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
OfficialChris Lundy
#1 · 1:00:42 · F55 · Group J · INV
Wave start 8:10 AM (J-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; Chris (J-INV) started at 8:10 AM. That gave Chris a 17 minutes head start on David because the Runner wave starts 27 minutes after the Invitational wave. On foot, David ran 2:38:57 and Chris ran 1:00:42 — Chris was 1:38:15 faster than David. David took official place 1375th (time-based 1376th) and Chris took official place 1st (time-based 71st). Chris was faster on foot and finished ahead on the official clock too. Biggest swing: Chris gained 27:48 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Chris Lundy (J-INV) started 17 min earlier than David (AAA-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +1374
- Actual time Δ
- +1:38:15
- Section gap Δ
- 27 min (Chris earlier)
- Wave start Δ
- 17 min (Chris earlier)
- Finish clock Δ
- +1:55:15
- Section place Δ
- —
Δ = David − Chris. Negative means David is ahead/faster.
Race timeline
Computed- Chris (J-INV) started at 8:10 AM.
- David (AAA-DR) started at 8:27 AM, 17:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Chris was 1:38:15 faster on foot than David.
- Finish clock: Chris crossed the line 1:55:15 ahead of David — Chris wins this head-to-head.
Δ (A − B): actual +1:38:15 · finish clock +1:55:15.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Chris | Δ |
|---|---|---|---|
| Start to Top of Stairs | 16:20 | 7:31 | +8:49 |
| Stairs to Windy Gap | 12:34 | 5:35 | +6:59 |
| Windy Gap to Muir Woods | 16:01 | 5:25 | +10:36 |
| Muir Woods to Cardiac | 49:58 | 22:10 | +27:48 |
| Cardiac to White Gate | 38:03 | 12:14 | +25:49 |
| White Gate to The Stile | 20:27 | 5:57 | +14:30 |
| The Stile to Finish | 5:34 | 1:50 | +3:44 |
Δ negative = David ran the segment faster.