Let your Apple Watch do the running.
Runrunrun does the reading.

What happened, kilometre by kilometre

Lap time, pace, average heart rate, and elevation change in one table. The fastest lap is called out, and pace is drawn as a bar so you can see it at a glance. The day you went out too fast is obvious.

• Split every 1km, 1mile, or automatically
• The partial final lap is shown separately

A Z2 day, or a day you pushed

Heart rate over time, plus the minutes spent in each zone. Z1 through Z5, in time and percentage, so you can tell what kind of run it really was. The boundaries bend to fit you.

• Max heart rate or heart rate reserve (Karvonen)
• Max heart rate is estimated from your date of birth in Health, and never overwritten once you set it

Where was that route again?

Your GPS track on a map, coloured by pace or elevation, with a marker at every split. Tap for full screen. Indoor runs hide it automatically.

What it adds up to, and your fastest stretch

Trends by week, month, or year. The distance chart overlays the same period a year ago, and average pace can be split out by distance band.

• Personal bests for 1km, 5km, 10km, half, and full
• A personal best isn't one of Health's standard types, so it's computed from your distance data

Numbers don't explain themselves

Add a note, a perceived effort score, how your body felt, and tags to any run. Turn on the setting and your effort is written back to Health as Workout Effort.

• Register your shoes and the mileage adds up, with a notification when a pair reaches its lifespan
• Distance from before you installed the app can be entered as a starting offset

How many days until race day

Set weekly or monthly goals on distance, time, or number of runs, and follow the progress from the home screen. Add a race and the countdown stays in view; afterwards, attach the actual run and see the gap against your target.

• A weekly plan, matched against what you actually ran
• Matches are offered, never assumed, so a double day never gets miscounted