Kodiak by UTMB - 100 Mile

Kodiak 100M Finish Time Predictor

Kodiak 100M race stats pre-loaded (162 km, 4,850 m D+). Enter a known race result to get an elevation-adjusted finish time estimate.

162km4,850m D+Winner: ~16h42Cutoff: 36h

Full Kodiak by UTMB - 100 Mile course data: aid stations, cutoffs, course profile

1. Your race

Kodiak 100M

162 km · 4850 m D+ · 5365 m D-

Different race?

Have the GPX? Measure the exact course in the GPX Explorer

2. How should we estimate you?

From my Strava historyYour last 90 days of real training. Opens the TrailMath app.Read-only access to your activities. Nothing is posted to Strava, and no training plan is created until you ask for one.

Distance (km)

Elevation gain (m)

Elevation loss (m)

Same as gain. Edit if different.

Finish time

Hours, or h:mm

3. Your predicted finish

210.5 km-effort (ITRA, gain only)237.3 km-effort

Add a past race or your index to get a finish time.

Kodiak 100M finish times by UTMB Index

Predicted finish on the Kodiak 100M course (162.0 km, 4,850 m D+) for each UTMB Index, with the margin to the 36h00 cutoff.

Kodiak 100M: predicted finish time by UTMB Index
UTMB Index	Predicted finish	Average pace	Margin to cutoff
850	14h57	5:32 /km	+21h03
800	16h20	6:03 /km	+19h40
750	17h52	6:37 /km	+18h08
700competitive	19h31	7:14 /km	+16h29
650	21h20	7:54 /km	+14h40
600	23h20	8:38 /km	+12h40
550	25h30	9:27 /km	+10h30
500mid-pack	27h52	10:19 /km	+8h08
450	30h28	11:17 /km	+5h32
400back of the pack	33h18	12:20 /km	+2h42
350	36h24	13:29 /km	0h24 past the cutoff
300	39h48	14:44 /km	3h48 past the cutoff

The 36h00 cutoff sits at about Index 356. The typical winning time, 16h42, sits at about Index 788. A model estimate, not an official ITRA or UTMB figure.

From a result you already have

What the predictor gives on Kodiak 100M for a few common reference results.

Kodiak 100M: predicted finish from reference results
Road marathon	3h00 → 24h52	3h30 → 29h01	4h00 → 33h10	4h30 → 37h18
50 km trail, 2,000 m D+	5h30 → 20h34	6h30 → 24h18	7h30 → 28h01	8h30 → 31h45

Road marathons use the tool's rougher power-law fallback.

For arrival times at each checkpoint, use the Kodiak 100M aid station planner.

Kodiak 100M course in numbers

Climbing per km: 30 m
ITRA km-effort: 211 (100M)
Highest point: 3,047 m
Biggest climb: +874 m over 17.0 km at 4.1% (through Camp Whittle)
Steepest climb: +204 m over 1.1 km at 17.3%
Longest descent: -611 m over 12.3 km at 3.4% (down to Big Bear Lake Village (Finish))
Track climbing above 3%: 33%
Winning time / cutoff: 16h42 / 36h00 (2.2x the winner's time)

Section-by-section climbs, descents and grades are on the Kodiak 100M course page.

Predict your Kodiak 100M finish time from a reference race result, adjusted for the course's 162 km and roughly 4,850 m of elevation gain. The overall cutoff is 36h.

About Kodiak by UTMB - 100 Mile

Kodiak by UTMB - 100 Mile covers 162 km (about 101 miles) with around 4,850 m of elevation gain, starting in Big Bear Lake, California, USA. The overall cutoff is 36 hours.

Crew access is allowed at Doble Camp 1 (48.8 km), Cactus Flats (77.1 km), Doble Camp 2 (83.5 km), Sugarloaf 1 (105.1 km), Sugarloaf 2 (128.2 km), Bear Mountain (137.9 km) and Snow Summit (146.4 km). Drop bags are available at Camp Whittle, Doble Camp 1, Doble Camp 2, Sugarloaf 1 and Sugarloaf 2.

Checkpoint data approximate - verify against the current official race guide at kodiak.utmb.world before your race.

How the prediction works

Your result becomes a UTMB Index, mapped onto Kodiak 100M by the calibrated model behind the ITRA / UTMB Index Estimator. Full methodology.

Build a training plan targeted at your Kodiak 100M goal time

TrailMath uses these models to build periodized plans adjusted to your goals and terrain.

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