Has an NCAA Baseball game ever ended 29-12?
Exactly once. On March 24, 2001, Temple beat Xavier 29-12, and no NCAA Baseball game before or since has ended that way. When it happened it was a scorigami, the first 29-12 in league history.
That makes 29-12 the 457th most common final score out of 531 that have ever occurred in NCAA Baseball. One point away, 30-12 has happened 2 times and 29-13 has happened 7 times.