Complex sentence: Outside of the four major programs, Baylor was only 1 of 2 schools that had all 19 of its sponsored sports advance to the post season, and also won the Western Horsemanship national title in varsity equestrian.
Split into simpler sentences: Outside of the four major programs, Baylor was only one of only two schools that had all 19 of its sponsored sports advance to the post season. The university also won the Western Horsemanship national title in varsity equestrian.