Comrades Marathon (Down Route)

This edition is listed as 90.7 km in Pietermaritzburg, South Africa.

Typical race-morning air at Comrades Marathon (Down Route) averages 13°C across the last 10 years (about 4°C to 27°C in that window). The morning can still warm as you run. The stickiest morning in that set was 2025, WBGT around 14°C. 2025 was the windiest, around 11 km/h. Use that range for planning, not as a promise for race day.

2025 (8 Jun 2025) was the hottest Comrades Marathon (Down Route) morning in that set, WBGT around 14°C. Treat that year as the spike, not as the usual morning.

2025 (8 Jun 2025) was the windiest Comrades Marathon (Down Route) morning in that set, around 11 km/h. Wind still changes what the same pace costs. Treat that year as the spike, not as the usual morning.

Inside about 14 days, use the live forecast on this page. Further out, use race morning history: it averages 13°C. Treat last year's day as a warning if it was an outlier, not as a forecast.

Heat, humidity, wind or a lumpier day than you hoped all raise the chance of a late fade. If the start feels easy, don't spend it. Back off early, and hold even effort even if that means slower than the A-goal. The preview on this page is the starting point. Full personalised splits sit in Race Pass or Pro.

About 1276 m of climbing and 1920 m of descent. Hilly. Net downhill. 41% sits within 2%. About 15% of the course is steeper than 6%. 33 climbs. 8 of those are steeper than 6%.

It is an estimate of how the course and conditions could move your baseline. Your body still decides the rest: heat adaptation, fuelling, prep, mindset, how you race, and whether you can draft.

The free page covers conditions, course context and a finish preview. Full personalised pacing and weather-adjusted splits sit in Race Pass or Pro.