PLAYER TOURNAMENT DETAILS
Mari Grobbelaar
2160158380Tshwane (GTP)Tournament details
| Tour Id | 20260265 |
| Group Id | 20260263 |
| Name | 2026 Piet Robbertse Open Chess Tournament |
| Section | C |
| Rounds | 5 |
| Format | Swiss |
| Type | Standard |
| Start | 2026-02-07 |
| End | 2026-02-08 |
| Submitted | 2026-02-14 |
| Rated | 2026-02-17 |
| Submit age weight | 0.75 |
| Host | Tshwane (GTP) |
| Total time | 90 |
| Time weight | 0.94 |
| Official results | Official results |
General
| Games | 5 |
| Score | 1 |
| Percent | 20 |
| Dp | -255 |
| Aor | 1364 |
| Perform | 1109 |
| Penalties | 0 |
| Wins | 1 |
| Draws | 0 |
| Losses | 4 |
| White | 2 |
| Black | 3 |
| White wins | 0 |
| Black wins | 1 |
| Default wins | 0 |
| Default losses | 0 |
| Byes | 0 |
| Half byes | 0 |
| Rank | 11 |
| Final Pos | 34 |
| Share Pos | 34 |
| Count for rating | Yes |
Analysis (Main)
| Rating | 1474.2 |
| K-factor | 20 |
| Score | 1 |
| Expected score | 3.11 |
| Score - Expected score | -2.11 |
| Rating +/- | -39.7 |
Analysis (Type)
| Rating | 1477.6 |
| K-factor | 20 |
| Score | 1 |
| Expected score | 3.11 |
| Score - Expected score | -2.11 |
| Rating +/- | -42.2 |
Opponents
| Round | Date | Opponent | Fed | Title | Main | Type | Col | Res | Main | Type | Cfr | ||||
| We | Swe | +/- | We | Swe | +/- | ||||||||||
| 1 | 2026-02-07 | Moyo, D (Dennis) | GTP | 1200 | 1200 | B | 0 | 0.78 | -0.78 | -14.7 | 0.78 | -0.78 | -15.6 | Yes | |
| 2 | 2026-02-07 | Van Wyk, W (Wouter) | GTP | 1402.3 | 1401.7 | W | 0 | 0.63 | -0.63 | -11.8 | 0.63 | -0.63 | -12.6 | Yes | |
| 3 | 2026-02-07 | Marais, L (Luke) | GTP | 1441 | 1440.5 | B | 1 | 0.5 | 0.5 | 7 | 0.5 | 0.5 | 7.5 | Yes | |
| 4 | 2026-02-08 | Anderson, G (Gideon Petrus Van Andel) | GTP | 1348.4 | 1343.6 | W | 0 | 0.69 | -0.69 | -13 | 0.7 | -0.7 | -14 | Yes | |
| 5 | 2026-02-08 | Motumi, T (Tsepe) | GTP | 1428.2 | 1442.3 | B | 0 | 0.51 | -0.51 | -9.6 | 0.5 | -0.5 | -10 | Yes | |