Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMarley Nacco
#410 · 1:19:49 · F19 · Group N · INV
Wave start 8:14 AM (N-INV)
Athlete B
OfficialBrian W McCurdy
#411 · 1:27:51 · M69 · Group E · INV
Wave start 8:06 AM (E-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
Marley (N-INV) started at 8:14 AM; Brian (E-INV) started at 8:06 AM. That gave Brian a 8 minutes head start on Marley. On foot, Marley ran 1:19:49 and Brian ran 1:27:51 — Marley was 8:02 faster than Brian. Marley took official place 410th (time-based 647th) and Brian took official place 411th (time-based 860th). Marley was faster on foot and finished ahead on the official clock too. Biggest swing: Marley gained 1:55 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Brian W McCurdy (E-INV) started 8 min earlier than Marley (N-INV).
- Overall place Δ
- -1
- Actual time Δ
- -8:02
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 8 min (Brian earlier)
- Finish clock Δ
- -0:02
- Section place Δ
- +7
Δ = Marley − Brian. Negative means Marley is ahead/faster.
Race timeline
Computed- Brian (E-INV) started at 8:06 AM.
- Marley (N-INV) started at 8:14 AM, 8:00 later.
- Actual running time: Marley was 8:02 faster on foot than Brian.
- Finish clock: Marley crossed the line 0:02 ahead of Brian — Marley wins this head-to-head.
Δ (A − B): actual -8:02 · finish clock -0:02.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Marley | Brian | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:51 | 10:53 | -2:02 |
| Stairs to Windy Gap | 7:33 | 8:04 | -0:31 |
| Windy Gap to Muir Woods | 6:33 | 7:33 | -1:00 |
| Muir Woods to Cardiac | 31:00 | 32:55 | -1:55 |
| Cardiac to White Gate | 16:36 | 17:56 | -1:20 |
| White Gate to The Stile | 7:18 | 8:27 | -1:09 |
| The Stile to Finish | 1:58 | 2:03 | -0:05 |
Δ negative = Marley ran the segment faster.