Ian Happ headed into the 2016-17 offseason after splitting time between A+ and AA, where he belting 15 homers in 567 plate appearances. Just like Happ’s power numbers, FanGraphs modestly rated the top prospect’s power as a 50 on a standard 20-80 scale, meaning he was projected as a league-average power hitter.
However, Happ has been surprisingly better than league average in the power department and is actually in the very top tier of sluggers. He’s blasted 13 homers in 203 plate appearances at the big-league level, all while hitting the gaps and posting a .290 ISO (a measure of raw power).