PBSplits
Your fastest splits, found.
A free way to find your fastest split at every distance across all your runs, 1 km, 1 mile, 5 km, 10 km, half, marathon. Pulled from your existing workout data.
How it works
Most personal-best tools only know your finish times, if you've never raced a 5K, they think you've never done one. PBSplits looks inside each run and finds the fastest continuous window for every distance on the ladder, so the best 5K you ever ran shows up even if it was the middle 5K of a 12 K training jog.
Three tabs, and it opens on the first. Runs is every run in your Health data, pull to refresh, tap any one to open it, even the ones that never hit a standard distance. Trends opens on your run streak (current and longest, with a run-day grid) and the progression, power curve and season-mileage charts below it, each one tapping through to its own full screen: plot a distance over time, as pace or as finish time, with a year-over-year view to lay this season against the last. Me is your dashboard: distance, runs and days run for the season and all time, then your top effort at every distance, with See All opening the full record book, the ladder from 400 m to 100 K grouped Short / Road / Ultra.
Your power curve
One chart for the best pace you have ever held at every effort duration, from 30 seconds out to your longest run. It answers the question a leaderboard cannot: not just what your fastest 5 K is, but whether you are sharp over three minutes and fade, or whether you hold on. Tap any point on the curve to open the run that set it. Switch the whole chart to heart rate, or narrow it to a season or a date range you pick yourself.
Open any run and you can lay that single run over the curve, so you can see the exact durations the day was special at, and the ones it was not.
Inside a record
Tap any effort and you get the whole run, the route on a map with the record-winning segment highlighted, a splits table (by mile or by kilometre, whichever unit you picked), and charts for pace, heart rate, cadence and elevation. Tap a split and its window lights up on the map and across the charts, so you can see exactly where you found the time. If your watch recorded its own intervals or lap markers, those get their own tables alongside the automatic splits. Open the map full screen and you can replay the run, play, pause and scrub along the route. Season and all-time crowns mark the efforts that took a podium.
Great for
- Runners who want PBs from training, not just races
- Tracking progress over a season or a year
- Finding the fastest you've ever covered a 5 K, 10 K, half, or marathon
- Comparing efforts across short, road, and ultra distances
- Anyone whose watch knows more than they do
What you get
- Best-effort engine, fastest continuous split at every distance, not whole-run averages
- Full distance ladder, 400 m to 100 K, grouped Short / Road / Ultra
- Every run, browsable, pull to refresh, and open runs that never hit a standard distance
- Trend charts, progression and year-over-year, by pace or by time, pinch to zoom either axis
- Power curve, your best pace at every effort duration, as pace or heart rate, for all time, a season, or your own date range
- Any single run laid over your power curve, and a tap on the curve opens the run that set that point
- Run streak card, current and longest, with a run-day grid you can tap through to that day's run
- Season mileage totals, and distance, runs and days run for the season and all time
- Splits by mile or kilometre, tap a split to highlight its window on the map and the charts
- Your watch's own intervals and lap markers as their own splits tables
- Map view per effort, the winning segment highlighted on the route, plus a full-screen route replay
- Season and all-time crowns on podium efforts
- Share cards for a new PB, a podium, a season recap, or your whole record book
- Export a run's route as GPX or FIT, for Strava, Garmin Connect, or a file
- Pick your pace units, min/km or min/mi, plus map style, season start, week start, and which distances appear
- Exclude a bogus activity so it stops holding a record
- Read-only access to Apple Health, and your run data stays on your device