Chess South Africa
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Chess South Africa
Rivera, J (Joey)
Dob:
2012/05/09 (U14)
Gender:
Male
Chess SA id:
1120118540
FIDE id:
Region:
iLembe (KIK)
Citizen:
RSA
Title(s):
Last active:
2024/02/17 (122 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
1144.8
Current Weighted rating
1142.1
Current Weighted performance
909.8
Current official/published rating (highest between Raw, WR and WP)
1144.8
Current highest rating achieved
1184.1
Current floor (min rating allowed)
684.1
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)
±179.4
Current Raw change used (final)
0.0
Projected new Raw rating
1144.8
Projected new Weighed rating
1050.7
Projected new Weighted performance
909.8
Projected new final Raw rating (if new WP > new Raw)
1144.8
Projected new highest rating
1184.1
Projected new floor
684.1
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1144.8
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
1127.2
Current Weighted rating
1129.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1129.3
Current highest rating achieved
1162.0
Current floor (min rating allowed)
662.0
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)
±183.9
Current Raw change used (final)
0.0
Projected new Raw rating
1127.2
Projected new Weighed rating
1038.7
Projected new Weighted performance
603.3
Projected new final Raw rating (if new WP > new Raw)
1127.2
Projected new highest rating
1162.0
Projected new floor
662.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1127.2
Projected effective change (new Official - current Official)
-2.1
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
1173.6
Current Weighted rating
1176.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1176.6
Current highest rating achieved
1216.8
Current floor (min rating allowed)
716.8
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)
±172.2
Current Raw change used (final)
0.0
Projected new Raw rating
1173.6
Projected new Weighed rating
1082.4
Projected new Weighted performance
742.6
Projected new final Raw rating (if new WP > new Raw)
1173.6
Projected new highest rating
1216.8
Projected new floor
716.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1173.6
Projected effective change (new Official - current Official)
-3.0
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
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
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
1
Umhlali Rapid 2024 (Senior Primary)
2024/02/17
2024/02/17
iLembe (KIK)
Rapid
25
0.54
5
5
2.0
1138.8
1177.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
6
Umhlali Rapid 2024 (Senior Primary)
2024/02/17
2024/02/17
iLembe (KIK)
Rapid
25
0.54
5
5
2.0
1138.8
1177.9
Analysis
5
ILembe Youth Trials 2023 (U12)
2023/04/22
2023/04/22
iLembe (KIK)
Standard
60
0.83
5
5
2.0
1149.1
1141.2
Analysis
4
Ilembe Youth Trials 2022 (U12)
2022/04/23
2022/04/23
iLembe (KIK)
Standard
60
0.83
5
4
1.0
1167.0
1162.0
Analysis
3
Ashton Ballito Championship 2022 (B)
2022/02/19
2022/02/19
iLembe (KIK)
Rapid
20
0.47
5
5
1.5
1184.1
1216.8
Analysis
2
Umhlali Prep Inter-House 2021 (Grade 3)
2021/11/25
2021/11/25
iLembe (KIK)
Rapid
30
0.60
5
5
3.0
1168.5
1200.0
Analysis
1
Mama Luthuli Chess Tournament 2019 (Junior Primary)
2019/08/30
2019/08/30
iLembe (KIK)
Standard
60
0.83
5
5
1.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
5
2
0
3
2.0
40.0
-85.0
1263.7
1178.7
White
2
0
0
2
0.0
0.0
-425.0
1304.5
879.5
Black
3
2
0
1
2.0
66.7
141.7
1236.4
1378.1
Standard
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
Rapid
All
5
2
0
3
2.0
40.0
-85.0
1263.7
1178.7
White
2
0
0
2
0.0
0.0
-425.0
1304.5
879.5
Black
3
2
0
1
2.0
66.7
141.7
1236.4
1378.1
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
29
10
2
17
11.0
37.9
-102.6
1217.2
1114.6
White
14
4
1
9
4.5
32.1
-151.8
1231.8
1080.0
Black
15
6
1
8
6.5
43.3
-56.7
1203.6
1146.9
Standard
All
14
4
1
9
4.5
32.1
-151.8
1220.2
1068.4
White
8
3
1
4
3.5
43.8
-53.1
1229.5
1176.4
Black
6
1
0
5
1.0
16.7
-283.3
1207.6
924.3
Rapid
All
15
6
1
8
6.5
43.3
-56.7
1214.5
1157.8
White
6
1
0
5
1.0
16.7
-283.3
1234.8
951.5
Black
9
5
1
3
5.5
61.1
94.4
1200.9
1295.3
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
1120156629
Chetty, A (Ayushen)
1
1.0
1
0
0
100.0
1138.8
425.0
1563.8
View list
2
1120136006
Khubeka, G (Godwin)
1
1.0
1
0
0
100.0
1168.5
425.0
1593.5
View list
3
1120137044
Harris, M (Michael)
1
1.0
1
0
0
100.0
1184.1
425.0
1609.1
View list
4
1120136917
Gasa, S (Simphiwe)
1
1.0
1
0
0
100.0
1167.0
425.0
1592.0
View list
5
1140135939
Mbeje, U (Uminathi)
1
1.0
1
0
0
100.0
1138.8
425.0
1563.8
View list
6
1120135971
Maharaj, R (Rudhav)
1
1.0
1
0
0
100.0
1149.1
425.0
1574.1
View list
7
1120136010
Maharaj, R (Riyav)
1
1.0
1
0
0
100.0
1149.1
425.0
1574.1
View list
8
1120136009
Lombaard, C (Caleb)
1
1.0
1
0
0
100.0
1168.5
425.0
1593.5
View list
9
110095473
Sangster, I (Issy)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
10
1120136017
Van Der Vyver, O (Olivia)
1
1.0
1
0
0
100.0
1168.5
425.0
1593.5
View list
11
2100118542
Khumalo, N (Nobuhle)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
12
1120137064
Stafford, R (Robert)
1
0.5
0
1
0
50.0
1184.1
0.0
1184.1
View list
13
2100106308
Prigge, J (Julia)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
14
2120136013
Petrie, J (Jessica)
1
0.0
0
0
1
0.0
1168.5
-425.0
743.5
View list
15
2130135983
Peter, I (Isabella)
1
0.0
0
0
1
0.0
1149.1
-425.0
724.1
View list
16
1110136047
O`neill, T (Tristan)
1
0.0
0
0
1
0.0
1167.0
-425.0
742.0
View list
17
1110146798
Nkosi, S (Sihole)
1
0.0
0
0
1
0.0
1149.1
-425.0
724.1
View list
18
1090101759
Naidoo, L (Leah)
1
0.0
0
0
1
0.0
1184.1
-425.0
759.1
View list
19
1110118530
Mchunu, N (Nhlonipho)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
20
1110137049
Kunene, L (Lwethu)
1
0.0
0
0
1
0.0
1184.1
-425.0
759.1
View list