
Free
About
Jamzo brings together essential tools to support teams and officials during roller derby games.
NEW — LINEUP & PENALTY TRACKER
Easily track lineups and penalties throughout the game:
• Record the skaters participating in each jam
• Identify jammers, pivots, and blockers
• Assign penalties and track Penalty Box visits
• View the game history in real time
• Work independently or with another operator on separate devices
• Access a complete game recap
• Export game data for review or archiving
SCOREKEEPER
• Record the score jam by jam
• Follow the game’s progress in real time
• Choose between solo and dual modes
• View and export the game recap
TIMING TOOLS
• Jam Timer: track jams, intervals, and periods
• Penalty Timer: time Penalty Box visits
• Blocker Timer: manage blocker penalties
• Jammer Timer: manage jammer penalties
• Dual Timer: use two timers on a single screen
TEAM DIRECTORY
• Discover roller derby teams
• View their city and country
• Access their social media pages
RULES QUIZ
• Test your roller derby knowledge
• Choose your difficulty level
• Learn and review the rules in a fun way
Jamzo features a clear, responsive interface designed to remain easy to use in real game conditions.
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What's New in Jamzo
1.3.1
August 29, 2026
Secure account creation and sign-in for Head Games Match access protected by a private code Improved Lineup Tracker in solo and duo modes Match sheets and statistics export in Excel format New Head Game recap Expulsion and suspension forms Privacy, stability, and general interface improvements
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