Chess South Africa
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Chess South Africa
Cosa, L (Lonwaba)
Dob:
2010/02/06 (U16)
Gender:
Male
Chess SA id:
1100156864
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2024/05/11 (120 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
1210.2
Current Weighted rating
1208.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1210.2
Current highest rating achieved
1210.2
Current floor (min rating allowed)
710.2
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)
±163.4
Current Raw change used (final)
0.0
Projected new Raw rating
1210.2
Projected new Weighed rating
1112.2
Projected new Weighted performance
637.0
Projected new final Raw rating (if new WP > new Raw)
1210.2
Projected new highest rating
1210.2
Projected new floor
710.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1210.2
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
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
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
1218.0
Current Weighted rating
1213.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1218.0
Current highest rating achieved
1218.0
Current floor (min rating allowed)
718.0
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)
±161.6
Current Raw change used (final)
0.0
Projected new Raw rating
1218.0
Projected new Weighed rating
1117.0
Projected new Weighted performance
670.6
Projected new final Raw rating (if new WP > new Raw)
1218.0
Projected new highest rating
1218.0
Projected new floor
718.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1218.0
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
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
Lower West Top Schools 2024 (U15)
2024/05/11
2024/05/11
West Coast (WCU)
Rapid
30
0.60
5
4
2.0
1209.3
1214.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
2
Lower West Top Schools 2024 (U15)
2024/05/11
2024/05/11
West Coast (WCU)
Rapid
30
0.60
5
4
2.0
1209.3
1214.0
Analysis
1
St Helenabaai Open 2023 (Development)
2023/05/13
2023/05/13
West Coast (WCU)
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
4
2
0
2
2.0
50.0
0.0
1216.1
1216.1
White
2
1
0
1
1.0
50.0
0.0
1178.8
1178.8
Black
2
1
0
1
1.0
50.0
0.0
1253.3
1253.3
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
4
2
0
2
2.0
50.0
0.0
1216.1
1216.1
White
2
1
0
1
1.0
50.0
0.0
1178.8
1178.8
Black
2
1
0
1
1.0
50.0
0.0
1253.3
1253.3
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
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
9
5
0
4
5.0
55.6
47.2
1197.1
1244.3
White
4
2
0
2
2.0
50.0
0.0
1166.8
1166.8
Black
5
3
0
2
3.0
60.0
85.0
1221.3
1306.3
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
9
5
0
4
5.0
55.6
47.2
1197.1
1244.3
White
4
2
0
2
2.0
50.0
0.0
1166.8
1166.8
Black
5
3
0
2
3.0
60.0
85.0
1221.3
1306.3
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
1100192697
Oliver, J (Jeandre)
1
1.0
1
0
0
100.0
1209.3
425.0
1634.3
View list
2
1120156866
Matthyse, M (Michael)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
2120156869
Samuels, J (Jada)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
4
1090304289
Van Rooyen, C (Curtley)
1
1.0
1
0
0
100.0
1209.3
425.0
1634.3
View list
5
2100156873
Stevens, E (Elmodene)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
2100131696
Warner, A (Alicia)
1
0.0
0
0
1
0.0
1209.3
-425.0
784.3
View list
7
1100143096
September, G (G-Naro)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
8
1130156867
Peacock, C (Christian)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
9
1100157819
De Bruin, M (Matthew)
1
0.0
0
0
1
0.0
1209.3
-425.0
784.3
View list
