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%-2%+48%+6%+5%-3%-1%
ATL100%-5%-14%-1%+1%+2%-1%
BAL100%+11%-25%-10%+1%-4%-2%
BOS100%-17%0%+20%+6%-3%0%
CHC100%+3%+1%-3%0%+1%+2%
CHW100%+24%-22%-6%-1%+2%+6%
CIN100%+27%-30%-1%+1%+4%+3%
CLE100%-5%-35%+4%-1%+3%+1%
COL100%+6%+42%+0%+16%-13%-2%
DET100%-4%+55%-7%+1%-7%-1%
HOU100%+10%+21%-2%-1%+4%-2%
KC100%-16%+23%+7%+5%-9%-1%
LAA100%+1%-22%-5%-1%+2%-3%
LAD100%+12%-50%-3%-4%+4%-4%
MIA100%-15%+28%+1%-1%-1%+1%
MIL100%+14%+0%+1%-2%+6%+3%
MIN100%-6%+3%+4%+2%-3%+1%
NYM100%+7%-28%-4%-8%+7%+4%
NYY100%+20%-33%-11%-1%+2%+3%
OAK100%-10%+6%+3%-3%-2%+0%
PHI100%+18%-10%-2%+0%+3%-1%
PIT100%-17%-14%+7%+1%-8%-3%
SD100%+3%-17%-3%-5%+4%+4%
SEA100%0%-37%-5%-6%+10%-2%
SF100%-24%+26%+2%-1%-2%-3%
STL100%-15%-17%-3%-1%-6%-3%
TB100%-4%+21%-3%-3%+4%+0%
TEX100%+6%+29%-1%+4%-4%+2%
TOR100%+10%+3%+11%0%+3%-1%
WAS100%-1%-23%+0%+2%-5%-3%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
CIN100%+26%-30%+2%+0%+4%+3%
CHW100%+26%-27%-6%+0%+1%+6%
PHI100%+18%-10%-2%0%+3%-2%
NYY100%+16%-26%-11%0%+2%+1%
MIL100%+12%-5%+3%-3%+6%+4%
TOR100%+12%+16%+12%+0%+1%-1%
LAD100%+12%-54%-3%-4%+4%-5%
HOU100%+11%+19%-2%-1%+4%-1%
NYM100%+10%-34%-8%-8%+7%+5%
CHC100%+9%+1%-4%-1%+1%+3%
BAL100%+9%-20%-11%+1%-3%0%
TEX100%+5%+25%+1%+3%-4%+2%
COL100%+4%+39%+2%+17%-13%-3%
SD100%+2%-8%-6%-6%+4%+5%
SEA100%+2%-31%-5%-6%+10%-1%
LAA100%+1%-24%-5%0%+1%-2%
WAS100%+1%-19%-1%+1%-3%-3%
ARI100%0%+50%+5%+5%-3%-1%
DET100%-3%+52%-6%+1%-7%-3%
TB100%-6%+19%-3%-3%+4%+0%
MIN100%-6%-5%+6%+2%-3%+1%
ATL100%-6%-1%+2%+3%+0%+0%
OAK100%-9%+4%+2%-3%-2%-1%
CLE100%-9%-35%+5%-2%+5%+0%
BOS100%-11%-17%+15%+6%-1%-1%
STL100%-16%-11%-1%-1%-6%-2%
KC100%-16%+27%+7%+4%-9%-1%
MIA100%-17%+30%+4%+0%-1%0%
PIT100%-20%-14%+4%+1%-8%-4%
SF100%-24%+16%+0%0%-4%-2%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
CIN100%+29%-31%-5%+0%+5%+1%
NYY100%+27%-42%-11%0%+0%+8%
CHW100%+23%-14%-6%-2%+5%+6%
MIL100%+19%+3%-1%-1%+5%+3%
PHI100%+18%-4%-1%+1%+3%+1%
BAL100%+12%-29%-7%+1%-4%-4%
LAD100%+12%-45%-4%-4%+2%-4%
TEX100%+11%+29%-3%+4%-4%+1%
HOU100%+10%+25%-3%+0%+4%-2%
COL100%+8%+38%-4%+14%-13%-2%
TOR100%+6%-11%+11%0%+5%-1%
NYM100%+5%-26%-1%-7%+6%+5%
SD100%+1%-28%+5%-5%+3%+5%
CLE100%+1%-36%+3%+1%-1%+0%
LAA100%0%-24%-5%-2%+4%-5%
TB100%-1%+26%-4%-3%+4%-1%
ARI100%-2%+47%+5%+5%-5%-1%
DET100%-3%+63%-10%0%-6%+1%
ATL100%-3%-12%-4%0%+5%0%
SEA100%-4%-40%-4%-6%+10%-4%
WAS100%-5%-25%+4%+4%-6%-4%
CHC100%-6%+4%-2%+0%+3%+1%
MIN100%-10%+17%-3%+2%-3%+3%
PIT100%-10%-22%+11%+1%-9%0%
STL100%-11%-19%-7%-2%-4%-3%
MIA100%-13%+28%-5%-2%-2%+3%
OAK100%-13%+15%+3%-3%-1%-1%
KC100%-19%+18%+6%+6%-9%-1%
BOS100%-25%+18%+28%+7%-6%+1%
SF100%-26%+35%+4%-2%+0%-5%