Bryce Harper homered in the fourth inning against Cincinnati, his 9th of the season and 31st of his career. That ties him with Ted Williams for ninth on the list for most home runs through seasonal age 20. Harper is having a Williams like season, currently batting .373/447/.783. At age 20, Williams hit .327/.436/.609.
Mel Ott holds the record for home runs through age 20 with 61. Ott hit one home run at age 18, 18 HR at age 19, and 42 at age 20. That 42 is also the record at seasonal age 20. At the moment, Harper looks like he has a shot at both those records. He only needs 10 more to tie Alex Rodriguez for third on the list through age 20. Along the way he would pass Al Kaline, Mickey Mantle, Mike Trout, Frank Robinson, and Ken Griffey, Jr. In fact, among players in the top ten eligible for the Hall of Fame, only Tony Conigliaro did not make it. Great play at a young age is an excellent indicator of a potential Hall of Fame career. Washington leads Cincinnati 6-1 in the bottom of the sixth.


I’m surprised nobody caught the slight error in Ted Williams’ age 20 year: he hit .327, not .237 as a 20 year old rookie. Williams might have been ready as a 19 year old: he hit .366 with 43 homers.
Larry » Thanks for catching that. I fixed it.