Science-backed training, built around your race
Train Smarter.Run Your Best Half
Tell us your race date, your schedule, and your goal. You’ll get a week-by-week training plan—built on proven running science—that adapts as you log your runs.
8–16 Weeks
plan options
VDOT Pacing
science-backed
100% Free
no credit card
Everything You Need
Built for Runners
Everything from your first shakeout run to crossing the finish line, designed to make every week count.
Race-Calibrated Structure
A week-by-week schedule built around your actual race date. Base, build, peak, and taper phases laid out automatically—so your fitness peaks exactly when it counts.
Progress at a Glance
Charts showing weekly mileage, pace trends, and how your actual runs compare to the plan. Spot momentum—or a slump—before it becomes a problem.
Paced to Your Goal
Enter your target finish time and we calculate your training paces—easy runs, tempo, long runs—using the same VDOT method elite coaches rely on.
Speed Work, Dialed In
Structured interval sessions with exact rep counts, target paces, and recovery windows—so you know precisely what to run and why.
Built for Real Life
Swap training days, shift workouts, and reshape your plan around your week. Your training bends to your schedule, not the other way around.
Built for Race Day
Race week tapering, pacing guidance, and a visual countdown keep you sharp and fresh when it matters most.
Week 6 of 12
32 km planned this week
78%
on track
Smart Planning
A Plan That Works
Our 12-week training plan is built on proven methodology used by professional coaches. Each week progressively builds your fitness with the perfect mix of easy runs, tempo workouts, long runs, and recovery days.
- Progressive distance building
- Variety of workout types
- Built-in recovery weeks
- Taper phase for race day
Visual Progress
See Your Growth
Beautiful charts and statistics that make tracking your progress motivating. Watch your weekly distance climb, your pace improve, and your fitness transform over the 12 weeks.
156
km this month
5:42
avg pace /km
finish time
1:52:34
Race Day Ready
Cross That Finish Line
Our countdown keeps you motivated, the taper phase ensures you arrive rested, and our race day checklist makes sure you do not forget anything. You have trained hard. Now go make it count.
days until race
23
NYC Half Marathon
March 15th, 2026
Free Training Plans
Science-Backed Programs
27 training plans from 8 to 16 weeks, with VDOT-based pacing and day-by-day workouts. Pick one or build your own.
Find Your Next Race
Upcoming Half Marathons
Pick a race, and we'll build a training plan that peaks on race day.
Pittsburgh Half Marathon
OC Half Marathon
Brooklyn Half Marathon
San Francisco Half Marathon
Chicago Half Marathon
Wine & Dine Half Marathon
The Start Line Won’t Wait.
Build your training plan in under 2 minutes. Personalized to your race date, fitness level, and schedule—and updated week by week as you run.
Free forever. No credit card needed.