Corbyn Running Calculator - A run time calculator
iOS app by Mark Corbyn. Utilities · Mark Corbyn
- Store rating
- 5 / 5
- Store rating count
- 2
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.1
- Listing last refreshed
- 2026-09-08
View the original store listing
Store description excerpt
Made by a runner, for runners. The Corbyn Running Calculator app allows you to perform all your training and race pace calculations which are otherwise so tricky and time consuming to calculate. • Calculate pace required for your target race time • Calculate your average split time for an interval session • Find out how far you can run within a given time period • Work out how fast a competitor ran to achieve their race finish time As a runner it has always frustrated me that these calculations are so time consuming without a calculator and there are no apps that make it really easy. So I decided to build an app, and share it for others to enjoy. Some examples of the kind of calculations I regularly perform are: • Target race pace - I want to run 28k in less than 2 hours - Type: 2:00:00 ÷ 28 = [4:17.143] • Average interval session rep time - I did a 500m interval session and want to know what my average rep time was - Type: 88.6 + 90.5 + 89 + 87 + 91.3 + 85.4 ÷ 6 = [88.633] • How far will I run in a given amount of time - I have an hour to squeeze in a run, and I know how fast I usually run, but how far will I end up running? - Type: 1:00:00 ÷ (Change mode to Time) 4:40 = [12.857] • Arbitrary race pace calculation - I saw a competitor won a 6.3km race in 19:38, what pace did they need to run at to do that? - Type: 19:38 ÷ 6.3 = [3:06.984] • Race finish time calculation - If I run a marathon at 4:00 per km, what would my finish time be - Type: 4:00 × 42.195 = [2:48:46.8] I hope you find it as useful as I do. Happy running!
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