RacesFilter

Flat marathons

A flat marathon here means a road course and trusted gain of 5 metres per kilometre or less. If the stored climb is marked uncertain, or there is no gain figure, the race is not on this list.

How the difficulty and PR scores are built

Valencia Marathon Trinidad AlfonsoDecember 2026Valencia · ES
RunningMarathon

Valencia Marathon

Difficulty 18 · PR 80

Sold out · LotteryRace guide →
Hawaiʻi Bird Conservation MarathonDecember 2026Volcano to Keaʻau · US
RunningMarathon

Bird Conservation Marathon

Difficulty 30 · PR 80

Open · Direct entryRace guide →
adidas Stockholm MarathonMay 2027Stockholm · SE
RunningMarathon

Stockholm Marathon

Difficulty 25 · PR 66

Sold out · Direct entryRace guide →