Yo-Yo IR1 · level 1 of 17

Yo-Yo IR1 level 1

Updated 5 November 2026

Short answer

At level 1 of the Yo-Yo IR1, the required speed is 10 km/h: 1 runs of 24.40 s each. The level lasts 24 s; when it ends you have covered 40 m in 24 s. Completing it in full credits you with a MAS of 10 km/h, roughly 29 ml/min/kg of VO₂max.

10km/hSpeed

1runs

24.40sper run

24 sLevel duration

40mCumulative distance

6:00 /kmPace

29Estimated VO₂max

This is the first level, the forced warm-up: everyone passes it, and the only difficulty is not setting off too fast. The beep will feel slow. Stay on it.

Level 1 in the table

Excerpt of the table around level 1.
Level	Speed	Runs	s / shuttle	Level duration	Cumulative time	Cumulative distance
5	10	1	24.40	24 s	24 s	40
9	12	1	22	22 s	46 s	80
11	13	2	21.08	42 s	1 min 29 s	160
12	13.5	3	20.67	1 min 02 s	2 min 31 s	280

Full table Calculator

Frequently asked questions

What MAS does level 1 of the Yo-Yo IR1 give?

A MAS of 10 km/h, provided you complete the level. If you stop midway, the scoring rule credits the last full level.

How long does level 1 last?

24 s, i.e. 1 runs of 24.40 s. From the start of the test that makes 24 s of running.

What pace per kilometre is this level?

10 km/h is 6:00 /km. That is the pace you would hold on a track, without the turns: in a shuttle the same figure costs more.