Shiai Rules and Refereed Randori Playbook: The Penalty Card, the Cadence, and Practice That Counts the Scoreboard

Mat Manual companion guide to "Shido Math: Losing on Penalties You Never Felt." Print it. The article teaches the arithmetic. This book is the full card — every penalty in the current cycle in plain language, the scores including the returned yuko, the referee's words and gestures — plus the training system that installs an honest cadence: refereed practice formats, grip-clock drills, edge discipline, and the two-shido scenario.

Player: ______________________________ Club: ______________________________ Referee/coach: ______________________________

RULES CURRENCY — READ FIRST ☐ This book states the IJF framework as of the current cycle (2025 clarifications included). Judo's rules are revised between cycles and adapted by national bodies, regions, and school events. Before any competition, check the event's own rule sheet against Part 1 and Part 2 and pencil the differences onto the cards. A pencil difference found in training is free; the same difference found mid-match costs a column. ☐ Safety offenses (head diving and friends) are never "worth it." This book lists them so players recognize and avoid them, not to price them. ☐ In practice refereeing, the referee's calls are final for the round even when wrong. Arguing with practice calls trains the exact habit Part 9 forbids on the day.

Part 1: The Scores Card

Golden score: tied at time, the next score or decisive penalty ends it. In golden score, the penalty column matters even more — a shido there can be the match.