10K pace intervals: five 5-minute reps at 92–96% of your vVO₂max, your race pace, with 2 minutes of jogging between each. 25 minutes of work in a 58-minute session, for runners with some threshold training behind them who are building towards a 10K.
| Target | Zone | Time | vVO₂max 14 km/h | vVO₂max 16 km/h | vVO₂max 18 km/h |
|---|---|---|---|---|---|
| 92–96% | 5VO₂max | 25 min | 4:40/km–4:28/km 1073–1120 m per rep | 4:05/km–3:54/km 1227–1280 m per rep | 3:37/km–3:28/km 1380–1440 m per rep |
| 58–65% | 1Recovery | 8 min | 7:23/km–6:36/km 271–303 m per rep | 6:28/km–5:46/km 309–347 m per rep | 5:45/km–5:08/km 348–390 m per rep |
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This session teaches you your race pace. A 10K sits between threshold and vVO₂max: too fast to feel comfortable, too slow to feel like a sprint. On race day the classic mistake is going off too quick, dragged along by the crowd. Rehearsing the pace in 5-minute reps drills it into your legs and your head, until you recognise it without checking your watch.
The aim isn't to rack up time near VO₂max, as in long intervals, but to hit a precise pace, rep after rep. Two minutes of jogging gives enough recovery to stay accurate through to the fifth. No trial has tested this exact format: it's race-specific work, as used in training plans.
Runners building towards a 10K, or a half, who have already been doing threshold sessions for several weeks, such as a tempo run or cruise intervals. You need a recently measured vVO₂max, or a realistic 10K pace from a recent race: that's what sets the session. If your last 10K was more than a year ago, do a test first.
Once a week at most, mainly in the last few weeks of your build-up, when race pace becomes the priority. Before that, threshold and VO₂max sessions do most of the work. Put it after an easy day or a rest day, never the day before a long run, another hard session or a race. To progress, keep the pace and stretch the reps: 4 × 6 min, then 3 × 2 km; or cut the jog to 90 seconds.
10′ at 60–65% vVO₂max + 5′ at 66–72% vVO₂max
10 minutes of easy running at 60–65% of vVO₂max, then 5 minutes at 66–72%. Add two or three strides at the end: going straight from an easy jog to 10K pace is a jolt.
5 × 5′ at 92–96% vVO₂max, 2′ recovery
Five 5-minute reps at 92–96% of your vVO₂max, with 2 minutes of jogging at 58–65% between each. At 16 km/h that's 4:05 to 3:54/km, or 1,227 to 1,280 metres per rep: just over three laps of a track. If you have a recent 10K time, use it: the range is wide, and your race pace is just one point inside it. Aim for consistency: all five reps should cover the same distance, give or take a few metres. The jog covers 309 to 347 metres: keep moving.
10′ at 55–65% vVO₂max
10 minutes of very easy running at 55–65% of vVO₂max. Note your average pace for each rep: it's a good guide to what you can aim for on race day.
Breathing is heavy from the second rep, without tipping into gasping. You can still get out two or three words, not a sentence. The 2-minute jogs feel short, and that's deliberate: you never fully come down. The fourth rep is the real test. Guide: 7 to 8 out of 10.
The first rep feels easy, so you nick a few seconds. But the session is there to learn a pace, not to beat it: one rep too quick blurs the reference and costs you on the rest. Stay in the range, at the same rhythm, to the end.
Set the session on your current pace, not your target. If you slow noticeably from the fourth rep, the target was too ambitious: reset it from a recent race rather than forcing it.
The 2 minutes are run, at 58–65% of vVO₂max. Walking lets your heart rate drop too far, and each rep restarts from lower down: further from what you'll face in a race with no breaks.
Without a threshold base, 25 minutes at 10K pace costs a lot and teaches little. Save it for the end of your build-up, once threshold and VO₂max sessions have done their job.
The French athletics federation's 10K plan (athle.fr, 8 weeks at 4 sessions a week, read in extract) includes blocks at 10K pace within progressive sessions, along with intervals at 90% of vVO₂max. Jack Daniels (Daniels' Running Formula, Human Kinetics) places 10K pace between his threshold and interval paces; in his tables (VDOT 50) it is about 94–95% of I pace, treated here as vVO₂max, according to secondary reproductions. The 92–96% range follows from this, widened downwards for less trained runners, whose race pace is a smaller share of their vVO₂max. No published protocol in the 5 × 5 min format with 2-minute jogs was found: the format, recovery, warm-up and cool-down are Wattson choices. Bottom line: no controlled study; this is race-specific work, widely used in training plans.
Your 10K race pace, which the session puts at 92–96% of your vVO₂max. At 14 km/h, 4:40 to 4:28/km; at 16, 4:05 to 3:54/km; at 18, 3:37 to 3:28/km. If you have a recent 10K time, trust it over the range: aim for your average pace from that day.
Similar intensity, different purpose. The Norwegian 4 × 4 targets VO₂max: 4-minute reps, 3 minutes' recovery, and a heart rate that has to climb high. 10K pace intervals target a pace: five reps, shorter recoveries, and consistency as the measure of success. The first fits all year round; the second belongs near the end of a build-up.
Once a week at most, in the last few weeks of your build-up: two or three sessions are often enough to lock in the rhythm. In race week, keep a short version of two or three reps, to keep the pace in your head without tiring yourself.
If you slow from the fourth rep, your target is too ambitious for now. Finish the session at the bottom of the range, then reset your reference from a recent race or a new test. Overreaching in training often foreshadows going off too fast on race day.
Both work. The track gives exact markers: at 16 km/h, one rep is just over three laps. The road is closer to your race, with its bends and gradients: go by your watch, and accept a few seconds' drift on the drags.
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