A fully periodized plan that rebuilds around real life, with PACE, your coach built in, and the analytics serious runners expect. For marathoners, half PRs, and Boston qualifiers.
No credit card required · 7-day free trial · iOS, Android & Web





A fully periodized plan that reacts to how your training is actually going, not a static PDF you fall behind on.
Miss a long run, travel, or get sick? Your plan rebuilds around it. No starting over.
Your paces recalculate after every run, so the plan always matches your current fitness.
Every workout has a clear purpose, not a vague pace range. Easy days stay easy.
Designed for runners who demand more from their training. Every feature built around the science of getting faster.
Your paces adjust automatically based on how workouts feel. No more guessing - your plan evolves with your fitness.
From 800m to the marathon. Pick your race, set your goal time, and get a periodized plan built to peak on race day.
Deep performance analytics that track trends across every run. See your progression and get actionable insights.
Sends your next 7 workouts directly to Garmin, Apple Watch, COROS, or Wahoo. Completed runs sync back and update your plan.
Intervals, tempo runs, progressions - all structured step by step with target paces displayed right on your watch.
Full web app you can access from any browser - plus native iOS and Android apps. Most running apps are mobile-only. NXT RUN goes wherever you do.
Not everything for everyone. No cycling, no swimming, no generic fitness, just the most focused training platform for runners chasing a real goal.

PACE does what a coach does, not just chat. It reschedules your week when life gets in the way, recalculates your paces, builds race-specific workouts on request, reviews your completed runs with real feedback, and answers your training questions in plain language.
Powered by advanced models.
See exactly what to run before you step out the door. Every interval, every recovery, every target pace - built into structured workouts that push to your watch automatically.
Analytics that respect how seriously you train. Grade-adjusted pace, training load, and fitness trend, plus a race predictor from 5K to marathon and best efforts with trophies across all-time, year, and plan.
Already self-coached? Use NXT RUN as your platform without a generated plan. Log your runs, analyze them deeply, and get daily guidance on the training you are already doing. You stay in control.


















Not just a phone app. NXT RUN's full web experience gives you a panoramic view of your training. Schedule weeks at a glance, dive deep into analytics, and chat with PACE, your coach, on the big screen.
See your entire training block at a glance. Plan, swap, and adjust workouts across weeks without scrolling.
Chat with PACE on a full display. Review detailed analyses, pace breakdowns, and training insights with room to read.
Pace zones, fitness scores, training load, best efforts - all the data you want, visualized for the big screen.
NXT RUN was built in Boulder, Colorado by Brandon White, TrainingPeaks' first mobile developer, who spent 12 years building the iOS and Android running apps serious runners train with. He is a 14:40 5K runner and a coach. The proof: his wife Aubrie ran a 2:59 marathon, sub-3 on a tough course, using an early version of NXT RUN and his coaching.
Annual NXT RUN Pro subscribers who qualify for the Boston Marathon while training with the app get $120 back toward their entry fee. We put our money where our coaching is.
Free, no-signup tools backed by peer-reviewed sport science. Made by the same team that builds NXT RUN.
Drop in any race time and instantly get equivalent times for every common distance from 800m to the marathon, plus your full set of training paces - easy, steady, marathon, threshold, interval, and repeat. Same Daniels' VDOT engine that runs in the NXT RUN app.
Calculate my pacesSee your odds of making the 2027 Boston Marathon cutoff. Uses historical BAA data, the 2027 tightened standards, and the new downhill course adjustment to give you a real probability, not just a yes or no.
Check your oddsConvert your outdoor pace into the exact treadmill pace that matches your effort, personalized by your height, weight, and incline. Backed by the ACSM metabolic equation and Pugh aerodynamic drag research. Supports mph, kph, min/mi, and min/km.
Convert my paceConvert race times between altitude and sea level using the Peronnet-Thibault model. Accounts for distance, elevation, and acclimatization - so a 3:00 marathon in Boulder means what you think it means. Backed by peer-reviewed altitude physiology research.
Convert my time"Dropped 8 minutes off my marathon time in one training cycle. The adaptive pacing caught exactly when I was ready to push harder. Nothing else does this."
"I've used TrainingPeaks, Runna, and Garmin Coach. NXT RUN is the first one that actually adjusts my plan based on how runs feel, not just what the calendar says."
"PACE is legit. I asked it about my race pacing strategy and it gave me a mile-by-mile breakdown better than any coach I've worked with."
Start with a free trial. Upgrade when you're ready to unlock full PACE adaptive coaching.
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NXT RUN is built around true adaptive training. Unlike static plans, your paces and training load adjust based on how workouts actually feel. PACE, your coach built in, provides real coaching intelligence - not just a schedule generator. And your workouts push directly to your watch with full structure.
NXT RUN supports distances from 800m through the marathon, including 5K, 10K, half marathon, and marathon. Plans are periodized specifically for your target race date and goal time, with appropriate base building, peak phases, and taper.
NXT RUN is available on iOS, Android, and as a full web app you can access from any browser - most running apps don't offer that. It syncs with Garmin, Apple Watch, COROS, Wahoo, and Strava, automatically sending your next 7 planned workouts to your device and syncing completed runs back in real time.
The BQ Bonus is exclusive to annual NXT RUN Pro subscribers. If you qualify for the Boston Marathon while training with the app, you receive $120 toward your Boston Marathon entry fee. It's our way of investing in your success.
Absolutely. You can swap workout days, adjust weekly volume, and the plan intelligently rebuilds around your real-life schedule. Missed a workout? NXT RUN adapts - no guilt, no wasted training.

Join thousands of runners who stopped guessing and started training with a coach that adapts to them.
No credit card required · 7-day free trial · Available on iOS, Android & Web