Race Calculators
Choose your target race for specialized pace calculations and course strategies
Major Marathon Calculators
Select a race to get personalized pace bands and elevation strategies
🗽
NYC Marathon
NYC
hard
5 bridges
Nov
🎓
Boston Marathon
Boston
hard
Heartbreak Hill
Apr
🌆
Chicago Marathon
Chicago
easy
Fast & flat
Oct
🇬🇧
London Marathon
London
moderate
Tower Bridge
Apr
🗾
Tokyo Marathon
Tokyo
moderate
Urban scenery
Mar
🇩🇪
Berlin Marathon
Berlin
easy
World record
Sep
🏛️
Barcelona Marathon
Barcelona
moderate
Mediterranean
Mar