Observed arrival · 2026-09-26
The roller derby bench, with a rewind button
DerbyMetrics is an iPad tool for tracking roller derby lineups, scoring, penalties, and opposing jammers during a game.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Roller derby bench coaches and team staff
- Worth noticing
- A second bench manager can log passes and penalties from another device by scanning a QR code.
Field notes
Teams enter roster numbers and derby names, mark jammer, pivot, and blocker roles, and add opponent numbers. The page says games are saved on-device and that rosters do not need legal names, birth dates, or contact details. It lists WFTDA 2025, USARS Domestic, and JRDA rulesets, and describes importing past games from StatsBook as well as exporting finished games.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue