| 1422.8 | 1419.8 | 20 | 20 | Van Der Westhuizen, PJ (Petrus) | | NBR | 1541 | 1544.7 | Inter Region 2019 (U18 Open) | 5 | 2019-10-19 | S | B | 0.5 | 0.32 | 0.18 | 3 | 0.31 | 0.19 | 3.8 |
| 1196 | 1192.9 | 20 | 20 | Van Der Westhuizen, PJ (Petrus) | | NBR | 1399.3 | 1412.3 | Hoerskool Brits Tournament 2019 (A) | 5 | 2019-02-09 | S | W | 0 | 0.31 | -0.31 | -5.1 | 0.29 | -0.29 | -5.8 |
| 1212.7 | 1212.7 | 20 | 20 | Van Der Westhuizen, PJ (Petrus) | | NBR | 1307.7 | 1316 | Laerskool Vastrap 2018 (Open) | 4 | 2018-02-03 | S | W | 0 | 0.43 | -0.43 | -7.1 | 0.42 | -0.42 | -8.4 |
| 1055 | 1055 | 20 | 20 | Van Der Westhuizen, Pj (Petrus) | | NBR | 1187 | 1187 | Laerskool Brits Chess 2017 (U16) | 5 | 2017-08-25 | S | W | 0.5 | 0.32 | 0.18 | 3 | 0.18 | 0.32 | 6.4 |
| 972 | 972 | 20 | 20 | Van Der Westhuizen, Pj (Petrus) | | NBR | 1094 | 1094 | 2014 Laerskool Proteapark (U 14) | 4 | 2014-08-30 | S | B | 0 | 0.33 | -0.33 | -5.5 | -0.33 | 0.33 | 6.6 |
| 970 | 970 | 20 | 20 | Van Der Westhuizen, Pj (Petrus) | | NBR | 1052 | 1052 | Brits Primary (Under 14) | 4 | 2014-04-12 | S | B | 0 | 0.39 | -0.39 | -6.5 | -0.39 | 0.39 | 7.8 |
| 1061 | 1061 | 20 | 20 | Van Der Westhuizen, Pj (Petrus) | | NBR | 1126 | 1126 | Vastrap Primary Under 12 | 3 | 2013-02-09 | S | B | 1 | 0.41 | 0.59 | 9.8 | 0.59 | 0.41 | 8.2 |
| 975 | 975 | 20 | 20 | Van Der Westhuizen, J (Jeremy) | | PLA | 1054 | 1054 | Platina 2012 Open Chess Under 12 | 3 | 2012-08-18 | S | B | 0 | 0.39 | -0.39 | -6.5 | -0.39 | 0.39 | 7.8 |
