| 1644.5 | 1645.2 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1798.2 | 1788.7 | BC Vikings Closed 2023 (U18+U20) | 3 | 2023-10-03 | S | W | 1 | 0.36 | 0.64 | 10.9 | 0.37 | 0.63 | 12.6 |
| 1618.1 | 1627.8 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1685.8 | 1661.3 | Master Vikings 2023 | 5 | 2023-02-11 | S | W | 0 | 0.46 | -0.46 | -7.6 | 0.5 | -0.5 | -10 |
| 1619.6 | 1157.7 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1606.6 | 1187.2 | BC Chess Trials 5 of 5 2022 (A) | 7 | 2022-06-11 | R | B | 0 | 0.47 | -0.47 | -3.1 | 0.42 | -0.42 | -8.4 |
| 1625.1 | 1100.1 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1608.2 | 1177.5 | BC Chess 4th Border Trials 2022 (A) | 5 | 2022-05-21 | R | B | 0.5 | 0.48 | 0.02 | 0.1 | 0.37 | 0.13 | 2.6 |
| 1544.2 | 1558.2 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1591.1 | 1586 | BC Trials 3 2022 (U18A+U20A) | 4 | 2022-03-05 | S | B | 0.5 | 0.4 | 0.1 | 1.7 | 0.43 | 0.07 | 1.4 |
| 1486.8 | 1492.6 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1530.4 | 1534.5 | Big Buffalo Swiss Open and Junior Closed 2021 | 5 | 2021-09-11 | S | B | 0.5 | 0.41 | 0.09 | 1.5 | 0.41 | 0.09 | 1.8 |
| 1498.2 | 1506 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1566.3 | 1577.6 | Buffalo City Chess Senior Trials 2021 | 2 | 2021-04-10 | S | W | 0.5 | 0.46 | 0.04 | 0.7 | 0.46 | 0.04 | 0.8 |
| 1417.8 | 1458.4 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1448.4 | 1463.5 | Vikings League 6 of 6 2019 (Open) | 4 | 2019-10-26 | S | B | 0 | 0.42 | -0.42 | -7 | 0.45 | -0.45 | -9 |
| 1371.1 | 1393.5 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1443.1 | 1459.7 | Vikings League 4 of 6 2019 (A) | 3 | 2019-09-14 | S | B | 1 | 0.37 | 0.63 | 10.5 | 0.38 | 0.62 | 12.4 |
| 1386.5 | 1420.1 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1449.7 | 1472.5 | Vikings League 2 of 6 2019 (A) | 3 | 2019-08-17 | S | B | 0 | 0.38 | -0.38 | -6.3 | 0.4 | -0.4 | -8 |
| 1267.8 | 1219.8 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1422.3 | 1422.8 | Buffalo City Trials 1 of 5 2019 (U16) | 4 | 2019-02-02 | S | B | 0 | 0.28 | -0.28 | -4.6 | 0.22 | -0.22 | -4.4 |
| 1361.2 | 966.5 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1353.3 | 1171 | Vikings Closed Sunday Rapid 2018 | 3 | 2018-12-09 | R | W | 1 | 0.55 | 0.45 | 4.2 | 0.3 | 0.7 | 14 |
| 1372 | 1358.4 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1391.3 | 1405.9 | 5th Vikings League 2018 (A) | 2 | 2018-11-01 | S | B | 1 | 0.44 | 0.56 | 9.3 | 0.4 | 0.6 | 12 |
| 1188.6 | 1190 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1188.9 | 1205.4 | 5th Buffalo Trials 2018 (U14A) | 5 | 2018-05-26 | S | B | 0.5 | 0.46 | 0.04 | 0.7 | 0.44 | 0.06 | 1.2 |
| 1188.6 | 1190 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1188.9 | 1205.4 | 4th Buffalo Trials 2018 (U14A) | 3 | 2018-05-05 | S | W | 0 | 0.54 | -0.54 | -9 | 0.52 | -0.52 | -10.4 |
| 1032.6 | 896.1 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1194.9 | 1193 | 3rd Buffalo Trials 2018 (U14A) | 1 | 2018-04-14 | R | W | 0 | 0.35 | -0.35 | -4.2 | 0.2 | -0.2 | -4 |
| 709 | 709 | 20 | 20 | Sparg, N (Nathan) | | EBC | 825 | 825 | Young Legends 2017 (B) | 5 | 2017-02-04 | S | B | 0 | 0.34 | -0.34 | -5.6 | -0.34 | 0.34 | 6.8 |
| 743 | 743 | 20 | 20 | Sparg, N (Nathan) | | EBC | 873 | 873 | Open 28 29 Aug (C) | 4 | 2015-08-29 | S | W | 1 | 0.32 | 0.68 | 11.3 | 0.68 | 0.32 | 6.4 |
