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
OfficialMarci Furutani
#1292 · 1:58:23 · F43 · Group P · DR
Wave start 8:42 AM (P-DR)
Interpretation
David (AAA-DR) started at 8:27 AM; Marci (P-DR) started at 8:42 AM. That gave David a 15 minutes head start on Marci. On foot, David ran 2:13:32 and Marci ran 1:58:23 — Marci was 15:09 faster than David. David took official place 1293rd (time-based 1340th) and Marci took official place 1292nd (time-based 1280th). Marci was faster on foot and finished ahead on the official clock too. Biggest swing: Marci gained 13:11 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David Rosenfeld (AAA-DR) started 15 min earlier than Marci (P-DR).
- Overall place Δ
- +1
- Actual time Δ
- +15:09
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 15 min (David earlier)
- Finish clock Δ
- +0:09
- Section place Δ
- -37
Δ = David − Marci. Negative means David is ahead/faster.
Race timeline
Computed- David (AAA-DR) started at 8:27 AM.
- Marci (P-DR) started at 8:42 AM, 15:00 later.
- Actual running time: Marci was 15:09 faster on foot than David.
- Finish clock: Marci crossed the line 0:09 ahead of David — Marci wins this head-to-head.
Δ (A − B): actual +15:09 · finish clock +0:09.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Marci | Δ |
|---|---|---|---|
| Start to Top of Stairs | 14:31 | 12:42 | +1:49 |
| Stairs to Windy Gap | 12:24 | 10:15 | +2:09 |
| Windy Gap to Muir Woods | 9:11 | 11:54 | -2:43 |
| Muir Woods to Cardiac | 53:44 | 40:33 | +13:11 |
| Cardiac to White Gate | 26:02 | 27:44 | -1:42 |
| White Gate to The Stile | 14:07 | 12:21 | +1:46 |
| The Stile to Finish | 3:33 | 2:54 | +0:39 |
Δ negative = David ran the segment faster.