Chess South Africa
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Chess South Africa
Ma, C (Chengyan)
Dob:
2008/10/07 (U18)
Gender:
Male
Chess SA id:
108076744
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/02/03 (102 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
1031.3
Curent Weighted rating
1020.8
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1031.3
Current floor (min rating allowed)
531.3
Current highest rating achieved
1031.3
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)
±210.9
Current Raw change used (final)
0.0
Projected new Raw rating
1031.3
Projected new Weighed rating
1021.8
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1031.3
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1031.3
Projected new floor
531.3
Projected new K-facor
40
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
944.9
Curent Weighted rating
880.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
944.9
Current floor (min rating allowed)
444.9
Current highest rating achieved
944.9
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)
±238.5
Current Raw change used (final)
0.0
Projected new Raw rating
944.9
Projected new Weighed rating
886.8
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
944.9
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
944.9
Projected new floor
444.9
Projected new K-facor
40
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
1073.6
Curent Weighted rating
1073.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1073.6
Current floor (min rating allowed)
573.6
Current highest rating achieved
1073.6
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)
±198.5
Current Raw change used (final)
0.0
Projected new Raw rating
1073.6
Projected new Weighed rating
1073.6
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1073.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1073.6
Projected new floor
573.6
Projected new K-facor
40
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
811.6
Curent Weighted rating
811.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
811.6
Current floor (min rating allowed)
573.6
Current highest rating achieved
811.6
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)
±288.4
Current Raw change used (final)
0.0
Projected new Raw rating
811.6
Projected new Weighed rating
811.6
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
811.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
811.6
Projected new floor
573.6
Projected new K-facor
40
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
1
North District School Trials 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
3
1.0
1017.7
919.3
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
5
North District School Trials 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
3
1.0
1017.7
919.3
Analysis
4
2020 Welgemoed Chess Challenge (U14)
2020/02/29
2020/02/29
Cape Town (WCT)
Rapid
30
0.60
5
5
3.0
967.8
1011.2
Analysis
3
Welgemoed Chess Challenge 2019 (U12)
2019/02/23
2019/02/23
Cape Town (WCT)
Rapid
30
0.60
5
5
4.0
904.7
910.0
Analysis
2
Welgemoed Chess Challenge 2018 (U12)
2018/02/24
2018/02/24
Cape Town (WCT)
Rapid
30
0.60
5
5
4.0
848.8
811.6
Analysis
1
South African Junior Team Championships 2017 (U10B)
2018/01/04
2018/01/08
4 Knights (4K)
Standard
120
1.00
7
7
5.0
811.6
811.6
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
3
1
0
2
1.0
33.3
-141.7
1306.4
1164.7
White
2
1
0
1
1.0
50.0
0.0
1359.6
1359.6
Black
1
0
0
1
0.0
0.0
-425.0
1200.0
775.0
Standard
All
3
1
0
2
1.0
33.3
-141.7
1306.4
1164.7
White
2
1
0
1
1.0
50.0
0.0
1359.6
1359.6
Black
1
0
0
1
0.0
0.0
-425.0
1200.0
775.0
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
25
17
0
8
17.0
68.0
153.0
1050.5
1203.5
White
15
11
0
4
11.0
73.3
198.3
1073.8
1272.1
Black
10
6
0
4
6.0
60.0
85.0
1015.6
1100.6
Standard
All
10
6
0
4
6.0
60.0
85.0
915.6
1000.6
White
6
4
0
2
4.0
66.7
141.7
904.1
1045.8
Black
4
2
0
2
2.0
50.0
0.0
932.8
932.8
Rapid
All
15
11
0
4
11.0
73.3
198.3
1140.5
1338.8
White
9
7
0
2
7.0
77.8
236.1
1187.0
1423.1
Black
6
4
0
2
4.0
66.7
141.7
1070.8
1212.4
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
2080119075
Jika, Z (Zintle)
1
1.0
1
0
0
100.0
967.8
425.0
1392.8
View list
2
1070132139
Fourie , P (Pierre)
1
1.0
1
0
0
100.0
967.8
425.0
1392.8
View list
3
208061417
Botha, L (Lika)
1
1.0
1
0
0
100.0
811.6
425.0
1236.6
View list
4
1080108760
Booi, S (Sipho)
1
1.0
1
0
0
100.0
904.7
425.0
1329.7
View list
5
207088263
Ntanjana, A (Asemahle)
1
1.0
1
0
0
100.0
848.8
425.0
1273.8
View list
6
108087778
Naidoo, N (Nikhil)
1
1.0
1
0
0
100.0
848.8
425.0
1273.8
View list
7
108058811
Louw, B (Benrico)
1
1.0
1
0
0
100.0
811.6
425.0
1236.6
View list
8
107092998
Linegar, J (John)
1
1.0
1
0
0
100.0
848.8
425.0
1273.8
View list
9
2080107974
Selzer, A (Alexia)
1
1.0
1
0
0
100.0
904.7
425.0
1329.7
View list
10
108086187
Rossouw, J (Johrne)
1
1.0
1
0
0
100.0
811.6
425.0
1236.6
View list
11
108066994
Pyle, A (Andrew)
1
1.0
1
0
0
100.0
811.6
425.0
1236.6
View list
12
107072031
Pfaff, D (Darius)
1
1.0
1
0
0
100.0
848.8
425.0
1273.8
View list
13
1070193708
Van Der Merwe, J (Juandru)
1
1.0
1
0
0
100.0
1017.7
425.0
1442.7
View list
14
108087045
Solomon, M (Matteo)
1
1.0
1
0
0
100.0
967.8
425.0
1392.8
View list
15
208067323
Aldum, C (Carla)
1
1.0
1
0
0
100.0
811.6
425.0
1236.6
View list
16
108087010
Viljoen, W (Wynand)
1
1.0
1
0
0
100.0
904.7
425.0
1329.7
View list
17
1090109863
Yi, M (Meiyao)
1
1.0
1
0
0
100.0
904.7
425.0
1329.7
View list
18
108065178
Van Der Walt, JHT (Jean Hendrik T)
1
0.0
0
0
1
0.0
811.6
-425.0
386.6
View list
19
108061379
Solomon, D (Daniel)
1
0.0
0
0
1
0.0
848.8
-425.0
423.8
View list
20
107053637
Palmer, RN (Reegan)
1
0.0
0
0
1
0.0
967.8
-425.0
542.8
View list