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%+51%+7%+5%-4%0%
ATL100%-7%-10%-4%-1%+2%+1%
BAL100%+12%-30%-10%+1%-3%+0%
BOS100%-17%-3%+21%+6%-3%-2%
CHC100%+5%-6%-2%+1%+1%+2%
CHW100%+25%-18%-6%-1%+4%+7%
CIN100%+25%-25%-1%-1%+5%+2%
CLE100%-6%-36%+5%-1%+3%+1%
COL100%+9%+39%0%+17%-14%-2%
DET100%-2%+47%-8%+1%-7%-2%
FA0%0%0%0%0%0%0%
HOU100%+11%+23%-3%-1%+4%-1%
KC100%-15%+22%+6%+4%-9%-1%
LAA100%-4%-27%-4%-1%+2%-4%
LAD100%+7%-51%-3%-5%+4%-4%
MIA100%-22%+27%-1%-3%-2%+0%
MIL100%+15%-2%+1%-2%+4%+4%
MIN100%-7%+6%+1%+2%-5%-2%
NYM100%+11%-26%-5%-8%+6%+2%
NYY100%+25%-39%-11%+1%+2%+5%
OAK100%-8%+6%+2%-4%-2%-1%
PHI100%+20%-14%-1%+0%+3%-2%
PIT100%-18%-15%+4%+1%-8%-4%
SD100%-5%-8%-1%-4%+2%+6%
SEA100%+1%-30%-5%-5%+9%-1%
SF100%-25%+28%+1%-1%-3%-2%
STL100%-14%-15%-3%-1%-5%-1%
TB100%-4%+23%-4%-3%+4%+0%
TEX100%+9%+33%-1%+5%-4%+2%
TOR100%+9%+10%+12%+0%+3%-1%
WAS100%-2%-28%+0%+4%-6%-4%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+7%+54%+5%+5%-3%-1%
ATL100%-5%-11%-4%0%+2%+1%
BAL100%+11%-26%-12%+1%-3%+1%
BOS100%-12%-20%+19%+5%-1%-2%
CHC100%+12%-2%-4%+0%+1%+3%
CHW100%+28%-23%-7%+0%+3%+7%
CIN100%+27%-21%+3%-1%+5%+3%
CLE100%-11%-38%+6%-2%+6%0%
COL100%+7%+36%+2%+17%-14%-2%
DET100%-2%+47%-7%+1%-7%-3%
FA0%0%0%0%0%0%0%
HOU100%+11%+23%-3%-1%+4%-1%
KC100%-14%+25%+7%+4%-9%+0%
LAA100%-2%-28%-5%-1%+1%-3%
LAD100%+6%-54%-2%-4%+4%-4%
MIA100%-25%+23%+2%-1%-3%-2%
MIL100%+12%-9%+4%-2%+4%+4%
MIN100%-5%-3%+3%+4%-6%-2%
NYM100%+16%-31%-8%-8%+8%+3%
NYY100%+20%-33%-13%+1%+2%+4%
OAK100%-6%+3%+1%-4%-2%-2%
PHI100%+20%-13%0%+0%+4%-3%
PIT100%-21%-16%+2%+1%-8%-5%
SD100%-6%+1%-4%-6%+3%+10%
SEA100%+0%-18%-6%-6%+10%-1%
SF100%-23%+13%-1%+0%-5%-1%
STL100%-17%-8%-1%-1%-6%-2%
TB100%-7%+22%-5%-3%+5%-1%
TEX100%+6%+27%+1%+5%-6%+2%
TOR100%+12%+23%+13%+1%+1%+0%
WAS100%-1%-24%-2%+4%-5%-4%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+6%+45%+6%+6%-5%+0%
ATL100%-7%-11%-4%-1%+3%+3%
BAL100%+10%-32%-6%0%-4%-1%
BOS100%-26%+18%+28%+7%-5%+0%
CHC100%-4%-10%-1%+1%+3%+1%
CHW100%+21%-8%-4%-2%+6%+7%
CIN100%+24%-24%-5%-1%+6%+0%
CLE100%0%-34%+4%+1%-2%+0%
COL100%+11%+37%-3%+14%-14%-1%
DET100%-2%+44%-11%-1%-7%-2%
FA0%0%0%0%0%0%0%
HOU100%+10%+23%-3%0%+3%-1%
KC100%-17%+18%+5%+5%-9%-2%
LAA100%-7%-29%-3%-1%+4%-5%
LAD100%+11%-46%-4%-4%+2%-4%
MIA100%-19%+36%-9%-4%+0%+2%
MIL100%+20%+4%-2%+0%+4%+3%
MIN100%-12%+24%-5%+2%-4%0%
NYM100%+7%-23%-1%-8%+5%+3%
NYY100%+32%-44%-10%+2%+0%+8%
OAK100%-13%+19%+0%-3%-2%-1%
PHI100%+19%-8%0%+1%+1%+1%
PIT100%-8%-22%+6%+1%-8%-2%
SD100%-8%-21%+9%-4%+1%+5%
SEA100%+4%-40%0%-5%+8%-2%
SF100%-30%+40%+5%-2%0%-5%
STL100%-9%-17%-6%-1%-5%-1%
TB100%+1%+30%-5%-3%+4%-1%
TEX100%+14%+35%-4%+5%-3%+1%
TOR100%+5%-8%+12%0%+5%-2%
WAS100%-5%-29%+4%+4%-7%-6%