PLAYER PAGE
Zani Joubert
2170191603Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1266.2 |
| K-factor | 36 |
| Floor | 804.9 |
| Highest | 1304.9 (2026-03-01) |
| Min/Max +/- allowed | 143 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1211.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1266.2 |
| K-factor | 36 |
| Floor | 804.9 |
| Highest | 1304.9 (2026-03-01) |
| Min/Max +/- allowed | 142.8 |
Standard rating
| Rating | 1255.3 |
| K-factor | 36 |
| Floor | 804.9 |
| Highest | 1304.9 (2026-03-01) |
| Min/Max +/- allowed | 142.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1211.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1255.3 |
| K-factor | 36 |
| Floor | 804.9 |
| Highest | 1304.9 (2026-03-01) |
| Min/Max +/- allowed | 142.8 |
Rapid rating
| Rating | 1173.7 |
| 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 | 1173.7 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 JMCA Open Chess Tournament (U10) | Standard | 2026-08-15 | 2026-08-15 | Tshwane (GTP) | 5 | 1266.2 | 5 | 2 | 1159.1 | -21.7 | Details |
| 2 | JMC Closed 2026 (U10) | Standard | 2026-08-01 | 2026-08-01 | Johannesburg Metro (GJM) | 5 | 1266.2 | 5 | 2 | 1238.9 | -9 | Details |
| 3 | JMC Trinityhouse Randpark Ridge 2026 (U10) | Standard | 2026-06-27 | 2026-06-27 | Johannesburg Metro (GJM) | 5 | 1304.9 | 5 | 2.5 | 1293 | -0.8 | Details |
| 4 | JMC Helpmekaar 2026 (U10) | Standard | 2026-05-31 | 2026-05-31 | Johannesburg Metro (GJM) | 5 | 1304.9 | 5 | 2 | 1268.9 | -7.2 | Details |
| 5 | 2026 Blou Bull Chess Tournament (U10) | Standard | 2026-02-21 | 2026-02-21 | Tshwane (GTP) | 5 | 1268 | 5 | 3 | 1380.2 | 18.4 | Details |
| 6 | JMC Trinityhouse Little Falls (U10) | Standard | 2026-02-28 | 2026-02-28 | Johannesburg Metro (GJM) | 5 | 1268 | 4 | 2 | 1339.4 | 9.9 | Details |
| 7 | 2026 Constantiapark Open Chess Tournament (U10) | Standard | 2026-02-14 | 2026-02-14 | Tshwane (GTP) | 5 | 1290.5 | 5 | 2.5 | 1300 | 0.2 | Details |
| 8 | West Rand Open 2026 (U10) | Standard | 2026-02-07 | 2026-02-07 | West Rand (GWR) | 5 | 1290.5 | 5 | 2 | 1232.4 | -6.5 | Details |
| 9 | 2026 Tshwane Chess Registration Tournament (U10) | Standard | 2026-01-31 | 2026-01-31 | Tshwane (GTP) | 5 | 1290.5 | 5 | 2 | 1207.7 | -8.8 | Details |
| 10 | Gauteng Inter-Region at Emerald Resort 2025 (U8+U10 Girls) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1241.5 | 5 | 3.5 | 1495.8 | 27.3 | Details |
| 11 | JMC Closed 2025 (U10) | Standard | 2025-08-09 | 2025-08-09 | Johannesburg Metro (GJM) | 5 | 1238.6 | 5 | 2 | 1249 | 1.7 | Details |
| 12 | Third Knight Riders Junior Open 2025 (U10) | Standard | 2025-06-22 | 2025-06-22 | Johannesburg Metro (GJM) | 5 | 1173.5 | 5 | 3 | 1446.8 | 27.2 | Details |
| 13 | West Rand Open 2.0 2025 (U10) | Standard | 2025-06-07 | 2025-06-07 | West Rand (GWR) | 5 | 1173.5 | 5 | 2 | 1168.1 | -1.3 | Details |
| 14 | JMC Helpmekaar 2025 (U10) | Standard | 2025-06-01 | 2025-06-01 | Johannesburg Metro (GJM) | 5 | 1173.5 | 5 | 2 | 1254.6 | 7 | Details |
| 15 | JMC Crawford Sandton 2025 (U10) | Standard | 2025-05-10 | 2025-05-10 | Johannesburg Metro (GJM) | 5 | 1235.3 | 5 | 0 | 891.8 | -34.4 | Details |
| 16 | South African Junior Closed Chess Championships 2025 (U8 Girls) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1196.7 | 9 | 4.5 | 1295.1 | 21.4 | Details |
| 17 | 2025 Chris Greyling Open Chess Tournament (U10) | Standard | 2025-03-15 | 2025-03-15 | Tshwane (GTP) | 5 | 1142.9 | 5 | 2 | 1196.8 | 4.5 | Details |
| 18 | MCA Summer March 2025 (Newcomer) | Standard | 2025-03-08 | 2025-03-08 | Johannesburg Metro (GJM) | 5 | 1142.9 | 5 | 2.5 | 1275.7 | 13.3 | Details |
| 19 | JMC Kick Off 2025 (U10) | Standard | 2025-02-02 | 2025-02-02 | Johannesburg Metro (GJM) | 5 | 1144.6 | 5 | 1 | 1122.1 | -1.7 | Details |
| 20 | 2025 Tshwane Chess OPEN Registration Tournament (U10) | Standard | 2025-01-25 | 2025-01-25 | Tshwane (GTP) | 5 | 1128.1 | 5 | 2 | 1228.7 | 9 | Details |
| 21 | Gauteng Inter-Region at UJ 2024 (U8 Mixed) | Standard | 2024-12-06 | 2024-12-07 | Johannesburg Metro (GJM) | 5 | 1089.2 | 5 | 4 | 1290 | 21.6 | Details |
| 22 | Gauteng Top Schools 2024 (U13 Girls) | Standard | 2024-10-04 | 2024-10-04 | Ekurhuleni (GE) | 5 | 1119.1 | 4 | 0.5 | 889.6 | -16.6 | Details |
| 23 | Bojanala's FIDE In The Sparkling Waters 2024 (Young Junior Champs) | Classical | 2024-08-17 | 2024-08-17 | Bojanala Platina (NBR) | 5 | 1142 | 5 | 2 | 1101.9 | -5.6 | Details |
| 24 | JMC Closed 2024 (U8) | Standard | 2024-08-09 | 2024-08-09 | Johannesburg Metro (GJM) | 5 | 1142 | 4 | 1 | 1050.4 | -7.1 | Details |
| 25 | Second Knight Riders Juniors Open Chess Tournament 2024 (U8) | Standard | 2024-06-08 | 2024-06-08 | Johannesburg Metro (GJM) | 5 | 1134.2 | 5 | 2 | 1170.6 | 2.5 | Details |
| 26 | JMC Trinityhouse Little Falls 2024 (U8) | Standard | 2024-06-02 | 2024-06-02 | Johannesburg Metro (GJM) | 5 | 1134.2 | 5 | 2 | 1159.5 | 1.8 | Details |
| 27 | Chess Power House May Open 2024 (E) | Standard | 2024-05-25 | 2024-05-25 | Johannesburg Metro (GJM) | 5 | 1147 | 5 | 2.5 | 1213.9 | 5.8 | Details |
| 28 | JMC Crawford International Sandton 2024 (U8) | Standard | 2024-05-11 | 2024-05-11 | Johannesburg Metro (GJM) | 5 | 1147 | 4 | 1 | 1008.9 | -11 | Details |
| 29 | JMC Helpmekaar Kollege Tournament 2024 (U8) | Standard | 2024-05-04 | 2024-05-04 | Johannesburg Metro (GJM) | 5 | 1147 | 4 | 1 | 1122 | -2 | Details |
| 30 | Hermanus Chess Club Open 2024 (Development) | Rapid | 2024-04-20 | 2024-04-20 | Overberg (WOS) | 7 | 1148.5 | 7 | 3 | 1131 | -0.8 | Details |
| 31 | CPH St Andrew's Rapid 2024 (D) | Rapid | 2024-03-30 | 2024-03-30 | Ekurhuleni (GE) | 5 | 1161.2 | 5 | 2 | 1128 | -2.3 | Details |
| 32 | 2024 Chris Greyling Open Chess Tournament (F) | Standard | 2024-03-16 | 2024-03-16 | Tshwane (GTP) | 5 | 1161.2 | 5 | 2 | 1105.2 | -4.8 | Details |
| 33 | 2024 Tshwane Chess AHS Open Chess Tournament (F) | Standard | 2024-02-24 | 2024-02-24 | Tshwane (GTP) | 5 | 1149.8 | 5 | 3 | 1220.4 | 6.1 | Details |
| 34 | JMC Kick Off Tournament 2024 (U8) | Standard | 2024-01-28 | 2024-01-28 | Johannesburg Metro (GJM) | 5 | 1200 | 5 | 1 | 905.7 | -27.9 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 44 |
| Wins | 19 |
| Draws | 2 |
| Losses | 23 |
| White | 23 |
| Black | 21 |
| White wins | 11 |
| Black wins | 8 |
| Score | 20 |
| Percent | 45.5 |
| Dp | -38.6 |
| AOR | 1305.9 |
| Performance | 1267.2 |
Game statistics (History)
| Games | 171 |
| Wins | 67 |
| Draws | 9 |
| Losses | 95 |
| White | 87 |
| Black | 84 |
| White wins | 33 |
| Black wins | 34 |
| Score | 71.5 |
| Percent | 41.8 |
| Dp | -69.6 |
| AOR | 1266.9 |
| Performance | 1197.3 |
Rankings (Main)
| National | |
| Overall | 7741 |
| Gender | 1481 |
| Age group | 402 |
| Gender/Age | 94 |
| Provincial | |
| Overall | 2671 |
| Gender | 527 |
| Age group | 143 |
| Gender/Age | 35 |
| Regional | |
| Overall | 654 |
| Gender | 105 |
| Age group | 38 |
| Gender/Age | 10 |
Rankings (Standard)
| National | |
| Overall | 7113 |
| Gender | 1468 |
| Age group | 406 |
| Gender/Age | 101 |
| Provincial | |
| Overall | 2576 |
| Gender | 544 |
| Age group | 145 |
| Gender/Age | 35 |
| Regional | |
| Overall | 601 |
| Gender | 107 |
| Age group | 40 |
| Gender/Age | 10 |
Rankings (Rapid)
| 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 |
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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 44 |
| Score | 20 |
| Percent | 45.5 |
| Aor | 1305.9 |
| Dp | -38.6 |
| Prat | 1267.2 |
Performance (12 months)
| Games | 49 |
| Score | 23.5 |
| Percent | 48 |
| Aor | 1307.9 |
| Dp | -17.3 |
| Prat | 1290.6 |
Performance (History)
| Games | 171 |
| Score | 71.5 |
| Percent | 41.8 |
| Aor | 1266.9 |
| Dp | -69.6 |
| Prat | 1197.3 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Stelloh, A (Alexander) | 5 | 3 | 2 | CPH St Andrew's Rapid 2024 (D) | JMC Trinityhouse Little Falls (U10) | Details |
| Overall | 2 | Malemane, A (Atlehang Faith) | 5 | 2 | 3 | JMC Kick Off Tournament 2024 (U8) | 2026 JMCA Open Chess Tournament (U10) | Details |
| Overall | 3 | Mabugu, R (Refilwe) | 4 | 3 | 1 | 2024 Tshwane Chess AHS Open Chess Tournament (F) | JMC Trinityhouse Little Falls 2024 (U8) | Details |
| Overall | 4 | Lochner, C (Calitz) | 4 | 3 | 1 | JMC Trinityhouse Little Falls 2024 (U8) | JMC Trinityhouse Little Falls (U10) | Details |
| Overall | 5 | Bekker, J (Jacobus) | 3 | 2 | 1 | JMC Kick Off Tournament 2024 (U8) | JMC Closed 2024 (U8) | Details |
| Standard | 1 | Malemane, A (Atlehang Faith) | 5 | 2 | 3 | JMC Kick Off Tournament 2024 (U8) | 2026 JMCA Open Chess Tournament (U10) | Details |
| Standard | 2 | Mabugu, R (Refilwe) | 4 | 3 | 1 | 2024 Tshwane Chess AHS Open Chess Tournament (F) | JMC Trinityhouse Little Falls 2024 (U8) | Details |
| Standard | 3 | Stelloh, A (Alexander) | 4 | 2 | 2 | JMC Helpmekaar Kollege Tournament 2024 (U8) | JMC Trinityhouse Little Falls (U10) | Details |
| Standard | 4 | Lochner, C (Calitz) | 4 | 3 | 1 | JMC Trinityhouse Little Falls 2024 (U8) | JMC Trinityhouse Little Falls (U10) | Details |
| Standard | 5 | Kgwale, K (Keratilwe) | 3 | 2 | 1 | 2024 Chris Greyling Open Chess Tournament (F) | South African Junior Closed Chess Championships 2025 (U8 Girls) | Details |