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%-2%+48%+6%+4%-3%-1%
ATL100%-5%-13%-1%+1%+2%-1%
BAL100%+10%-25%-10%+1%-3%-2%
BOS100%-16%+0%+20%+6%-3%0%
CHC100%+3%+1%-3%0%+1%+2%
CHW100%+24%-22%-6%-1%+2%+6%
CIN100%+27%-30%-1%+1%+4%+3%
CLE100%-5%-35%+4%-1%+3%+1%
COL100%+6%+43%+1%+16%-13%-2%
DET100%-4%+55%-7%+1%-7%-1%
HOU100%+10%+21%-2%-1%+4%-1%
KC100%-16%+23%+7%+5%-9%-1%
LAA100%+1%-22%-5%-1%+2%-3%
LAD100%+12%-50%-3%-4%+4%-4%
MIA100%-15%+27%+2%-1%-1%+1%
MIL100%+14%+0%+1%-2%+6%+4%
MIN100%-6%+3%+4%+2%-3%+1%
NYM100%+6%-29%-4%-8%+7%+4%
NYY100%+19%-32%-10%-1%+2%+3%
OAK100%-10%+6%+3%-3%-2%0%
PHI100%+18%-10%-2%+0%+3%-1%
PIT100%-17%-14%+7%+1%-8%-3%
SD100%+3%-17%-3%-6%+4%+4%
SEA100%0%-37%-5%-6%+10%-2%
SF100%-24%+26%+2%-1%-2%-3%
STL100%-14%-18%-3%-1%-6%-3%
TB100%-4%+20%-3%-3%+4%+0%
TEX100%+7%+28%-1%+4%-4%+2%
TOR100%+10%+3%+11%+0%+2%-1%
WAS100%-1%-24%+0%+2%-5%-3%

Right-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%0%+50%+5%+5%-3%-1%
ATL100%-6%-1%+2%+2%+0%+0%
BAL100%+8%-21%-12%+1%-3%0%
BOS100%-11%-17%+15%+6%-1%-1%
CHC100%+9%+1%-4%-1%+1%+3%
CHW100%+26%-27%-6%+0%+1%+6%
CIN100%+26%-29%+3%+0%+4%+3%
CLE100%-9%-34%+5%-2%+5%+0%
COL100%+4%+39%+2%+17%-13%-3%
DET100%-3%+51%-6%+1%-7%-3%
HOU100%+11%+19%-2%-1%+4%-1%
KC100%-16%+26%+7%+4%-9%-1%
LAA100%+1%-23%-5%0%+1%-3%
LAD100%+12%-54%-3%-4%+4%-5%
MIA100%-17%+30%+5%+0%-1%0%
MIL100%+12%-6%+3%-3%+6%+4%
MIN100%-6%-4%+6%+2%-3%+1%
NYM100%+10%-34%-8%-8%+8%+5%
NYY100%+15%-24%-11%0%+2%+1%
OAK100%-9%+4%+2%-3%-3%-1%
PHI100%+18%-10%-2%0%+3%-2%
PIT100%-20%-14%+4%+1%-8%-4%
SD100%+2%-8%-6%-6%+4%+5%
SEA100%+2%-30%-5%-6%+10%-1%
SF100%-24%+17%0%0%-4%-2%
STL100%-16%-12%-2%-1%-6%-3%
TB100%-5%+20%-3%-3%+4%+0%
TEX100%+5%+24%+1%+4%-4%+2%
TOR100%+12%+17%+12%+0%+1%-1%
WAS100%+1%-20%-1%+1%-3%-3%

Left-Handed Batters

Team Weight HR 3B 2B Avg SO BB
ARI100%-2%+48%+5%+5%-5%-1%
ATL100%-4%-12%-4%-1%+5%0%
BAL100%+12%-30%-7%+1%-4%-4%
BOS100%-25%+19%+28%+7%-7%+1%
CHC100%-6%+5%-2%+0%+3%+1%
CHW100%+23%-13%-6%-2%+5%+6%
CIN100%+29%-31%-5%+0%+4%+1%
CLE100%+0%-36%+3%+1%-1%+0%
COL100%+8%+38%-3%+14%-13%-2%
DET100%-3%+66%-10%0%-5%+1%
HOU100%+9%+24%-3%+0%+3%-2%
KC100%-19%+18%+6%+5%-9%-1%
LAA100%-1%-24%-4%-2%+4%-4%
LAD100%+12%-46%-4%-4%+3%-4%
MIA100%-12%+27%-5%-2%-2%+3%
MIL100%+18%+3%-1%-1%+5%+3%
MIN100%-9%+16%-3%+2%-3%+3%
NYM100%+5%-27%-1%-7%+6%+4%
NYY100%+26%-41%-10%+0%+1%+7%
OAK100%-13%+15%+3%-3%-1%-1%
PHI100%+18%-4%-1%+1%+3%+2%
PIT100%-10%-22%+11%+2%-9%0%
SD100%+1%-27%+5%-5%+3%+5%
SEA100%-4%-41%-4%-6%+10%-4%
SF100%-26%+34%+4%-3%+0%-5%
STL100%-11%-19%-7%-1%-4%-3%
TB100%0%+26%-3%-4%+4%-1%
TEX100%+11%+29%-4%+4%-3%+1%
TOR100%+6%-11%+11%0%+5%-2%
WAS100%-5%-25%+3%+4%-6%-4%