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
OfficialKosara Fackler
#869 · 1:31:09 · F13 · Group M · DR
Wave start 8:40 AM (M-DR)
Interpretation
Mary (L-DR) started at 8:39 AM; Kosara (M-DR) started at 8:40 AM. That gave Mary a 1 minute head start on Kosara. On foot, Mary ran 1:32:11 and Kosara ran 1:31:09 — Kosara was 1:02 faster than Mary. Mary took official place 871st (time-based 948th) and Kosara took official place 869th (time-based 930th). Kosara was faster on foot and finished ahead on the official clock too. Biggest swing: Kosara gained 2:57 from Cardiac to White Gate.
Deltas
ComputedWave start
Mary Ludlam (L-DR) started 1 min earlier than Kosara (M-DR).
- Overall place Δ
- +2
- Actual time Δ
- +1:02
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Mary earlier)
- Finish clock Δ
- +0:02
- Section place Δ
- -5
Δ = Mary − Kosara. Negative means Mary is ahead/faster.
Race timeline
Computed- Mary (L-DR) started at 8:39 AM.
- Kosara (M-DR) started at 8:40 AM, 1:00 later.
- Actual running time: Kosara was 1:02 faster on foot than Mary.
- Finish clock: Kosara crossed the line 0:02 ahead of Mary — Kosara wins this head-to-head.
Δ (A − B): actual +1:02 · finish clock +0:02.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mary | Kosara | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:18 | 10:05 | +0:13 |
| Stairs to Windy Gap | 7:43 | 8:02 | -0:19 |
| Windy Gap to Muir Woods | 6:53 | 7:34 | -0:41 |
| Muir Woods to Cardiac | 34:19 | 36:35 | -2:16 |
| Cardiac to White Gate | 20:45 | 17:48 | +2:57 |
| White Gate to The Stile | 9:18 | 8:30 | +0:48 |
| The Stile to Finish | 2:55 | 2:35 | +0:20 |
Δ negative = Mary ran the segment faster.