PLAYER TOURNAMENT DETAILS
Ethan Oberholzer
102094361Ekurhuleni (GE)Tournament details
| Tour Id | 20253802 |
| Group Id | 20253800 |
| Name | USSA Chess Championships 2025 |
| Section | Open |
| Rounds | 9 |
| Format | Swiss |
| Type | Classical |
| Start | 2025-12-01 |
| End | 2025-12-05 |
| Submitted | 2025-12-24 |
| Rated | 2025-12-24 |
| Submit age weight | 1 |
| Host | Johannesburg Metro (GJM) |
| Total time | 120 |
| Time weight | 1 |
| Official results | Official results |
General
| Games | 9 |
| Score | 4.5 |
| Percent | 50 |
| Dp | 0 |
| Aor | 1413.6 |
| Perform | 1413.6 |
| Penalties | 0 |
| Wins | 3 |
| Draws | 3 |
| Losses | 3 |
| White | 5 |
| Black | 4 |
| White wins | 2 |
| Black wins | 1 |
| Default wins | 0 |
| Default losses | 0 |
| Byes | 0 |
| Half byes | 0 |
| Rank | 140 |
| Final Pos | 103 |
| Share Pos | 76 |
| Count for rating | Yes |
Analysis (Main)
| Rating | 1290.7 |
| K-factor | 20 |
| Score | 4.5 |
| Expected score | 3.25 |
| Score - Expected score | 1.25 |
| Rating +/- | 25 |
Analysis (Type)
| Rating | 1299.2 |
| K-factor | 20 |
| Score | 4.5 |
| Expected score | 3.45 |
| Score - Expected score | 1.05 |
| Rating +/- | 21 |
Opponents
| Round | Date | Opponent | Fed | Title | Main | Type | Col | Res | Main | Type | Cfr | ||||
| We | Swe | +/- | We | Swe | +/- | ||||||||||
| 1 | 2025-12-01 | Bokgoshi, L (Lesley) | GE | 1500.3 | 1441.5 | W | 0 | 0.3 | -0.3 | -6 | 0.38 | -0.38 | -7.6 | Yes | |
| 2 | 2025-12-01 | Ndlovu, A (Andile) | WCT | 1165.9 | 1164.5 | B | 0 | 0.6 | -0.6 | -12 | 0.62 | -0.62 | -12.4 | Yes | |
| 3 | 2025-12-02 | Benyana, M (Musa) | WCT | 1189.1 | 1200 | W | 0.5 | 0.66 | -0.16 | -3.2 | 0.66 | -0.16 | -3.2 | Yes | |
| 4 | 2025-12-02 | Chambane, N (Nhlakanipho) | MEN | 1240.4 | 1247.5 | B | 1 | 0.52 | 0.48 | 9.6 | 0.52 | 0.48 | 9.6 | Yes | |
| 5 | 2025-12-03 | Somenze, K (Katlego) | NNM | 1270.2 | 1282.2 | W | 1 | 0.57 | 0.43 | 8.6 | 0.56 | 0.44 | 8.8 | Yes | |
| 6 | 2025-12-04 | Khumalo, M (Moletelo) | GSV | 1575.2 | 1587.9 | B | 0.5 | 0.13 | 0.37 | 7.4 | 0.12 | 0.38 | 7.6 | Yes | |
| 7 | 2025-12-04 | Cele, S (Siyabonga) | GJM | 1565.9 | 1568 | W | 1 | 0.22 | 0.78 | 15.6 | 0.23 | 0.77 | 15.4 | Yes | |
| 8 | 2025-12-05 | Kruse, M (Michael) | CSA | 1640 | 1599.6 | B | 0.5 | 0.05 | 0.45 | 9 | 0.11 | 0.39 | 7.8 | Yes | |
| 9 | 2025-12-05 | Moribane, D (Dikano) | LCP | 1575.2 | 1536.6 | W | 0 | 0.21 | -0.21 | -4.2 | 0.27 | -0.27 | -5.4 | Yes | |