Players who had a six-year period when they led MLB in both OBP & SLG

I had bases.chat, the AI program created by SABR member Ted Ingram, find all of the data in the table below. Then I verified the data using Stathead from Baseball Reference. The search covered the years 1901-2025.

Yesterday's post listed all the players with both 400+ HRs and a .400+ OBP. Mike Trout was one of the fourteen players. I also noticed that he led all of MLB in both OBP & SLG over the years 2014-2019.

So I wanted to find out how many different players had done this. There are 12 different guys in the table below. For most guys, I show just their first six-year period when they did it. 

Most of the batters had overlapping stretches. Wagner, for example, also did it from 1904-1909 and 1905-1910. That gives him three periods, as shown in the last column. If a player is listed more than once, that means he had at least two non-overlapping six-year periods. Ruth did it over the years 1915-1920 and then did it from 1921-1926 and then from 1927-1932. 

To qualify, a batter needed 1,800+ ABs for any six-year period. 

Player	From	To	OBP	SLG	Periods
Honus Wagner	1903	1908	0.417	0.510	3
Ty Cobb	1906	1911	0.413	0.511	8
Joe Jackson	1908	1913	0.455	0.565	1
Ty Cobb	1912	1917	0.461	0.531	8
Babe Ruth	1915	1920	0.452	0.652	15
Babe Ruth	1921	1926	0.495	0.730	15
Babe Ruth	1927	1932	0.477	0.713	15
Ted Williams	1939	1944	0.481	0.642	17
Ted Williams	1945	1950	0.490	0.643	17
Ted Williams	1951	1956	0.487	0.632	17
Mickey Mantle	1957	1962	0.445	0.601	2
Willie McCovey	1965	1970	0.405	0.578	2
Frank Thomas	1989	1994	0.449	0.590	2
Barry Bonds	1997	2002	0.472	0.589	7
Barry Bonds	2003	2008	0.521	0.671	7
Albert Pujols	2004	2009	0.435	0.636	3
Mike Trout	2014	2019	0.425	0.597	4
Aaron Judge	2020	2025	0.423	0.645	1