Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialDavid W Erskine
#1375 · 2:38:57 · M76 · Group AAA · DR
Wave start 8:27 AM (AAA-DR)
Athlete B
OfficialEdward R Owens
#2 · 48:29 · M32 · Group Z · INV
Wave start 8:24 AM (Z-INV)
Comparison report
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The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.
Interpretation
David (AAA-DR) started at 8:27 AM; Edward (Z-INV) started at 8:24 AM. That gave Edward a 3 minutes head start on David because the Runner wave starts 27 minutes after the Invitational wave. On foot, David ran 2:38:57 and Edward ran 48:29 — Edward was 1:50:28 faster than David. David took official place 1375th (time-based 1376th) and Edward took official place 2nd (time-based 1st). Edward was faster on foot and finished ahead on the official clock too. Biggest swing: Edward gained 32:06 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Edward R Owens (Z-INV) started 3 min earlier than David (AAA-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +1373
- Actual time Δ
- +1:50:28
- Section gap Δ
- 27 min (Edward earlier)
- Wave start Δ
- 3 min (Edward earlier)
- Finish clock Δ
- +1:53:28
- Section place Δ
- —
Δ = David − Edward. Negative means David is ahead/faster.
Race timeline
Computed- Edward (Z-INV) started at 8:24 AM.
- David (AAA-DR) started at 8:27 AM, 3:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Edward was 1:50:28 faster on foot than David.
- Finish clock: Edward crossed the line 1:53:28 ahead of David — Edward wins this head-to-head.
Δ (A − B): actual +1:50:28 · finish clock +1:53:28.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Edward | Δ |
|---|---|---|---|
| Start to Top of Stairs | 16:20 | 5:48 | +10:32 |
| Stairs to Windy Gap | 12:34 | 4:17 | +8:17 |
| Windy Gap to Muir Woods | 16:01 | 4:16 | +11:45 |
| Muir Woods to Cardiac | 49:58 | 17:52 | +32:06 |
| Cardiac to White Gate | 38:03 | 9:40 | +28:23 |
| White Gate to The Stile | 20:27 | 5:03 | +15:24 |
| The Stile to Finish | 5:34 | 1:33 | +4:01 |
Δ negative = David ran the segment faster.