Chess South Africa
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Chess South Africa
Choonoo Johnson, Z (Zachary)
Dob:
2013/02/09 (U12)
Gender:
Male
Chess SA id:
1130137320
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/03/03 (96 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
Curent Raw rating
1270.3
Curent Weighted rating
1224.7
Curent Weighted performance
1162.8
Current official/published rating (highest between Raw, WR and WP)
1270.3
Current floor (min rating allowed)
770.3
Current highest rating achieved
1270.3
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)
±150.0
Current Raw change used (final)
0.0
Projected new Raw rating
1270.3
Projected new Weighed rating
1228.8
Projected new Weighted performance
1162.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1270.3
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1270.3
Projected new floor
770.3
Projected new K-facor
36
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
Curent Raw rating
1277.4
Curent Weighted rating
1218.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1277.4
Current floor (min rating allowed)
777.4
Current highest rating achieved
1277.4
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)
±148.5
Current Raw change used (final)
0.0
Projected new Raw rating
1277.4
Projected new Weighed rating
1224.3
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1277.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1277.4
Projected new floor
777.4
Projected new K-facor
36
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
Curent Raw rating
1211.2
Curent Weighted rating
1212.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1212.2
Current floor (min rating allowed)
734.2
Current highest rating achieved
1234.2
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)
±163.2
Current Raw change used (final)
0.0
Projected new Raw rating
1211.2
Projected new Weighed rating
1211.9
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1211.9
Projected effective change (new Official - current Official)
-0.3
Projected new highest rating
1234.2
Projected new floor
734.2
Projected new K-facor
36
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
Curent Raw rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
734.2
Current highest rating achieved
1200.0
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
1200.0
Projected new Weighted performance
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
Projected new highest rating
1200.0
Projected new floor
734.2
Projected new K-facor
36
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
Cape Town Metro Schools Chess Closed Individuals 2024 (U11 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
4.0
1220.1
1216.2
Analysis
1
CT Metro Central District Schools Chess Individuals Trials 2024 (U11 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.0
1209.3
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
5
Cape Town Metro Schools Chess Closed Individuals 2024 (U11 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
4.0
1220.1
1216.2
Analysis
4
CT Metro Central District Schools Chess Individuals Trials 2024 (U11 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.0
1209.3
1200.0
Analysis
3
Cape of Good Hope Open 2023 (U12)
2023/01/28
2023/01/28
Cape Town (WCT)
Rapid
25
0.54
6
6
2.0
1222.1
1234.2
Analysis
2
Summer Slam 2022 (C)
2022/12/13
2022/12/13
Cape Town (WCT)
Rapid
20
0.47
6
6
3.5
1215.8
1221.6
Analysis
1
Laerskool Welgemoed 12th Annual Chess Challenge 2022 (U8+U10)
2022/02/19
2022/02/19
Cape Town (WCT)
Rapid
30
0.60
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
11
7
0
4
7.0
63.6
115.9
1261.0
1376.9
White
6
4
0
2
4.0
66.7
141.7
1211.1
1352.8
Black
5
3
0
2
3.0
60.0
85.0
1320.8
1405.8
Standard
All
11
7
0
4
7.0
63.6
115.9
1261.0
1376.9
White
6
4
0
2
4.0
66.7
141.7
1211.1
1352.8
Black
5
3
0
2
3.0
60.0
85.0
1320.8
1405.8
Rapid
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
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
28
15
1
12
15.5
55.4
45.5
1239.9
1285.5
White
13
8
0
5
8.0
61.5
98.1
1195.9
1294.0
Black
15
7
1
7
7.5
50.0
0.0
1278.1
1278.1
Standard
All
11
7
0
4
7.0
63.6
115.9
1261.0
1376.9
White
6
4
0
2
4.0
66.7
141.7
1211.1
1352.8
Black
5
3
0
2
3.0
60.0
85.0
1320.8
1405.8
Rapid
All
17
8
1
8
8.5
50.0
0.0
1226.3
1226.3
White
7
4
0
3
4.0
57.1
60.7
1182.8
1243.5
Black
10
4
1
5
4.5
45.0
-42.5
1256.8
1214.3
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
1130137335
Nel, C (Charles Paul)
3
1.0
1
0
2
33.3
1214.1
-141.7
1072.4
View list
2
1130134079
Mngqibisa, P (Phila)
1
1.0
1
0
0
100.0
1209.3
425.0
1634.3
View list
3
2120140117
Lambrechts, K (Kailynn)
1
1.0
1
0
0
100.0
1222.1
425.0
1647.1
View list
4
1140138136
Jacobs, E (Emmanuel)
1
1.0
1
0
0
100.0
1209.3
425.0
1634.3
View list
5
2120137358
Iuzhakova, H (Heidi)
1
1.0
1
0
0
100.0
1222.1
425.0
1647.1
View list
6
1130138135
Ismail, R (Razeen)
1
1.0
1
0
0
100.0
1220.1
425.0
1645.1
View list
7
1130193601
Muizenheimer, S (Sebastian)
1
1.0
1
0
0
100.0
1220.1
425.0
1645.1
View list
8
2130137332
Mowlana, K (Khaleela)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
9
2110148259
Dolman, J (Jay-Dee)
1
1.0
1
0
0
100.0
1215.8
425.0
1640.8
View list
10
1130158967
Barron, D (Dorian)
1
1.0
1
0
0
100.0
1220.1
425.0
1645.1
View list
11
1130137336
Polk, W (Windsor)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
12
1130162355
Sibidla, O (Onesisa)
1
1.0
1
0
0
100.0
1215.8
425.0
1640.8
View list
13
1130137342
Smit, Z (Zander)
1
1.0
1
0
0
100.0
1209.3
425.0
1634.3
View list
14
1130193609
Smith, Z (Zachary)
1
1.0
1
0
0
100.0
1220.1
425.0
1645.1
View list
15
1050148304
Temoore, A (Ameer)
1
1.0
1
0
0
100.0
1215.8
425.0
1640.8
View list
16
1080146891
Small, U (Uwen)
1
0.5
0
1
0
50.0
1215.8
0.0
1215.8
View list
17
1120137368
Sher, J (Jonah)
1
0.0
0
0
1
0.0
1222.1
-425.0
797.1
View list
18
1130130505
Rule, L (Liam)
1
0.0
0
0
1
0.0
1220.1
-425.0
795.1
View list
19
1140136551
Resnekov, O (Oliver)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
20
1140150636
Pearson, R (Rylee)
1
0.0
0
0
1
0.0
1209.3
-425.0
784.3
View list