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%-1%-20%-1%+1%+2%-1%
BAL100%+11%-29%-11%+1%-4%-1%
BOS100%-16%+1%+20%+7%-3%-1%
CHC100%+4%0%-3%+1%+1%+2%
CHW100%+26%-23%-6%-1%+3%+7%
CIN100%+26%-29%-1%+0%+4%+3%
CLE100%-5%-33%+4%-1%+3%+1%
COL100%+7%+42%+0%+16%-14%-3%
DET100%-4%+57%-7%+1%-7%-1%
HOU100%+9%+23%-3%-1%+4%-1%
KC100%-16%+20%+6%+5%-10%-2%
LAA100%+1%-23%-5%-1%+2%-3%
LAD100%+10%-51%-3%-4%+4%-4%
MIA100%-16%+28%+1%-2%-2%-1%
MIL100%+14%-1%+1%-2%+5%+4%
MIN100%-6%+3%+3%+1%-3%+0%
NYM100%+6%-31%-4%-8%+6%+4%
NYY100%+20%-37%-11%0%+2%+3%
OAK100%-10%+9%+3%-4%-2%-1%
PHI100%+19%-8%-2%0%+3%-1%
PIT100%-17%-13%+6%+1%-8%-3%
SD100%-1%-17%-2%-5%+3%+5%
SEA100%0%-36%-6%-6%+9%-3%
SF100%-24%+28%+1%-1%-2%-2%
STL100%-13%-17%-4%-2%-5%-3%
TB100%-5%+21%-2%-4%+5%+0%
TEX100%+8%+30%-1%+5%-4%+2%
TOR100%+9%+4%+11%0%+2%-1%
WAS100%0%-24%+1%+2%-5%-3%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+1%+47%+5%+5%-2%-1%
ATL100%-3%-7%+0%+2%0%-1%
BAL100%+9%-24%-12%+1%-4%+1%
BOS100%-10%-16%+17%+6%-1%-1%
CHC100%+9%+1%-4%+0%+0%+3%
CHW100%+28%-27%-7%0%+1%+7%
CIN100%+26%-30%+4%0%+5%+3%
CLE100%-9%-34%+5%-2%+5%0%
COL100%+5%+38%+3%+17%-14%-3%
DET100%-4%+56%-7%+1%-7%-3%
HOU100%+10%+18%-3%-1%+4%-1%
KC100%-16%+24%+7%+4%-10%-1%
LAA100%+1%-25%-5%-1%+2%-2%
LAD100%+10%-53%-2%-4%+4%-5%
MIA100%-19%+27%+3%+0%-2%-2%
MIL100%+11%-6%+3%-3%+5%+4%
MIN100%-6%-3%+6%+2%-3%+0%
NYM100%+9%-37%-7%-8%+7%+5%
NYY100%+14%-30%-11%+0%+3%+1%
OAK100%-9%+7%+2%-4%-2%-1%
PHI100%+19%-9%-2%0%+3%-3%
PIT100%-20%-13%+4%+1%-7%-5%
SD100%+1%-4%-6%-7%+3%+8%
SEA100%+0%-30%-5%-6%+9%-2%
SF100%-23%+15%-1%+0%-4%-2%
STL100%-14%-11%-3%-1%-6%-2%
TB100%-7%+18%-2%-4%+5%+0%
TEX100%+6%+26%+1%+4%-4%+2%
TOR100%+11%+15%+12%+0%+1%-1%
WAS100%+1%-21%-1%+2%-4%-4%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%+1%+48%+5%+5%-5%0%
ATL100%+0%-17%-2%-1%+5%-2%
BAL100%+13%-32%-7%+1%-4%-3%
BOS100%-25%+22%+28%+8%-6%+1%
CHC100%-5%-1%-2%+1%+3%+1%
CHW100%+24%-17%-6%-2%+5%+7%
CIN100%+28%-23%-5%+0%+5%+0%
CLE100%+1%-33%+3%+1%-1%+0%
COL100%+8%+39%-4%+14%-13%-3%
DET100%-5%+61%-10%-1%-6%+1%
HOU100%+8%+29%-2%0%+3%-2%
KC100%-19%+15%+6%+5%-10%-2%
LAA100%-2%-25%-4%-1%+4%-4%
LAD100%+12%-47%-4%-4%+2%-4%
MIA100%-14%+33%-5%-3%-2%+1%
MIL100%+18%+2%-1%-1%+4%+4%
MIN100%-8%+17%-3%+1%-3%+3%
NYM100%+5%-28%-1%-7%+6%+5%
NYY100%+29%-46%-12%+0%+1%+6%
OAK100%-13%+17%+2%-3%-1%-2%
PHI100%+19%-4%-1%+0%+3%+2%
PIT100%-10%-20%+9%+1%-9%0%
SD100%-6%-32%+6%-4%+2%+3%
SEA100%-3%-38%-6%-6%+8%-5%
SF100%-28%+36%+4%-2%+1%-5%
STL100%-10%-20%-7%-2%-4%-3%
TB100%-1%+26%-3%-4%+5%-1%
TEX100%+12%+30%-3%+5%-4%+2%
TOR100%+5%-10%+11%-1%+4%-1%
WAS100%-4%-26%+5%+4%-7%-4%