SPORT TEST LAB
Referees

Assistant Referee Intermittent Endurance Test (ARIET)

The ARIET measures endurance for assistant referees. Runs switch between 20 m forward out and back and 12.5 m side-step out and back, with 5 s jog rest after each run. The pace rises as the test goes on.

Time: about 20 minSpace: 25 mYou need: Phone, Speaker, Cones
Assistant Referee Intermittent Endurance Test (ARIET)

How to run the test

  1. Mark lines at 0, 12.5 and 20 m and a marker 2.5 m behind the start.
  2. Run 20 m out and back on the beeps, then jog around the marker: 5 s rest.
  3. Next run: side-step 12.5 m out and back, facing the same way, then 5 s rest. Keep alternating; the pace rises.
  4. Tap a player who is late. The second warning ends their test.

Course layout

-2.5 mStart0 m⇆12.5 m20 m

Levels and speeds

KNVB (Yo-Yo IE2 cadence). Times are rounded to 0.1 s.

LevelSpeed, km/hShuttlesShuttle time, sTotal distance, mTotal time
8-111.5212.5650:30
10-112.5211.51301:03
12-113.5210.71951:34
13-114810.34553:37
1314.3810.17155:38
14-114.589.99757:37
1414.839.81,0808:21
15-11539.61,1709:05
1515.369.41,36510:32
16-115.569.31,56011:57
1615.869.11,75513:22
17-116691,95014:46
1716.368.92,14516:10
18-116.568.72,34017:32
1816.868.62,53518:53
19-11768.52,73020:14
1917.368.32,92521:34
20-117.568.23,12022:54
2017.868.13,31524:12
21-118683,51025:30

Versions you can run in the app

KNVB (Yo-Yo IE2 cadence)

Questions

What do I need to mark?

Lines at 0, 12.5 and 20 m, and a marker 2.5 m behind the start for the jog rest.

How is the ARIET scored?

The result is the distance in metres, shown with level and run. The first late arrival is a warning, the second ends the test.

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