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
OfficialRalph Gonzales
#445 · 1:23:09 · M62 · Group L · INV
Wave start 8:12 AM (L-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; Ralph (L-INV) started at 8:12 AM. That gave Ralph a 1 minute head start on Irena. On foot, Irena ran 1:22:00 and Ralph ran 1:23:09 — Irena was 1:09 faster than Ralph. Irena took official place 442nd (time-based 707th) and Ralph took official place 445th (time-based 744th). Irena was faster on foot and finished ahead on the official clock too. Biggest swing: Ralph gained 0:50 from Cardiac to White Gate.
Deltas
ComputedWave start
Ralph Gonzales (L-INV) started 1 min earlier than Irena (M-INV).
- Overall place Δ
- -3
- Actual time Δ
- -1:09
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Ralph earlier)
- Finish clock Δ
- -0:09
- Section place Δ
- +5
Δ = Irena − Ralph. Negative means Irena is ahead/faster.
Race timeline
Computed- Ralph (L-INV) started at 8:12 AM.
- Irena (M-INV) started at 8:13 AM, 1:00 later.
- Actual running time: Irena was 1:09 faster on foot than Ralph.
- Finish clock: Irena crossed the line 0:09 ahead of Ralph — Irena wins this head-to-head.
Δ (A − B): actual -1:09 · finish clock -0:09.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Irena | Ralph | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:47 | 10:07 | -1:20 |
| Stairs to Windy Gap | 7:19 | 7:11 | +0:08 |
| Windy Gap to Muir Woods | 6:12 | 6:29 | -0:17 |
| Muir Woods to Cardiac | 33:12 | 33:32 | -0:20 |
| Cardiac to White Gate | 16:22 | 15:32 | +0:50 |
| White Gate to The Stile | 8:01 | 7:55 | +0:06 |
| The Stile to Finish | 2:07 | 2:23 | -0:16 |
Δ negative = Irena ran the segment faster.