| 1445.3 | 1490 | 32 | 32 | Kolbe, L (Luke) | | WCT | 1262.6 | 1233.3 | Moja Chess Extravaganza 2026 (U10) | 4 | 2026-04-26 | S | B | 0 | 0.67 | -0.67 | -18 | 0.76 | -0.76 | -24.2 |
| 1453.9 | 1302.7 | 32 | 36 | Kolbe, L (Luke) | | WCT | 1233.2 | 1171.5 | Mary-Anne Bartels Closed Chess Tournament 2026 (U7+U9 Boys) | 2 | 2026-03-14 | R | W | 1 | 0.8 | 0.2 | 3.9 | 0.69 | 0.31 | 11 |
| 1435.1 | 1415.9 | 20 | 20 | Kolbe, L (Luke) | | WCT | 1195.4 | 1214.1 | CT Metro District East Schools Chess Individuals Trials 2026 (U9 Boys) | 3 | 2026-02-07 | S | B | 1 | 0.74 | 0.26 | 3 | 0.69 | 0.31 | 4.3 |
| 1414.8 | 1395.7 | 20 | 20 | Kolbe, L (Luke) | | WCT | 1185.5 | 1215.6 | Gordons Bay Primary Chess Championship 2025 (U9) | 1 | 2025-10-25 | S | B | 1 | 0.73 | 0.27 | 4.5 | 0.67 | 0.33 | 6.6 |
| 1399.2 | 1296.4 | 20 | 20 | Kolbe, L (Luke) | | WCT | 1168.4 | 1142 | Gordons Bay Library Chess Tournament 2025 (U9) | 1 | 2025-07-26 | R | W | 1 | 0.81 | 0.19 | 2.3 | 0.72 | 0.28 | 5.6 |
| 1268.5 | 1261.7 | 20 | 20 | Kolbe, L (Luke) | | WCT | 1174 | 1200.7 | Helderberg Chess Club Open 2025 (U9) | 1 | 2025-06-07 | S | B | 1 | 0.57 | 0.43 | 7.1 | 0.53 | 0.47 | 9.4 |
| 1241 | 1258 | 20 | 20 | Kolbe, L (Luke) | | WCW | 1140.3 | 1173 | Helderberg Chess Club PS Development Tournament 2025 (U9) | 3 | 2025-01-25 | S | W | 1 | 0.66 | 0.34 | 5.6 | 0.64 | 0.36 | 7.2 |
| 1217.7 | 1243.2 | 20 | 20 | Kolbe, L (Luke) | | WCW | 1179.1 | 1222 | Gordons Bay Primary Chess Championship 2024 (U7) | 2 | 2024-11-09 | S | B | 1 | 0.5 | 0.5 | 8.3 | 0.48 | 0.52 | 10.4 |
| 1200 | 1200 | 20 | 20 | Kolbe, L (Luke) | | WCW | 1200 | 1200 | Hermanus Chess Club Open 2024 (Development) | 6 | 2024-04-20 | R | W | 0 | 0.54 | -0.54 | -5.1 | 0.54 | -0.54 | -10.8 |
