Chess South Africa
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Chess South Africa
Rostoll, A (Arno)
Dob:
2017/09/17 (U8)
Gender:
Male
Chess SA id:
1170192944
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2024/05/05 (28 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
1339.7
Curent Weighted rating
1241.9
Curent Weighted performance
1300.2
Current official/published rating (highest between Raw, WR and WP)
1339.7
Current floor (min rating allowed)
883.9
Current highest rating achieved
1383.9
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)
±135.9
Current Raw change used (final)
0.0
Projected new Raw rating
1339.7
Projected new Weighed rating
1251.2
Projected new Weighted performance
1300.2
Projected new official/published rating (highest between new Raw, new WR and new WP)
1339.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1383.9
Projected new floor
883.9
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
1329.2
Curent Weighted rating
1243.6
Curent Weighted performance
1299.0
Current official/published rating (highest between Raw, WR and WP)
1329.2
Current floor (min rating allowed)
882.5
Current highest rating achieved
1382.5
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)
±137.9
Current Raw change used (final)
0.0
Projected new Raw rating
1329.2
Projected new Weighed rating
1252.0
Projected new Weighted performance
1299.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1329.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1382.5
Projected new floor
882.5
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
0.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
Projected new Weighted performance
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
Projected new highest rating
0.0
Projected new floor
700.0
Projected new K-facor
40
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
0.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
Projected new Weighted performance
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
Projected new highest rating
0.0
Projected new floor
700.0
Projected new K-facor
40
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
6
Western Cape PS Individuals Championship 2024 (U7 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
2.5
1383.9
1382.5
Analysis
5
Eden Chess Trials 2 2024 (U8)
2024/04/13
2024/04/20
Eden (WEG)
Standard
60
0.83
10
10
6.0
1344.6
1365.0
Analysis
4
Eden School Chess Trials 1 2024 (U7 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1286.3
1302.0
Analysis
3
George Schools Trials 3 2024 (U7 Boys)
2024/03/02
2024/03/02
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1286.3
1302.0
Analysis
2
George Schools Trials 2 2024 (U7 Boys)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
5
5.0
1200.0
1200.0
Analysis
1
George Schools Trials 1 2024 (U7 Boys)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1200.0
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
6
Western Cape PS Individuals Championship 2024 (U7 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
2.5
1383.9
1382.5
Analysis
5
Eden Chess Trials 2 2024 (U8)
2024/04/13
2024/04/20
Eden (WEG)
Standard
60
0.83
10
10
6.0
1344.6
1365.0
Analysis
4
Eden School Chess Trials 1 2024 (U7 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1286.3
1302.0
Analysis
3
George Schools Trials 3 2024 (U7 Boys)
2024/03/02
2024/03/02
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1286.3
1302.0
Analysis
2
George Schools Trials 2 2024 (U7 Boys)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
5
5.0
1200.0
1200.0
Analysis
1
George Schools Trials 1 2024 (U7 Boys)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
36
24
1
11
24.5
68.1
153.5
1200.1
1353.6
White
20
17
1
2
17.5
87.5
318.8
1188.0
1506.8
Black
16
7
0
9
7.0
43.8
-53.1
1215.2
1162.1
Standard
All
36
24
1
11
24.5
68.1
153.5
1200.1
1353.6
White
20
17
1
2
17.5
87.5
318.8
1188.0
1506.8
Black
16
7
0
9
7.0
43.8
-53.1
1215.2
1162.1
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
36
24
1
11
24.5
68.1
153.5
1200.1
1353.6
White
20
17
1
2
17.5
87.5
318.8
1188.0
1506.8
Black
16
7
0
9
7.0
43.8
-53.1
1215.2
1162.1
Standard
All
36
24
1
11
24.5
68.1
153.5
1200.1
1353.6
White
20
17
1
2
17.5
87.5
318.8
1188.0
1506.8
Black
16
7
0
9
7.0
43.8
-53.1
1215.2
1162.1
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
1170192945
Vermeulen, E (Elster)
6
4.0
4
0
2
66.7
1283.5
141.7
1425.2
View list
2
1170148816
Van Der Merwe, F (Finley)
5
2.0
2
0
3
40.0
1263.4
-85.0
1178.4
View list
3
1170192941
Muller, D (Darryn)
3
3.0
3
0
0
100.0
1277.0
425.0
1702.0
View list
4
1170192943
Rens, D (Deauwin)
3
2.0
2
0
1
66.7
1277.0
141.7
1418.6
View list
5
1170192937
Hessie, L (Luke)
2
2.0
2
0
0
100.0
1243.2
425.0
1668.2
View list
6
1170192938
Kennedy, C (Cuan)
2
2.0
2
0
0
100.0
1243.2
425.0
1668.2
View list
7
1170156971
Cornforth, J (Joshua)
2
1.0
1
0
1
50.0
1272.3
0.0
1272.3
View list
8
1170300082
Le Roux, M (Markus)
1
1.0
1
0
0
100.0
1383.9
425.0
1808.9
View list
9
1170192939
Kotze, B (Barend)
1
1.0
1
0
0
100.0
1286.3
425.0
1711.3
View list
10
1170191220
Stein, J (Jack)
1
1.0
1
0
0
100.0
1383.9
425.0
1808.9
View list
11
2170300538
Janse Van Rensburg, L (Louise)
1
1.0
1
0
0
100.0
1344.6
425.0
1769.6
View list
12
2170148873
Eiliyah, D (Drude)
1
1.0
1
0
0
100.0
1344.6
425.0
1769.6
View list
13
1170192936
Dimatellis, N (Niko)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
14
1170193019
Bruiners, J (Jeanne)
1
1.0
1
0
0
100.0
1344.6
425.0
1769.6
View list
15
2170193021
Bezuidenhout, C (Clara)
1
1.0
1
0
0
100.0
1344.6
425.0
1769.6
View list
16
1170193573
Baron, R (Raziel)
1
0.5
0
1
0
50.0
1383.9
0.0
1383.9
View list
17
1170148877
Wyngaard, L (Luke)
1
0.0
0
0
1
0.0
1286.3
-425.0
861.3
View list
18
1170192942
Rens, B (Beauwin)
1
0.0
0
0
1
0.0
1344.6
-425.0
919.6
View list
19
1170300085
Louw, S (Sarel Johannes)
1
0.0
0
0
1
0.0
1383.9
-425.0
958.9
View list
20
1170300084
Lourens, L (Lihan)
1
0.0
0
0
1
0.0
1383.9
-425.0
958.9
View list