6th December 2023
New session: Royal Flush
Learn all about this challenging running session.
1st December 2023
Updated: Guide to Strides
We've had a big update of our guide to strides for runners.
9th November 2023
Updated: Guide to Heart Rate Training
We've had a big update of our guide to heart rate training for runners. It's also now medically reviewed.
20th October 2023
New tool: Marathon Pace Chart
Check out our new marathon pace chart. You can see split times at-a-glance for marathon finish times all the way from two hours (good luck) up to eight hours.
15th October 2023
Updated world record paces
13th October 2023
New tool: Grade Adjusted Pace (GAP) calculator
Find the flat equivalent of a hilly run or race with out new Grade Adjusted Pace calculator.
New tool: reverse VO max / VDOT calculator
You can now predict race times from a single VO2 max / VDOT value
11th October 2023
Updated walking calorie calculator
We've updated our walking calorie calculator so that you can add an elevation or a treadmill grade. You can also specify the weight of a backpack.
7th October 2023
Updated running calorie calculator
We've updated our running calorie calculator so that hills can be considered in the calculation. You can also add the weight of a backpack.
29th December 2022
Have you ever wondered how many parkruns it's possible to do in a year?
17th December 2022
We've redesigned our site to make it faster, prettier, and easier to navigate.
14th August 2022
Pace to speed converter update
We've updated our pace/speed conversion calculator to include details of how calculations are carried out and also to include exztra finish time distances in the summary.
15th July 2022
Heart rate zones calculator update
Our heart rate zone calculator now includes fat-burning zones, and also give personalised training session recommendations based on your personal zones.
25th June 2022
New Tool: VO2 max calculator
Find your VO2 max from a recent race result. Based on Jack Daniels' VDOT values.
23rd June 2022
New Tool: Cooper test calculator
Estimate your VO2 max with our Cooper test.
18th May 2022
Find out all about running uphill and downhill in our new guide to hill running
21st August 2021
Update for mobile devices
We've updated our tools and calculators to make inputting times and paces easier on mobile devices.
14th August 2021
New Tool: Training pace calculator for runners
Our training pace calculator helps you determine suitable training paces and comes with plenty of personalised training session examples to get you going.
30th July 2021
New Tool: Calorie calculator for walkers
We now have a calorie calculator for walkers.
20th July 2021
New Tool: Calorie calculator for swimmers
We now have a calorie calculator for swimmers on the site. Swim away!
29th May 2021
See our description of fartlek sessions.
28th March 2021
Use our treadmill conversion chart to quickly convert between miles per hour, kilometres per hour, minutes per mile, and minutes per kilometre. Perfect for treadmill runners.
9th March 2021
More cycling tools: speed tables
6th March 2021
New Tool: Calorie calculator for cyclists
24th February 2021
New Tool: Reverse Age Grading Calculator
Brand new calculator! Our reverse age grading calculator allows you to work out how fast you need to run to achieve any age-grading percentage.
21st February 2021
Age Grading Calculator Updated
We've updated our age grading calculator to use the 2020 road tables.
31st October 2020
We've got a new calorie calculator for runners.