Mountain Ultra Trail by UTMB 2026
Mountain Ultra Trail by UTMB (100K)
George
Race guide
Updated 1 July 2026
The Mountain Ultra Trail by UTMB 100K on the George route is a full-day mountain test: 100 km with 4,237 m of climbing, starting and finishing at Outeniqua Stadium in George at 238 m and topping out at 986 m along the way. There's a single cut-off that matters — the finish, back in George, with a Day 06:00 deadline — which means the whole route is really one long puzzle of pacing, climbing efficiency and heat management rather than a string of individual checkpoint battles.
The course and terrain
This is a point-to-point-feeling loop that starts and finishes at the same elevation (238 m) in George but spends the day working its way up to a high point of 986 m and back down, repeatedly, to accumulate 4,237 m of climb over 100 km. That's an average gradient load of over 42 m of climbing per kilometre, which tells you this isn't a runnable, flowing 100K — it's a course built from sustained climbs and technical descents strung together, with very little genuinely flat ground to hide on. Treat the whole route as mountainous rather than looking for one signature climb; the elevation is spread across the distance, so the terrain never fully lets you settle into a rhythm for long.
Where the race is actually decided
With no intermediate cut-offs on record — just the finish deadline of Day 06:00 — the tactical trap on a course like this is treating the early, easier-feeling kilometres as free time. They aren't. The opening sections of a 4,237 m, 100 km route always feel more generous than they are, and runners who push that early advantage tend to pay for it in the back half once the cumulative climbing and the day's heat start compounding. The race is won in how you handle the accumulated fatigue after the first several hours, not in how fast you move early on — the back third of a course like this, once legs are tired and the sun has been up for a while, is where places are made or lost.
Pacing and fueling the George 100K
Given a single finish cut-off of Day 06:00 and no reported checkpoint deadlines to chase along the way, the smart play is to run this conservatively for as long as it takes to bank a margin, then spend that margin late. A patient, even deliberately social first half — resisting the urge to 'make time' while it feels easy — is what funds a strong closing stretch on a route this climb-heavy; going out hard early on 4,237 m of vert is the classic way to blow up well before George comes back into view. Break the effort into manageable chunks rather than thinking about the whole 100 km at once — mentally banking sections ('two more climbs and I'm close') keeps the load feeling managed rather than overwhelming, and matches how this course actually unfolds: relentless small gains in elevation rather than one defining wall.
Conditions to expect
Starting and finishing at 238 m but climbing to a high point of 986 m means real variation in temperature and exposure across the route — expect it to run warmer down at George's elevation and noticeably cooler and more exposed up near the high point. Because the only hard deadline is the finish cut-off at Day 06:00, plan your effort and fueling around covering the full distance and climb rather than racing against intermediate splits, and build in the buffer to manage heat on the return legs into George rather than arriving depleted with the clock still working against you.
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Checkpoints & cut-offs
✓ Course data verified against the official source (2026-07-05) · official source
0 km · 238 m · —
15 km · 740 m · Sat 08:30
32.2 km · 656 m · Sat 12:45
43.4 km · 674 m · Sat 15:30
58.2 km · 228 m · Sat 18:30
73 km · 217 m · Sat 22:00
85.8 km · 675 m · Sun 02:00
98.5 km · 250 m · —
100.5 km · 238 m · Sun 06:00
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