produced her best 800m, 5000m and 10,000m times in a summer of track racing that followed her marathon debut in London. She followed the track season with a second marathon best – this time a world record – later that year in Chicago. Most famously, Seb Coe

pacing strategies affect race results. They asked 11 experienced female runners to run 5K on a treadmill to determine their average for the distance. The runners were then asked to run 5K again, but tackling the first 1.63K at different speeds: once

for Stuart Barr, 39, and Nicholas Davis, 32, who both live in Cumbria – a part of the world not exactly renown for its mild winters. They often run 10-13 miles together at about 4am, a particularly bleak time to run when the northern climate is blowing wind

(5k), 36:21 (10k during marathon), 58 (10m), 1:17 (1/2m) 1:36 (16m)] Mike Gratton I would use the period going into the summer to do a lot more interval work and try to improve your 10K times, since this will be key to achieving a faster marathon time

'd expect to achieve during sessions of 800m to one-mile reps.95% Peak heart rate at 400m rep pace (not full-out race pace). NB It's difficult to use a heart-rate monitor to pace short intervals below 1,000m. The figures above 85% are a guide to what you

:2846 6:50 7:48 9:3947 6:58 7:58 9:5148 7:07 8:07 10:0249 7:15 8:16 10:1450 7:24 8:26 10:2551 7:32 8:35 10:3652 7:41 8:45 10:4853 7:49 8:54 10:5954 7:57 9:04 11:1055 8:06 9:13 11:2156 8:14 9:22 11:3257 8:22 9:32 11:4358 8:31 9:41 11:5459 8:39 9:50 12:0560

, so you can change some specifics when reality sets in."—Jeff Galloway, former Olympic 10,000m runner11. Come ready to play"Fitness has to be fun. If it is not play, there will be no fitness. Play is the process. Fitness is merely the product

inspired the trend in 1954 with epic sessions like 10 x 200 metres followed by 50 x 400 metres – a combined 13.67 miles of speedwork. Ambitious runners the world over have aspired to that imposing standard ever since, in a quest for that elusive PB

hard, 1M easy; or speed session (eg 4 x 1K with 200m jog recoveries) RUN 1M easy, 3-4M hard, 1M easy; or speed session (eg 10-12 x 400m with 200m jog recoveries) RUN 1M easy, 4M fartlek, 1M easy Wed SWIM 16-20 x 1 length steady, with 10

and as evenly paced as possible and use your average speed when doing your 400-800m intervals. Put your new times to use. "At the end of each interval training session, you should be just about able to keep up the pace – if you can, increase your duration by 10