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 Rosenfeld
#1293 · 2:13:32 · M74 · Group AAA · DR
Wave start 8:27 AM (AAA-DR)
Athlete B
OfficialJohn Gavin
#1295 · 1:53:48 · M48 · Group V · DR
Wave start 8:47 AM (V-DR)
Interpretation
David (AAA-DR) started at 8:27 AM; John (V-DR) started at 8:47 AM. That gave David a 20 minutes head start on John. On foot, David ran 2:13:32 and John ran 1:53:48 — John was 19:44 faster than David. David took official place 1293rd (time-based 1340th) and John took official place 1295th (time-based 1255th). David's head start was enough to flip the official order even though John was faster on foot. Biggest swing: John gained 10:13 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David Rosenfeld (AAA-DR) started 20 min earlier than John (V-DR).
- Overall place Δ
- -2
- Actual time Δ
- +19:44
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 20 min (David earlier)
- Finish clock Δ
- -0:16
- Section place Δ
- -7
Δ = David − John. Negative means David is ahead/faster.
Race timeline
Computed- David (AAA-DR) started at 8:27 AM.
- John (V-DR) started at 8:47 AM, 20:00 later.
- Actual running time: John was 19:44 faster on foot than David.
- Finish clock: David crossed the line 0:16 ahead of John — David wins this head-to-head.
Δ (A − B): actual +19:44 · finish clock -0:16.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | John | Δ |
|---|---|---|---|
| Start to Top of Stairs | 14:31 | 11:02 | +3:29 |
| Stairs to Windy Gap | 12:24 | 10:11 | +2:13 |
| Windy Gap to Muir Woods | 9:11 | 7:28 | +1:43 |
| Muir Woods to Cardiac | 53:44 | 43:31 | +10:13 |
| Cardiac to White Gate | 26:02 | 23:06 | +2:56 |
| White Gate to The Stile | 14:07 | 13:50 | +0:17 |
| The Stile to Finish | 3:33 | 4:40 | -1:07 |
Δ negative = David ran the segment faster.