John ClarksonDetails Athlete : John Clarkson9.11|3.404|22|en|19 Jul 2016, 17:34
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John Clarkson
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John Clarkson9.11|#DTIME#|22|en|19 Jul 2016, 17:34http://sporthenon.com/athlete/John-Clarkson/KBJC2MJXG43DM
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SportEventYearResultDate
Baseball
MLB – Statistical leaders – Pitching – ERA1892
1. 
C. Young
 2. 
T. Keefe
 3. 
J. Clarkson
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Baseball
MLB – Statistical leaders – Pitching – ERA1889
1. 
J. Stivetts
 2. 
J. Duryea
 3. 
J. Clarkson
detailsDetails
Baseball
MLB – Statistical leaders – Pitching – ERA1885
1. 
T. Keefe
 2. 
M. Welch
 3. 
J. Clarkson
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LeagueYearNameInducted as
MLB
1963John CLARKSONP