Javelina Jundred Finish Time Predictor
Javelina Jundred race stats pre-loaded (161 km, 1,919 m D+). Enter a known race result to get an elevation-adjusted finish time estimate.
Full Javelina Jundred - 100 Mile course data: aid stations, cutoffs, course profile
1. Your race
2. How should we estimate you?
Same as gain. Edit if different.
Hours, or h:mm
3. Your predicted finish
180.2 km-effort (ITRA, gain only)189.8 km-effort
Add a past race or your index to get a finish time.
Javelina Jundred finish times by UTMB Index
Predicted finish on the Javelina Jundred course (161.0 km, 1,919 m D+) for each UTMB Index, with the margin to the 30h00 cutoff.
| UTMB Index | Predicted finish | Average pace | Margin to cutoff |
|---|---|---|---|
| 850 | 11h31 | 4:18 /km | +18h29 |
| 800 | 12h36 | 4:42 /km | +17h24 |
| 750 | 13h46 | 5:08 /km | +16h14 |
| 700competitive | 15h03 | 5:36 /km | +14h57 |
| 650 | 16h27 | 6:08 /km | +13h33 |
| 600 | 17h59 | 6:42 /km | +12h01 |
| 550 | 19h39 | 7:19 /km | +10h21 |
| 500mid-pack | 21h29 | 8:00 /km | +8h31 |
| 450 | 23h29 | 8:45 /km | +6h31 |
| 400back of the pack | 25h40 | 9:34 /km | +4h20 |
| 350 | 28h04 | 10:27 /km | +1h56 |
| 300 | 30h40 | 11:26 /km | 0h40 past the cutoff |
The 30h00 cutoff sits at about Index 312. The typical winning time, 12h10, sits at about Index 819. At the 2025 edition, the median of the 492 finishers took 25h15, about Index 409. A model estimate, not an official ITRA or UTMB figure.
From a result you already have
What the predictor gives on Javelina Jundred for a few common reference results.
| Road marathon | 3h00 → 18h55 | 3h30 → 22h04 | 4h00 → 25h13 | 4h30 → 28h22 |
|---|---|---|---|---|
| 50 km trail, 2,000 m D+ | 5h30 → 15h51 | 6h30 → 18h44 | 7h30 → 21h36 | 8h30 → 24h28 |
Road marathons use the tool's rougher power-law fallback.
For arrival times at each checkpoint, use the Javelina Jundred aid station planner.
Javelina Jundred course in numbers
- Climbing per km
- 12 m
- ITRA km-effort
- 180 (100M)
- Highest point
- 738 m
- Biggest climb
- +191 m over 7.3 km at 2.5% (from Coyote Camp (loop 2))
- Longest descent
- -275 m over 14.7 km at 1.7% (Jackass Junction (loop 4) to Javelina Jeadquarters (end of loop 4))
- Track climbing above 3%
- 13%
- Winning time / cutoff
- 12h10 / 30h00 (2.5x the winner's time)
Section-by-section climbs, descents and grades are on the Javelina Jundred course page.
Predict your Javelina Jundred finish time from a reference race result, adjusted for the course's 161 km and roughly 1,919 m of elevation gain. The overall cutoff is 30h.
About Javelina Jundred - 100 Mile
Javelina Jundred - 100 Mile covers 161 km (about 100 miles) with around 1,919 m of elevation gain, starting in McDowell Mountain Regional Park, Arizona, USA. The overall cutoff is 30 hours.
Crew access is allowed at Javelina Jeadquarters (end of loop 1) (35.9 km), Javelina Jeadquarters (end of loop 2) (67.1 km), Javelina Jeadquarters (end of loop 3) (98.3 km) and Javelina Jeadquarters (end of loop 4) (129.6 km). Drop bags are available at Jackass Junction (loop 1), Javelina Jeadquarters (end of loop 1), Jackass Junction (loop 2), Javelina Jeadquarters (end of loop 2), Jackass Junction (loop 3), Javelina Jeadquarters (end of loop 3), Jackass Junction (loop 4), Javelina Jeadquarters (end of loop 4) and Jackass Junction (loop 5).
Checkpoint data approximate - verify against the current official race guide at aravaiparunning.com before your race.
How the prediction works
Your result becomes a UTMB Index, mapped onto Javelina Jundred by the calibrated model behind the ITRA / UTMB Index Estimator. Full methodology.
Build a training plan targeted at your Javelina Jundred goal time
TrailMath uses these models to build periodized plans adjusted to your goals and terrain.
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