Plans built only from the evidence.

Right-handed batters: economy of 4.81, 0.27 above their economy of 4.54 on all balls bowled (+6%) — allowing for sample size, that change is in the bottom 5% of comparable players (their median change: -0%) — 1145 balls bowled.

Sample: 1,145 balls · high confidence

United States of America: average of 35.3, 11.9 above their average of 23.4 on all balls bowled (+51%) — allowing for sample size, that change is in the bottom 23% of comparable players (their median change: +10%) — 390 balls bowled.

Sample: 390 balls · medium confidence

Death (41-50): economy of 6.52, 1.98 above their economy of 4.54 on all balls bowled (+44%) — allowing for sample size, that change is in the bottom 29% of comparable players (their median change: +19%) — 367 balls bowled.

Sample: 367 balls · medium confidence

Powerplay (1-10): economy of 3.67, 0.87 below their economy of 4.54 on all balls bowled (-19%) — allowing for sample size, that change is in the top 7% of comparable players (their median change: -6%) — 932 balls bowled.

Sample: 932 balls · high confidence

Left-handed batters: economy of 3.68, 0.86 below their economy of 4.54 on all balls bowled (-19%) — allowing for sample size, that change is in the top 1% of comparable players (their median change: +1%) — 375 balls bowled.

Sample: 375 balls · medium confidence