Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialEric M Spector
#515 · 1:44:05 · M79 · Group AAA · INV
Wave start 8:00 AM (AAA-INV)
Athlete B
OfficialDave Covey
#520 · 1:34:42 · M65 · Group J · INV
Wave start 8:10 AM (J-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
Eric (AAA-INV) started at 8:00 AM; Dave (J-INV) started at 8:10 AM. That gave Eric a 10 minutes head start on Dave. On foot, Eric ran 1:44:05 and Dave ran 1:34:42 — Dave was 9:23 faster than Eric. Eric took official place 515th (time-based 1156th) and Dave took official place 520th (time-based 1001st). Eric's head start was enough to flip the official order even though Dave was faster on foot. Biggest swing: Dave gained 2:49 from Cardiac to White Gate.
Deltas
ComputedWave start
Eric M Spector (AAA-INV) started 10 min earlier than Dave (J-INV).
- Overall place Δ
- -5
- Actual time Δ
- +9:23
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 10 min (Eric earlier)
- Finish clock Δ
- -0:37
- Section place Δ
- -1
Δ = Eric − Dave. Negative means Eric is ahead/faster.
Race timeline
Computed- Eric (AAA-INV) started at 8:00 AM.
- Dave (J-INV) started at 8:10 AM, 10:00 later.
- Actual running time: Dave was 9:23 faster on foot than Eric.
- Finish clock: Eric crossed the line 0:37 ahead of Dave — Eric wins this head-to-head.
Δ (A − B): actual +9:23 · finish clock -0:37.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Eric | Dave | Δ |
|---|---|---|---|
| Start to Top of Stairs | 12:02 | 11:29 | +0:33 |
| Stairs to Windy Gap | 9:30 | 8:32 | +0:58 |
| Windy Gap to Muir Woods | 8:59 | 7:10 | +1:49 |
| Muir Woods to Cardiac | 37:56 | 36:27 | +1:29 |
| Cardiac to White Gate | 22:01 | 19:12 | +2:49 |
| White Gate to The Stile | 10:48 | 9:18 | +1:30 |
| The Stile to Finish | 2:49 | 2:34 | +0:15 |
Δ negative = Eric ran the segment faster.