Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
De Koster, A (Arenda)
Dob:
2000/03/14 (Adult)
Gender:
Female
Chess SA id:
200006628
FIDE id:
Region:
Sedibeng (GSV)
Citizen:
RSA
Title(s):
Last active:
2018/12/20 (1977 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
1231.6
Curent Weighted rating
1231.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1231.6
Current floor (min rating allowed)
779.0
Current highest rating achieved
1279.0
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)
±158.5
Current Raw change used (final)
0.0
Projected new Raw rating
1231.6
Projected new Weighed rating
1231.6
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1231.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1279.0
Projected new floor
779.0
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
1230.8
Curent Weighted rating
1230.8
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1230.8
Current floor (min rating allowed)
779.0
Current highest rating achieved
1279.0
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)
±158.7
Current Raw change used (final)
0.0
Projected new Raw rating
1230.8
Projected new Weighed rating
1230.8
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1230.8
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1279.0
Projected new floor
779.0
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
1265.0
Curent Weighted rating
1236.8
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1265.0
Current floor (min rating allowed)
779.0
Current highest rating achieved
1279.0
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)
±151.1
Current Raw change used (final)
0.0
Projected new Raw rating
1265.0
Projected new Weighed rating
1239.6
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1265.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1279.0
Projected new floor
779.0
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
1227.0
Curent Weighted rating
1222.8
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1227.0
Current floor (min rating allowed)
779.0
Current highest rating achieved
1279.0
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)
±159.6
Current Raw change used (final)
0.0
Projected new Raw rating
1227.0
Projected new Weighed rating
1223.2
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1227.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1279.0
Projected new floor
779.0
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
1
South African Junior Team Championships 2018 (U20B)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
6
4.0
1220.4
1220.4
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
6
4
0
2
4.0
66.7
141.7
1123.5
1265.2
White
3
1
0
2
1.0
33.3
-141.7
1222.8
1081.2
Black
3
3
0
0
3.0
100.0
425.0
1024.2
1449.2
Standard
All
6
4
0
2
4.0
66.7
141.7
1123.5
1265.2
White
3
1
0
2
1.0
33.3
-141.7
1222.8
1081.2
Black
3
3
0
0
3.0
100.0
425.0
1024.2
1449.2
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
201034278
Shaba, K (Keneuwe)
1
1.0
1
0
0
100.0
1220.4
425.0
1645.4
View list
2
2990104015
Manyate, S (Sibongile)
1
1.0
1
0
0
100.0
1220.4
425.0
1645.4
View list
3
201047585
Koen, A (Andrea)
1
1.0
1
0
0
100.0
1220.4
425.0
1645.4
View list
4
102004427
Chang, N (Nelson)
1
1.0
1
0
0
100.0
1220.4
425.0
1645.4
View list
5
100051203
Zondo, LC (Linda)
1
0.0
0
0
1
0.0
1220.4
-425.0
795.4
View list
6
100002662
Booysen, WH (Willem-Hendrik)
1
0.0
0
0
1
0.0
1220.4
-425.0
795.4
View list
