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 100%.

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
ARI100%+3%+53%+6%+5%-3%0%
ATL100%-6%-29%+2%+2%0%-1%
BAL100%+12%-29%-10%+1%-4%0%
BOS100%-17%-3%+22%+6%-3%-1%
CHC100%+3%-4%-2%+1%+1%+2%
CHW100%+26%-21%-6%-1%+4%+7%
CIN100%+25%-28%0%0%+5%+2%
CLE100%-5%-35%+5%-1%+3%+1%
COL100%+8%+41%-1%+17%-14%-2%
DET100%-2%+53%-9%+1%-8%-2%
HOU100%+11%+21%-3%-1%+4%-2%
KC100%-16%+20%+6%+4%-9%-2%
LAA100%-2%-27%-4%-1%+2%-3%
LAD100%+8%-52%-4%-4%+4%-4%
MIA100%-21%+33%-1%-2%-2%-1%
MIL100%+14%-3%+1%-2%+4%+4%
MIN100%-8%+8%+3%+1%-4%+0%
NYM100%+10%-30%-4%-8%+7%+1%
NYY100%+20%-37%-12%+0%+2%+3%
OAK100%-8%+6%+2%-4%-2%-1%
PHI100%+19%-12%-2%+0%+3%-2%
PIT100%-17%-16%+6%+1%-8%-3%
SD100%-2%-11%-1%-5%+2%+7%
SEA100%-1%-33%-6%-5%+9%-2%
SF100%-25%+29%+1%-1%-2%-3%
STL100%-14%-14%-4%-1%-6%-1%
TB100%-4%+23%-4%-3%+5%+0%
TEX100%+7%+34%-1%+5%-5%+3%
TOR100%+10%+9%+11%+0%+3%-1%
WAS100%-1%-27%+1%+4%-6%-3%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+5%+55%+5%+5%-3%-1%
ATL100%-11%-22%0%+4%-2%-3%
BAL100%+12%-26%-11%+1%-3%+1%
BOS100%-12%-20%+19%+5%-1%-1%
CHC100%+9%+0%-3%0%+1%+3%
CHW100%+28%-27%-7%+0%+3%+7%
CIN100%+26%-24%+4%-1%+5%+3%
CLE100%-9%-37%+6%-2%+6%0%
COL100%+6%+37%+1%+18%-14%-3%
DET100%-2%+55%-8%+1%-7%-4%
HOU100%+11%+19%-3%0%+4%-2%
KC100%-16%+24%+7%+4%-9%0%
LAA100%-1%-27%-4%-1%+1%-3%
LAD100%+7%-54%-3%-4%+4%-5%
MIA100%-22%+31%+2%-1%-2%-3%
MIL100%+12%-9%+4%-3%+5%+4%
MIN100%-6%-1%+5%+2%-4%+0%
NYM100%+15%-36%-5%-9%+9%+2%
NYY100%+16%-30%-13%+1%+2%+2%
OAK100%-6%+2%+1%-4%-3%-2%
PHI100%+20%-11%-2%+0%+3%-2%
PIT100%-20%-17%+3%+1%-8%-5%
SD100%-2%-3%-4%-6%+2%+11%
SEA100%0%-24%-6%-6%+9%-1%
SF100%-23%+13%-1%0%-4%-2%
STL100%-16%-8%-2%-1%-6%-2%
TB100%-7%+23%-4%-3%+5%+0%
TEX100%+5%+29%+1%+5%-6%+3%
TOR100%+11%+22%+12%+0%+1%0%
WAS100%+0%-24%-2%+4%-5%-3%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+5%+51%+5%+6%-5%0%
ATL100%-5%-19%+2%-1%+2%+0%
BAL100%+11%-29%-6%0%-4%-2%
BOS100%-26%+18%+29%+7%-5%+1%
CHC100%-6%-7%-1%+0%+3%+1%
CHW100%+23%-10%-5%-2%+6%+7%
CIN100%+25%-27%-5%0%+6%+0%
CLE100%0%-34%+4%+1%-1%+0%
COL100%+11%+38%-4%+14%-13%-1%
DET100%-1%+51%-12%-1%-7%-1%
HOU100%+11%+23%-3%0%+3%-1%
KC100%-18%+15%+5%+5%-9%-3%
LAA100%-5%-29%-3%-2%+3%-4%
LAD100%+10%-49%-4%-4%+2%-4%
MIA100%-20%+38%-8%-4%-2%+3%
MIL100%+18%+1%-2%0%+4%+2%
MIN100%-12%+23%-4%+2%-4%+2%
NYM100%+7%-26%-2%-8%+5%+1%
NYY100%+27%-45%-11%+1%+1%+6%
OAK100%-13%+16%+1%-4%-1%-1%
PHI100%+20%-8%+0%+1%+2%+2%
PIT100%-9%-22%+9%+1%-8%-1%
SD100%-8%-24%+8%-5%+2%+4%
SEA100%0%-37%-3%-5%+9%-3%
SF100%-30%+41%+4%-2%+0%-4%
STL100%-9%-15%-7%-1%-5%-1%
TB100%+0%+29%-5%-3%+4%-1%
TEX100%+12%+36%-4%+5%-4%+2%
TOR100%+6%-7%+11%-1%+5%-2%
WAS100%-3%-28%+5%+5%-7%-4%