← Tools
Mid-Race Finish Estimator
Already running? Enter how far you've gone and your elapsed time to project your finish.
DISTANCE UNIT
ELAPSED TIME
hours
minutes
seconds
Enter a distance to see the result.
Even effort holds your current pace to the finish. Riegel scales your elapsed time to the full distance with T₂ = T₁ × (D₂/D₁)^1.06 (Riegel, American Scientist, 1981), which allows for late-race slowing.