Better isn't only faster. It's healthier, more in tune with your own body, and still enjoying the run years from now — because the runners who keep going are the ones who run well. Paceriz does the math. It doesn't do the feeling: every call comes with its reason, so you understand yourself a little more each week.
Delete it if you don't like it · No credit card
“How fast am I actually supposed to run?”
Easy runs, tempo runs, intervals, long runs — every pace and heart-rate zone is computed from your VDOT. Run a better result and your VDOT recalculates automatically, so the plans that follow get faster with you.
One VDOT recalculation, and every workout's pace moves with it
“Add mileage, or back off?”
Weekly mileage increases are capped, and the cap tightens the closer you get to your peak phase. From a feels-like temperature of 27°C, pace targets loosen automatically. Race week tapers on its own, and recovery is scheduled after the race.
The program can't lift these caps by itself
“Three days of travel this week — my plan's a mess”
Tell Rizo once and it reschedules the whole week for you to look at; nothing takes effect until you say yes. After the weekend review, whether next week follows the suggestions is your call too, one line at a time.
We ask you before we change anything
“Am I actually getting stronger?”
Capability, aerobic endurance, speed endurance and recovery in one view. Each one is marked clearly stronger, typical, or worth watching — plus your goal time next to your current projected finish.
Every one of them can tell you where the verdict came from
runners are getting stronger at their own pace.
These are real runner stories. One case does not guarantee results, but it shows how Paceriz helps runners make weekly training decisions.
One runner completed a 12-week Paceriz half marathon plan and finished the last week with the rest and validation run the plan called for. The point isn't a guaranteed prediction — it's that the plan told him when to train and when to rest.
Read the full training log →Paceriz customizes the plan around each runner's fitness and race schedule, then adjusts it every week. It's like having a personal coach running alongside me, and I finally finished the Pocari Sweat Run.
I love Paceriz's dynamic VDOT feature — it shows me exactly where my training stands. I used to be unsure how fast to run; now the science-based pace guidance gives me confidence in every session.
Paceriz's training review lets me see my progress over time. The weekly analysis is detailed — heart rate recovery, pace consistency — and it makes training much more rewarding.
Paceriz decides this week's most important training stimulus first, then builds the rest of the week around it. You just run — what you actually complete becomes the basis for next week's adjustment.
Your recent training, recovery, and goal decide which session matters most this week.
The plan syncs to Garmin. Just do what's scheduled for the day.
What you actually complete updates your training progress, and the weekly review decides how next week is arranged.
How you run this week directly decides how you train next week.
Not sure? Start with the default, Paceriz Balanced Training. Once you pick one, it drives your season phases and each week's session types and intensity mix. You can switch anytime.
You have a goal race and want a time
Base, build, peak, and taper, in order — roughly 75% easy, 20% moderate, 5% hard. Works for 5K through the marathon, from 6 weeks up, beginner to advanced.
80% low intensity plus 20% high intensity, deliberately skipping the middle — easy days truly easy, hard days truly hard. From 8 weeks up; best once you already have a training base.
Trains you on tired legs through cumulative fatigue. The long run is actually shorter (25 km max), but weekly mileage is higher, with three quality sessions a week. Half and full marathon only, from 12 weeks up, and at least five running days a week.
Built on sub-threshold intervals with single-threshold days, accumulating quality volume steadily instead of relying on high-lactate all-out intervals. From 10 weeks up.
You just want to finish — time doesn't matter yet
For people who barely run, or can't jog 20 minutes straight. Run-walk progressions, no hard sessions at all, and a 5K validation run in the final week. From 4 weeks up.
For people who already run three times a week and can jog 25 to 30 minutes straight. Again no speed work, with a 10K validation run in the final week. From 8 weeks up.
No race — off-season, or building something up
For the recovery stretch after a race or a gap between races. Maintains and lifts your aerobic base, with no race-pace sessions. 4 to 12 weeks.
Includes tempo runs and threshold work to set up next season's breakthrough. Mileage drops about a quarter to make room for cross-training. 6 to 12 weeks.
Running intensity comes down and you add 1 to 4 cross-training days a week — strength, yoga, cycling, core all count. Use it when you want all-round improvement or to stay injury-free.
Hansons, Norwegian, Polarized — what's the difference, and which fits you →
You don't have to translate your question into training jargon. Just ask Rizo — “Should I train today?” “Do I make up the session I missed?” “What's my threshold pace?” It reads your actual plan and your actual runs, and answers with your own numbers instead of handing you a recovery score.
To change your plan, it shows you the proposal first; nothing takes effect until you say yes, and it never edits on its own. When you're about to push through something you shouldn't, it tells you first. Conversations pick up where you left off, and you can start a new one anytime.
Just open a browser. Same training engine as the app.
Race fitness, VDOT trend, weekly mileage stacked by intensity, heart-rate zone distribution — switch between 90 days, 6 months, or a year, with a one-line read under every number. Much clearer on a big screen than on a phone.
console.paceriz.com →
All features are currently free on Android.
| Feature | Free | Subscription |
|---|---|---|
| Device Integration | ||
| Garmin / Strava native sync | ✓ | ✓ |
| Apple Health sync | ✓ | ✓ |
| One-tap plan send to Garmin watch | — | ✓ |
| Connect an AI assistant (Claude / Cursor · MCP) | Limited free | ✓ |
| Running Fitness | ||
| Dynamic VDOT fitness index | ✓ | ✓ |
| Pace guidance by type (easy / tempo / intervals) | ✓ | ✓ |
| Training load & recovery tracking | ✓ | ✓ |
| Heart rate zone guidance | ✓ | ✓ |
| Goal finish time prediction | ✓ | ✓ |
| Video running-form analysis (Beta) | Limited free | Limited free |
| Web data console (Beta) | Limited free | Limited free |
| AI Training Plan | ||
| AI personalized weekly plan | — | ✓ |
| Adjust training goals | — | ✓ |
| AI Coaching | ||
| AI weekly review (performance & load analysis) | — | ✓ |
| AI next-week training focus | — | ✓ |
| Race goal setting (5K / 10K / Half / Full) | — | ✓ |
| AI periodized training plan (base → build → taper) | — | ✓ |
| Supporting-race auto-adjust (race-week taper + recovery) | — | ✓ |
| Free Trial | ||
| Trial days (charged only after trial ends) | — | 2 weeks on both plans |
| Plan price | — | NT$220/mo · NT$2,290/yr |
Yes. Plans, weekly reviews, the five metrics and Rizo are all on iOS and Android. Every feature is currently free on Android.
On iPhone you can sync from Garmin or Apple Health (one at a time; Apple Watch runs come in through Apple Health). On Android, syncing goes through Garmin, and all Garmin devices are supported.
Two weeks free, with no credit card up front.
Garmin is good at recording and organizing data. Paceriz turns that data into a plan you can run next week.
100 conversations a month while you're subscribed.
Yes. Once your plan is ready, tap “Send to Garmin” on that day's training screen. The full workout — warm-up, main set, cool-down, with pace and heart-rate targets — is created on your watch and scheduled on the right date. Re-sending on the same day overwrites automatically without duplicates, and you can remove it with one tap.
Download, pick a goal, and have an executable weekly plan within 10 minutes.
Two weeks free, no credit card · All features currently free on Android
Paceriz