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Reactive Shuttle

Dashr | Blue - Operating the

The reactive shuttle test is part of a fitness testing protocol for the NBA Combine - but can be utilized by many sports. The players complete an agility circuit, first running to the right or left direction in response to a stimulus (light). This drill uses a stationary start and requires 1 timing gate and 2 React modules.

Step-by-step instructions


  • Install batteries in each laser and React module you plan to use.

  • Install/open the Dashr app on your phone or tablet. (Create an account here if you have not already)

  • Register each laser/React in the app - Navigate to the "Device Registration" button at the bottom, power on the lasers one at a time and select them from the "Available" list and assign them a number. Write that number on your device. (This only has to be done the first time you use the laser with this phone/tablet)


  • Return to the home menu and select Reactive Shuttle drill.

  • Screw the laser onto a taller tripod, positioned so that the beam is around hip height.

  • Screw a reflector onto a matching tripod and position laser and reflectors across from each other (~6 ft) to create a line to pass through.

  • With the laser on, select the appropriate laser from the drop-down menu and press the "Connect" button. If it does not work the first time, repeat.

  • Screw each React module onto a taller tripod, positioned as high as you would like.

  • Similar to the laser, select the React module from the drop-down menu and connect both the left and right lights. If it does not work the first time, repeat.

  • Once all devices are connected, press the "Start Testing" button.

  • Check in the appropriate athlete (details here) - optional.

  • With QuickRun off (option in settings - this is prefered) you will see “Set” and “Reset” buttons to give you control of when a test starts. Press "Set" once the athlete is ready.

  • Now you wait... Either the left or right light will turn on between 3-7 sec after pressing the "Set" button. Random time, and random direction.

  • When the light turns on, an arrow will indicate the direction and a reaction time (time from when the light turned on to when the athlete left the gate) is presented.

  • Coming back through the gate will give the first split time, then back through it again will give the finish. Note that the reaction time is included in these times.

  • Note that the NBA Combine typically has this set-up on the key, where the athlete performs this shuttle tagging the sidelines of the key. Other sports, such as hockey, soccer, or football might set this up like a typical 5-10-5 with a reaction component.

  • Press "Reset" to clear the time for the next athlete, or stop the drill early.



Visit our forum for additional details, FAQs, and specifics on drills - all on a searchable platform where you can also ask questions and share experiences.

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