PLAYER TOURNAMENT DETAILS
Ruben John
1060141771Buffalo City (EBC)Tournament details
| Tour Id | 20251028 |
| Group Id | 20251015 |
| Name | South African Junior Closed Chess Championships 2025 |
| Section | U20 Open |
| Rounds | 9 |
| Format | Swiss |
| Type | Classical |
| Start | 2025-03-31 |
| End | 2025-04-05 |
| Submitted | 2025-04-09 |
| Rated | 2025-04-09 |
| Submit age weight | 1 |
| Host | Cape Winelands (WCW) |
| Total time | 120 |
| Time weight | 1 |
| Official results | Official results |
General
| Games | 8 |
| Score | 2.5 |
| Percent | 31.3 |
| Dp | -159.4 |
| Aor | 1551.5 |
| Perform | 1392.1 |
| Penalties | 0 |
| Wins | 2 |
| Draws | 1 |
| Losses | 5 |
| White | 4 |
| Black | 4 |
| White wins | 1 |
| Black wins | 1 |
| Default wins | 0 |
| Default losses | 0 |
| Byes | 1 |
| Half byes | 0 |
| Rank | 17 |
| Final Pos | 17 |
| Share Pos | 17 |
| Count for rating | Yes |
Analysis (Main)
| Rating | 1490 |
| K-factor | 20 |
| Score | 2.5 |
| Expected score | 4.53 |
| Score - Expected score | -0.95 |
| Rating +/- | -19 |
Analysis (Type)
| Rating | 1499.2 |
| K-factor | 20 |
| Score | 2.5 |
| Expected score | 4.59 |
| Score - Expected score | -1.02 |
| Rating +/- | -20.4 |
Opponents
| Round | Date | Opponent | Fed | Title | Main | Type | Col | Res | Main | Type | Cfr | ||||
| We | Swe | +/- | We | Swe | +/- | ||||||||||
| 1 | 2025-03-31 | Ncethelo, B (Bongolethu) | WCT | 1868 | 1863.2 | B | 0 | 0.02 | -0.02 | -0.4 | 0.03 | -0.03 | -0.6 | Yes | |
| 2 | 2025-03-31 | Williams, E (Eric) | LMG | 1326.3 | 1290 | W | 1 | 0.73 | 0.27 | 5.4 | 0.79 | 0.21 | 4.2 | Yes | |
| 3 | 2025-04-01 | Bless, L (Lulutho) | WCT | 1731.6 | 1789.4 | B | 0 | 0.18 | -0.18 | -3.6 | 0.12 | -0.12 | -2.4 | Yes | |
| 4 | 2025-04-01 | Brander, WWM (Waylon) | WCT | 1973.7 | 1985.6 | W | 0 | 1.08 | -0.01 | -0.2 | 1.08 | -0.01 | -0.2 | Yes | |
| 5 | 2025-04-03 | Makaula, V (Vumankosi) | KED | 1494.3 | 1492.9 | W | 0 | 0.54 | -0.54 | -10.8 | 0.55 | -0.55 | -11 | Yes | |
| 6 | 2025-04-03 | Kgomo, M (Mathema) | LCP | 1399.6 | 1384.3 | B | 1 | 0.56 | 0.44 | 8.8 | 0.59 | 0.41 | 8.2 | Yes | |
| 7 | 2025-04-04 | 0 | 0 | Y | 1 | 0 | 0 | 0 | 0 | 0 | 0 | No (Bye) | |||
| 8 | 2025-04-04 | Tlaka, J (Jacob) | LCP | 1311.6 | 1308.8 | W | 0.5 | 0.75 | -0.25 | -5 | 0.76 | -0.26 | -5.2 | Yes | |
| 9 | 2025-04-05 | Ngoepe, TJM (Maitemogelo) | LCP | 1306.9 | 1321.9 | B | 0 | 0.67 | -0.67 | -13.4 | 0.66 | -0.66 | -13.2 | Yes | |