Seasons When Two Players Under Age 25 Had 9+ WAR

Data from the Baseball Reference Play Index. This has only happened 7 times, including 2015 & 2016 (an only once between 1912 and 2014 with Mays and Mantle in 1955). If Betts can make it to 10, then we would have only the second time 2 guys made it that high. That won't be easy and, of course, the season is longer than it used to be, so maybe we should use 9.5 for 154 game seasons. That would still be rare.

Player	WAR	Year	Age
Ty Cobb	9.8	1909	22
Eddie Collins	9.7	1909	22
Ty Cobb	10.5	1910	23
Eddie Collins	10.5	1910	23
Ty Cobb	10.7	1911	24
Shoeless Joe Jackson	9.2	1911	23
Tris Speaker	10.1	1912	24
Shoeless Joe Jackson	9.6	1912	24
Mickey Mantle	9.5	1955	23
Willie Mays	9	1955	24
Bryce Harper	9.9	2015	22
Mike Trout	9.4	2015	23
Mike Trout	10.3	2016	24
Mookie Betts	9.5	2016	23