PLAYER PAGE
Judith Pretorius
2130154012Ekurhuleni (GE)Personal
Main rating
| Rating | 1229.8 |
| K-factor | 36 |
| Floor | 739.1 |
| Highest | 1239.1 (2025-09-01) |
| Min/Max +/- allowed | 157 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 2.37 |
| SWe | 0.38 |
| Temp +/- | 13.6 |
| Penalties | 0 |
| Weight perform | 1215.7 |
| Final +/- | +13.6 |
| New Rating () | |
| Rating | 1243.4 |
| K-factor | 36 |
| Floor | 743.4 |
| Highest | 1243.4 (2026-04-01) |
| Min/Max +/- allowed | 155.9 |
Standard rating
| Rating | 1210.7 |
| K-factor | 36 |
| Floor | 723 |
| Highest | 1223 (2025-09-01) |
| Min/Max +/- allowed | 160.5 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1149.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1210.7 |
| K-factor | 36 |
| Floor | 723 |
| Highest | 1223 (2025-09-01) |
| Min/Max +/- allowed | 160.5 |
Rapid rating
| Rating | 1261.9 |
| K-factor | 36 |
| Floor | 788.6 |
| Highest | 1422.8 (2024-04-01) |
| Min/Max +/- allowed | 120.7 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 2.64 |
| SWe | 0.36 |
| Temp +/- | 13.1 |
| Penalties | 0 |
| Weight perform | 1154.8 |
| Final +/- | +13.1 |
| New Rating () | |
| Rating | 1275.1 |
| K-factor | 36 |
| Floor | 788.6 |
| Highest | 1422.8 (2024-04-01) |
| Min/Max +/- allowed | 120.7 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Kemptonpark Cluster 2026 (U13 Girls) | Rapid | 2026-04-18 | 2026-04-18 | Ekurhuleni (GE) | 5 | 1229.8 | 5 | 3 | 1343.8 | 13.6 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Ekurhuleni 1st Standard Tournament 2026 (D) | Standard | 2026-02-14 | 2026-02-14 | Ekurhuleni (GE) | 5 | 1192.2 | 5 | 3 | 1498 | 28.7 | Details |
| 2 | Ekurhuleni Trial 4 2025 (E) | Standard | 2025-09-21 | 2025-09-21 | Ekurhuleni (GE) | 5 | 1239.1 | 5 | 0.5 | 883.9 | -34 | Details |
| 3 | Ekurhuleni North Schools Teams 2025 (U13 Open) | Standard | 2025-08-16 | 2025-08-16 | Ekurhuleni (GE) | 5 | 1191.7 | 4 | 3 | 1455 | 20.6 | Details |
| 4 | Kempton Park Team Clusters LS 2025 (U13) | Rapid | 2025-07-26 | 2025-07-26 | Ekurhuleni (GE) | 5 | 1191.7 | 3 | 2 | 1339 | 5.8 | Details |
| 5 | Ekurhuleni Trial 2 2025 (E) | Standard | 2025-06-21 | 2025-06-21 | Ekurhuleni (GE) | 5 | 1195.4 | 5 | 0.5 | 856.3 | -32.4 | Details |
| 6 | Kemptonpark School Cluster 2025 (U13 Girls) | Rapid | 2025-06-07 | 2025-06-07 | Ekurhuleni (GE) | 5 | 1195.4 | 5 | 3 | 1368.2 | 11.6 | Details |
| 7 | Ekurhuleni Closed 2024 (U12) | Standard | 2024-09-21 | 2024-09-21 | Ekurhuleni (GE) | 5 | 1217.4 | 5 | 1.5 | 1121.1 | -8.8 | Details |
| 8 | Ekurhuleni North Schools Finals - Teams 2024 (U13 Girls) | Rapid | 2024-08-02 | 2024-08-02 | Ekurhuleni (GE) | 5 | 1217.4 | 5 | 1 | 931.8 | -19.8 | Details |
| 9 | Ekurhuleni North Schools Finals - Teams 2024 (U11 Open) | Standard | 2024-08-03 | 2024-08-03 | Ekurhuleni (GE) | 5 | 1217.4 | 5 | 3.5 | 1377.3 | 16.3 | Details |
| 10 | Ekurhuleni North Primary Schools District Individual Finals 2024 (U11 Girls) | Standard | 2024-05-11 | 2024-05-11 | Ekurhuleni (GE) | 5 | 1202.5 | 5 | 3 | 1292.3 | 8.3 | Details |
| 11 | Kempton Park Cluster Teams League 2024 (U13 Girls) | Rapid | 2024-04-13 | 2024-04-13 | Ekurhuleni (GE) | 6 | 1159.1 | 6 | 5 | 1444.1 | 24.3 | Details |
| 12 | Kempton Park Cluster Individuals 2024 (U11 Girls) | Rapid | 2024-03-02 | 2024-03-02 | Ekurhuleni (GE) | 5 | 1139 | 5 | 3 | 1290.2 | 11.2 | Details |
| 13 | 2024 Gauteng Inter-Region Chess Championship (U12 Girls B) | Standard | 2024-01-13 | 2024-01-14 | Tshwane (GTP) | 5 | 1149.5 | 5 | 2 | 1105.4 | -5.8 | Details |
| 14 | 2023 Ekurhuleni North District Schools Finals (U11) | Standard | 2023-07-29 | 2023-07-29 | Ekurhuleni (GE) | 5 | 1147.7 | 1 | 0 | 735.5 | -8.8 | Details |
| 15 | 2023 Ekurhuleni North District Schools Finals (U11 Reserves) | Standard | 2023-07-29 | 2023-07-29 | Ekurhuleni (GE) | 5 | 1147.7 | 4 | 2.5 | 1272.4 | 9.8 | Details |
| 16 | Ekurhuleni Chess Trial 3 2023 (U12) | Standard | 2023-06-17 | 2023-06-17 | Ekurhuleni (GE) | 5 | 1157 | 5 | 2 | 1096.9 | -5.1 | Details |
| 17 | Ekurhuleni North Schools Individual Finals 2023 (U11 Girls) | Standard | 2023-05-12 | 2023-05-12 | Ekurhuleni (GE) | 5 | 1135.8 | 5 | 3 | 1250.8 | 12 | Details |
| 18 | Ekurhuleni Trials 2 2023 (U12) | Standard | 2023-04-22 | 2023-04-22 | Ekurhuleni (GE) | 5 | 1200 | 4 | 0 | 745.5 | -35.5 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 3 |
| Draws | 0 |
| Losses | 2 |
| White | 3 |
| Black | 2 |
| White wins | 2 |
| Black wins | 1 |
| Score | 3 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1258.8 |
| Performance | 1343.8 |
Game statistics ()
| Games | 10 |
| Wins | 6 |
| Draws | 0 |
| Losses | 4 |
| White | 6 |
| Black | 4 |
| White wins | 4 |
| Black wins | 2 |
| Score | 6 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1335.9 |
| Performance | 1420.9 |
Game statistics (History)
| Games | 87 |
| Wins | 37 |
| Draws | 9 |
| Losses | 41 |
| White | 43 |
| Black | 44 |
| White wins | 16 |
| Black wins | 21 |
| Score | 41.5 |
| Percent | 47.7 |
| Dp | -19.5 |
| AOR | 1219.4 |
| Performance | 1199.9 |
Rankings (Main)
| National | |
| Overall | 10144 |
| Gender | 2032 |
| Age group | 1687 |
| Gender/Age | 456 |
| Provincial | |
| Overall | 3380 |
| Gender | 699 |
| Age group | 570 |
| Gender/Age | 158 |
| Regional | |
| Overall | 772 |
| Gender | 200 |
| Age group | 140 |
| Gender/Age | 46 |
Rankings (Standard)
| National | |
| Overall | 9637 |
| Gender | 2119 |
| Age group | 1693 |
| Gender/Age | 481 |
| Provincial | |
| Overall | 3372 |
| Gender | 747 |
| Age group | 608 |
| Gender/Age | 172 |
| Regional | |
| Overall | 679 |
| Gender | 187 |
| Age group | 124 |
| Gender/Age | 38 |
Rankings (Rapid)
| National | |
| Overall | 2671 |
| Gender | 511 |
| Age group | 512 |
| Gender/Age | 142 |
| Provincial | |
| Overall | 500 |
| Gender | 97 |
| Age group | 84 |
| Gender/Age | 26 |
| Regional | |
| Overall | 170 |
| Gender | 55 |
| Age group | 40 |
| Gender/Age | 13 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 5 |
| Score | 3 |
| Percent | 60 |
| Aor | 1258.8 |
| Dp | 85 |
| Prat | 1343.8 |
Performance ()
| Games | 10 |
| Score | 6 |
| Percent | 60 |
| Aor | 1335.9 |
| Dp | 85 |
| Prat | 1420.9 |
Performance (12 months)
| Games | 32 |
| Score | 15 |
| Percent | 46.9 |
| Aor | 1263.7 |
| Dp | -26.6 |
| Prat | 1237.1 |
Performance (History)
| Games | 87 |
| Score | 41.5 |
| Percent | 47.7 |
| Aor | 1219.4 |
| Dp | -19.5 |
| Prat | 1199.9 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Van Wyk, J (Jamanique) | 3 | 3 | 0 | Ekurhuleni Chess Trial 3 2023 (U12) | Ekurhuleni Trial 4 2025 (E) | Details |
| Overall | 2 | Janse Van Vuuren, E (Estiaan) | 3 | 0 | 3 | Ekurhuleni Closed 2024 (U12) | Ekurhuleni Trial 4 2025 (E) | Details |
| Overall | 3 | Leimecke, M (Maya) | 3 | 2 | 1 | Kempton Park Cluster Teams League 2024 (U13 Girls) | Ekurhuleni North Schools Finals - Teams 2024 (U13 Girls) | Details |
| Overall | 4 | Terwin, J (Jordin) | 2 | 0 | 2 | Ekurhuleni Trial 2 2025 (E) | Ekurhuleni Trial 4 2025 (E) | Details |
| Overall | 5 | Van Niekerk, N (Nina) | 2 | 1 | 1 | Kempton Park Cluster Teams League 2024 (U13 Girls) | Kempton Park Cluster Teams League 2024 (U13 Girls) | Details |
| Standard | 1 | Van Wyk, J (Jamanique) | 3 | 3 | 0 | Ekurhuleni Chess Trial 3 2023 (U12) | Ekurhuleni Trial 4 2025 (E) | Details |
| Standard | 2 | Janse Van Vuuren, E (Estiaan) | 3 | 0 | 3 | Ekurhuleni Closed 2024 (U12) | Ekurhuleni Trial 4 2025 (E) | Details |
| Standard | 3 | Terwin, J (Jordin) | 2 | 0 | 2 | Ekurhuleni Trial 2 2025 (E) | Ekurhuleni Trial 4 2025 (E) | Details |
| Standard | 4 | Mpye, K (Karabo) | 2 | 2 | 0 | Ekurhuleni Trial 2 2025 (E) | Ekurhuleni Trial 4 2025 (E) | Details |
| Standard | 5 | Chisango, R (Ryan) | 2 | 0 | 2 | Ekurhuleni Trial 2 2025 (E) | Ekurhuleni Trial 4 2025 (E) | Details |
| Rapid | 1 | Leimecke, M (Maya) | 3 | 2 | 1 | Kempton Park Cluster Teams League 2024 (U13 Girls) | Ekurhuleni North Schools Finals - Teams 2024 (U13 Girls) | Details |
| Rapid | 2 | Van Niekerk, N (Nina) | 2 | 1 | 1 | Kempton Park Cluster Teams League 2024 (U13 Girls) | Kempton Park Cluster Teams League 2024 (U13 Girls) | Details |
| Rapid | 3 | Fleming, B (Bellamae) | 2 | 1 | 1 | Kempton Park Cluster Teams League 2024 (U13 Girls) | Kempton Park Cluster Teams League 2024 (U13 Girls) | Details |