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Triathlon Atlas

Half distance · 22 November 2026

IRONMAN 70.3 Mossel Bay

Mossel Bay, South Africa

The race at a glance

Official race website
Circuit
IRONMAN
Distance
Middle distance
Terrain
Road
Swim
1.9 km
Bike
90 km
Run
21.1 km
Date
22 Nov 2026
Registration
Sold out
Swim venue
Bay
Average water temperature
21 °C
Bike profile
Hilly
Bike elevation gain
1,020 m
Run profile
Rolling
Run elevation gain
365 m
High air temperature
28 °C
Low air temperature
14 °C
Overall cut-off
8 h 30 min
Altitude
43 m
First edition
2022
Swim start
Rolling start

Edition history

202516 Nov 2025Held
202417 Nov 2024Held
202319 Nov 2023Held
20226 Nov 2022Held

How the day is laid out

The swim is held in a bay. The wetsuit call is made on race morning, against the temperature measured then.

The organiser publishes 1.9 km of swimming, 90 km on the bike and 21.1 km of running.

The swim uses a rolling start: athletes enter the water a few at a time. The water is usually around 21 °C at this time of year.

The bike course is hilly, with about 1,020 m of climbing.

The run course is rolling, with about 365 m of climbing.

Typical temperatures for the month run from 14 to 28 °C. The overall cut-off is 8 h 30 min.

The race was first held in 2022.

From Santos Beach to the Herbertsdale road

The swim starts on Santos Beach and finishes at De Bakke Beach, where athletes run about 75 m up the beach, a ramp and a staircase to transition. The bike is a single out-and-back to Uitkyk on the Herbertsdale road, rated hilly by ironman.com, with three aid stations. The run is three laps through the harbour, the old town and the Point coastal walkway, on road and path. The water was measured at 22 °C in 2023, 19 °C in 2024 and 20 °C in 2025. The town also hosts the full distance, IRONMAN South Africa, in April 2027.

Source: ironman.com, read on 28 October 2026. The other South African races: IRONMAN in South Africa.

Against the calendar

Where this race sits among the others

Ranks are computed across every race of the same distance.

  • Average water temperature

    21 °C · median 21 °C

    The 58th coldest of the 128 middle-distance races with a figure, across every circuit.

  • High air temperature

    28 °C · median 25 °C

    The 50th hottest of the 152 middle-distance races with a figure, across every circuit.

  • Bike elevation gain

    1020 m · median 569 m

    The 16th hilliest of the 105 middle-distance races with a figure, across every circuit.

13

races of this distance pair a hilly bike with a rolling run, out of 159. 29 share the bike profile alone.

34

races across every distance fall in November, out of 354.

6

races are held in Africa. 1 of them in the same month as this one.

Questions about this race

When is IRONMAN 70.3 Mossel Bay 2026?
IRONMAN 70.3 Mossel Bay is held on 22 November 2026 in Mossel Bay, South Africa. The race is sold out.
Is a wetsuit allowed at IRONMAN 70.3 Mossel Bay?
Most likely. The average water temperature is 21 °C, below the 24.5 °C limit up to which wetsuits are allowed for age-group athletes. The official call is made on race morning.
What is the cut-off at IRONMAN 70.3 Mossel Bay?
The course closes 8 h 30 min after the start. Intermediate cut-offs after the swim and the bike are in the athlete guide.
How hard is IRONMAN 70.3 Mossel Bay?
The bike course climbs about 1020 m, the 16th hilliest of 105 half-distance races with a figure. The bike is labelled hilly and the run rolling. Expect highs of about 28 °C on race day.

Where to stay

Hotels and rentals around the race venue, for the nights around race day.

Suggested stay: 20 Nov 2026 to 23 Nov 2026

The map is provided by Stay22. Bookings are made with the provider.

Races of the same distance in the same region

Entries are handled by the organiser

Registration and the athlete guide are on the official race page.

Open the official race page