Chess South Africa
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Chess South Africa
Serra Coelho, E (Ethan)
Dob:
2005/06/19 (U20)
Gender:
Male
Chess SA id:
105089344
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2022/06/18 (701 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
1199.7
Curent Weighted rating
1199.7
Curent Weighted performance
767.5
Current official/published rating (highest between Raw, WR and WP)
1199.7
Current floor (min rating allowed)
699.7
Current highest rating achieved
1199.7
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)
±165.9
Current Raw change used (final)
0.0
Projected new Raw rating
1199.7
Projected new Weighed rating
1199.7
Projected new Weighted performance
767.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1199.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1199.7
Projected new floor
699.7
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
1211.2
Curent Weighted rating
1211.2
Curent Weighted performance
769.5
Current official/published rating (highest between Raw, WR and WP)
1211.2
Current floor (min rating allowed)
711.2
Current highest rating achieved
1211.2
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)
±163.2
Current Raw change used (final)
0.0
Projected new Raw rating
1211.2
Projected new Weighed rating
1211.2
Projected new Weighted performance
769.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1211.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1211.2
Projected new floor
711.2
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
726.4
Curent Weighted rating
726.4
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
726.4
Current floor (min rating allowed)
500.0
Current highest rating achieved
726.4
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)
±325.6
Current Raw change used (final)
0.0
Projected new Raw rating
726.4
Projected new Weighed rating
726.4
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
726.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
726.4
Projected new floor
500.0
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
726.4
Curent Weighted rating
726.4
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
726.4
Current floor (min rating allowed)
500.0
Current highest rating achieved
726.4
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)
±325.6
Current Raw change used (final)
0.0
Projected new Raw rating
726.4
Projected new Weighed rating
726.4
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
726.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
726.4
Projected new floor
500.0
Projected new K-facor
40
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
16
2022 Gauteng Schools Individual Chess Championship (U18 Boys)
2022/06/18
2022/06/18
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1157.2
1159.6
Analysis
15
Ekurhuleni Trials 2 2022 (U20)
2022/05/28
2022/05/28
Ekurhuleni (GE)
Standard
62
0.84
5
5
2.0
1172.7
1180.4
Analysis
14
2019 Gauteng School League Finals (U15 Open)
2019/08/24
2019/08/24
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1110.9
1104.4
Analysis
13
2018 Wild Card Chess Championships (U14 Open)
2018/12/21
2018/12/24
4 Knights (4K)
Standard
120
1.00
7
6
3.0
994.9
983.2
Analysis
12
South African Junior Team Championships 2018 (U14E)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
6
5.0
994.9
983.2
Analysis
11
2018 Interregion Sedibeng vs Ekurhuleni (J)
2018/11/03
2018/11/03
Sedibeng (GSV)
Standard
60
0.83
5
5
2.0
990.9
974.4
Analysis
10
Boksburg Chess Club Open 2018 (U14)
2018/07/14
2018/07/14
Ekurhuleni (GE)
Standard
60
0.83
5
1
0.0
1001.5
986.4
Analysis
9
Ekurhuleni Trials 3 2018 (U14)
2018/06/16
2018/06/16
Ekurhuleni (GE)
Standard
60
0.83
5
5
1.5
1100.1
1105.2
Analysis
8
Primrose Chess Club Open 2018 (C)
2018/06/02
2018/06/02
Ekurhuleni (GE)
Standard
60
0.83
5
5
1.5
1100.1
1105.2
Analysis
7
2018 Gauteng Secondary Schools Individual Chess Championships (U13 Boys)
2018/05/25
2018/05/25
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
927.3
934.6
Analysis
6
Ekurhuleni North Schools Individuals 2018 (U13 Boys)
2018/05/12
2018/05/12
Ekurhuleni (GE)
Standard
60
0.83
5
4
3.0
927.3
934.6
Analysis
5
Ekurhuleni Trials 2 2018 (U14)
2018/04/21
2018/04/21
Ekurhuleni (GE)
Standard
60
0.83
5
5
2.5
812.0
834.0
Analysis
4
Ekurhuleni Trials 1 2018 (U14)
2018/03/10
2018/03/10
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.5
744.3
752.0
Analysis
3
Brakpan Open 2018 (C)
2018/02/24
2018/02/24
Ekurhuleni (GE)
Standard
60
0.83
5
4
2.0
714.8
714.8
Analysis
2
Elspark Open 2018 (C)
2018/02/10
2018/02/10
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
714.8
714.8
Analysis
1
South African Junior Wildcard Championships 2017 (U14 Open)
2018/01/09
2018/01/12
4 Knights (4K)
Standard
120
1.00
7
7
2.0
726.4
726.4
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
78
38
4
36
40.0
51.3
10.9
1036.6
1047.5
White
39
23
2
14
24.0
61.5
98.1
1014.5
1112.5
Black
39
15
2
22
16.0
41.0
-76.3
1058.7
982.4
Standard
All
78
38
4
36
40.0
51.3
10.9
1036.6
1047.5
White
39
23
2
14
24.0
61.5
98.1
1014.5
1112.5
Black
39
15
2
22
16.0
41.0
-76.3
1058.7
982.4
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
105059134
De Swardt, E (Eduan)
2
0.5
0
1
1
25.0
903.5
-212.5
691.0
View list
2
105053198
Masemeni, K (Keabetswe)
2
0.5
0
1
1
25.0
735.3
-212.5
522.8
View list
3
105009732
Fourie, B (Brandon)
2
0.0
0
0
2
0.0
1019.1
-425.0
594.1
View list
4
106066129
Macdonald, B (Brandon)
2
0.0
0
0
2
0.0
763.4
-425.0
338.4
View list
5
106092829
Ahrens, H (Heinrich)
1
1.0
1
0
0
100.0
744.3
425.0
1169.3
View list
6
105073361
Africa, L (Lindsay)
1
1.0
1
0
0
100.0
726.4
425.0
1151.4
View list
7
105060800
Beukes, JC (Jaeden)
1
1.0
1
0
0
100.0
994.9
425.0
1419.9
View list
8
105081203
Bambo, K (Kamogelo)
1
1.0
1
0
0
100.0
726.4
425.0
1151.4
View list
9
2060141433
Connon, M (Michaela)
1
1.0
1
0
0
100.0
1172.7
425.0
1597.7
View list
10
104094008
Fourie, AJ (Arno Jaden)
1
1.0
1
0
0
100.0
1110.9
425.0
1535.9
View list
11
205079715
Evans, R (Robyn)
1
1.0
1
0
0
100.0
744.3
425.0
1169.3
View list
12
206055118
Ellman, A (Anne-Belle)
1
1.0
1
0
0
100.0
994.9
425.0
1419.9
View list
13
105008491
Dykema, JD (Joshua)
1
1.0
1
0
0
100.0
1110.9
425.0
1535.9
View list
14
105008461
Duvenhage, LC (Leon)
1
1.0
1
0
0
100.0
994.9
425.0
1419.9
View list
15
105008026
Du Preez, E (Estiaan)
1
1.0
1
0
0
100.0
994.9
425.0
1419.9
View list
16
1060098208
Delport, M (Marchia)
1
1.0
1
0
0
100.0
1100.1
425.0
1525.1
View list
17
105085039
Hanekom, D (Dylan)
1
1.0
1
0
0
100.0
990.9
425.0
1415.9
View list
18
2060101365
Harmse, D (Dominique)
1
1.0
1
0
0
100.0
1172.7
425.0
1597.7
View list
19
1050103098
Hasan, M (Mohammed)
1
1.0
1
0
0
100.0
1100.1
425.0
1525.1
View list
20
1000101328
He, N (Nickson)
1
1.0
1
0
0
100.0
927.3
425.0
1352.3
View list