Your race. Your schedule. Your plan.
Personalized running plans that progress safely, set your paces from real running science, and fit the schedule you actually run.
- Progressive mileage that respects the 10% rule
- Step-back weeks built into every plan
- Paces calculated from your race history
Free, with no account needed. Your plan is a link you can share.
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Boston Qualifier Calculator
Your Boston standard, the buffer recent cutoffs demanded, and what the new net-downhill rule does to your target.
Open tool →Training Pace Calculator
Turn a recent race into your easy, marathon, threshold, interval, and repetition paces (VDOT-based).
Open tool →Race Time Predictor
Predict your 5K, 10K, half, and marathon times from one recent result using Riegel’s formula.
Open tool →Fitness Forecast
Project the race times you could run after a training block, grounded in real VDOT-improvement research.
Open tool →Pace Converter
Convert between min/mile, min/km, mph, and kph, and see finish times at any pace.
Open tool →Fueling Calculator
Build a race fueling plan: carbs per hour, gels to carry, fluid and sodium targets, and timing.
Open tool →See a real plan
These are real plans generated by Stride, previewed live. Open one to explore the full week-by-week schedule.
10% rule progression · step-back weeks · paces from your race history
Chasing a Boston qualifier?
The 2027 standards changed, and a new rule now adds time to qualifying results from steeply downhill courses. We checked every race in our guides against it.
Learn the why behind the training
Plain-English guides to how training actually works. The physiology ones cite their sources, so you can check the claims rather than take our word for them.
Anatomy of a Running Plan
How a training cycle is built: phases, easy versus quality days, pace zones, every workout type, and the safety rules behind them.
Why Rest Days Matter
You don’t get faster during the hard run. You get faster recovering from it.
Read the guide →What Is VO2max, and How Do You Raise It?
Your aerobic ceiling — what sets it, and the training that lifts it.
Read the guide →Why Easy Runs Should Be Easy
The hard part of easy running is keeping it easy.
Read the guide →