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A lone runner on a long straight road under a rainbow

Guide

How hard is a triathlon course? Reading it without an elevation figure

Only 202 of 354 races have a bike elevation figure. For the others, read the course labels, the air temperature and the course description.

A triathlete holding her bike above her head, standing in the sea

Elevation

The figures that exist

Elevation is the figure most people look for first. It exists for 202 bike courses. Ten of them, chosen to show the range up to about 1,200 m:

Runners on a park path during the run leg

Labels

What the labels say about those figures

Set against those figures, the labels overlap. A course labelled flat can have more climbing than one labelled rolling, because the label describes the character of the course and the figure its total. A long course with gentle gradients can add up to more metres than a short one with a single steep climb.

The labels remain useful at the ends of the scale. Hilly on both the bike and the run is rare, with 41 races on the calendar, and it describes courses where climbing shapes the whole day. Extreme triathlons sit beyond that end of the scale: the extreme triathlon guide sets out how much they climb.

The other half of difficulty

Heat changes a race as much as climbing does. 330 of the 354 races on this site have an average high air temperature for race day, from 11 °C to 38 °C, and the race pages show where each race ranks on it among races of the same distance.

Cut-offs decide whether a hard day ends with a finish. Check them in the athlete guide of each race.

Side by side

Compare courses with an elevation figure

These three have a bike elevation figure. The table shows how label and figure line up.

IRONMAN 70.3 Eagleman

IRONMAN Calella-Barcelona

IRONMAN 70.3 Vilamoura-Algarve

  1. Race 1 IRONMAN 70.3 Eagleman
  2. Race 2 IRONMAN Calella-Barcelona
  3. Race 3 IRONMAN 70.3 Vilamoura-Algarve
Circuit
IRONMANIRONMANIRONMAN
Distance
Middle distanceFull distanceMiddle distance
Terrain
RoadRoadRoad
Swim
1.9 km3.8 km1.9 km
Bike
90 km180 km90 km
Run
21.1 km42.2 km21.1 km
Date
13 Jun 20273 Oct 20273 Apr 2027
Country
United StatesSpainPortugal
Registration
OpenSold outSold out
Swim venue
RiverOceanOcean
Average water temperature
24 °C22 °C16 °C
High air temperature
30 °C25 °C19 °C
Low air temperature
20 °C12 °C13 °C
Bike profile
FlatFlatHilly
Bike elevation gain
101 m750 m1,169 m
Run profile
FlatFlatFlat
Run elevation gain
45 mn/a8 m
Overall cut-off
8 h 30 min16 h 20 minn/a
Altitude
1 m15 m18 m
First edition
198120092027
Swim start
Rolling startRolling startRolling start
Entry fee, from
$460n/a€541

Questions

Which course has the most climbing?

Embrunman, ICON Livigno Xtreme Triathlon, with 5000 m on the bike. Among IRONMAN races, the highest figure is 2574 m, at IRONMAN Leeds.

Filter on the labels, then read the figures

The finder filters on course labels. Each race page gives the figure when one exists.

A triathlete changing at his bike in transition