Race Time Predictor
Riegel: T₂ = T₁ × (D₂/D₁)^1.06.
Educational only - not medical advice. Consult a qualified professional before changing exercise, diet, caffeine, pregnancy, or health routines.
About this tool
Race Time Predictor is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Fitness & Health — Personal. Browse more Fitness & Health — Personal tools.