Chess South Africa
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Chess South Africa
Kooy, B (Bertu)
Dob:
2008/10/02 (U18)
Gender:
Male
Chess SA id:
1080155580
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2023/09/16 (241 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
1274.9
Curent Weighted rating
1254.1
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1274.9
Current floor (min rating allowed)
782.8
Current highest rating achieved
1282.8
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)
±149.0
Current Raw change used (final)
0.0
Projected new Raw rating
1274.9
Projected new Weighed rating
1257.2
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1274.9
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1282.8
Projected new floor
782.8
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
1280.7
Curent Weighted rating
1255.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1280.7
Current floor (min rating allowed)
780.7
Current highest rating achieved
1280.7
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)
±147.8
Current Raw change used (final)
0.0
Projected new Raw rating
1280.7
Projected new Weighed rating
1259.1
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1280.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1280.7
Projected new floor
780.7
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
1204.3
Curent Weighted rating
1203.4
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1204.3
Current floor (min rating allowed)
704.3
Current highest rating achieved
1204.3
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)
±164.8
Current Raw change used (final)
0.0
Projected new Raw rating
1204.3
Projected new Weighed rating
1203.5
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1204.3
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1204.3
Projected new floor
704.3
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
1183.4
Curent Weighted rating
1190.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1190.0
Current floor (min rating allowed)
704.3
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)
±169.8
Current Raw change used (final)
0.0
Projected new Raw rating
1183.4
Projected new Weighed rating
1189.2
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1189.2
Projected effective change (new Official - current Official)
-0.8
Projected new highest rating
1200.0
Projected new floor
704.3
Projected new K-facor
36
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
Helpmekaar Kollege Blitz Chess Invitational Sep 2023
2023/09/16
2023/09/16
Johannesburg Metro (GJM)
Blitz
8
0.25
9
8
4.0
1282.8
1200.0
Analysis
3
2023 Gauteng Top Schools (U15 Mixed)
2023/08/19
2023/08/19
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1271.7
1267.0
Analysis
2
ThinkChess Tournament 29 July 2023
2023/07/29
2023/07/29
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1220.3
1200.0
Analysis
1
Gauteng Open Arnold Classic 2023 (U16)
2023/05/19
2023/05/19
Tshwane (GTP)
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
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
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
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
23
14
0
9
14.0
60.9
92.4
1235.1
1327.4
White
11
8
0
3
8.0
72.7
193.2
1248.7
1441.9
Black
12
6
0
6
6.0
50.0
0.0
1222.5
1222.5
Standard
All
10
7
0
3
7.0
70.0
170.0
1255.1
1425.1
White
5
5
0
0
5.0
100.0
425.0
1264.6
1689.6
Black
5
2
0
3
2.0
40.0
-85.0
1245.6
1160.6
Rapid
All
5
3
0
2
3.0
60.0
85.0
1269.5
1354.5
White
2
1
0
1
1.0
50.0
0.0
1326.3
1326.3
Black
3
2
0
1
2.0
66.7
141.7
1231.6
1373.3
Blitz
All
8
4
0
4
4.0
50.0
0.0
1188.5
1188.5
White
4
2
0
2
2.0
50.0
0.0
1190.0
1190.0
Black
4
2
0
2
2.0
50.0
0.0
1187.0
1187.0
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1090161988
Akaloo, D (Deya)
1
1.0
1
0
0
100.0
1282.8
425.0
1707.8
View list
2
110089335
De Lange, B (Bester)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
2060138254
Coulter, J (Justine)
1
1.0
1
0
0
100.0
1282.8
425.0
1707.8
View list
4
1080141600
Monaledi, O (Otsile)
1
1.0
1
0
0
100.0
1271.7
425.0
1696.7
View list
5
1100152477
Mohamed, A (Aram)
1
1.0
1
0
0
100.0
1220.3
425.0
1645.3
View list
6
1030143528
Thimane, S (Siyabonga)
1
1.0
1
0
0
100.0
1271.7
425.0
1696.7
View list
7
1140148614
Subroyen, J (Jeevesh)
1
1.0
1
0
0
100.0
1220.3
425.0
1645.3
View list
8
1100145922
Sotheni, L (Lusiba)
1
1.0
1
0
0
100.0
1282.8
425.0
1707.8
View list
9
1130140204
Sehloho, T (Thandolwethu)
1
1.0
1
0
0
100.0
1220.3
425.0
1645.3
View list
10
109086017
Roetz, K (Kyle)
1
1.0
1
0
0
100.0
1282.8
425.0
1707.8
View list
11
1090155624
Rajah, S (Saahil)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
12
1130158075
Popat, R (Rey)
1
1.0
1
0
0
100.0
1220.3
425.0
1645.3
View list
13
1080161103
Van Heerden, F (Frederik)
1
1.0
1
0
0
100.0
1271.7
425.0
1696.7
View list
14
1100155642
Whitehead, J (Jonathan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
15
1080155639
Vallabh, K (Kavi)
1
0.0
0
0
1
0.0
1282.8
-425.0
857.8
View list
16
1090107165
Oosthuizen, L (Ludrick)
1
0.0
0
0
1
0.0
1271.7
-425.0
846.7
View list
17
1080159056
Prinsloo, G (Gareth)
1
0.0
0
0
1
0.0
1271.7
-425.0
846.7
View list
18
1090154876
Kleynhans, R (Ruan)
1
0.0
0
0
1
0.0
1282.8
-425.0
857.8
View list
19
108079040
Gruenenfelder, S (Stiaan)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
20
1080107799
Du Toit, J (Jaunre)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list