Number Concentration Table Game

script by Hilary Caws-Elwitt

as recommended in chapter 7 of The Non-Runner's Marathon Trainer by Whitsett, Dolgener, and Kole.

  • This game is supposed to help you learn to concentrate, and in turn benefit your running (or any other sport).
  • Choose the number of rows and columns you want and then click the button below to display a grid of the numbers 0 through [row times column].
  • To play, click the numbers in order, starting with 0, as quickly as you can.
How many rows? How many columns?

I spent way too much time writing this (I didn't know Javascript, and I still don't grok it!), so I'd love to hear from anyone who uses this! View source to see the script. Please email me at

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