Strategy

Plans built only from the evidence.

Every line below is a measured split or record from the data, with the sample behind it. Nothing here is a prediction.

CK Langeveldt, Men's Test

Right-handed batters: average of 35.5, 7.2 above their average of 28.3 on all balls bowled (+26%) — allowing for sample size, that change is in the bottom 14% of comparable players (their median change: -2%) — 377 balls bowled.
Sample: 377 balls · medium confidence

Old ball (21-80): economy of 2.83, 0.57 below their economy of 3.40 on all balls bowled (-17%) — allowing for sample size, that change is in the top 2% of comparable players (their median change: -1%) — 267 balls bowled.
Sample: 267 balls · low confidence
Old ball (21-80): strike rate of 38.1, 11.8 below their strike rate of 49.9 on all balls bowled (-24%) — allowing for sample size, that change is in the top 9% of comparable players (their median change: +5%) — 267 balls bowled.
Sample: 267 balls · low confidence
At home: average of 18.9, 9.4 below their average of 28.3 on all balls bowled (-33%) — allowing for sample size, that change is in the top 11% of comparable players (their median change: -5%) — 321 balls bowled.
Sample: 321 balls · low confidence
South Africa: average of 18.9, 9.4 below their average of 28.3 on all balls bowled (-33%) — allowing for sample size, that change is in the top 12% of comparable players (their median change: +1%) — 321 balls bowled.
Sample: 321 balls · low confidence

Batter
Batter	Balls	Runs	Wkts	Avg	Econ	Balls/wkt	Dot %	4s+6s %
Right-handed batters	377	213	6	35.50	3.39	62.8	78.8%	8.5%
Left-handed batters	172	98	5	19.60	3.42	34.4	74.4%	8.1%

Phase
Phase	Balls	Runs	Wkts	Avg	Econ	Balls/wkt	Dot %	4s+6s %
Old ball (21-80)	267	126	7	18.00	2.83	38.1	79.8%	6.4%
New ball (1-20)	234	140	4	35.00	3.59	58.5	75.6%	9.0%