Do you ever want to run at a percentage of your goal or race pace, such as running at 80% of 5 minutes per kilometer or mile? For anyone interested, I’ve made an easy online calculator to calculate percentages of pace. You can choose which of the two methods mentioned (division and multiplication; see Running Writings) to use. You can find the calculator at http://tinyurl.com/trainingpace.
I hope it’s useful to other runners as well!