Here?s an interesting comparison. Usually, you?d expect AL pitchers to have worse numbers, since AL pitchers have to face the DH, while NL pitchers get to face their counterparts. But this year, AL pitchers are outperforming NL pitchers:
Line Avg OBP Slg
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Allowed by AL Pitchers .269 .334 .428
Allowed by NL Pitchers .269 .340 .432
This is particularly counterintuitive when you compare AL designated hitters to NL pitchers and see the significant additional difficulty AL pitchers have to face:
Line Avg OBP Slg
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AL Designated Hitters .260 .344 .458
NL Pitchers .133 .169 .176
But here?s probably what explains why AL pitchers look better than NL pitchers this year. Check out the interleague play results:
Line Avg OBP Slg
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AL Pitchers vs. NL Hitters .251 .305 .351
NL Pitchers vs. AL Hitters .275 .335 .398
When you throw out interleague play, this is what you get:
Line Avg OBP Slg
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AL Pitchers vs. AL Hitters .270 .331 .416
NL Pitchers vs. NL Hitters .265 .329 .414
Still, that?s not a huge difference. Especially given that AL position players (excluding DH or pitchers) and NL position players (excluding DH or pitchers) are hitting about the same overall:
Line Avg OBP Slg
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NL Position Players .274 .339 .434
AL Position Players .276 .336 .429