Has an NPB (Japan) game ever ended 19-10?

Exactly once. On August 28, 1987, Yakult Swallows beat Yokohama Taiyo Whales 19-10, and no NPB (Japan) game before or since has ended that way. When it happened it was a scorigami, the first 19-10 in league history.

Where 19-10 sits among nearby NPB (Japan) scores. Deeper blue means a score has happened more often; the outlined cell is the new one.

That makes 19-10 the 191st most common final score out of 223 that have ever occurred in NPB (Japan). One point away, 20-10 has happened never and 19-11 has happened 1 times.

Every 19-10 in NPB (Japan) history

Date	Result	Season
1987-08-28	Yakult Swallows over Yokohama Taiyo Whales	1987

Open the NPB (Japan) grid at 19-10