Player Page

Joubert, Z (Zani)
Dob: 2017/05/03 (U8)
Gender: Female
Chess SA id: 2170191603
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/10/04 (41 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1089.2
Current Weighted rating1156.2
Current Weighted performance1000.9
Current official/published rating (highest between Raw, WR and WP)1156.2
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±194.2
Current Raw change used (final)0.0
Projected new Raw rating1089.2
Projected new Weighed rating1062.4
Projected new Weighted performance1000.9
Projected new final Raw rating (if new WP > new Raw)1089.2
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1089.2
Projected effective change (new Official - current Official)-67.0
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1080.2
Current Weighted rating1152.6
Current Weighted performance1000.9
Current official/published rating (highest between Raw, WR and WP)1152.6
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±196.7
Current Raw change used (final)0.0
Projected new Raw rating1080.2
Projected new Weighed rating1059.0
Projected new Weighted performance1000.9
Projected new final Raw rating (if new WP > new Raw)1080.2
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1080.2
Projected effective change (new Official - current Official)-72.4
s
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1160.8
Current Weighted rating1179.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1179.6
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±175.3
Current Raw change used (final)0.0
Projected new Raw rating1160.8
Projected new Weighed rating1084.6
Projected new Weighted performance627.3
Projected new final Raw rating (if new WP > new Raw)1160.8
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1160.8
Projected effective change (new Official - current Official)-18.8
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
13 Gauteng Top Schools 2024 (U13 Girls) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 4 0.5 1119.1 1115.1 Analysis
12 Bojanala's FIDE In The Sparkling Waters 2024 (Young Junior Champs) 2024/08/17 2024/08/17 Bojanala Platina (NBR) Standard 120 1.00 5 5 2.0 1142.0 1141.4 Analysis
11 JMC Closed 2024 (U8) 2024/08/09 2024/08/09 Johannesburg Metro (GJM) Standard 60 0.83 5 4 1.0 1142.0 1141.4 Analysis
10 Second Knight Riders Juniors Open Chess Tournament 2024 (U8) 2024/06/08 2024/06/08 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1134.2 1129.5 Analysis
9 JMC Trinityhouse Little Falls 2024 (U8) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1134.2 1129.5 Analysis
8 Chess Power House May Open 2024 (E) 2024/05/25 2024/05/25 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1147.0 1141.0 Analysis
7 JMC Crawford International Sandton 2024 (U8) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 4 1.0 1147.0 1141.0 Analysis
6 JMC Helpmekaar Kollege Tournament 2024 (U8) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 4 1.0 1147.0 1141.0 Analysis
5 Hermanus Chess Club Open 2024 (Development) 2024/04/20 2024/04/20 Overberg (WOS) Rapid 20 0.47 7 7 3.0 1148.5 1178.4 Analysis
4 CPH St Andrew's Rapid 2024 (D) 2024/03/30 2024/03/30 Ekurhuleni (GE) Rapid 20 0.47 5 5 2.0 1161.2 1200.0 Analysis
3 2024 Chris Greyling Open Chess Tournament (F) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1161.2 1151.4 Analysis
2 2024 Tshwane Chess AHS Open Chess Tournament (F) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1149.8 1137.4 Analysis
1 JMC Kick Off Tournament 2024 (U8) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.0 1200.0 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
13 Gauteng Top Schools 2024 (U13 Girls) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 4 0.5 1119.1 1115.1 Analysis
12 Bojanala's FIDE In The Sparkling Waters 2024 (Young Junior Champs) 2024/08/17 2024/08/17 Bojanala Platina (NBR) Standard 120 1.00 5 5 2.0 1142.0 1141.4 Analysis
11 JMC Closed 2024 (U8) 2024/08/09 2024/08/09 Johannesburg Metro (GJM) Standard 60 0.83 5 4 1.0 1142.0 1141.4 Analysis
10 Second Knight Riders Juniors Open Chess Tournament 2024 (U8) 2024/06/08 2024/06/08 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1134.2 1129.5 Analysis
9 JMC Trinityhouse Little Falls 2024 (U8) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1134.2 1129.5 Analysis
8 Chess Power House May Open 2024 (E) 2024/05/25 2024/05/25 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1147.0 1141.0 Analysis
7 JMC Crawford International Sandton 2024 (U8) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 4 1.0 1147.0 1141.0 Analysis
6 JMC Helpmekaar Kollege Tournament 2024 (U8) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 4 1.0 1147.0 1141.0 Analysis
5 Hermanus Chess Club Open 2024 (Development) 2024/04/20 2024/04/20 Overberg (WOS) Rapid 20 0.47 7 7 3.0 1148.5 1178.4 Analysis
4 CPH St Andrew's Rapid 2024 (D) 2024/03/30 2024/03/30 Ekurhuleni (GE) Rapid 20 0.47 5 5 2.0 1161.2 1200.0 Analysis
3 2024 Chris Greyling Open Chess Tournament (F) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1161.2 1151.4 Analysis
2 2024 Tshwane Chess AHS Open Chess Tournament (F) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1149.8 1137.4 Analysis
1 JMC Kick Off Tournament 2024 (U8) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 63 21 4 38 23.0 36.5 -114.7 1213.5 1098.8
White 31 9 3 19 10.5 33.9 -137.1 1204.7 1067.6
Black 32 12 1 19 12.5 39.1 -93.0 1222.0 1129.0
Standard All 51 16 4 31 18.0 35.3 -125.0 1216.6 1091.6
White 25 6 3 16 7.5 30.0 -170.0 1205.0 1035.0
Black 26 10 1 15 10.5 40.4 -81.7 1227.7 1146.0
Rapid All 12 5 0 7 5.0 41.7 -70.8 1200.5 1129.7
White 6 3 0 3 3.0 50.0 0.0 1203.8 1203.8
Black 6 2 0 4 2.0 33.3 -141.7 1197.3 1055.6
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 63 21 4 38 23.0 36.5 -114.7 1213.5 1098.8
White 31 9 3 19 10.5 33.9 -137.1 1204.7 1067.6
Black 32 12 1 19 12.5 39.1 -93.0 1222.0 1129.0
Standard All 51 16 4 31 18.0 35.3 -125.0 1216.6 1091.6
White 25 6 3 16 7.5 30.0 -170.0 1205.0 1035.0
Black 26 10 1 15 10.5 40.4 -81.7 1227.7 1146.0
Rapid All 12 5 0 7 5.0 41.7 -70.8 1200.5 1129.7
White 6 3 0 3 3.0 50.0 0.0 1203.8 1203.8
Black 6 2 0 4 2.0 33.3 -141.7 1197.3 1055.6
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2170149596 Mabugu, R (Refilwe) 4 1.5 1 1 2 37.5 1148.0 -106.3 1041.8 View list
2 1170157327 Bekker, J (Jacobus) 3 0.0 0 0 3 0.0 1158.7 -425.0 733.7 View list
3 1170147325 Stelloh, A (Alexander) 3 0.0 0 0 3 0.0 1150.1 -425.0 725.1 View list
4 1170300288 Van Zijl, A (Adolf) 2 2.0 2 0 0 100.0 1147.0 425.0 1572.0 View list
5 2170303049 Levitan, E (Eliana) 2 1.0 1 0 1 50.0 1140.6 0.0 1140.6 View list
6 2170151830 Malemane, A (Atlehang Faith) 2 0.0 0 0 2 0.0 1173.5 -425.0 748.5 View list
7 1170157329 Roberts, M (Marthinus) 2 0.0 0 0 2 0.0 1180.6 -425.0 755.6 View list
8 1170162033 Sahoo, S (Shaurya) 2 0.0 0 0 2 0.0 1138.1 -425.0 713.1 View list
9 2170191352 Kgwale, K (Keratilwe) 1 1.0 1 0 0 100.0 1161.2 425.0 1586.2 View list
10 1160154139 Haupt, D (Dawid) 1 1.0 1 0 0 100.0 1149.8 425.0 1574.8 View list
11 1170300279 Bender, D (Divan) 1 1.0 1 0 0 100.0 1134.2 425.0 1559.2 View list
12 1170306085 Boungou-Poati, U (U'Tamsi) 1 1.0 1 0 0 100.0 1134.2 425.0 1559.2 View list
13 1170302191 Davids, N (Noah) 1 1.0 1 0 0 100.0 1148.5 425.0 1573.5 View list
14 1180309772 Coetsee, L (Luca) 1 1.0 1 0 0 100.0 1142.0 425.0 1567.0 View list
15 1180305181 Logan, I (Irvine) 1 1.0 1 0 0 100.0 1147.0 425.0 1572.0 View list
16 2180300285 Luus, A (Ava) 1 1.0 1 0 0 100.0 1142.0 425.0 1567.0 View list
17 2130302195 Mkhapheni, A (Ayakha) 1 1.0 1 0 0 100.0 1148.5 425.0 1573.5 View list
18 2170191631 Muller, L (Limay) 1 1.0 1 0 0 100.0 1161.2 425.0 1586.2 View list
19 1180192091 Peter, B (Bulumko) 1 1.0 1 0 0 100.0 1161.2 425.0 1586.2 View list
20 2160301381 Pistorius, A (Anja) 1 1.0 1 0 0 100.0 1161.2 425.0 1586.2 View list