd). Isabel's head start was enough to flip the official order even though Alex was faster on foot. Biggest swing: Alex gained 2:49 from Muir Woods to Cardiac.

Deltas

Computed

Wave start

Isabel Diaz (P-INV) started 7 min earlier than Alex (X-INV).

Overall place Δ
-3
Actual time Δ
+6:57
Section gap Δ
±0 (same section)
Wave start Δ
7 min (Isabel earlier)
Finish clock Δ
-0:03
Section place Δ
+1

Δ = IsabelAlex. Negative means Isabel is ahead/faster.

Race timeline

Computed
Isabel (P-INV) · start 8:15 AM1:13:43
Alex (X-INV) · start 8:22 AM1:06:46
Earliest wave start (8:15 AM)Last finish (+1:13:46)
  • Isabel (P-INV) started at 8:15 AM.
  • Alex (X-INV) started at 8:22 AM, 7:00 later.
  • Actual running time: Alex was 6:57 faster on foot than Isabel.
  • Finish clock: Isabel crossed the line 0:03 ahead of Alex Isabel wins this head-to-head.

Δ (A − B): actual +6:57 · finish clock -0:03.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentIsabelAlexΔ
Start to Top of Stairs8:328:05+0:27
Stairs to Windy Gap6:175:48+0:29
Windy Gap to Muir Woods6:305:29+1:01
Muir Woods to Cardiac27:3924:50+2:49
Cardiac to White Gate15:0014:12+0:48
White Gate to The Stile7:366:37+0:59
The Stile to Finish2:091:45+0:24

Δ negative = Isabel ran the segment faster.