The Mossel Bay Half: Three Laps, Almost No Flat, and a Cutoff at 13.5 km

Forget the flat half marathon

The Mossel Bay run is 21.1 km over three laps, a mix of road and pedestrian paths, with views over the bay. Listed elevation gain varies by source between 261 and 365 m: not a huge number on paper, but it comes after a bike with ~1,000 m of climbing and it's packed into constant rollers. Several race reports describe it as hilly for most of the course — one athlete calls it "80% hills" — and rank it among the toughest runs on the 70.3 circuit. If you show up here with your flat half marathon time in your head, you're racing the wrong race.

Course layout and aid stations

Three laps mean three things: you see the finish line three times before you're allowed in, you pass the crowds often (race reports mention strong support along the course), and you can break the effort down mentally. There are three aid stations per lap: use them as micro-goals. Running "aid station to aid station" is a real strategy, not a motivational trick — on a rolling course your per-km pace will fluctuate anyway, so you might as well anchor to physical landmarks.

The cutoff that matters: the George Road 2 turnaround, at the 13.5 km mark, must be passed by 2:55 pm (2024 data, check the 2026 athlete guide). The finish line closes 8h30 total from your start. If you're a back-of-pack finisher, 13.5 km is the number to keep in mind, not the finish line.

Heat: moderate but real

In late November, highs hover around 28°C. It's not an extreme race, but the run falls in the middle of the day and the rollers push up cardiac cost. Plan your hydration from the bike, not from the first run aid station: if you come off the bike already in deficit, three laps get very long. Water and ice at the aid stations, salt per your routine already tested in training. No experiments on race day.

Pacing: start slower than you think

On this course a negative split isn't an ambition, it's a necessity. Practical plan:

• Lap one: controlled pace, 10-15 sec/km slower than your average goal pace. Learn where the climbs are and where you can recover.
• Lap two: settle into goal pace. This is the lap where the race is decided.
• Lap three: spend whatever's left, knowing exactly what's coming.

On the climbs, shorten your stride and accept losing seconds; you get them back on the descents with a smooth stride, no braking. If you're in the finisher bracket, walking the steepest climbs is a legitimate strategy — but do the math on the 2:55 pm cutoff beforehand, not mid-race.

How to train for it

In the final 2-3 months, add specific work: long runs on rolling terrain, hill repeats of 2-4 minutes, and above all downhill running at race pace — trashed quads on lap three almost always come from untrained descents, not the climbs. The key test: a brick with a long hilly bike and 50-60 minutes of running on rollers. If the test holds up, lap three will hold up.

The decision to make

Set two paces before the race: a "good day" pace and a "bad day" pace (headwind on the bike, hotter than expected). Decide at km 3 of the run which one you're running, and don't change your mind halfway through lap two. Over three hilly laps, the typical mistake isn't starting too slow: it's starting at the flat half marathon pace you brought from home.