| 1110.5 | 1110.2 | 20 | 20 | Nel, W (William) | | NZF | 1351.1 | 1359.4 | Mangaung Metro Chess 18-19 January 2019 (B) | 2 | 2019-01-18 | S | B | 0.5 | 0.18 | 0.32 | 5.4 | 0.17 | 0.33 | 6.6 |
| 1102.5 | 1123.6 | 20 | 20 | Nel, W (William) | | NZF | 1296.6 | 1316.4 | ZF Mgcawu Qualifier (2) | 2 | 2018-04-21 | S | W | 0 | 0.32 | -0.32 | -5.3 | 0.32 | -0.32 | -6.4 |
| 1057.7 | 1075.2 | 20 | 20 | Nel, W (William) | | NZF | 1241 | 1249.4 | ZF Mgcawu Schools District Open Chess Tournament 2018 (U18 Boys) | 3 | 2018-03-17 | S | B | 0 | 0.24 | -0.24 | -4 | 0.26 | -0.26 | -5.2 |
| 1057.7 | 1075.2 | 20 | 20 | Nel, W (William) | | NZF | 1241 | 1249.4 | ZF Mgcawu Inter-Region Open Trials (Qualifier 2) | 3 | 2018-03-24 | S | W | 0.5 | 0.33 | 0.17 | 2.8 | 0.34 | 0.16 | 3.2 |
| 934 | 934 | 20 | 20 | Nel, W (William) | | NC | 1184 | 1184 | Nc Qualifying Tournament Upington 28-29 October 2016 (U14-U20) | 1 | 2016-10-28 | S | B | 0 | 0.19 | -0.19 | -3.2 | -0.19 | 0.19 | 3.8 |
| 844 | 844 | 20 | 20 | Nel, W (William) | | NC | 1066 | 1066 | Upington Tournament 30 January 2016 (B) | 2 | 1900-01-01 | S | W | 0.5 | 0.22 | 0.28 | 4.6 | 0.28 | 0.22 | 4.4 |
| 844 | 844 | 20 | 20 | Nel, W (William) | | NC | 1066 | 1066 | Upington Tournament 30 January 2016 (B) | 2 | 1900-01-01 | S | W | 0.5 | 0.22 | 0.28 | 4.6 | 0.28 | 0.22 | 4.4 |
| 797 | 797 | 20 | 20 | Nel, W (William) | | NC | 1066 | 1066 | 24 October 2015 Upington (A B Section) | 1 | 2015-10-24 | S | B | 0 | 0.17 | -0.17 | -2.8 | -0.17 | 0.17 | 3.4 |
| 702 | 702 | 20 | 20 | Nel, W (William) | | NC | 962 | 962 | Duineveld 17 April 2015 (A B Section) | 2 | 2015-04-17 | S | W | 0.5 | 0.18 | 0.32 | 5.3 | 0.32 | 0.18 | 3.6 |
| 704 | 704 | 20 | 20 | Nel, W (William) | | NC | 1001 | 1001 | 13 14 Feb Duineveld (B-Section) | 5 | 1900-01-01 | S | W | 0 | 0.15 | -0.15 | -2.5 | -0.15 | 0.15 | 3 |
