How the 2-2 shuffle was run
Faulks, Petway, Drury and Walter studied a lateral 2-2 shuffle with ten male New Zealand National Basketball League players. Each athlete completed a submaximal familiarization and two maximal shuffles per direction. The athlete moved from the start/finish line to a change-of-direction line 2.5 m away, crossed it with one foot and shuffled back through the timing plane.
The staff put the timing gates 40 cm above the floor and 50 cm from the start/finish mark to reduce an early trigger. They repeated a trial if the player ran instead of shuffling or failed the line rule. Each trial had ten minutes of rest. That level of detail is useful because even small changes to the task can change the number on the display.
Lay out the lane before warm-up
Mark the start/finish plane and the 2.5 m change-of-direction line. Measure between the athlete's reference points, not between tripod legs. Position the gate so an athlete does not break the beam while taking a ready stance. A 50 cm approach offset was used in this study; if you choose another offset, keep it fixed and write it down.
Use the same beam height and body-crossing rule on both sides. The timing-gate alignment guide covers beam placement. Give the athlete enough space beyond the line to decelerate without meeting another player or a wall. Do not place a second station in the run-out.
Practice the route at low speed once. Then have the athlete complete one submaximal familiarization in each direction before the timed trials. If your club uses fewer trials or shorter rest, use that protocol consistently and do not compare those scores directly with the study.
Use a trial sheet that exposes bad reps
| Field | What to enter |
|---|---|
| Athlete and date | Stable ID, session date and test version |
| Direction | Dominant-side or non-dominant-side turn |
| Trial status | Valid, invalid or repeated, with a short reason |
| Time | Raw elapsed time for every valid trial |
| Conditions | Surface, footwear, warm-up and rest interval |
Do not erase a slow but valid attempt because it looks unlike the others. Preserve all valid times, then report the outcome you planned to use, such as the best trial or the mean of two trials. If the athlete's feet cross during the shuffle, mark the rep invalid and repeat it only after the planned rest period.
Faulks and colleagues' 2025 study reported ICC values of 0.86 and 0.90, with coefficients of variation of 8.61% and 9.30% for the two directions. The authors described acceptable-to-good intraday reliability, but noted that the test was not very sensitive to small changes. Those CVs came from ten players in one league. A coach should establish local repeatability before treating a small time change as progress.
Keep the result in its lane
The study also compared faster and slower shufflers with season steals. The fast group had a higher average, but the difference was not statistically significant (p = 0.22). A 2-2 time is therefore a timed lateral-movement result, not a forecast of defensive stops or steals. Reading more into it would go beyond the data.
For a broad session plan, see basketball speed testing with timing gates. The 5-10-5 guide and T-Test setup cover other planned routes. They measure different movement patterns, so keep their results in separate test columns.
A return timer may be suitable only if its documented mode matches your route and event sequence. The S-002 shuttle setup guide describes same-point return timing; the split-time guide explains cumulative versus segment values. Check the exact product page or manual rather than assuming a mode from the sensor type alone.
Questions about the 2-2 shuffle
Can I use a running crossover step?
Not if you want to reproduce a side-shuffle test. Set the form rule before testing and have an observer invalidate a crossover or run.
Should I average both directions?
Keep each direction first. If you also report a combined score, document the calculation so side-to-side changes remain visible.
Does a timing gate measure defensive skill?
No. It measures a crossing time under a defined test. It does not score anticipation, hand position, body control or decisions during play.
Research and method sources
- Faulks, Petway, Drury and Walter (2025), Reliability and Feasibility of Change of Direction Testing in National Basketball Players.
- Condello et al. (2020), Validity and Reliability of a Photoelectric Cells System for the Evaluation of Change of Direction and Lateral Jumping Abilities in Collegiate Basketball Athletes.
- Perez-Ifran et al. (2022), Change of Direction Performance and its Physical Determinants Among Young Basketball Male Players.
