Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialRobb Briggs
#1290 · 1:57:08 · M57 · Group Q · DR
Wave start 8:43 AM (Q-DR)
Athlete B
OfficialBonnie A Sullivan
#1285 · 2:39:42 · F73 · Group AAA · INV
Wave start 8:00 AM (AAA-INV)
Interpretation
Robb (Q-DR) started at 8:43 AM; Bonnie (AAA-INV) started at 8:00 AM. That gave Bonnie a 43 minutes head start on Robb because the Runner wave starts 27 minutes after the Invitational wave. On foot, Robb ran 1:57:08 and Bonnie ran 2:39:42 — Robb was 42:34 faster than Bonnie. Robb took official place 1290th (time-based 1274th) and Bonnie took official place 1285th (time-based 1377th). Bonnie's head start was enough to flip the official order even though Robb was faster on foot. Biggest swing: Robb gained 12:35 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Bonnie A Sullivan (AAA-INV) started 43 min earlier than Robb (Q-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +5
- Actual time Δ
- -42:34
- Section gap Δ
- 27 min (Bonnie earlier)
- Wave start Δ
- 43 min (Bonnie earlier)
- Finish clock Δ
- +0:26
- Section place Δ
- —
Δ = Robb − Bonnie. Negative means Robb is ahead/faster.
Race timeline
Computed- Bonnie (AAA-INV) started at 8:00 AM.
- Robb (Q-DR) started at 8:43 AM, 43:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Robb was 42:34 faster on foot than Bonnie.
- Finish clock: Bonnie crossed the line 0:26 ahead of Robb — Bonnie wins this head-to-head.
Δ (A − B): actual -42:34 · finish clock +0:26.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Robb | Bonnie | Δ |
|---|---|---|---|
| Start to Top of Stairs | 12:53 | 18:32 | -5:39 |
| Stairs to Windy Gap | 10:25 | 13:47 | -3:22 |
| Windy Gap to Muir Woods | 9:07 | 13:45 | -4:38 |
| Muir Woods to Cardiac | 46:09 | 58:44 | -12:35 |
| Cardiac to White Gate | 22:49 | 33:23 | -10:34 |
| White Gate to The Stile | 12:36 | 17:15 | -4:39 |
| The Stile to Finish | 3:09 | 4:16 | -1:07 |
Δ negative = Robb ran the segment faster.