Tenidori: Tennis, Reduced to Ten-Second Decisions

Field notes

Tenidori frames tennis judgment as two recurring tasks: choosing where to return and choosing where to move. Its question library is divided by singles and doubles play, formations, match situations, and five hitting-depth zones, including a named pressure zone where the player should not stop. The page also describes member-response distributions and conditional alternative answers, suggesting a distinction between established tactical principles and the community’s actual choices.