Has an NPB (Japan) game ever ended 29-1?

Exactly once. On August 1, 2003, Fukuoka Daiei Hawks beat Orix Bluewave 29-1, and no NPB (Japan) game before or since has ended that way. When it happened it was a scorigami, the first 29-1 in league history.

Where 29-1 sits among nearby NPB (Japan) scores. Deeper blue means a score has happened more often; the outlined cell is the new one.

That makes 29-1 the 191st most common final score out of 223 that have ever occurred in NPB (Japan). One point away, 30-1 has happened never and 29-2 has happened never.

Every 29-1 in NPB (Japan) history

Date	Result	Season
2003-08-01	Fukuoka Daiei Hawks over Orix Bluewave	2003

Open the NPB (Japan) grid at 29-1