Yo-Yo IR1 · level 15 of 17
Yo-Yo IR1 level 15
At level 15 of the Yo-Yo IR1, the required speed is 19 km/h: 8 runs of 17.58 s each. The level lasts 2 min 21 s; when it ends you have covered 3 640 m in 28 min 45 s. Completing it in full credits you with a MAS of 19 km/h, roughly 64 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, 14, was run at 18.5 km/h. The next one, 16, moves to 19.5 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 15 in the table
| Level | Speed | Runs | s / shuttle | Level duration | Cumulative time | Cumulative distance |
|---|---|---|---|---|---|---|
| 20 | 17.5 | 8 | 18.23 | 2 min 26 s | 2 min 26 s | 320 |
| 21 | 18 | 8 | 18 | 2 min 24 s | 4 min 50 s | 640 |
| 22 | 18.5 | 8 | 17.78 | 2 min 22 s | 7 min 12 s | 960 |
| 23 | 19 | 8 | 17.58 | 2 min 21 s | 9 min 33 s | 1 280 |
| 24 | 19.5 | 8 | 17.38 | 2 min 19 s | 11 min 52 s | 1 600 |
| 25 | 20 | 8 | 17.20 | 2 min 18 s | 14 min 09 s | 1 920 |
Frequently asked questions
What MAS does level 15 of the Yo-Yo IR1 give?
A MAS of 19 km/h, provided you complete the level. If you stop midway, the scoring rule credits the last full level, so 18.5 km/h (level 14).
How long does level 15 last?
2 min 21 s, i.e. 8 runs of 17.58 s. From the start of the test that makes 28 min 45 s of running.
What pace per kilometre is this level?
19 km/h is 3:09 /km. That is the pace you would hold on a track, without the turns: in a shuttle the same figure costs more.