Yo-Yo IR1 · level 12 of 17
Yo-Yo IR1 level 12
At level 12 of the Yo-Yo IR1, the required speed is 17.5 km/h: 8 runs of 18.23 s each. The level lasts 2 min 26 s; when it ends you have covered 2 680 m in 21 min 38 s. Completing it in full credits you with a MAS of 17.5 km/h, roughly 57 ml/min/kg of VO₂max.
We are at the top of the table, the territory of well-trained athletes and endurance specialists. Few candidates in any entry test get this far, and no official standard requires it.
The previous level, 11, was run at 17 km/h. The next one, 13, moves to 18 km/h. On this test the gap between two levels is small in speed and large in feel, because fatigue carries over from one level to the next.
Level 12 in the table
| Level | Speed | Runs | s / shuttle | Level duration | Cumulative time | Cumulative distance |
|---|---|---|---|---|---|---|
| 17 | 16 | 8 | 19 | 2 min 32 s | 2 min 32 s | 320 |
| 18 | 16.5 | 8 | 18.73 | 2 min 30 s | 5 min 02 s | 640 |
| 19 | 17 | 8 | 18.47 | 2 min 28 s | 7 min 30 s | 960 |
| 20 | 17.5 | 8 | 18.23 | 2 min 26 s | 9 min 55 s | 1 280 |
| 21 | 18 | 8 | 18 | 2 min 24 s | 12 min 19 s | 1 600 |
| 22 | 18.5 | 8 | 17.78 | 2 min 22 s | 14 min 42 s | 1 920 |
| 23 | 19 | 8 | 17.58 | 2 min 21 s | 17 min 02 s | 2 240 |
Frequently asked questions
What MAS does level 12 of the Yo-Yo IR1 give?
A MAS of 17.5 km/h, provided you complete the level. If you stop midway, the scoring rule credits the last full level, so 17 km/h (level 11).
How long does level 12 last?
2 min 26 s, i.e. 8 runs of 18.23 s. From the start of the test that makes 21 min 38 s of running.
What pace per kilometre is this level?
17.5 km/h is 3:26 /km. That is the pace you would hold on a track, without the turns: in a shuttle the same figure costs more.