PLAYER TOURNAMENT DETAILS
Nathan Marais
1090312546Tshwane (GTP)Tournament details
| Tour Id | 20253339 |
| Group Id | 20253339 |
| Name | Pretoria Boys High Annual Closed Chess Championship 2025 |
| Section | |
| Rounds | 5 |
| Format | Swiss |
| Type | Rapid |
| Start | 2025-10-18 |
| End | 2025-10-18 |
| Submitted | 2025-10-27 |
| Rated | 2025-10-27 |
| Submit age weight | 1 |
| Host | Tshwane (GTP) |
| Total time | 30 |
| Time weight | 0.6 |
| Official results | Official results |
General
| Games | 5 |
| Score | 2 |
| Percent | 40 |
| Dp | -85 |
| Aor | 1234.6 |
| Perform | 1149.6 |
| Penalties | 0 |
| Wins | 2 |
| Draws | 0 |
| Losses | 3 |
| White | 3 |
| Black | 2 |
| White wins | 2 |
| Black wins | 0 |
| Default wins | 0 |
| Default losses | 0 |
| Byes | 0 |
| Half byes | 0 |
| Rank | 5 |
| Final Pos | 16 |
| Share Pos | 16 |
| Count for rating | Yes |
Analysis (Main)
| Rating | 1447 |
| K-factor | 20 |
| Score | 2 |
| Expected score | 3.78 |
| Score - Expected score | -1.78 |
| Rating +/- | -21.4 |
Analysis (Type)
| Rating | 1200 |
| K-factor | 20 |
| Score | 2 |
| Expected score | 2.47 |
| Score - Expected score | -0.47 |
| Rating +/- | -9.4 |
Opponents
| Round | Date | Opponent | Fed | Title | Main | Type | Col | Res | Main | Type | Cfr | ||||
| We | Swe | +/- | We | Swe | +/- | ||||||||||
| 1 | 2025-10-18 | Van Der Merwe, B (Blaine) | ENM | 1175 | 1158.4 | W | 1 | 0.86 | 0.14 | 1.7 | 0.59 | 0.41 | 8.2 | Yes | |
| 2 | 2025-10-18 | Van den Berg, J (John) | GTP | 1200 | 1200 | B | 0 | 0.75 | -0.75 | -9 | 0.46 | -0.46 | -9.2 | Yes | |
| 3 | 2025-10-18 | Quagraine, K (Kweku) | GTP | 1233.3 | 1200 | W | 1 | 0.79 | 0.21 | 2.5 | 0.54 | 0.46 | 9.2 | Yes | |
| 4 | 2025-10-18 | Webber, J (Jason) | GTP | 1300 | 1300 | B | 0 | 0.63 | -0.63 | -7.6 | 0.34 | -0.34 | -6.8 | Yes | |
| 5 | 2025-10-18 | Strydom, L (Lucien) | GTP | 1264.7 | 1200 | W | 0 | 0.75 | -0.75 | -9 | 0.54 | -0.54 | -10.8 | Yes | |