| 1602.8 | 1610.5 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1614.3 | 1611.7 | 2025 Mzansi Individual Championships (U18 Open) | 2 | 2025-12-18 | S | W | 0.5 | 0.53 | -0.03 | -0.6 | 0.54 | -0.04 | -0.8 |
| 1607.5 | 1609.7 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1580.4 | 1584.5 | EC Closed 2025 (U18 Boys) | 5 | 2025-09-07 | S | B | 0.5 | 0.49 | 0.01 | 0.2 | 0.49 | 0.01 | 0.2 |
| 1480 | 1480.2 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1508.2 | 1505.3 | BC Closed 2025 | 2 | 2025-03-01 | S | B | 0 | 0.43 | -0.43 | -8.1 | 0.43 | -0.43 | -8.6 |
| 1526.3 | 1528.5 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1525.2 | 1532.8 | Buffalo City District Schools Chess All Ages Championships 2024 (U18 Boys) | 4 | 2024-08-10 | S | B | 0.5 | 0.46 | 0.04 | 0.7 | 0.45 | 0.05 | 1 |
| 1412.6 | 1389.4 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1329.2 | 1313.7 | BC Chess Trials 1 of 5 2023 (U18A-Adult) | 5 | 2023-04-29 | S | B | 0.5 | 0.56 | -0.06 | -1 | 0.55 | -0.05 | -1 |
| 1389.1 | 1371.5 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1315.8 | 1286.1 | 3rd Vikings Champs 2023 (Prestige) | 3 | 2023-03-25 | S | B | 0.5 | 0.54 | -0.04 | -0.7 | 0.56 | -0.06 | -1.2 |
| 1351.5 | 1324.6 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1312.2 | 1275.7 | Junior Vikings 2023 (U14A+U16A) | 5 | 2023-02-11 | S | B | 1 | 0.5 | 0.5 | 8.3 | 0.52 | 0.48 | 9.6 |
| 1175.3 | 1167.9 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1212.9 | 1214.9 | BC Trials 2 2022 (U16A) | 4 | 2022-02-19 | S | B | 0.5 | 0.41 | 0.09 | 1.5 | 0.4 | 0.1 | 2 |
| 1212.9 | 1214 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1177 | 1171.7 | Young Buffalos Closed 2021 (A) | 4 | 2021-09-11 | S | W | 0 | 0.58 | -0.58 | -9.6 | 0.59 | -0.59 | -11.8 |
| 1203 | 1203.2 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1165.6 | 1157.7 | Mortal Kombat 2021 (A) | 2 | 2021-04-10 | S | B | 0.5 | 0.5 | 0 | 0 | 0.51 | -0.01 | -0.2 |
| 843.1 | 831.5 | 20 | 20 | Pearson, E (Ethan) | | EBC | 995.1 | 979.4 | Buffalo City Trials 2 of 5 2019 (U12A) | 4 | 2019-02-23 | S | B | 0 | 0.28 | -0.28 | -4.6 | 0.29 | -0.29 | -5.8 |
| 895.8 | 880.7 | 20 | 20 | Pearson, E (Ethan) | | EBC | 1082.8 | 1077 | 5th Vikings League 2018 (B) | 1 | 2018-11-01 | S | B | 0 | 0.24 | -0.24 | -4 | 0.23 | -0.23 | -4.6 |
| 783.6 | 686 | 20 | 20 | Pearson, E (Ethan) | | EBC | 739.3 | 737 | Chess Vikings League 2nd 2018 (B) | 5 | 2018-08-04 | S | B | 0 | 0.51 | -0.51 | -8.5 | 0.4 | -0.4 | -8 |
| 542 | 542 | 20 | 20 | Pearson, E (Ethan) | | EBC | 697 | 697 | Buffalo City 1st Chess Trials 2018 (U12A) | 4 | 2018-02-17 | S | B | 0 | 0.28 | -0.28 | -4.6 | 0.28 | -0.28 | -5.6 |
| 536 | 536 | 20 | 20 | Pearson, E (Ethan) | | EBC | 631 | 631 | Little League 23 September 2017 | 5 | 2017-09-23 | S | W | 1 | 0.37 | 0.63 | 10.5 | 0.63 | 0.37 | 7.4 |
| 0 | 0 | 20 | 20 | Pearson, E (Ethan) | | EBC | 740 | 740 | 2017 1St Buffalo City Chess Trials (U8 + U10 B) | 4 | 2017-03-25 | S | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
