Race Predictor — training paces from your last race

My Runs — weekly mileage and personal bests

Every tool you need to run your best race.

Race predictor, training paces and daily readiness check-in — built around the methodology of 2× Olympian Kathy Butler.

Download on the App Store

Free · No account needed · iPhone only

Ready to Run

Train with awareness, not just effort.

Rate your sleep, fatigue, soreness, stress and motivation before you train. Over time you'll see the patterns that predict your best and worst workouts.

Four readiness categories
History chart — 7, 30, 90 days or up to 12 months
Flags low-readiness days before you overtrain
Share your readiness score

Run Log

Every mile, tracked and charted.

Log every run and watch your progress build over weeks. See your weekly mileage, pace trends and personal bests at a glance.

Weekly mileage chart with PB markers
Personal bests across all distances
Export & import your data as CSV

Race Predictor

Know your goal pace before you line up.

Enter any recent finish time and instantly see predicted finish times for every distance from 1 mile to marathon — plus all four training zones from your current fitness.

VDOT-based predictions
Easy, Tempo, Threshold & VO₂ Max pace ranges
Miles or kilometres, your choice
Goal race planner built in

Kathy Butler

Coached by a 2× Olympian.

Every feature in Ready to Run reflects Kathy's real coaching methodology — the same approach she uses with her personal athletes.

26+

Years coaching distance runners

2×

Olympian (Atlanta 1996 & Athens 2004)

USATF

Certified running coach

Work With Kathy

The app is free.
Custom coaching isn't.

When you're ready for a fully personalised plan, weekly check-ins and direct access to Kathy, 1-on-1 coaching is where real transformation happens. From first-timers to ultramarathoners.

Book a free 15-min call →

Runners Say

Results that speak for themselves.

"Kathy has transformed my running over the past three years. I ran a trail marathon, a 55K, a 50 miler, and ultimately the Leadville 100."

— Ali Hummelberg, Leadville 100 finisher

"Kathy has been with me every step of the way along my triathlon career — from amateur to pro."

— Sam Teller, Amateur to Pro Triathlete

Available Now

Download on the App Store.

Free. No subscription, no account, no catch.