Has an NCAA Baseball game ever ended 20-15?
It has. 20-15 has been a NCAA Baseball final 36 times in 291,897 games. The first was New Mexico State beat Oklahoma City on January 1, 1990; the latest was Mercer beat Samford on May 4, 2024.
That makes 20-15 the 242nd most common final score out of 531 that have ever occurred in NCAA Baseball. One point away, 21-15 has happened 14 times and 20-16 has happened 16 times.