Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialRobert (Bob) F Knox
#1332 · 2:48:09 · M80 · Group AAA · INV
Wave start 8:00 AM (AAA-INV)
Athlete B
OfficialGregg M Stone
#1336 · 2:19:55 · M71 · Group B · DR
Wave start 8:30 AM (B-DR)
Interpretation
Robert (Bob) (AAA-INV) started at 8:00 AM; Gregg (B-DR) started at 8:30 AM. That gave Robert (Bob) a 30 minutes head start on Gregg because the Runner wave starts 27 minutes after the Invitational wave. On foot, Robert (Bob) ran 2:48:09 and Gregg ran 2:19:55 — Gregg was 28:14 faster than Robert (Bob). Robert (Bob) took official place 1332nd (time-based 1384th) and Gregg took official place 1336th (time-based 1351st). Robert (Bob)'s head start was enough to flip the official order even though Gregg was faster on foot. Biggest swing: Gregg gained 10:14 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Robert (Bob) F Knox (AAA-INV) started 30 min earlier than Gregg (B-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- -4
- Actual time Δ
- +28:14
- Section gap Δ
- 27 min (Robert (Bob) earlier)
- Wave start Δ
- 30 min (Robert (Bob) earlier)
- Finish clock Δ
- -1:46
- Section place Δ
- —
Δ = Robert (Bob) − Gregg. Negative means Robert (Bob) is ahead/faster.
Race timeline
Computed- Robert (Bob) (AAA-INV) started at 8:00 AM.
- Gregg (B-DR) started at 8:30 AM, 30:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Gregg was 28:14 faster on foot than Robert (Bob).
- Finish clock: Robert (Bob) crossed the line 1:46 ahead of Gregg — Robert (Bob) wins this head-to-head.
Δ (A − B): actual +28:14 · finish clock -1:46.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Robert (Bob) | Gregg | Δ |
|---|---|---|---|
| Start to Top of Stairs | 16:50 | 15:27 | +1:23 |
| Stairs to Windy Gap | 13:33 | 11:55 | +1:38 |
| Windy Gap to Muir Woods | 11:26 | 11:05 | +0:21 |
| Muir Woods to Cardiac | 1:02:52 | 52:38 | +10:14 |
| Cardiac to White Gate | 35:39 | 30:46 | +4:53 |
| White Gate to The Stile | 22:11 | 14:58 | +7:13 |
| The Stile to Finish | 5:38 | 3:06 | +2:32 |
Δ negative = Robert (Bob) ran the segment faster.