Chess South Africa
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Chess South Africa
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:
2024/06/08 (17 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1134.2
Current Weighted rating
1180.8
Current Weighted performance
1095.0
Current official/published rating (highest between Raw, WR and WP)
1180.8
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
10
Score (S)
4.0
Expected score (We)
3.74
Difference (S-We)
0.22
Current Raw change (no limits, including tournament time weight)
7.8
Current min/max change allowed (with limits)
±182.1
Current Raw change used (final)
7.8
Projected new Raw rating
1142.0
Projected new Weighed rating
1085.7
Projected new Weighted performance
1140.8
Projected new final Raw rating (if new WP > new Raw)
1142.0
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1142.0
Projected effective change (new Official - current Official)
-38.9
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 rating
1129.5
Current Weighted rating
1177.9
Current Weighted performance
1105.9
Current official/published rating (highest between Raw, WR and WP)
1177.9
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
10
Score (S)
4.0
Expected score (We)
3.67
Difference (S-We)
0.33
Current Raw change (no limits, including tournament time weight)
11.9
Current min/max change allowed (with limits)
±183.3
Current Raw change used (final)
11.9
Projected new Raw rating
1141.4
Projected new Weighed rating
1082.9
Projected new Weighted performance
1140.8
Projected new final Raw rating (if new WP > new Raw)
1141.4
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1141.4
Projected effective change (new Official - current Official)
-36.6
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 rating
1160.8
Current Weighted rating
1192.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1192.3
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
s
Games played this month
0
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 rating
1160.8
Projected new Weighed rating
1096.6
Projected new Weighted performance
660.3
Projected new final Raw rating (if new WP > new Raw)
1160.8
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1160.8
Projected effective change (new Official - current Official)
-31.5
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 rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
0
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 rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
History
Tournament:
Second Knight Riders Juniors Open Chess Tournament 2024 (U8)
Start:
2024/06/08
End:
2024/06/08
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.0
Main rating:
1134.2
Rating gain/loss:
4.5
Type rating:
1129.5
Rating gain/loss:
7.9
Analysis
Tournament:
JMC Trinityhouse Little Falls 2024 (U8)
Start:
2024/06/02
End:
2024/06/02
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.0
Main rating:
1134.2
Rating gain/loss:
3.3
Type rating:
1129.5
Rating gain/loss:
4.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
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
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
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
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
50
18
3
29
19.5
39.0
-93.5
1212.6
1119.1
White
25
8
2
15
9.0
36.0
-119.0
1211.2
1092.2
Black
25
10
1
14
10.5
42.0
-68.0
1214.0
1146.0
Standard
All
38
13
3
22
14.5
38.2
-100.7
1216.5
1115.8
White
19
5
2
12
6.0
31.6
-156.6
1213.6
1057.0
Black
19
8
1
10
8.5
44.7
-44.7
1219.3
1174.6
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
50
18
3
29
19.5
39.0
-93.5
1212.6
1119.1
White
25
8
2
15
9.0
36.0
-119.0
1211.2
1092.2
Black
25
10
1
14
10.5
42.0
-68.0
1214.0
1146.0
Standard
All
38
13
3
22
14.5
38.2
-100.7
1216.5
1115.8
White
19
5
2
12
6.0
31.6
-156.6
1213.6
1057.0
Black
19
8
1
10
8.5
44.7
-44.7
1219.3
1174.6
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
2170149596
Mabugu, R (Refilwe)
4
1.5
1
1
2
37.5
1148.0
-106.3
1041.8
View list
2
1170300288
Van Zijl, A (Adolf)
2
2.0
2
0
0
100.0
1147.0
425.0
1572.0
View list
3
2170303049
Levitan, E (Eliana)
2
1.0
1
0
1
50.0
1140.6
0.0
1140.6
View list
4
1170157327
Bekker, J (Jacobus)
2
0.0
0
0
2
0.0
1167.1
-425.0
742.1
View list
5
2170151830
Malemane, A (Atlehang Faith)
2
0.0
0
0
2
0.0
1173.5
-425.0
748.5
View list
6
1170157329
Roberts, M (Marthinus)
2
0.0
0
0
2
0.0
1180.6
-425.0
755.6
View list
7
1170147325
Stelloh, A (Alexander)
2
0.0
0
0
2
0.0
1154.1
-425.0
729.1
View list
8
1180305181
Logan, I (Irvine)
1
1.0
1
0
0
100.0
1147.0
425.0
1572.0
View list
9
1170300279
Bender, D (Divan)
1
1.0
1
0
0
100.0
1134.2
425.0
1559.2
View list
10
1170306085
Boungou-Poati, U (U'Tamsi)
1
1.0
1
0
0
100.0
1134.2
425.0
1559.2
View list
11
1170302191
Davids, N (Noah)
1
1.0
1
0
0
100.0
1148.5
425.0
1573.5
View list
12
2170191352
Kgwale, K (Keratilwe)
1
1.0
1
0
0
100.0
1161.2
425.0
1586.2
View list
13
1160154139
Haupt, D (Dawid)
1
1.0
1
0
0
100.0
1149.8
425.0
1574.8
View list
14
2130302195
Mkhapheni, A (Ayakha)
1
1.0
1
0
0
100.0
1148.5
425.0
1573.5
View list
15
2170191631
Muller, L (Limay)
1
1.0
1
0
0
100.0
1161.2
425.0
1586.2
View list
16
1180192091
Peter, B (Bulumko)
1
1.0
1
0
0
100.0
1161.2
425.0
1586.2
View list
17
2160301381
Pistorius, A (Anja)
1
1.0
1
0
0
100.0
1161.2
425.0
1586.2
View list
18
2170300020
Prinsloo, E (Elsje)
1
1.0
1
0
0
100.0
1149.8
425.0
1574.8
View list
19
1110150087
Truter, J (Jake)
1
1.0
1
0
0
100.0
1148.5
425.0
1573.5
View list
20
1170300022
Van Zyl, E (Elijah)
1
1.0
1
0
0
100.0
1149.8
425.0
1574.8
View list