Plans built only from the evidence.

Right-handed batters: average of 33.4, 2.5 above their average of 30.9 on all balls bowled (+8%) — allowing for sample size, that change is in the bottom 24% of comparable players (their median change: -1%) — 908 balls bowled.

Sample: 908 balls · high confidence

Left-handed batters: average of 26.3, 4.6 below their average of 30.9 on all balls bowled (-15%) — allowing for sample size, that change is in the top 26% of comparable players (their median change: +2%) — 395 balls bowled.

Sample: 395 balls · medium confidence

South Africa: average of 28.4, 2.5 below their average of 30.9 on all balls bowled (-8%) — allowing for sample size, that change is in the top 27% of comparable players (their median change: +5%) — 571 balls bowled.

Sample: 571 balls · medium confidence

Australia: average of 20.8, 10.1 below their average of 30.9 on all balls bowled (-33%) — allowing for sample size, that change is in the top 6% of comparable players (their median change: +5%) — 252 balls bowled.

Sample: 252 balls · low confidence

Australia: average of 26.7, 4.2 below their average of 30.9 on all balls bowled (-14%) — allowing for sample size, that change is in the top 19% of comparable players (their median change: +7%) — 288 balls bowled.

Sample: 288 balls · low confidence