Chess South Africa
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Chess South Africa
Van Der Westhuizen, C (Courtney)
Dob:
2009/01/01 (U16)
Gender:
Female
Chess SA id:
209078595
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2024/07/20 (80 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
1227.9
Current Weighted rating
1256.2
Current Weighted performance
1032.6
Current official/published rating (highest between Raw, WR and WP)
1256.2
Current highest rating achieved
1282.6
Current floor (min rating allowed)
782.6
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)
±159.4
Current Raw change used (final)
0.0
Projected new Raw rating
1227.9
Projected new Weighed rating
1155.8
Projected new Weighted performance
1032.6
Projected new final Raw rating (if new WP > new Raw)
1227.9
Projected new highest rating
1282.6
Projected new floor
782.6
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1227.9
Projected effective change (new Official - current Official)
-28.3
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
1147.8
Current Weighted rating
1201.9
Current Weighted performance
891.0
Current official/published rating (highest between Raw, WR and WP)
1201.9
Current highest rating achieved
1211.9
Current floor (min rating allowed)
711.9
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)
±178.6
Current Raw change used (final)
0.0
Projected new Raw rating
1147.8
Projected new Weighed rating
1105.3
Projected new Weighted performance
891.0
Projected new final Raw rating (if new WP > new Raw)
1147.8
Projected new highest rating
1211.9
Projected new floor
711.9
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1147.8
Projected effective change (new Official - current Official)
-54.1
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
1250.4
Current Weighted rating
1201.0
Current Weighted performance
1126.2
Current official/published rating (highest between Raw, WR and WP)
1250.4
Current highest rating achieved
1250.4
Current floor (min rating allowed)
750.4
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)
±154.3
Current Raw change used (final)
0.0
Projected new Raw rating
1250.4
Projected new Weighed rating
1106.4
Projected new Weighted performance
1126.2
Projected new final Raw rating (if new WP > new Raw)
1250.4
Projected new highest rating
1250.4
Projected new floor
750.4
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1250.4
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
500.0
Current Weighted rating
500.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
500.0
Current highest rating achieved
500.0
Current floor (min rating allowed)
500.0
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)
±449.5
Current Raw change used (final)
0.0
Projected new Raw rating
500.0
Projected new Weighed rating
460.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
500.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
500.0
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
2
Pedro Booyse Top Schools Championships 2024 (U15)
2024/07/20
2024/07/20
West Coast (WCU)
Standard
60
0.83
5
4
0.0
1282.6
1211.9
Analysis
1
Bo-Weskus Skole Skaak Top Skole 2024 (O15)
2024/05/11
2024/05/11
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1255.0
1176.8
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
23
Pedro Booyse Top Schools Championships 2024 (U15)
2024/07/20
2024/07/20
West Coast (WCU)
Standard
60
0.83
5
4
0.0
1282.6
1211.9
Analysis
22
Bo-Weskus Skole Skaak Top Skole 2024 (O15)
2024/05/11
2024/05/11
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1255.0
1176.8
Analysis
21
Upper West Coast Top Schools Championship 2023 (High School)
2023/06/10
2023/06/10
West Coast (WCU)
Rapid
30
0.60
5
4
2.0
1251.8
1150.4
Analysis
20
Bo-Weskus Skole Prestige 2023 (Hoƫrskool Dogters)
2023/02/11
2023/02/11
West Coast (WCU)
Rapid
30
0.60
5
5
3.0
1249.9
1132.4
Analysis
19
Western Cape Top Schools 2022 (U13 Girls)
2022/09/16
2022/09/17
Overberg (WOS)
Standard
60
0.83
5
5
3.0
1234.1
1185.9
Analysis
18
Pedro Booyse Top Schools 2022 (U11+U13 Girls)
2022/07/23
2022/07/23
West Coast (WCU)
Standard
60
0.83
6
4
2.0
1240.1
1182.7
Analysis
17
Bo-Weskus Top Skole 2022 (O13)
2022/06/11
2022/06/11
West Coast (WCU)
Rapid
30
0.60
5
4
3.0
1219.4
1066.4
Analysis
16
Western Cape Schools 2022 (U13 Girls)
2022/05/28
2022/05/29
Cape Winelands (WCW)
Standard
65
0.85
6
6
3.0
1221.2
1181.5
Analysis
15
West Coast Schools Prestige 2022 (U13 Girls)
2022/02/19
2022/02/19
West Coast (WCU)
Standard
60
0.83
6
6
4.0
1187.7
1122.7
Analysis
14
West Coast Primary Schools Prestige 2021 (U13 Girls)
2021/09/18
2021/09/18
West Coast (WCU)
Rapid
30
0.60
5
5
1.0
1195.5
875.2
Analysis
13
Upper West Coast 2021 (U13)
2021/09/04
2021/09/04
West Coast (WCU)
Rapid
20
0.47
7
6
4.0
1195.5
875.2
Analysis
12
West Coast Schools Prestige 2020 (U11 Girls)
2020/03/07
2020/03/07
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1142.3
718.4
Analysis
11
Bo-Weskus Skole Prestige 2020 (O11 Dogters)
2020/02/15
2020/02/15
West Coast (WCU)
Standard
60
0.83
6
6
5.0
1040.7
972.8
Analysis
10
2019 South African Top Schools Team Championships (U13+U15 Girls)
2020/01/10
2020/01/11
4 Knights (4K)
Standard
90
0.94
5
4
1.0
1070.0
991.2
Analysis
9
Western Cape Top Schools 2019 (U11 Girls)
2019/08/31
2019/09/01
Cape Winelands (WCW)
Standard
60
0.83
5
5
2.0
1074.3
978.4
Analysis
8
Western Cape Schools Individuals 2019 (U11 Girls)
2019/05/18
2019/05/19
Eden District (WEG)
Standard
60
0.83
6
6
3.0
991.4
807.2
Analysis
7
West Coast Open 2019 (C)
2019/04/27
2019/04/27
West Coast (WCU)
Standard
90
0.94
5
0
0.0
941.6
698.0
Analysis
6
Weskus Skole Prestige Skaak Kampioenskappe 2019 (O11 Dogters)
2019/03/02
2019/04/06
West Coast (WCU)
Standard
60
0.83
6
6
3.0
941.6
698.0
Analysis
5
Bo-Weskus Skole Skaak Prestige 2019 (O11 Dogters)
2019/02/16
2019/02/16
West Coast (WCU)
Rapid
30
0.60
7
7
4.0
719.4
579.2
Analysis
4
Western Cape Kings & Queens 2018 (Girls)
2018/10/20
2018/10/20
Cape Winelands (WCW)
Rapid
30
0.60
5
4
2.0
671.9
500.0
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
9
4
0
5
4.0
44.4
-47.2
1250.7
1203.5
White
3
1
0
2
1.0
33.3
-141.7
1229.1
1087.4
Black
6
3
0
3
3.0
50.0
0.0
1261.5
1261.5
Standard
All
4
0
0
4
0.0
0.0
-425.0
1302.0
877.0
White
1
0
0
1
0.0
0.0
-425.0
1302.3
877.3
Black
3
0
0
3
0.0
0.0
-425.0
1301.9
876.9
Rapid
All
5
4
0
1
4.0
80.0
255.0
1209.7
1464.7
White
2
1
0
1
1.0
50.0
0.0
1192.5
1192.5
Black
3
3
0
0
3.0
100.0
425.0
1221.2
1646.2
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
113
60
0
53
60.0
53.1
26.3
1178.5
1204.9
White
55
31
0
24
31.0
56.4
54.1
1165.7
1219.8
Black
58
29
0
29
29.0
50.0
0.0
1190.7
1190.7
Standard
All
68
33
0
35
33.0
48.5
-12.5
1159.7
1147.2
White
33
21
0
12
21.0
63.6
115.9
1140.8
1256.7
Black
35
12
0
23
12.0
34.3
-133.6
1177.5
1043.9
Rapid
All
45
27
0
18
27.0
60.0
85.0
1207.0
1292.0
White
22
10
0
12
10.0
45.5
-38.6
1203.0
1164.4
Black
23
17
0
6
17.0
73.9
203.3
1210.8
1414.1
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
2090099753
De Bruin, E (Elrise)
6
3.0
3
0
3
50.0
1009.6
0.0
1009.6
View list
2
209090558
Beukes, K (Kelsey)
5
2.0
2
0
3
40.0
869.6
-85.0
784.6
View list
3
208078559
Van Zyl, M (Mea)
5
0.0
0
0
5
0.0
1071.6
-425.0
646.6
View list
4
209090556
Sauls, J (Jada)
3
1.0
1
0
2
33.3
990.1
-141.7
848.4
View list
5
209090560
Beukes, K (Kelly)
2
2.0
2
0
0
100.0
847.8
425.0
1272.8
View list
6
2090110096
Basson, Z (Ziah)
2
2.0
2
0
0
100.0
1042.0
425.0
1467.0
View list
7
2090143086
Coetzee, L (Leigh-Ann)
2
2.0
2
0
0
100.0
1240.1
425.0
1665.1
View list
8
2090107109
Pienaar, F (Francisca)
2
2.0
2
0
0
100.0
1081.4
425.0
1506.4
View list
9
2100131827
Willemse, J (Jadiah)
2
2.0
2
0
0
100.0
1114.2
425.0
1539.2
View list
10
209090559
Jaars, E (Eliza)
2
1.0
1
0
1
50.0
930.3
0.0
930.3
View list
11
209090553
Meyer, G (Gracia)
2
1.0
1
0
1
50.0
1168.9
0.0
1168.9
View list
12
2090108395
Mqadi, O (Olethiwe)
2
1.0
1
0
1
50.0
1227.7
0.0
1227.7
View list
13
209090549
Pieters, A (Astrolita)
2
1.0
1
0
1
50.0
847.8
0.0
847.8
View list
14
2080105984
De Lange, M (Marizaan)
2
0.0
0
0
2
0.0
935.0
-425.0
510.0
View list
15
1090131841
Kriel, Z (Zaydon)
2
0.0
0
0
2
0.0
1268.8
-425.0
843.8
View list
16
2090134336
Pienaar, F (Francisca)
2
0.0
0
0
2
0.0
1240.1
-425.0
815.1
View list
17
210090539
Cloete, L (Leigh-Marcia)
1
1.0
1
0
0
100.0
500.0
425.0
925.0
View list
18
209078589
Cloete, A (Amanda)
1
1.0
1
0
0
100.0
1187.7
425.0
1612.7
View list
19
205004871
Claassen, JLA (Jay-Lee-Ann)
1
1.0
1
0
0
100.0
1249.9
425.0
1674.9
View list
20
209077302
Ellman, E (Elle-Marie)
1
1.0
1
0
0
100.0
1142.3
425.0
1567.3
View list