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%+5%+50%+7%+5%-3%-1%
ATL100%-7%-9%-4%-1%+2%+1%
BAL100%+12%-30%-10%+1%-4%+0%
BOS100%-17%-3%+21%+6%-3%-2%
CHC100%+6%-6%-2%+1%+2%+2%
CHW100%+26%-17%-5%-1%+4%+8%
CIN100%+24%-27%-1%-1%+4%+2%
CLE100%-6%-36%+5%0%+3%+1%
COL100%+9%+38%-1%+17%-14%-2%
DET100%-1%+48%-9%+1%-7%-2%
FA0%0%0%0%0%0%0%
HOU100%+11%+24%-3%-1%+4%-2%
KC100%-15%+22%+6%+4%-8%-1%
LAA100%-5%-27%-4%-1%+2%-4%
LAD100%+7%-51%-3%-5%+4%-4%
MIA100%-21%+25%-1%-2%-2%0%
MIL100%+15%-3%+1%-1%+4%+4%
MIN100%-8%+6%+1%+2%-5%-2%
NYM100%+9%-29%-2%-8%+7%+3%
NYY100%+25%-41%-11%+0%+3%+5%
OAK100%-8%+8%+1%-4%-2%-1%
PHI100%+19%-13%-1%+0%+3%-2%
PIT100%-18%-15%+4%+1%-8%-5%
SD100%-3%-4%-4%-4%+3%+5%
SEA100%+0%-32%-4%-5%+8%0%
SF100%-25%+28%+1%-1%-2%-2%
STL100%-14%-15%-3%-1%-6%-1%
TB100%-4%+23%-4%-3%+4%+0%
TEX100%+9%+30%-1%+5%-4%+2%
TOR100%+10%+10%+12%+0%+3%-1%
WAS100%-3%-28%0%+3%-6%-4%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+7%+53%+6%+5%-3%-2%
ATL100%-5%-10%-4%0%+2%+1%
BAL100%+12%-25%-11%+1%-3%+1%
BOS100%-12%-21%+19%+6%-2%-2%
CHC100%+12%-1%-3%0%+1%+3%
CHW100%+28%-22%-7%+0%+2%+8%
CIN100%+26%-22%+3%-1%+5%+3%
CLE100%-11%-39%+6%-2%+6%0%
COL100%+7%+35%+1%+17%-14%-2%
DET100%-1%+49%-8%+1%-7%-3%
FA0%0%0%0%0%0%0%
HOU100%+11%+25%-3%-1%+4%-2%
KC100%-15%+24%+7%+3%-8%+0%
LAA100%-3%-29%-5%-1%+1%-4%
LAD100%+6%-54%-2%-5%+4%-4%
MIA100%-22%+22%+2%-1%-3%-3%
MIL100%+12%-10%+4%-2%+4%+4%
MIN100%-5%+1%+2%+4%-6%-2%
NYM100%+14%-35%-7%-7%+8%+4%
NYY100%+20%-38%-13%+0%+3%+4%
OAK100%-6%+5%+0%-4%-3%-2%
PHI100%+20%-14%-1%+0%+4%-3%
PIT100%-21%-15%+2%+1%-8%-6%
SD100%-5%+8%-6%-6%+3%+10%
SEA100%+0%-26%-5%-6%+9%+1%
SF100%-23%+13%-1%+0%-5%-1%
STL100%-16%-10%-2%-1%-6%-1%
TB100%-7%+26%-5%-3%+4%0%
TEX100%+7%+24%+1%+5%-5%+2%
TOR100%+12%+22%+14%+1%+1%+0%
WAS100%-3%-23%-2%+3%-5%-4%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+7%+46%+6%+6%-5%0%
ATL100%-7%-10%-5%-1%+3%+3%
BAL100%+11%-32%-7%0%-4%-2%
BOS100%-26%+21%+28%+8%-5%+0%
CHC100%-4%-11%0%+0%+3%+1%
CHW100%+21%-7%-3%-2%+6%+8%
CIN100%+23%-26%-4%-1%+5%+0%
CLE100%0%-34%+4%+1%-2%+1%
COL100%+11%+36%-4%+14%-15%-1%
DET100%+0%+45%-12%0%-7%-2%
FA0%0%0%0%0%0%0%
HOU100%+10%+22%-3%0%+3%-1%
KC100%-17%+19%+5%+5%-9%-2%
LAA100%-8%-29%-3%-1%+4%-5%
LAD100%+11%-46%-4%-4%+2%-3%
MIA100%-18%+29%-9%-2%-2%+0%
MIL100%+20%+4%-1%+0%+4%+3%
MIN100%-14%+20%-5%+2%-5%0%
NYM100%+6%-21%+2%-9%+5%+3%
NYY100%+31%-44%-10%+1%+1%+8%
OAK100%-13%+20%0%-3%-2%-1%
PHI100%+19%-8%-1%+1%+1%+2%
PIT100%-9%-23%+7%+1%-8%-2%
SD100%-5%-20%+6%-4%+4%+4%
SEA100%+3%-39%0%-5%+7%-3%
SF100%-31%+39%+4%-2%0%-5%
STL100%-9%-15%-5%0%-5%-1%
TB100%+1%+26%-4%-3%+3%-1%
TEX100%+14%+32%-4%+4%-3%+1%
TOR100%+5%-7%+12%0%+6%-2%
WAS100%-5%-29%+2%+3%-7%-6%