PLAYER TOURNAMENT DETAILS
Zac Gemmell
1090116569Johannesburg Metro (GJM)Tournament details
| Tour Id | 20251978 |
| Group Id | 20251967 |
| Name | South African Open 2025 |
| Section | B |
| Rounds | 11 |
| Format | Swiss |
| Type | Classical |
| Start | 2025-06-28 |
| End | 2025-07-05 |
| Submitted | 2025-07-06 |
| Rated | 2025-07-06 |
| Submit age weight | 1 |
| Host | Johannesburg Metro (GJM) |
| Total time | 120 |
| Time weight | 1 |
| Official results | Official results |
General
| Games | 11 |
| Score | 5 |
| Percent | 45.5 |
| Dp | -38.6 |
| Aor | 1431.3 |
| Perform | 1392.6 |
| Penalties | 0 |
| Wins | 5 |
| Draws | 0 |
| Losses | 6 |
| White | 5 |
| Black | 6 |
| White wins | 2 |
| Black wins | 3 |
| Default wins | 0 |
| Default losses | 0 |
| Byes | 0 |
| Half byes | 0 |
| Rank | 73 |
| Final Pos | 104 |
| Share Pos | 103 |
| Count for rating | Yes |
Analysis (Main)
| Rating | 1592.9 |
| K-factor | 20 |
| Score | 5 |
| Expected score | 7.53 |
| Score - Expected score | -2.53 |
| Rating +/- | -50.6 |
Analysis (Type)
| Rating | 1589 |
| K-factor | 20 |
| Score | 5 |
| Expected score | 7.5 |
| Score - Expected score | -2.5 |
| Rating +/- | -50 |
Opponents
| Round | Date | Opponent | Fed | Title | Main | Type | Col | Res | Main | Type | Cfr | ||||
| We | Swe | +/- | We | Swe | +/- | ||||||||||
| 1 | 2025-06-28 | Segooa, MSI (Morakau Sentlhane Isaac) | CSA | 1200 | 1200 | B | 1 | 0.92 | 0.08 | 1.6 | 0.91 | 0.09 | 1.8 | Yes | |
| 2 | 2025-06-28 | Sadie, JJH (Johan Jacobus Hendrik) | GJM | 1603.7 | 1587.5 | W | 0 | 0.53 | -0.53 | -10.6 | 0.54 | -0.54 | -10.8 | Yes | |
| 3 | 2025-06-29 | Buthelezi, S (Sikhulile) | NCF | 1307.5 | 1330 | B | 0 | 0.79 | -0.79 | -15.8 | 0.76 | -0.76 | -15.2 | Yes | |
| 4 | 2025-06-29 | Cronje, J (Johannes Christiaan) | WCT | 1427.4 | 1416.3 | W | 1 | 0.73 | 0.27 | 5.4 | 0.74 | 0.26 | 5.2 | Yes | |
| 5 | 2025-06-30 | Dass, K (Kaylon) | GJM | 1248 | 1227.4 | B | 1 | 0.86 | 0.14 | 2.8 | 0.88 | 0.12 | 2.4 | Yes | |
| 6 | 2025-07-01 | Okechukwu, E (Emmanuel) | GE | 1388.8 | 1392.3 | W | 1 | 0.78 | 0.22 | 4.4 | 0.77 | 0.23 | 4.6 | Yes | |
| 7 | 2025-07-02 | Landitho, M (Mzwandile) | GJM | 1654.9 | 1655.2 | B | 0 | 0.39 | -0.39 | -7.8 | 0.38 | -0.38 | -7.6 | Yes | |
| 8 | 2025-07-03 | Memeh, C (Chime) | GJM | 1763.2 | 1783.3 | W | 0 | 0.34 | -0.34 | -6.8 | 0.32 | -0.32 | -6.4 | Yes | |
| 9 | 2025-07-04 | Ngobeni, N (Ntumbuluko) | GWR | 1417.8 | 1416.1 | B | 1 | 0.66 | 0.34 | 6.8 | 0.66 | 0.34 | 6.8 | Yes | |
| 10 | 2025-07-04 | Gwangwa, T (Thapelo) | LCP | 1295.3 | 1294.4 | W | 0 | 0.89 | -0.89 | -17.8 | 0.88 | -0.88 | -17.6 | Yes | |
| 11 | 2025-07-05 | Niemann, PWL (Petrus Wessel Le Roux) | GE | 1437.5 | 1419.9 | B | 0 | 0.64 | -0.64 | -12.8 | 0.66 | -0.66 | -13.2 | Yes | |