Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialAlena D Lanos
#421 · 1:18:11 · F35 · Group Q · INV
Wave start 8:16 AM (Q-INV)
Athlete B
OfficialSibley McMonsef
#418 · 1:23:02 · F11 · Group K · INV
Wave start 8:11 AM (K-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
Alena (Q-INV) started at 8:16 AM; Sibley (K-INV) started at 8:11 AM. That gave Sibley a 5 minutes head start on Alena. On foot, Alena ran 1:18:11 and Sibley ran 1:23:02 — Alena was 4:51 faster than Sibley. Alena took official place 421st (time-based 584th) and Sibley took official place 418th (time-based 740th). Sibley's head start was enough to flip the official order even though Alena was faster on foot. Biggest swing: Alena gained 3:56 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Sibley McMonsef (K-INV) started 5 min earlier than Alena (Q-INV).
- Overall place Δ
- +3
- Actual time Δ
- -4:51
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 5 min (Sibley earlier)
- Finish clock Δ
- +0:09
- Section place Δ
- +34
Δ = Alena − Sibley. Negative means Alena is ahead/faster.
Race timeline
Computed- Sibley (K-INV) started at 8:11 AM.
- Alena (Q-INV) started at 8:16 AM, 5:00 later.
- Actual running time: Alena was 4:51 faster on foot than Sibley.
- Finish clock: Sibley crossed the line 0:09 ahead of Alena — Sibley wins this head-to-head.
Δ (A − B): actual -4:51 · finish clock +0:09.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Alena | Sibley | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:05 | 9:01 | +0:04 |
| Stairs to Windy Gap | 6:48 | 7:40 | -0:52 |
| Windy Gap to Muir Woods | 6:06 | 6:57 | -0:51 |
| Muir Woods to Cardiac | 28:44 | 32:40 | -3:56 |
| Cardiac to White Gate | 17:22 | 16:10 | +1:12 |
| White Gate to The Stile | 7:52 | 8:09 | -0:17 |
| The Stile to Finish | 2:14 | 2:25 | -0:11 |
Δ negative = Alena ran the segment faster.