Player Page

Ferreira, J (Johan)
Dob: 2011/07/13 (U14)
Gender: Male
Chess SA id: 1110097320
FIDE id:
Region: Nelson Mandela Bay (ENM)
Citizen: RSA
Title(s):
Last active: 2023/08/25 (266 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 rating1184.3
Curent Weighted rating1170.2
Curent Weighted performance1078.5
Current official/published rating (highest between Raw, WR and WP)1184.3
Current floor (min rating allowed)707.3
Current highest rating achieved1207.3
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)±169.6
Current Raw change used (final)0.0
Projected new Raw rating1184.3
Projected new Weighed rating1172.7
Projected new Weighted performance1078.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1184.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1207.3
Projected new floor707.3
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 rating1143.2
Curent Weighted rating1142.4
Curent Weighted performance959.8
Current official/published rating (highest between Raw, WR and WP)1143.2
Current floor (min rating allowed)698.8
Current highest rating achieved1198.8
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)±179.8
Current Raw change used (final)0.0
Projected new Raw rating1143.2
Projected new Weighed rating1142.9
Projected new Weighted performance959.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1143.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1198.8
Projected new floor698.8
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 rating1225.6
Curent Weighted rating1201.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1225.6
Current floor (min rating allowed)725.6
Current highest rating achieved1225.6
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)±159.9
Current Raw change used (final)0.0
Projected new Raw rating1225.6
Projected new Weighed rating1205.3
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1225.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1225.6
Projected new floor725.6
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)725.6
Current highest rating achieved1200.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1200.0
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 rating1200.0
Projected new floor725.6
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
15 Stulting Sportdag 2023 (Senior) 2023/08/25 2023/08/25 Sarah Baartman (ESB) Rapid 15 0.39 6 5 3.0 1166.6 1192.8 Analysis
14 SBDCU Trial 3 2023 (U14) 2023/06/24 2023/06/24 Sarah Baartman (ESB) Standard 65 0.85 6 5 1.0 1207.3 1198.8 Analysis
13 Paul Sauer Chess Tournament 2023 (Senior) 2023/05/05 2023/05/05 Sarah Baartman (ESB) Rapid 15 0.39 6 6 4.0 1191.2 1135.6 Analysis
12 Kouga Mayor's Cup 2023 (U13) 2023/04/15 2023/04/15 Sarah Baartman (ESB) Standard 62 0.84 6 6 3.5 1118.0 1121.6 Analysis
11 SBDCU Trial 2 2023 (U14 Boys) 2023/04/01 2023/04/01 Sarah Baartman (ESB) Standard 62 0.84 5 5 2.0 1118.0 1121.6 Analysis
10 SBDCU Trial 1 2023 (U14) 2023/03/05 2023/03/05 Sarah Baartman (ESB) Standard 60 0.83 5 5 2.0 1107.0 1114.0 Analysis
9 Bloeisel Fees 2022 (Primary School A) 2022/10/29 2022/10/29 Sarah Baartman (ESB) Rapid 15 0.39 7 6 2.0 1109.3 1144.0 Analysis
8 2020 NMBCU Chess Trial 1 (U10) 2020/02/08 2020/02/09 Nelson Mandela Bay (ENM) Standard 60 0.83 6 4 2.0 1101.0 1106.8 Analysis
7 NMBCU Trials 1 2019 (U10) 2019/03/08 2019/03/09 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 2.5 1079.8 1082.8 Analysis
6 South African Junior Team Championships 2018 (U8A) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 2.0 1125.4 1126.4 Analysis
5 NMBJC Closed 2018 (U8) 2018/07/27 2018/07/28 Nelson Mandela Bay (ENM) Standard 60 0.83 7 6 1.5 1138.3 1160.4 Analysis
4 NMBJC Trials 4 2018 (U8) 2018/07/21 2018/07/21 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 2.5 1138.3 1160.4 Analysis
3 NMB Second Trials 2018 (U8) 2018/04/20 2018/04/22 Nelson Mandela Bay (ENM) Standard 120 1.00 5 1 0.0 1159.1 1182.0 Analysis
2 NMB First Trails 2018 (U8) 2018/03/24 2018/03/24 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 2.5 1166.4 1200.0 Analysis
1 Despatch Open 2018 (B) 2018/02/17 2018/02/17 Nelson Mandela Bay (ENM) Rapid 30 0.60 5 4 1.0 1200.0 1200.0 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 75 28 7 40 31.5 42.0 -68.0 1215.2 1147.2
White 38 13 2 23 14.0 36.8 -111.8 1238.7 1126.8
Black 37 15 5 17 17.5 47.3 -23.0 1191.1 1168.1
Standard All 54 19 5 30 21.5 39.8 -86.6 1213.8 1127.3
White 26 6 1 19 6.5 25.0 -212.5 1240.3 1027.8
Black 28 13 4 11 15.0 53.6 30.4 1189.3 1219.6
Rapid All 21 9 2 10 10.0 47.6 -20.2 1218.7 1198.5
White 12 7 1 4 7.5 62.5 106.3 1235.1 1341.4
Black 9 2 1 6 2.5 27.8 -188.9 1196.8 1008.0
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 2110099521 Kritzinger, L (Lune) 3 0.0 0 0 3 0.0 1145.2 -425.0 720.2 View list
2 2110097725 Rautenbach, L (Lanelle) 3 0.0 0 0 3 0.0 1147.7 -425.0 722.7 View list
3 1110131272 Madatt, J (Josh Darren) 2 2.0 2 0 0 100.0 1104.0 425.0 1529.0 View list
4 1110097726 Steenkamp, N (Nathan) 2 1.5 1 1 0 75.0 1152.3 212.5 1364.8 View list
5 1110140911 Gasura, E (Emmanuel) 2 1.0 1 0 1 50.0 1112.5 0.0 1112.5 View list
6 2100151710 Williams, M (Meagan) 2 1.0 1 0 1 50.0 1157.2 0.0 1157.2 View list
7 1110137782 Stoop, C (Connor) 2 0.0 0 0 2 0.0 1162.7 -425.0 737.7 View list
8 111087672 Twigg, G (Garen) 2 0.0 0 0 2 0.0 1152.3 -425.0 727.3 View list
9 1100111035 Grant, W (William) 1 1.0 1 0 0 100.0 1079.8 425.0 1504.8 View list
10 1120104243 Gouws, L (Logan) 1 1.0 1 0 0 100.0 1138.3 425.0 1563.3 View list
11 1100146239 Hendricks, Z (Zeno) 1 1.0 1 0 0 100.0 1166.6 425.0 1591.6 View list
12 1100147609 Handley, C (Christopher Michael) 1 1.0 1 0 0 100.0 1118.0 425.0 1543.0 View list
13 1110154794 Jones, Z (Zackery) 1 1.0 1 0 0 100.0 1191.2 425.0 1616.2 View list
14 1100140908 Botha, X (Xadrian) 1 1.0 1 0 0 100.0 1166.6 425.0 1591.6 View list
15 1110099526 Lindemann, N (Noah) 1 1.0 1 0 0 100.0 1166.4 425.0 1591.4 View list
16 1110096819 Louw, I (Ignis) 1 1.0 1 0 0 100.0 1125.4 425.0 1550.4 View list
17 1120099524 Lynch, D (Daniel) 1 1.0 1 0 0 100.0 1166.4 425.0 1591.4 View list
18 2110104246 Maphazi, A (Amila) 1 1.0 1 0 0 100.0 1138.3 425.0 1563.3 View list
19 1090154796 Mendenhell, L (Luthando) 1 1.0 1 0 0 100.0 1191.2 425.0 1616.2 View list
20 1120100419 Mofokeng, B (Bokang) 1 1.0 1 0 0 100.0 1125.4 425.0 1550.4 View list