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%+51%+7%+5%-3%-1%
ATL100%-6%-25%+3%+2%-1%-1%
BAL100%+12%-29%-10%+1%-4%+0%
BOS100%-17%-3%+22%+6%-2%-1%
CHC100%+4%-3%-2%+0%+1%+3%
CHW100%+26%-21%-6%-1%+4%+7%
CIN100%+25%-28%0%0%+5%+2%
CLE100%-4%-35%+5%-1%+3%+1%
COL100%+8%+42%-1%+17%-13%-2%
DET100%-2%+54%-8%+1%-8%-2%
HOU100%+11%+21%-3%-1%+4%-2%
KC100%-16%+20%+7%+5%-9%-2%
LAA100%-2%-26%-4%-1%+2%-3%
LAD100%+8%-53%-4%-4%+4%-4%
MIA100%-21%+33%-1%-2%-2%-1%
MIL100%+14%-3%+1%-2%+4%+3%
MIN100%-8%+8%+3%+1%-4%+0%
NYM100%+10%-31%-4%-8%+7%+1%
NYY100%+20%-38%-12%0%+2%+3%
OAK100%-8%+6%+2%-4%-2%-1%
PHI100%+19%-12%-2%+0%+3%-1%
PIT100%-17%-16%+6%+1%-8%-3%
SD100%-1%-12%-2%-6%+3%+6%
SEA100%-1%-33%-6%-5%+9%-1%
SF100%-25%+29%+1%-1%-2%-2%
STL100%-14%-13%-4%-1%-6%-1%
TB100%-5%+23%-3%-3%+5%0%
TEX100%+7%+33%-1%+5%-5%+2%
TOR100%+10%+9%+11%+0%+2%-1%
WAS100%+0%-27%+1%+4%-6%-3%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+5%+55%+5%+5%-3%-1%
ATL100%-12%-16%+2%+4%-3%-1%
BAL100%+13%-26%-11%+1%-4%+2%
BOS100%-12%-20%+19%+5%-1%-1%
CHC100%+9%+0%-3%0%+1%+3%
CHW100%+28%-27%-7%0%+3%+7%
CIN100%+27%-24%+4%-1%+5%+3%
CLE100%-8%-37%+6%-2%+6%0%
COL100%+6%+37%+2%+17%-14%-3%
DET100%-2%+55%-7%+1%-7%-4%
HOU100%+11%+18%-4%0%+4%-2%
KC100%-16%+24%+7%+4%-9%0%
LAA100%-1%-27%-4%-1%+1%-2%
LAD100%+7%-54%-3%-4%+4%-5%
MIA100%-22%+31%+1%-1%-2%-4%
MIL100%+12%-9%+4%-2%+4%+4%
MIN100%-7%-1%+5%+2%-4%+0%
NYM100%+14%-36%-5%-9%+9%+2%
NYY100%+16%-32%-14%+1%+3%+2%
OAK100%-6%+4%+1%-4%-3%-2%
PHI100%+19%-11%-2%+0%+3%-2%
PIT100%-20%-17%+3%+1%-8%-5%
SD100%-1%-5%-4%-7%+3%+11%
SEA100%0%-23%-7%-6%+9%-1%
SF100%-23%+13%-1%0%-4%-2%
STL100%-16%-8%-2%-1%-6%-2%
TB100%-7%+23%-4%-4%+5%0%
TEX100%+5%+28%+1%+5%-6%+2%
TOR100%+11%+21%+12%+1%+1%0%
WAS100%+1%-24%-2%+3%-5%-3%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+4%+50%+5%+6%-5%0%
ATL100%-2%-20%+3%0%+1%-1%
BAL100%+11%-29%-6%+0%-4%-2%
BOS100%-26%+18%+29%+7%-5%+1%
CHC100%-6%-5%-1%+0%+3%+2%
CHW100%+23%-11%-5%-2%+6%+7%
CIN100%+25%-26%-5%0%+6%+0%
CLE100%0%-34%+4%+1%-2%+0%
COL100%+11%+39%-4%+14%-13%-2%
DET100%-1%+54%-11%0%-7%-1%
HOU100%+11%+24%-3%0%+3%-1%
KC100%-18%+14%+6%+6%-9%-3%
LAA100%-5%-29%-4%-2%+3%-4%
LAD100%+10%-49%-4%-4%+2%-4%
MIA100%-20%+39%-9%-4%-2%+2%
MIL100%+18%+1%-2%0%+4%+2%
MIN100%-11%+24%-4%+1%-3%+3%
NYM100%+7%-28%-3%-8%+5%+0%
NYY100%+27%-46%-11%+1%+1%+7%
OAK100%-13%+15%+0%-3%-1%-1%
PHI100%+19%-8%0%+1%+2%+2%
PIT100%-9%-23%+9%+1%-8%-1%
SD100%-5%-24%+8%-5%+3%+3%
SEA100%0%-38%-4%-5%+9%-2%
SF100%-30%+40%+4%-3%+0%-4%
STL100%-10%-15%-7%-1%-5%-1%
TB100%0%+29%-4%-3%+4%-2%
TEX100%+13%+35%-4%+5%-4%+2%
TOR100%+6%-7%+11%0%+5%-2%
WAS100%-3%-27%+5%+4%-7%-4%