Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialRoy A Rivers
#170 · 1:19:28 · M69 · Group E · INV
Wave start 8:06 AM (E-INV)
Athlete B
OfficialEdward R Owens
#2 · 48:29 · M32 · Group Z · INV
Wave start 8:24 AM (Z-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
Roy (E-INV) started at 8:06 AM; Edward (Z-INV) started at 8:24 AM. That gave Roy a 18 minutes head start on Edward. On foot, Roy ran 1:19:28 and Edward ran 48:29 — Edward was 30:59 faster than Roy. Roy took official place 170th (time-based 631st) and Edward took official place 2nd (time-based 1st). Edward was faster on foot and finished ahead on the official clock too. Biggest swing: Edward gained 13:53 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Roy A Rivers (E-INV) started 18 min earlier than Edward (Z-INV).
- Overall place Δ
- +168
- Actual time Δ
- +30:59
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 18 min (Roy earlier)
- Finish clock Δ
- +12:59
- Section place Δ
- +1
Δ = Roy − Edward. Negative means Roy is ahead/faster.
Race timeline
Computed- Roy (E-INV) started at 8:06 AM.
- Edward (Z-INV) started at 8:24 AM, 18:00 later.
- Actual running time: Edward was 30:59 faster on foot than Roy.
- Finish clock: Edward crossed the line 12:59 ahead of Roy — Edward wins this head-to-head.
Δ (A − B): actual +30:59 · finish clock +12:59.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Roy | Edward | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:07 | 5:48 | +4:19 |
| Stairs to Windy Gap | 7:28 | 4:17 | +3:11 |
| Windy Gap to Muir Woods | 6:08 | 4:16 | +1:52 |
| Muir Woods to Cardiac | 31:45 | 17:52 | +13:53 |
| Cardiac to White Gate | 14:40 | 9:40 | +5:00 |
| White Gate to The Stile | 7:06 | 5:03 | +2:03 |
| The Stile to Finish | 2:14 | 1:33 | +0:41 |
Δ negative = Roy ran the segment faster.