Chess South Africa
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Chess South Africa
Botha, R (Randzu)
Dob:
2015/12/26 (U10)
Gender:
Female
Chess SA id:
2150305065
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2024/09/01 (18 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
1111.4
Current Weighted rating
1175.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1175.9
Current highest rating achieved
1146.5
Current floor (min rating allowed)
646.5
Current K-factor
40
Games played this month
9
Score (S)
1.0
Expected score (We)
3.97
Difference (S-We)
-2.35
Current Raw change (no limits, including tournament time weight)
-93.8
Current min/max change allowed (with limits)
±188.1
Current Raw change used (final)
-93.8
Projected new Raw rating
1017.6
Projected new Weighed rating
1080.9
Projected new Weighted performance
716.8
Projected new final Raw rating (if new WP > new Raw)
1017.6
Projected new highest rating
1146.5
Projected new floor
646.5
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1080.9
Projected effective change (new Official - current Official)
-94.9
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
5
Score (S)
0.0
Expected score (We)
2.78
Difference (S-We)
-2.78
Current Raw change (no limits, including tournament time weight)
-100.1
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
-100.1
Projected new Raw rating
1099.9
Projected new Weighed rating
1104.0
Projected new Weighted performance
238.5
Projected new final Raw rating (if new WP > new Raw)
1099.9
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)
1104.0
Projected effective change (new Official - current Official)
-96.0
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
1066.8
Current Weighted rating
1163.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1163.4
Current highest rating achieved
1114.4
Current floor (min rating allowed)
614.4
Current K-factor
40
s
Games played this month
4
Score (S)
1.0
Expected score (We)
1.43
Difference (S-We)
-0.43
Current Raw change (no limits, including tournament time weight)
-17.2
Current min/max change allowed (with limits)
±200.5
Current Raw change used (final)
-17.2
Projected new Raw rating
1049.6
Projected new Weighed rating
1069.0
Projected new Weighted performance
667.2
Projected new final Raw rating (if new WP > new Raw)
1049.6
Projected new highest rating
1114.4
Projected new floor
614.4
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1069.0
Projected effective change (new Official - current Official)
-94.4
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
Tournament:
Western Cape Top Schools Championship 2024 (U15 Girls)
Start:
2024/08/30
End:
2024/09/01
Host:
WEG
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
0.0
Main rating:
1111.4
Rating gain/loss:
-75.4
Type rating:
1200.0
Rating gain/loss:
-100.1
Analysis
Tournament:
The Rooibos Open 2024 (C)
Start:
2024/08/24
End:
2024/08/24
Host:
WCU
Type:
Rapid
Time:
35
Time weight:
0.66
Rounds:
4
Games:
4
Score:
1.0
Main rating:
1111.4
Rating gain/loss:
-18.5
Type rating:
1066.8
Rating gain/loss:
-17.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
4
Western Cape Top Schools Championship 2024 (U15 Girls)
2024/08/30
2024/09/01
Eden (WEG)
Standard
60
0.83
6
5
0.0
1111.4
1200.0
Analysis
3
The Rooibos Open 2024 (C)
2024/08/24
2024/08/24
West Coast (WCU)
Rapid
35
0.66
5
4
1.0
1111.4
1066.8
Analysis
2
Lambertsbay Youth Open 2024 (Open)
2024/06/17
2024/06/17
West Coast (WCU)
Rapid
33
0.64
5
3
0.0
1146.5
1114.4
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
0.5
1200.0
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
Western Cape Top Schools Championship 2024 (U15 Girls)
2024/08/30
2024/09/01
Eden (WEG)
Standard
60
0.83
6
5
0.0
1111.4
1200.0
Analysis
3
The Rooibos Open 2024 (C)
2024/08/24
2024/08/24
West Coast (WCU)
Rapid
35
0.66
5
4
1.0
1111.4
1066.8
Analysis
2
Lambertsbay Youth Open 2024 (Open)
2024/06/17
2024/06/17
West Coast (WCU)
Rapid
33
0.64
5
3
0.0
1146.5
1114.4
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
0.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
17
1
1
15
1.5
8.8
-350.0
1159.7
809.7
White
7
0
1
6
0.5
7.1
-364.3
1170.8
806.5
Black
10
1
0
9
1.0
10.0
-340.0
1152.0
812.0
Standard
All
5
0
0
5
0.0
0.0
-425.0
1145.0
720.0
White
2
0
0
2
0.0
0.0
-425.0
1139.8
714.8
Black
3
0
0
3
0.0
0.0
-425.0
1148.5
723.5
Rapid
All
12
1
1
10
1.5
12.5
-318.8
1165.9
847.1
White
5
0
1
4
0.5
10.0
-340.0
1183.2
843.2
Black
7
1
0
6
1.0
14.3
-303.6
1153.5
850.0
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
17
1
1
15
1.5
8.8
-350.0
1159.7
809.7
White
7
0
1
6
0.5
7.1
-364.3
1170.8
806.5
Black
10
1
0
9
1.0
10.0
-340.0
1152.0
812.0
Standard
All
5
0
0
5
0.0
0.0
-425.0
1145.0
720.0
White
2
0
0
2
0.0
0.0
-425.0
1139.8
714.8
Black
3
0
0
3
0.0
0.0
-425.0
1148.5
723.5
Rapid
All
12
1
1
10
1.5
12.5
-318.8
1165.9
847.1
White
5
0
1
4
0.5
10.0
-340.0
1183.2
843.2
Black
7
1
0
6
1.0
14.3
-303.6
1153.5
850.0
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1130304926
Horse, M (Mikyle)
2
0.0
0
0
2
0.0
1129.0
-425.0
704.0
View list
2
1110310688
April, M (Mj)
1
1.0
1
0
0
100.0
1111.4
425.0
1536.4
View list
3
2100305068
Klein, Z (Zairah)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
4
1140305086
Januarie, J (Johydin)
1
0.0
0
0
1
0.0
1111.4
-425.0
686.4
View list
5
2100193051
Jacobs, F (Felecia)
1
0.0
0
0
1
0.0
1111.4
-425.0
686.4
View list
6
1100145204
Syster, M (Macneil)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
7
110090536
Stewe, R (Raphael)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
8
2110159903
Siebritz, N (Noelle)
1
0.0
0
0
1
0.0
1146.5
-425.0
721.5
View list
9
2100306305
Pretorius, E (Elzaan Mare)
1
0.0
0
0
1
0.0
1146.5
-425.0
721.5
View list
10
2100307526
Nieman, S (Shannon)
1
0.0
0
0
1
0.0
1111.4
-425.0
686.4
View list
11
2100133799
Mudau, T (Takalani)
1
0.0
0
0
1
0.0
1111.4
-425.0
686.4
View list
12
2100307524
Madungwe, P (Primrose)
1
0.0
0
0
1
0.0
1111.4
-425.0
686.4
View list
13
2090304716
Geswindt, S (Stephline)
1
0.0
0
0
1
0.0
1111.4
-425.0
686.4
View list
14
1090305066
Farmer, J (Julian)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
15
1140310689
Erasmus, J (Joel)
1
0.0
0
0
1
0.0
1111.4
-425.0
686.4
View list
16
1090134282
Engelbrecht, J (Joshniquin)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list