| 180.00 (36/20) | AR Adams | v Canada at Benoni, 03/03/2003 [1977] |
| 157.14 (33/21) | CL Cairns | v Bangladesh at Kimberley, 26/02/2003 [1968] |
| 145.83 (35/24) | AR Adams | v West Indies at Port Elizabeth, 13/02/2003 [1949] |
| 142.10 (54/38) | SB Styris | v Canada at Benoni, 03/03/2003 [1977] |
| 131.03 (38/29) | CZ Harris | v Canada at Benoni, 03/03/2003 [1977] |
| 112.80 (141/125) | SB Styris | v Sri Lanka at Bloemfontein, 10/02/2003 [1944] |
| 110.71 (31/28) | CL Cairns | v Canada at Benoni, 03/03/2003 [1977] |
| 109.52 (46/42) | SP Fleming | v Zimbabwe at Bloemfontein, 08/03/2003 [1984] |
| 102.77 (37/36) | SB Styris | v Bangladesh at Kimberley, 26/02/2003 [1968] |
| 101.51 (134/132) | SP Fleming | v South Africa at Johannesburg, 16/02/2003 [1955] |
| 100.00 (25/25) | SP Fleming | v West Indies at Port Elizabeth, 13/02/2003 [1949] |
| 94.73 (54/57) | NJ Astle | v South Africa at Johannesburg, 16/02/2003 [1955] |
| 90.36 (75/83) | CD McMillan | v Bangladesh at Kimberley, 26/02/2003 [1968] |
| 84.09 (37/44) | CL Cairns | v West Indies at Port Elizabeth, 13/02/2003 [1949] |
| 83.60 (102/122) | NJ Astle | v Zimbabwe at Bloemfontein, 08/03/2003 [1984] |
| 80.00 (32/40) | SP Fleming | v Bangladesh at Kimberley, 26/02/2003 [1968] |
| 78.12 (25/32) | CD McMillan | v South Africa at Johannesburg, 16/02/2003 [1955] |
| 73.97 (54/73) | CL Cairns | v Zimbabwe at Bloemfontein, 08/03/2003 [1984] |
| 68.57 (48/70) | SP Fleming | v Australia at Port Elizabeth, 11/03/2003 [1986] |
| 67.92 (36/53) | BB McCullum | v West Indies at Port Elizabeth, 13/02/2003 [1949] |
| 65.71 (46/70) | NJ Astle | v West Indies at Port Elizabeth, 13/02/2003 [1949] |
| 57.14 (32/56) | CL Cairns | v Sri Lanka at Bloemfontein, 10/02/2003 [1944] |
| 50.84 (30/59) | SP Fleming | v India at Centurion, 14/03/2003 [1988] |
