Chess South Africa
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Chess South Africa
Joubert, J (Joshua)
Dob:
2015/09/16 (U10)
Gender:
Male
Chess SA id:
1150134895
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/12/08 (2 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
1504.2
Current Weighted rating
1461.5
Current Weighted performance
1406.5
Current official/published rating (highest between Raw, WR and WP)
1504.2
Current highest rating achieved
1542.9
Current floor (min rating allowed)
1042.9
Current K-factor
32
Games played this month
5
Score (S)
4.0
Expected score (We)
2.77
Difference (S-We)
1.16
Current Raw change (no limits, including tournament time weight)
37.0
Current min/max change allowed (with limits)
±107.5
Current Raw change used (final)
37.0
Projected new Raw rating
1541.2
Projected new Weighed rating
1346.7
Projected new Weighted performance
1505.2
Projected new final Raw rating (if new WP > new Raw)
1541.2
Projected new highest rating
1542.9
Projected new floor
1042.9
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1541.2
Projected effective change (new Official - current Official)
+37.0
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 rating
1491.9
Current Weighted rating
1449.5
Current Weighted performance
1406.5
Current official/published rating (highest between Raw, WR and WP)
1491.9
Current highest rating achieved
1539.0
Current floor (min rating allowed)
1039.0
Current K-factor
32
Games played this month
5
Score (S)
4.0
Expected score (We)
2.85
Difference (S-We)
1.15
Current Raw change (no limits, including tournament time weight)
36.8
Current min/max change allowed (with limits)
±109.4
Current Raw change used (final)
36.8
Projected new Raw rating
1528.7
Projected new Weighed rating
1335.5
Projected new Weighted performance
1505.2
Projected new final Raw rating (if new WP > new Raw)
1528.7
Projected new highest rating
1539.0
Projected new floor
1039.0
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1528.7
Projected effective change (new Official - current Official)
+36.8
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 rating
1148.6
Current Weighted rating
1090.4
Current Weighted performance
1053.1
Current official/published rating (highest between Raw, WR and WP)
1148.6
Current highest rating achieved
1178.4
Current floor (min rating allowed)
678.4
Current K-factor
40
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)
±178.4
Current Raw change used (final)
0.0
Projected new Raw rating
1148.6
Projected new Weighed rating
1005.7
Projected new Weighted performance
1053.1
Projected new final Raw rating (if new WP > new Raw)
1148.6
Projected new highest rating
1178.4
Projected new floor
678.4
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1148.6
Projected effective change (new Official - current Official)
=0.0
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 rating
1034.2
Current Weighted rating
1034.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1034.2
Current highest rating achieved
1034.2
Current floor (min rating allowed)
534.2
Current K-factor
40
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)
±210.0
Current Raw change used (final)
0.0
Projected new Raw rating
1034.2
Projected new Weighed rating
951.5
Projected new Weighted performance
127.4
Projected new final Raw rating (if new WP > new Raw)
1034.2
Projected new highest rating
1034.2
Projected new floor
534.2
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1034.2
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Tournament:
Gauteng Inter-Region at UJ 2024 (U10 Open)
Start:
2024/12/07
End:
2024/12/08
Host:
GJM
Type:
Standard
Time:
90
Time weight:
0.94
Rounds:
5
Games:
5
Score:
4.0
Main rating:
1504.2
Rating gain/loss:
37.0
Type rating:
1491.9
Rating gain/loss:
36.8
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
17
Gauteng Inter-Region at UJ 2024 (U10 Open)
2024/12/07
2024/12/08
Johannesburg Metro (GJM)
Standard
90
0.94
5
5
4.0
1504.2
1491.9
Analysis
16
2024 Tshwane Chess Club Clash (Open)
2024/10/12
2024/10/12
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1537.9
1531.6
Analysis
15
Gauteng Top Schools 2024 (U11 Open)
2024/10/04
2024/10/04
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1537.9
1531.6
Analysis
14
Bojanala's FIDE In The Sparkling Waters 2024 (Junior Champs)
2024/08/17
2024/08/17
Bojanala Platina (NBR)
Standard
120
1.00
5
5
3.5
1542.9
1539.0
Analysis
13
JMC Closed 2024 (U10)
2024/08/09
2024/08/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1542.9
1539.0
Analysis
12
Second Knight Riders Juniors Open Chess Tournament 2024 (U10)
2024/06/08
2024/06/08
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1494.6
1501.7
Analysis
11
JMC Trinityhouse Little Falls 2024 (U10)
2024/06/02
2024/06/02
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.5
1494.6
1501.7
Analysis
10
Chess Power House May Open 2024 (D)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1352.8
1320.7
Analysis
9
JMC Crawford International Sandton 2024 (U10)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
5.0
1352.8
1320.7
Analysis
8
JMC Helpmekaar Kollege Tournament 2024 (U10)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1352.8
1320.7
Analysis
7
South African Junior Closed Chess Championship 2024 (U10 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
8
2.0
1352.8
1320.7
Analysis
6
Hermanus Chess Club Open 2024 (Intermediate)
2024/04/20
2024/04/20
Overberg (WOS)
Rapid
20
0.47
7
7
3.5
1374.0
1142.2
Analysis
5
CPH St Andrew's Rapid 2024 (C)
2024/03/30
2024/03/30
Ekurhuleni (GE)
Rapid
20
0.47
5
5
4.5
1342.3
1003.8
Analysis
4
2024 Tshwane Chess AHS Open Chess Tournament (C2)
2024/02/24
2024/02/24
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1408.2
1394.3
Analysis
3
2024 Blou Bul Open Chess Tournament (C)
2024/02/10
2024/02/10
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1408.2
1394.3
Analysis
2
JMC Kick Off Tournament 2024 (D)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1435.1
1423.4
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U10A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1435.1
1423.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
44
Gauteng Inter-Region at UJ 2024 (U10 Open)
2024/12/07
2024/12/08
Johannesburg Metro (GJM)
Standard
90
0.94
5
5
4.0
1504.2
1491.9
Analysis
43
2024 Tshwane Chess Club Clash (Open)
2024/10/12
2024/10/12
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1537.9
1531.6
Analysis
42
Gauteng Top Schools 2024 (U11 Open)
2024/10/04
2024/10/04
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1537.9
1531.6
Analysis
41
Bojanala's FIDE In The Sparkling Waters 2024 (Junior Champs)
2024/08/17
2024/08/17
Bojanala Platina (NBR)
Standard
120
1.00
5
5
3.5
1542.9
1539.0
Analysis
40
JMC Closed 2024 (U10)
2024/08/09
2024/08/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1542.9
1539.0
Analysis
39
Second Knight Riders Juniors Open Chess Tournament 2024 (U10)
2024/06/08
2024/06/08
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1494.6
1501.7
Analysis
38
JMC Trinityhouse Little Falls 2024 (U10)
2024/06/02
2024/06/02
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.5
1494.6
1501.7
Analysis
37
Chess Power House May Open 2024 (D)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1352.8
1320.7
Analysis
36
JMC Crawford International Sandton 2024 (U10)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
5.0
1352.8
1320.7
Analysis
35
JMC Helpmekaar Kollege Tournament 2024 (U10)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1352.8
1320.7
Analysis
34
South African Junior Closed Chess Championship 2024 (U10 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
8
2.0
1352.8
1320.7
Analysis
33
Hermanus Chess Club Open 2024 (Intermediate)
2024/04/20
2024/04/20
Overberg (WOS)
Rapid
20
0.47
7
7
3.5
1374.0
1142.2
Analysis
32
CPH St Andrew's Rapid 2024 (C)
2024/03/30
2024/03/30
Ekurhuleni (GE)
Rapid
20
0.47
5
5
4.5
1342.3
1003.8
Analysis
31
2024 Tshwane Chess AHS Open Chess Tournament (C2)
2024/02/24
2024/02/24
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1408.2
1394.3
Analysis
30
2024 Blou Bul Open Chess Tournament (C)
2024/02/10
2024/02/10
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1408.2
1394.3
Analysis
29
JMC Kick Off Tournament 2024 (D)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1435.1
1423.4
Analysis
28
2024 Gauteng Inter-Region Chess Championship (U10A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1435.1
1423.4
Analysis
27
2023 Centurion Chess Open (C)
2023/09/23
2023/09/23
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1481.6
1478.8
Analysis
26
Chess Power House 2023 (C)
2023/08/19
2023/08/19
Johannesburg Metro (GJM)
Standard
90
0.94
5
4
3.0
1477.7
1469.8
Analysis
25
JMC Closed Aug 2023 (U10)
2023/08/04
2023/08/06
Johannesburg Metro (GJM)
Standard
90
0.94
6
6
4.0
1477.7
1469.8
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
90
55
5
30
57.5
63.9
118.1
1323.2
1441.3
White
44
28
3
13
29.5
67.0
144.9
1303.6
1448.4
Black
46
27
2
17
28.0
60.9
92.4
1342.0
1434.4
Standard
All
78
48
3
27
49.5
63.5
114.4
1331.7
1446.2
White
38
24
2
12
25.0
65.8
134.2
1309.1
1443.3
Black
40
24
1
15
24.5
61.3
95.6
1353.3
1448.9
Rapid
All
12
7
2
3
8.0
66.7
141.7
1267.7
1409.4
White
6
4
1
1
4.5
75.0
212.5
1268.6
1481.1
Black
6
3
1
2
3.5
58.3
70.8
1266.9
1337.7
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
240
137
10
93
142.0
59.2
77.9
1241.5
1319.5
White
119
70
6
43
73.0
61.3
96.4
1228.8
1325.2
Black
121
67
4
50
69.0
57.0
59.7
1254.1
1313.8
Standard
All
200
126
8
66
130.0
65.0
127.5
1261.6
1389.1
White
99
63
5
31
65.5
66.2
137.4
1251.4
1388.8
Black
101
63
3
35
64.5
63.9
117.8
1271.7
1389.5
Rapid
All
32
11
2
19
12.0
37.5
-106.3
1178.3
1072.0
White
16
7
1
8
7.5
46.9
-26.6
1158.5
1131.9
Black
16
4
1
11
4.5
28.1
-185.9
1198.1
1012.2
Blitz
All
8
0
0
8
0.0
0.0
-425.0
992.1
567.1
White
4
0
0
4
0.0
0.0
-425.0
950.0
525.0
Black
4
0
0
4
0.0
0.0
-425.0
1034.3
609.3
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
2160134894
Conradie, M (Minka)
6
4.5
4
1
1
75.0
1278.4
212.5
1490.9
View list
2
1150145631
Stelloh, S (Sebastian)
6
2.0
2
0
4
33.3
1380.4
-141.7
1238.8
View list
3
2150135551
Le Kay, A (Alexa)
4
3.0
3
0
1
75.0
1271.9
212.5
1484.4
View list
4
1150134901
Pillay, Y (Yishai)
4
2.0
2
0
2
50.0
1314.0
0.0
1314.0
View list
5
1140138260
Ma, M (Matthew)
4
1.5
1
1
2
37.5
1397.6
-106.3
1291.4
View list
6
1150143812
Kwint, J (Jack)
3
3.0
3
0
0
100.0
1332.8
425.0
1757.8
View list
7
1170134515
Deysel, Z (Zachariah)
3
2.0
2
0
1
66.7
1215.9
141.7
1357.5
View list
8
1140144042
Motau, N (Neelo)
3
0.5
0
1
2
16.7
1360.9
-283.3
1077.6
View list
9
2140155741
Akole, S (Sara)
2
2.0
2
0
0
100.0
1379.5
425.0
1804.5
View list
10
1160137420
Badat, M (Mikaeel)
2
2.0
2
0
0
100.0
1234.4
425.0
1659.4
View list
11
1150136649
Coetzee, A (Adriaan)
2
2.0
2
0
0
100.0
1138.1
425.0
1563.1
View list
12
1150141656
Du Toit, C (Carel Aaron)
2
2.0
2
0
0
100.0
1243.1
425.0
1668.1
View list
13
1160144300
Hoek, B (Beyers)
2
2.0
2
0
0
100.0
1286.7
425.0
1711.7
View list
14
1150303045
Kilari, S (Suveer)
2
2.0
2
0
0
100.0
1447.8
425.0
1872.8
View list
15
1160134896
Loots, A (Albert)
2
2.0
2
0
0
100.0
1336.9
425.0
1761.9
View list
16
2140158313
Mann, L (Leane)
2
2.0
2
0
0
100.0
1410.0
425.0
1835.0
View list
17
1160191601
Meijer, C (Carlo)
2
2.0
2
0
0
100.0
1447.8
425.0
1872.8
View list
18
1150134898
Nagel, R (Raf)
2
2.0
2
0
0
100.0
1192.1
425.0
1617.1
View list
19
2150134902
Steyn, M (Mari-Louise)
2
2.0
2
0
0
100.0
1286.7
425.0
1711.7
View list
20
2150156385
Vis, K (Katlego)
2
2.0
2
0
0
100.0
1469.7
425.0
1894.7
View list