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%+4%-3%0%
ATL100%-3%-15%-2%+1%+2%-2%
BAL100%+10%-27%-10%+1%-4%-1%
BOS100%-16%+1%+20%+7%-3%-1%
CHC100%+3%-1%-3%+1%+1%+2%
CHW100%+26%-22%-7%-1%+3%+7%
CIN100%+26%-30%-1%+0%+4%+3%
CLE100%-4%-35%+4%-1%+3%+1%
COL100%+6%+43%+0%+16%-14%-3%
DET100%-5%+55%-7%+1%-7%-1%
HOU100%+10%+23%-3%-1%+4%-1%
KC100%-16%+21%+7%+5%-9%-1%
LAA100%+1%-23%-5%-1%+2%-3%
LAD100%+11%-51%-3%-4%+4%-4%
MIA100%-16%+29%+0%-1%-2%+1%
MIL100%+13%+0%+1%-2%+5%+4%
MIN100%-6%+4%+3%+1%-3%+0%
NYM100%+7%-30%-3%-8%+7%+4%
NYY100%+20%-37%-10%0%+2%+3%
OAK100%-10%+8%+3%-4%-2%-1%
PHI100%+18%-9%-2%0%+3%-1%
PIT100%-17%-14%+6%+1%-8%-3%
SD100%+1%-17%-2%-5%+3%+4%
SEA100%-1%-37%-7%-6%+9%-4%
SF100%-25%+27%+1%-1%-2%-2%
STL100%-13%-16%-4%-1%-5%-2%
TB100%-4%+22%-3%-4%+5%+0%
TEX100%+8%+30%-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
CHW100%+27%-27%-6%+0%+1%+7%
CIN100%+25%-30%+3%+0%+4%+4%
PHI100%+18%-8%-2%0%+3%-2%
NYY100%+15%-28%-10%0%+3%+1%
TOR100%+11%+17%+12%+0%+1%-1%
HOU100%+11%+19%-3%-1%+4%-1%
MIL100%+11%-5%+3%-3%+5%+4%
LAD100%+11%-54%-3%-4%+4%-5%
NYM100%+11%-35%-7%-9%+8%+5%
CHC100%+9%+1%-4%+0%+1%+3%
BAL100%+8%-23%-12%+1%-4%+0%
TEX100%+6%+27%+1%+4%-4%+2%
COL100%+5%+39%+3%+17%-14%-3%
WAS100%+2%-21%-1%+1%-4%-3%
SD100%+2%-5%-6%-6%+3%+7%
SEA100%+2%-32%-7%-6%+10%-2%
LAA100%+1%-25%-5%0%+1%-2%
ARI100%+1%+50%+5%+5%-2%-1%
ATL100%-4%-5%+1%+2%+0%-1%
DET100%-4%+56%-6%+2%-7%-2%
MIN100%-6%-5%+6%+2%-3%+1%
TB100%-7%+21%-3%-4%+5%0%
CLE100%-8%-35%+5%-2%+5%+0%
OAK100%-9%+6%+2%-4%-2%-1%
BOS100%-10%-17%+16%+6%-1%-1%
STL100%-15%-11%-2%-1%-6%-3%
KC100%-16%+24%+7%+5%-10%-1%
MIA100%-18%+27%+3%+0%-2%-1%
PIT100%-20%-14%+3%+1%-8%-5%
SF100%-24%+16%0%0%-4%-1%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
NYY100%+29%-46%-11%+0%+1%+6%
CIN100%+28%-29%-5%+0%+5%+1%
CHW100%+24%-14%-7%-2%+5%+7%
PHI100%+19%-4%-1%+0%+3%+2%
MIL100%+19%+2%-1%-1%+4%+4%
BAL100%+13%-31%-7%+0%-3%-4%
TEX100%+12%+29%-3%+4%-4%+1%
LAD100%+12%-46%-4%-4%+2%-4%
HOU100%+9%+29%-3%0%+3%-2%
COL100%+8%+39%-4%+14%-13%-3%
NYM100%+6%-28%0%-8%+6%+5%
TOR100%+5%-11%+12%0%+4%-1%
CLE100%+1%-35%+4%+1%-1%+0%
ARI100%0%+48%+5%+5%-5%0%
ATL100%0%-11%-4%+0%+5%-1%
TB100%-1%+28%-3%-4%+5%-1%
LAA100%-1%-25%-5%-1%+4%-4%
SD100%-4%-29%+8%-5%+2%+3%
DET100%-5%+59%-9%0%-6%+1%
SEA100%-5%-40%-5%-6%+9%-5%
WAS100%-6%-28%+5%+4%-7%-4%
CHC100%-6%+1%-1%+1%+3%+1%
MIN100%-9%+19%-3%+2%-2%+3%
STL100%-10%-17%-8%-2%-4%-3%
PIT100%-10%-21%+10%+1%-9%0%
OAK100%-14%+18%+2%-3%-2%-1%
MIA100%-14%+35%-6%-3%-2%+4%
KC100%-18%+16%+6%+6%-9%-2%
BOS100%-25%+21%+28%+8%-6%+1%
SF100%-27%+37%+4%-2%+0%-5%