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%-1%+47%+6%+5%-3%-1%
ATL100%-5%-12%-2%+1%+2%-1%
BAL100%+10%-26%-11%+1%-4%-1%
BOS100%-16%+1%+20%+7%-3%-1%
CHC100%+3%+0%-3%+1%+1%+2%
CHW100%+25%-22%-6%-1%+2%+7%
CIN100%+26%-30%-1%+1%+4%+3%
CLE100%-4%-35%+4%-1%+3%+1%
COL100%+6%+42%+0%+16%-14%-2%
DET100%-4%+55%-7%+1%-7%-1%
HOU100%+10%+22%-3%-1%+4%-1%
KC100%-17%+21%+7%+5%-9%-1%
LAA100%+1%-23%-5%-1%+2%-3%
LAD100%+10%-50%-3%-4%+4%-4%
MIA100%-15%+27%+1%-1%-2%+1%
MIL100%+14%+1%+1%-2%+5%+4%
MIN100%-6%+4%+3%+1%-3%+1%
NYM100%+7%-29%-3%-8%+7%+4%
NYY100%+20%-37%-11%0%+2%+3%
OAK100%-10%+8%+3%-4%-2%-1%
PHI100%+19%-9%-2%0%+3%-1%
PIT100%-17%-15%+6%+1%-8%-3%
SD100%+1%-18%-2%-5%+3%+4%
SEA100%-1%-36%-8%-6%+10%-4%
SF100%-25%+27%+2%-1%-2%-3%
STL100%-14%-15%-4%-1%-6%-2%
TB100%-4%+22%-2%-4%+5%+0%
TEX100%+8%+31%-1%+4%-4%+2%
TOR100%+9%+3%+11%0%+3%-1%
WAS100%0%-25%+1%+2%-5%-3%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+0%+48%+5%+5%-3%-1%
ATL100%-7%-3%+1%+3%0%0%
BAL100%+8%-22%-12%+1%-4%+0%
BOS100%-9%-17%+16%+6%-1%-1%
CHC100%+9%+2%-4%0%+1%+3%
CHW100%+26%-28%-6%+0%+1%+7%
CIN100%+26%-30%+3%+0%+4%+4%
CLE100%-9%-35%+5%-2%+5%+0%
COL100%+5%+38%+2%+17%-14%-3%
DET100%-4%+55%-6%+1%-7%-2%
HOU100%+10%+18%-3%-1%+4%-1%
KC100%-17%+25%+7%+4%-10%-1%
LAA100%+1%-25%-5%0%+1%-2%
LAD100%+10%-53%-3%-4%+4%-5%
MIA100%-17%+26%+4%+1%-2%-1%
MIL100%+11%-5%+3%-3%+5%+4%
MIN100%-5%-6%+6%+2%-3%+1%
NYM100%+11%-34%-7%-9%+8%+5%
NYY100%+15%-28%-11%+0%+2%+1%
OAK100%-9%+6%+2%-4%-2%-1%
PHI100%+18%-8%-2%0%+3%-2%
PIT100%-19%-14%+4%+1%-8%-4%
SD100%+2%-6%-6%-6%+4%+6%
SEA100%+1%-30%-8%-6%+10%-3%
SF100%-24%+16%+0%0%-4%-2%
STL100%-15%-11%-2%-1%-6%-2%
TB100%-7%+20%-3%-4%+5%0%
TEX100%+7%+27%+0%+4%-4%+2%
TOR100%+11%+17%+12%+0%+2%-1%
WAS100%+2%-21%-1%+1%-4%-3%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%-1%+47%+5%+5%-5%0%
ATL100%-2%-9%-5%0%+5%-1%
BAL100%+12%-31%-8%+0%-3%-4%
BOS100%-25%+20%+28%+8%-6%+1%
CHC100%-6%+2%-1%+1%+3%+0%
CHW100%+23%-14%-6%-2%+5%+6%
CIN100%+28%-29%-5%+0%+5%+1%
CLE100%+1%-35%+4%+1%-1%+0%
COL100%+8%+38%-4%+14%-13%-3%
DET100%-4%+60%-9%-1%-6%+1%
HOU100%+9%+28%-3%0%+3%-2%
KC100%-19%+16%+6%+6%-9%-2%
LAA100%-1%-25%-5%-2%+4%-4%
LAD100%+12%-46%-4%-4%+2%-4%
MIA100%-13%+31%-5%-3%-2%+4%
MIL100%+19%+2%-1%-1%+4%+4%
MIN100%-8%+19%-3%+2%-2%+3%
NYM100%+6%-27%0%-8%+6%+4%
NYY100%+29%-46%-11%0%+1%+7%
OAK100%-14%+17%+2%-3%-1%-1%
PHI100%+19%-4%-1%+0%+3%+2%
PIT100%-10%-23%+10%+1%-9%+0%
SD100%-3%-31%+7%-4%+3%+3%
SEA100%-6%-40%-7%-6%+9%-5%
SF100%-27%+37%+4%-2%+0%-5%
STL100%-10%-17%-8%-1%-4%-3%
TB100%-1%+29%-3%-4%+5%-1%
TEX100%+13%+31%-3%+4%-4%+1%
TOR100%+5%-11%+12%0%+4%-2%
WAS100%-5%-27%+5%+4%-7%-5%