Player Page

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 (700 days ago)
Ratings
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 rating1199.7
Curent Weighted rating1199.7
Curent Weighted performance768.0
Current official/published rating (highest between Raw, WR and WP)1199.7
Current floor (min rating allowed)699.7
Current highest rating achieved1199.7
Current K-factor40
Games played this month0
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 rating1199.7
Projected new Weighed rating1199.7
Projected new Weighted performance768.0
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 rating1199.7
Projected new floor699.7
Projected new K-facor40
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 rating1211.2
Curent Weighted rating1211.2
Curent Weighted performance770.0
Current official/published rating (highest between Raw, WR and WP)1211.2
Current floor (min rating allowed)711.2
Current highest rating achieved1211.2
Current K-factor36
Games played this month0
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 rating1211.2
Projected new Weighed rating1211.2
Projected new Weighted performance770.0
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 rating1211.2
Projected new floor711.2
Projected new K-facor36
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 rating726.4
Curent Weighted rating726.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)726.4
Current floor (min rating allowed)500.0
Current highest rating achieved726.4
Current K-factor40
Games played this month0
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 rating726.4
Projected new Weighed rating726.4
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 rating726.4
Projected new floor500.0
Projected new K-facor40
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 rating726.4
Curent Weighted rating726.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)726.4
Current floor (min rating allowed)500.0
Current highest rating achieved726.4
Current K-factor40
Games played this month0
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 rating726.4
Projected new Weighed rating726.4
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 rating726.4
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
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
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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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