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Jason McHale

Apps:

Download JamTimer for Roller Derby Free JamTimer for Roller Derby Free icon
JamTimer for Roller Derby Free

An app to assist with the timing of jams and bouts in Roller Derby. This is an ad-supported free version of our Jam Timer application. It contains less features than the paid version. Features include: * Keep track of period, jam, and timeout times * App will automatically keep track of the number of jams and the timeouts taken by both teams. *…

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