Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMary Ludlam
#871 · 1:32:11 · F51 · Group L · DR
Wave start 8:39 AM (L-DR)
Athlete B
OfficialZach Edwards
#874 · 1:20:32 · M30 · Group Z · DR
Wave start 8:51 AM (Z-DR)
Interpretation
Mary (L-DR) started at 8:39 AM; Zach (Z-DR) started at 8:51 AM. That gave Mary a 12 minutes head start on Zach. On foot, Mary ran 1:32:11 and Zach ran 1:20:32 — Zach was 11:39 faster than Mary. Mary took official place 871st (time-based 948th) and Zach took official place 874th (time-based 663rd). Mary's head start was enough to flip the official order even though Zach was faster on foot. Biggest swing: Zach gained 3:52 from Cardiac to White Gate.
Deltas
ComputedWave start
Mary Ludlam (L-DR) started 12 min earlier than Zach (Z-DR).
- Overall place Δ
- -3
- Actual time Δ
- +11:39
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 12 min (Mary earlier)
- Finish clock Δ
- -0:21
- Section place Δ
- -25
Δ = Mary − Zach. Negative means Mary is ahead/faster.
Race timeline
Computed- Mary (L-DR) started at 8:39 AM.
- Zach (Z-DR) started at 8:51 AM, 12:00 later.
- Actual running time: Zach was 11:39 faster on foot than Mary.
- Finish clock: Mary crossed the line 0:21 ahead of Zach — Mary wins this head-to-head.
Δ (A − B): actual +11:39 · finish clock -0:21.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mary | Zach | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:18 | 8:25 | +1:53 |
| Stairs to Windy Gap | 7:43 | 7:00 | +0:43 |
| Windy Gap to Muir Woods | 6:53 | 6:20 | +0:33 |
| Muir Woods to Cardiac | 34:19 | 30:28 | +3:51 |
| Cardiac to White Gate | 20:45 | 16:53 | +3:52 |
| White Gate to The Stile | 9:18 | 8:43 | +0:35 |
| The Stile to Finish | 2:55 | 2:43 | +0:12 |
Δ negative = Mary ran the segment faster.