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 A Greenblat
#1252 · 1:58:23 · M67 · Group G · DR
Wave start 8:35 AM (G-DR)
Athlete B
OfficialThomas Tunny
#1249 · 1:51:12 · M58 · Group P · DR
Wave start 8:42 AM (P-DR)
Interpretation
David (G-DR) started at 8:35 AM; Thomas (P-DR) started at 8:42 AM. That gave David a 7 minutes head start on Thomas. On foot, David ran 1:58:23 and Thomas ran 1:51:12 — Thomas was 7:11 faster than David. David took official place 1252nd (time-based 1281st) and Thomas took official place 1249th (time-based 1237th). Thomas was faster on foot and finished ahead on the official clock too. Biggest swing: Thomas gained 2:34 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David A Greenblat (G-DR) started 7 min earlier than Thomas (P-DR).
- Overall place Δ
- +3
- Actual time Δ
- +7:11
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 7 min (David earlier)
- Finish clock Δ
- +0:11
- Section place Δ
- -41
Δ = David − Thomas. Negative means David is ahead/faster.
Race timeline
Computed- David (G-DR) started at 8:35 AM.
- Thomas (P-DR) started at 8:42 AM, 7:00 later.
- Actual running time: Thomas was 7:11 faster on foot than David.
- Finish clock: Thomas crossed the line 0:11 ahead of David — Thomas wins this head-to-head.
Δ (A − B): actual +7:11 · finish clock +0:11.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Thomas | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:44 | 12:16 | -0:32 |
| Stairs to Windy Gap | 9:29 | 9:05 | +0:24 |
| Windy Gap to Muir Woods | 9:07 | 7:43 | +1:24 |
| Muir Woods to Cardiac | 45:17 | 42:43 | +2:34 |
| Cardiac to White Gate | 25:24 | 24:08 | +1:16 |
| White Gate to The Stile | 13:33 | 12:10 | +1:23 |
| The Stile to Finish | 3:49 | 3:07 | +0:42 |
Δ negative = David ran the segment faster.