Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialIrena Brooks
#442 · 1:22:00 · F14 · Group M · INV
Wave start 8:13 AM (M-INV)
Athlete B
OfficialGray Harrelson
#439 · 1:12:54 · M42 · Group X · INV
Wave start 8:22 AM (X-INV)
Comparison report
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The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.
Interpretation
Irena (M-INV) started at 8:13 AM; Gray (X-INV) started at 8:22 AM. That gave Irena a 9 minutes head start on Gray. On foot, Irena ran 1:22:00 and Gray ran 1:12:54 — Gray was 9:06 faster than Irena. Irena took official place 442nd (time-based 707th) and Gray took official place 439th (time-based 419th). Gray was faster on foot and finished ahead on the official clock too. Biggest swing: Gray gained 5:01 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Irena Brooks (M-INV) started 9 min earlier than Gray (X-INV).
- Overall place Δ
- +3
- Actual time Δ
- +9:06
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (Irena earlier)
- Finish clock Δ
- +0:06
- Section place Δ
- -14
Δ = Irena − Gray. Negative means Irena is ahead/faster.
Race timeline
Computed- Irena (M-INV) started at 8:13 AM.
- Gray (X-INV) started at 8:22 AM, 9:00 later.
- Actual running time: Gray was 9:06 faster on foot than Irena.
- Finish clock: Gray crossed the line 0:06 ahead of Irena — Gray wins this head-to-head.
Δ (A − B): actual +9:06 · finish clock +0:06.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Irena | Gray | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:47 | 8:37 | +0:10 |
| Stairs to Windy Gap | 7:19 | 6:30 | +0:49 |
| Windy Gap to Muir Woods | 6:12 | 6:23 | -0:11 |
| Muir Woods to Cardiac | 33:12 | 28:11 | +5:01 |
| Cardiac to White Gate | 16:22 | 14:19 | +2:03 |
| White Gate to The Stile | 8:01 | 7:01 | +1:00 |
| The Stile to Finish | 2:07 | 1:53 | +0:14 |
Δ negative = Irena ran the segment faster.