MLB Park Factors

We use data back to 2000 with new parks only using data from when they were built or reconfigured.

We apply a weight to each factor based on the number of at bats at the park. The more at bats, the higher the weight, up to 1.00.

HR (% of hits that are HR)  3B (% of hits that are 3B)  2B (% of hits that are 2B)  Avg (% of ABs that are hits)  SO (% of PAs that are strikeouts)  BB (% of PAs that are walks)

All Batters

Team Weight HR 3B 2B Avg SO BB
ARI1.00+5%+52%+7%+5%-4%+0%
ATL1.00-4%-8%-5%+0%+2%+1%
BAL1.00+12%-31%-9%+1%-4%0%
BOS1.00-17%-8%+23%+5%-2%-2%
CHC1.00+6%-9%-1%+0%+3%+2%
CHW1.00+28%-24%-6%+0%+2%+8%
CIN1.00+27%-27%-2%+0%+3%0%
CLE1.00-4%-36%+3%-2%+3%+1%
COL1.00+12%+34%-1%+15%-13%-1%
DET1.00-5%+43%-8%+2%-8%-2%
HOU1.00+11%+24%-3%0%+4%-1%
KC1.00-13%+17%+4%+5%-10%0%
LAA1.00-9%-27%-3%0%0%-5%
LAD1.00+7%-48%-5%-4%+5%-2%
MIA0.92-25%+41%+3%+1%-6%+2%
MIL1.00+15%-1%+1%-2%+4%+5%
MIN1.00-15%+18%+1%+1%-4%-1%
NYM0.91+17%-21%-5%-6%+5%+3%
NYY1.00+26%-38%-8%+1%+1%+3%
OAK1.00-3%-3%+0%-4%-2%+1%
PHI1.00+16%-9%-1%+0%+2%0%
PIT1.00-19%-19%+5%+1%-9%-6%
SD0.570%+18%-6%-4%+2%+1%
SEA0.61-1%-32%+1%-2%+4%-3%
SF1.00-22%+31%+1%-1%-2%-3%
STL1.00-15%-12%-4%-2%-4%+0%
TB1.00-4%+24%-2%-3%+2%0%
TEX1.00+9%+27%0%+5%-4%0%
TOR1.00+13%+11%+11%+1%+4%-1%
WAS1.00-7%-21%-1%+3%-6%-6%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI1.00+3%+55%+10%+5%-3%-1%
ATL1.00-6%-5%-3%-1%+2%-1%
BAL1.00+11%-29%-12%+2%-5%+0%
BOS1.00-8%-31%+18%+4%+1%-3%
CHC1.00+10%-7%-1%+0%+2%+3%
CHW1.00+33%-28%-8%+1%-1%+7%
CIN1.00+28%-26%0%+0%+3%+3%
CLE1.00-10%-42%+5%-3%+7%-2%
COL1.00+8%+51%+1%+18%-14%-1%
DET1.00-6%+47%-6%+3%-8%-2%
HOU1.00+14%+28%-3%0%+6%-2%
KC1.00-10%+25%+3%+4%-11%+1%
LAA1.00-6%-28%-5%+0%-2%-4%
LAD1.00+6%-57%-4%-5%+6%-2%
MIA1.00-22%+54%+6%+4%-7%+6%
MIL1.00+14%-6%+3%-3%+4%+6%
MIN1.00-8%-3%+7%+1%-5%-3%
NYM0.94+23%-37%-6%-4%+5%+3%
NYY1.00+18%-29%-6%0%+3%-2%
OAK1.00+3%-23%+1%-5%-1%+0%
PHI1.00+14%-20%-1%0%+4%-3%
PIT1.00-25%-13%+4%+1%-8%-7%
SD0.57-7%+47%-11%-7%+1%+4%
SEA0.46-4%-14%-3%-2%+5%-3%
SF1.00-18%+19%-1%0%-4%0%
STL1.00-17%-7%-1%-2%-4%+0%
TB1.00-7%+18%-2%-3%+2%+1%
TEX1.00+4%+24%+2%+6%-6%+1%
TOR1.00+15%+36%+11%+1%+2%-1%
WAS1.00-3%-29%-4%+2%-5%-5%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI1.000%+47%+9%+4%-3%+1%
ATL1.00-8%-6%-3%0%+4%+1%
BAL1.00+14%-37%-4%+0%-3%-1%
BOS1.00-27%+15%+25%+6%-5%-2%
CHC1.00-5%-15%-1%+1%+3%+2%
CHW1.00+21%-18%-2%-2%+5%+9%
CIN1.00+24%-28%-7%+2%+2%-2%
CLE1.00+4%-34%+2%+1%-2%+5%
COL1.00+17%+29%-6%+14%-12%-1%
DET1.00-1%+38%-11%+1%-8%-2%
HOU1.00+8%+21%-3%-1%+1%-1%
KC1.00-12%+12%+4%+5%-9%-4%
LAA1.00-11%-22%+2%-2%+2%-5%
LAD1.00+9%-39%-8%-3%+2%0%
MIA0.61-24%+28%+1%-3%-4%0%
MIL1.00+14%+20%-2%0%+4%+4%
MIN1.00-24%+46%-2%-1%-2%-2%
NYM0.72+7%+4%0%-6%+5%+1%
NYY1.00+34%-35%-6%+0%0%+7%
OAK1.00-9%+10%+1%-4%-2%+4%
PHI1.00+20%+2%-2%0%+2%0%
PIT1.00-9%-18%+8%+2%-10%-4%
SD0.37+8%+3%-3%-1%+4%-2%
SEA0.52+1%-29%+1%-1%+2%-4%
SF1.00-27%+58%+9%-3%+4%-7%
STL1.00-10%-22%-8%-1%-5%+4%
TB1.00-2%+22%+1%-3%+2%+0%
TEX1.00+14%+39%-3%+4%-1%-1%
TOR1.00+8%-14%+8%0%+6%-3%
WAS1.00-10%-22%+3%+4%-9%-7%