| 1753.7 | 1745.7 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1789.6 | 1774.1 | Buffalo City Chess Closed 2023 | 7 | 2023-12-10 | S | B | 1 | 0.42 | 0.58 | 10.9 | 0.43 | 0.57 | 11.4 |
| 1761.9 | 1760.8 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1798.2 | 1788.7 | BC Vikings Closed 2023 (U18+U20) | 5 | 2023-10-04 | S | W | 0.5 | 0.5 | 0 | 0 | 0.51 | -0.01 | -0.2 |
| 1761.9 | 1517.4 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1798.2 | 1360.5 | BC Vikings Blitz Championship 2023 | 5 | 2023-10-05 | B | W | 1 | 0.5 | 0.5 | 1.8 | 0.72 | 0.28 | 5.6 |
| 1794 | 1794.4 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1810.8 | 1801.7 | BCM Chess Clubs League 2023 (Premier) | 4 | 2023-09-09 | S | W | 0.5 | 0.52 | -0.02 | -0.4 | 0.53 | -0.03 | -0.6 |
| 1677.8 | 1687 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1685.8 | 1661.3 | 2nd Master Vikings 2023 | 3 | 2023-02-23 | S | B | 0 | 0.45 | -0.45 | -7.5 | 0.49 | -0.49 | -9.8 |
| 1677.8 | 1687 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1685.8 | 1661.3 | Master Vikings 2023 | 3 | 2023-02-11 | S | W | 0 | 0.53 | -0.53 | -8.8 | 0.57 | -0.57 | -11.4 |
| 1693.7 | 1403.1 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1606.6 | 1187.2 | BC Chess Trials 5 of 5 2022 (A) | 4 | 2022-06-11 | R | W | 0 | 0.64 | -0.64 | -4.2 | 0.79 | -0.79 | -15.8 |
| 1680.4 | 1377.5 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1608.2 | 1177.5 | BC Chess 4th Border Trials 2022 (A) | 7 | 2022-05-21 | R | W | 1 | 0.63 | 0.37 | 2.4 | 0.77 | 0.23 | 4.6 |
| 1592.3 | 1520 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1563.3 | 1193 | BC GP 3 of 3 2021 | 4 | 2021-11-06 | B | W | 0 | 0.58 | -0.58 | -2.1 | 0.92 | -0.92 | -18.4 |
| 1592.3 | 1520 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1563.3 | 1193 | BC Blitz Finals 2021 (A) | 1 | 2021-11-07 | B | B | 0.5 | 0.49 | 0.01 | 0 | 0.84 | -0.34 | -6.8 |
| 1524.8 | 1517.5 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1573.8 | 1573.3 | Vikings Closed Swiss March 2020 | 2 | 2020-03-07 | S | B | 0 | 0.4 | -0.4 | -6.8 | 0.39 | -0.39 | -7.8 |
| 1235.6 | 1228.8 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1261.9 | 1262.5 | Border Vikings vs South Park 2018 (B) | 5 | 2018-09-08 | S | W | 0 | 0.51 | -0.51 | -9.6 | 0.5 | -0.5 | -10 |
| 1200 | 1200 | 20 | 20 | Sparg, N (Nathan) | | EBC | 1225.1 | 1176.6 | Ashleys Chess Vikings Rapid 2018 (A) | 2 | 2018-06-03 | R | B | 0 | 0.43 | -0.43 | -3.4 | 0.49 | -0.49 | -9.8 |
