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
OfficialHeather Pedersen
#866 · 1:36:03 · F56 · Group G · DR
Wave start 8:35 AM (G-DR)
Interpretation
Mary (L-DR) started at 8:39 AM; Heather (G-DR) started at 8:35 AM. That gave Heather a 4 minutes head start on Mary. On foot, Mary ran 1:32:11 and Heather ran 1:36:03 — Mary was 3:52 faster than Heather. Mary took official place 871st (time-based 948th) and Heather took official place 866th (time-based 1032nd). Heather's head start was enough to flip the official order even though Mary was faster on foot. Biggest swing: Mary gained 2:07 from Windy Gap to Muir Woods.
Deltas
ComputedWave start
Heather Pedersen (G-DR) started 4 min earlier than Mary (L-DR).
- Overall place Δ
- +5
- Actual time Δ
- -3:52
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 4 min (Heather earlier)
- Finish clock Δ
- +0:08
- Section place Δ
- +8
Δ = Mary − Heather. Negative means Mary is ahead/faster.
Race timeline
Computed- Heather (G-DR) started at 8:35 AM.
- Mary (L-DR) started at 8:39 AM, 4:00 later.
- Actual running time: Mary was 3:52 faster on foot than Heather.
- Finish clock: Heather crossed the line 0:08 ahead of Mary — Heather wins this head-to-head.
Δ (A − B): actual -3:52 · finish clock +0:08.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mary | Heather | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:18 | 11:50 | -1:32 |
| Stairs to Windy Gap | 7:43 | 8:16 | -0:33 |
| Windy Gap to Muir Woods | 6:53 | 9:00 | -2:07 |
| Muir Woods to Cardiac | 34:19 | 35:26 | -1:07 |
| Cardiac to White Gate | 20:45 | 19:55 | +0:50 |
| White Gate to The Stile | 9:18 | 9:11 | +0:07 |
| The Stile to Finish | 2:55 | 2:25 | +0:30 |
Δ negative = Mary ran the segment faster.