April 17, 2021

Jason Heyward’s Age-30 Season Looked A Lot Like His Age-20 Season (FanGraphs)


Here are two seasons, played 10 years apart:

Year PA AVG OBP SLG BB% K% ISO wRC+ WAR/600
2010 623 .277 .393 .456 14.6% 20.5% .179 134 4.43
2020 181 .265 .392 .456 16.6% 20.4% .190 131 5.96

We’re used to seeing a hitter’s numbers change over the course of that many seasons — sometimes improving in some areas, often declining in others. A table like the one above suggests both an incredible sustaining of abilities and an undying faith in approach. Ironically, that is not the story of Jason Heyward, a player who has been neither consistent in his performance nor trusting of his own approach, having tinkered constantly with his swing mechanics and his goals as a hitter. What the table above omits are the nine seasons between 2010 and 2020, which showed many different versions of Heyward that add up to a hitter far less valuable than the ones that bookend them.

Jason Heyward Career Batting Numbers

Year PA AVG OBP SLG BB% K% ISO wRC+ WAR/600
2010 623 .277 .393 .456 14.6% 20.5% .179 134 4.43
2011-19 4,957 .260 .337 .407 9.8% 16.9% .148 104 3.21
2020 181 .265 .392 .456 16.6% 20.4% .190 131 5.96

To me, this table is much more interesting than…

Read “Jason Heyward’s Age-30 Season Looked A Lot Like His Age-20 Season” at FanGraphs