| 1292.7 | 1302.9 | 20 | 20 | Iglesias Giannantonio, M (Mario) | | NCF | 1304.5 | 1302.2 | ZF Mgcawu Open 2023 (U13+U15) | 4 | 2023-03-04 | S | W | 0.5 | 0.53 | -0.03 | -0.5 | 0.54 | -0.04 | -0.8 |
| 1240.4 | 1239.2 | 20 | 20 | Iglesias Giannantonio, M (Mario) | | NCF | 1231.9 | 1228.9 | ZFM Schools Trials 2022 (U13 Boys) | 4 | 2022-05-28 | S | W | 0.5 | 0.55 | -0.05 | -0.8 | 0.55 | -0.05 | -1 |
| 1249.5 | 1250.4 | 20 | 20 | Iglesias Giannantonio, M (Mario) | | NCF | 1249.4 | 1258.8 | Northern Cape Schools Chess Provincial Eliminations 2021 (Boys) | 3 | 2021-11-05 | S | B | 0 | 0.46 | -0.46 | -7.7 | 0.45 | -0.45 | -9 |
| 1194.4 | 1180 | 20 | 20 | Iglesias Giannantonio, M (Mario) | | NCF | 1197 | 1196.4 | ZFM Schools Eliminations 2021 (Open) | 5 | 2021-10-16 | S | B | 0 | 0.46 | -0.46 | -7.7 | 0.44 | -0.44 | -8.8 |
