Rested (2+ days off)
+20%
19 yes / 431 no · 98 HRs
≥1 career HR vs this pitcher
−19%
50 yes / 401 no · 98 HRs
Vs. hittable pitcher (BAA > .260)
−19%
97 yes / 354 no · 98 HRs
HR-friendly park (factor ≥ 1.10)
+14%
73 yes / 374 no · 96 HRs
Vs. short-leash starter (avg IP < 5.0)
+13%
173 yes / 269 no · 94 HRs
Opposing starter coming off >7 days rest
−11%
66 yes / 352 no · 87 HRs
3rd time through order vs starter
−10%
293 yes / 158 no · 98 HRs
Summer game (Jun-Aug)
−6%
205 yes / 246 no · 98 HRs
Playing at home
−5%
228 yes / 223 no · 98 HRs
Cold month (Apr / Sep / Oct)
+5%
128 yes / 323 no · 98 HRs
HR-suppressing park (factor ≤ 0.95)
+5%
171 yes / 276 no · 96 HRs
Wind blowing out (≥10 mph, outdoor)
neutral
6 yes / 435 no · 96 HRs
≥2 career HRs vs this pitcher
neutral
6 yes / 445 no · 98 HRs
Vs. high-contact-quality pitcher (avg EV allowed ≥ 89 mph)
neutral
207 yes / 244 no · 98 HRs
No rest day (B2B or doubleheader)
neutral
361 yes / 89 no · 98 HRs
Vs. high-xwOBA pitcher (xwOBA allowed > .340)
neutral
108 yes / 342 no · 98 HRs
Platoon advantage (LHB-vs-RHP or RHB-vs-LHP)
neutral
221 yes / 91 no · 63 HRs
First-pitch temperature > 78°F
neutral
72 yes / 369 no · 96 HRs
Opposing starter's recent FB velo down ≥1 mph
neutral
56 yes / 328 no · 84 HRs
Vs. HR-prone pitcher (HR/PA > 3.8%)
neutral
91 yes / 356 no · 97 HRs
Vs. fastball-heavy pitcher (FB% ≥ 55%)
neutral
239 yes / 196 no · 94 HRs
Vs. low-whiff pitcher (whiff% < 22%)
neutral
0 yes / 0 no · 0 HRs
≥3 career HRs vs this pitcher
neutral
0 yes / 451 no · 98 HRs
Vs. barrel-prone pitcher (Barrel% allowed > 9%)
neutral
0 yes / 448 no · 98 HRs