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%+0%+48%+7%+5%-3%-1%
ATL100%-5%-21%-1%+1%+2%+0%
BAL100%+12%-28%-10%+1%-3%+0%
BOS100%-15%-2%+21%+6%-3%-1%
CHC100%+4%-4%-3%+1%+1%+2%
CHW100%+27%-21%-6%-1%+3%+7%
CIN100%+25%-28%0%+0%+5%+2%
CLE100%-4%-34%+4%-1%+3%+1%
COL100%+8%+41%0%+16%-14%-3%
DET100%-4%+57%-7%+1%-7%-1%
HOU100%+10%+22%-3%-1%+4%-1%
KC100%-17%+20%+7%+5%-9%-2%
LAA100%-1%-25%-4%-1%+2%-3%
LAD100%+10%-51%-3%-4%+4%-4%
MIA100%-18%+35%-1%-2%-1%-1%
MIL100%+14%-1%+1%-2%+4%+4%
MIN100%-7%+1%+3%+1%-3%+1%
NYM100%+7%-33%-4%-8%+7%+3%
NYY100%+20%-38%-11%-1%+3%+3%
OAK100%-9%+6%+2%-4%-2%-1%
PHI100%+19%-12%-2%+0%+3%-1%
PIT100%-17%-13%+6%+1%-8%-3%
SD100%-2%-16%-2%-6%+3%+6%
SEA100%-2%-31%-6%-5%+8%-2%
SF100%-25%+29%+1%-1%-2%-2%
STL100%-14%-14%-4%-1%-6%-2%
TB100%-5%+22%-3%-4%+5%+0%
TEX100%+6%+31%-1%+5%-5%+2%
TOR100%+10%+7%+11%+0%+2%-2%
WAS100%+1%-27%+1%+2%-5%-4%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+2%+51%+6%+5%-2%-1%
ATL100%-6%-8%0%+2%-1%+1%
BAL100%+11%-24%-12%+1%-3%+2%
BOS100%-10%-20%+18%+6%-1%-1%
CHC100%+9%0%-4%+0%+0%+3%
CHW100%+29%-26%-7%0%+2%+7%
CIN100%+25%-28%+5%0%+5%+3%
CLE100%-8%-37%+6%-2%+5%+0%
COL100%+6%+37%+2%+17%-14%-3%
DET100%-4%+59%-7%+2%-7%-3%
HOU100%+10%+20%-4%-1%+4%-1%
KC100%-17%+22%+7%+4%-9%-1%
LAA100%0%-26%-4%-1%+1%-2%
LAD100%+10%-53%-3%-4%+4%-5%
MIA100%-20%+30%+1%-1%-1%-3%
MIL100%+12%-7%+3%-3%+5%+4%
MIN100%-7%-4%+6%+1%-4%+0%
NYM100%+11%-37%-6%-8%+7%+3%
NYY100%+15%-30%-12%0%+3%+1%
OAK100%-7%+4%+1%-4%-3%-1%
PHI100%+19%-11%-2%+0%+3%-2%
PIT100%-20%-14%+3%+1%-8%-4%
SD100%-1%-9%-5%-7%+3%+10%
SEA100%-1%-22%-5%-6%+9%-2%
SF100%-24%+16%-1%+0%-4%-2%
STL100%-16%-8%-2%-1%-6%-2%
TB100%-7%+21%-3%-4%+5%+0%
TEX100%+5%+27%+1%+5%-5%+2%
TOR100%+12%+18%+12%+1%+1%-1%
WAS100%+3%-24%-2%+2%-4%-4%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+2%+47%+6%+5%-5%0%
ATL100%-4%-16%+0%0%+5%0%
BAL100%+11%-29%-6%+0%-3%-2%
BOS100%-25%+19%+28%+8%-5%+0%
CHC100%-5%-5%-2%+1%+2%+1%
CHW100%+26%-14%-6%-3%+6%+7%
CIN100%+26%-29%-5%+0%+5%+0%
CLE100%+0%-33%+4%+1%-1%+0%
COL100%+11%+38%-5%+14%-13%-3%
DET100%-5%+58%-9%-1%-6%+1%
HOU100%+9%+25%-3%0%+3%-1%
KC100%-19%+15%+6%+6%-9%-4%
LAA100%-3%-28%-4%-2%+3%-3%
LAD100%+12%-47%-4%-4%+2%-4%
MIA100%-17%+47%-8%-4%-2%+2%
MIL100%+18%-1%-1%-1%+4%+3%
MIN100%-8%+15%-4%+1%-2%+3%
NYM100%+5%-31%-2%-7%+6%+4%
NYY100%+28%-46%-12%+0%+1%+7%
OAK100%-13%+15%+1%-3%-1%-2%
PHI100%+18%-7%-1%+0%+2%+2%
PIT100%-9%-19%+9%+1%-8%0%
SD100%-5%-24%+6%-5%+2%+4%
SEA100%-2%-34%-5%-6%+9%-3%
SF100%-29%+40%+4%-2%+0%-4%
STL100%-10%-16%-7%-2%-4%-3%
TB100%0%+28%-4%-3%+4%-1%
TEX100%+12%+32%-3%+5%-4%+2%
TOR100%+5%-8%+12%0%+4%-2%
WAS100%-3%-27%+5%+4%-6%-5%