Has an NPB (Japan) game ever ended 18-11?

Exactly once. On May 3, 2002, Hanshin Tigers beat Hiroshima Toyo Carp 18-11, and no NPB (Japan) game before or since has ended that way. When it happened it was a scorigami, the first 18-11 in league history.

Where 18-11 sits among nearby NPB (Japan) scores. Deeper blue means a score has happened more often; the outlined cell is the new one.

That makes 18-11 the 191st most common final score out of 223 that have ever occurred in NPB (Japan). One point away, 19-11 has happened 1 times and 18-12 has happened never.

Every 18-11 in NPB (Japan) history

Date	Result	Season
2002-05-03	Hanshin Tigers over Hiroshima Toyo Carp	2002

Open the NPB (Japan) grid at 18-11