Player Page

Van Zyl, J (Johanna)
Dob: 2014/07/03 (U12)
Gender: Female
Chess SA id: 2140146480
FIDE id:
Region: Pixley-ka-Seme (NCP)
Citizen: RSA
Title(s):
Last active: 2024/10/12 (41 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
Current Raw rating1156.3
Current Weighted rating1129.0
Current Weighted performance1141.5
Current official/published rating (highest between Raw, WR and WP)1156.3
Current highest rating achieved1172.1
Current floor (min rating allowed)672.1
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)±176.5
Current Raw change used (final)0.0
Projected new Raw rating1156.3
Projected new Weighed rating1038.7
Projected new Weighted performance1141.5
Projected new final Raw rating (if new WP > new Raw)1156.3
Projected new highest rating1172.1
Projected new floor672.1
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1156.3
Projected effective change (new Official - current Official)=0.0
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
Current Raw rating1151.7
Current Weighted rating1121.9
Current Weighted performance1141.5
Current official/published rating (highest between Raw, WR and WP)1151.7
Current highest rating achieved1172.5
Current floor (min rating allowed)672.5
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)±177.6
Current Raw change used (final)0.0
Projected new Raw rating1151.7
Projected new Weighed rating1032.4
Projected new Weighted performance1141.5
Projected new final Raw rating (if new WP > new Raw)1151.7
Projected new highest rating1172.5
Projected new floor672.5
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1151.7
Projected effective change (new Official - current Official)=0.0
s
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
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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 rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
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
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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 rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
10 2024 Hopetown Schools Chess Tournament (U9+U11) 2024/10/12 2024/10/12 Pixley-ka-Seme (NCP) Standard 62 0.84 5 5 2.0 1172.1 1172.5 Analysis
9 2024 NC Closed Chess Championships (U12 Girls) 2024/08/23 2024/08/25 Frances Baard (NCF) Standard 92 0.94 5 5 4.0 1065.7 1054.4 Analysis
8 Hopetown Schools Chess Tournament 2024 (U11) 2024/08/17 2024/08/17 Pixley-ka-Seme (NCP) Standard 62 0.84 5 4 0.5 1065.7 1054.4 Analysis
7 2024 Pixley Ka Seme Chess Schools Open 2 (U11) 2024/08/03 2024/08/03 Pixley-ka-Seme (NCP) Standard 62 0.84 5 5 3.0 1065.7 1054.4 Analysis
6 2024 HSDA Open 3 (U11) 2024/07/27 2024/07/27 Pixley-ka-Seme (NCP) Standard 62 0.84 5 5 2.0 1101.7 1095.6 Analysis
5 2024 Frances Baard Grand Prix 2.0 (B) 2024/07/06 2024/07/06 Frances Baard (NCF) Standard 62 0.84 5 4 0.0 1101.7 1095.6 Analysis
4 Frances Baard Grand Prix 1.0 2024 (U12) 2024/06/29 2024/06/29 Frances Baard (NCF) Standard 62 0.84 5 5 1.0 1139.3 1142.0 Analysis
3 Spartan Bishops Chess Championships 2024 (Big Pawns) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1166.9 1170.0 Analysis
2 Hopetown Open Chess Tournament 2024 (U12) 2024/02/10 2024/02/10 Frances Baard (NCF) Standard 62 0.84 5 5 3.0 1099.4 1083.2 Analysis
1 2024 Frances Baard Schools Open (U11) 2024/02/03 2024/02/03 Frances Baard (NCF) Standard 62 0.84 5 5 3.0 1099.4 1083.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
14 2024 Hopetown Schools Chess Tournament (U9+U11) 2024/10/12 2024/10/12 Pixley-ka-Seme (NCP) Standard 62 0.84 5 5 2.0 1172.1 1172.5 Analysis
13 2024 NC Closed Chess Championships (U12 Girls) 2024/08/23 2024/08/25 Frances Baard (NCF) Standard 92 0.94 5 5 4.0 1065.7 1054.4 Analysis
12 Hopetown Schools Chess Tournament 2024 (U11) 2024/08/17 2024/08/17 Pixley-ka-Seme (NCP) Standard 62 0.84 5 4 0.5 1065.7 1054.4 Analysis
11 2024 Pixley Ka Seme Chess Schools Open 2 (U11) 2024/08/03 2024/08/03 Pixley-ka-Seme (NCP) Standard 62 0.84 5 5 3.0 1065.7 1054.4 Analysis
10 2024 HSDA Open 3 (U11) 2024/07/27 2024/07/27 Pixley-ka-Seme (NCP) Standard 62 0.84 5 5 2.0 1101.7 1095.6 Analysis
9 2024 Frances Baard Grand Prix 2.0 (B) 2024/07/06 2024/07/06 Frances Baard (NCF) Standard 62 0.84 5 4 0.0 1101.7 1095.6 Analysis
8 Frances Baard Grand Prix 1.0 2024 (U12) 2024/06/29 2024/06/29 Frances Baard (NCF) Standard 62 0.84 5 5 1.0 1139.3 1142.0 Analysis
7 Spartan Bishops Chess Championships 2024 (Big Pawns) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1166.9 1170.0 Analysis
6 Hopetown Open Chess Tournament 2024 (U12) 2024/02/10 2024/02/10 Frances Baard (NCF) Standard 62 0.84 5 5 3.0 1099.4 1083.2 Analysis
5 2024 Frances Baard Schools Open (U11) 2024/02/03 2024/02/03 Frances Baard (NCF) Standard 62 0.84 5 5 3.0 1099.4 1083.2 Analysis
4 2023 Northern Cape Closed Chess Championships (U10 Girls) 2023/08/25 2023/08/27 Frances Baard (NCF) Standard 92 0.94 4 4 2.0 1091.5 1072.4 Analysis
3 Inter Regional Chess Championship 2023 (U10) 2023/05/19 2023/05/20 Mangaung (FMB) Standard 62 0.84 5 4 0.0 1155.0 1146.4 Analysis
2 Hopetown Schools Chess Open Tournament 2023 (U11) 2023/02/25 2023/02/25 John Taolo Gaetswewe (NCJ) Standard 62 0.84 5 5 2.0 1168.1 1160.8 Analysis
1 Pixley Chess Trials 2022 (U10) 2022/09/03 2022/09/03 Pixley-ka-Seme (NCP) Standard 62 0.84 5 4 1.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 48 17 5 26 19.5 40.6 -79.7 1208.9 1129.2
White 23 7 3 13 8.5 37.0 -110.9 1224.9 1114.1
Black 25 10 2 13 11.0 44.0 -51.0 1194.1 1143.1
Standard All 48 17 5 26 19.5 40.6 -79.7 1208.9 1129.2
White 23 7 3 13 8.5 37.0 -110.9 1224.9 1114.1
Black 25 10 2 13 11.0 44.0 -51.0 1194.1 1143.1
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 65 21 7 37 24.5 37.7 -104.6 1201.6 1097.0
White 32 9 4 19 11.0 34.4 -132.8 1216.0 1083.2
Black 33 12 3 18 13.5 40.9 -77.3 1187.6 1110.3
Standard All 65 21 7 37 24.5 37.7 -104.6 1201.6 1097.0
White 32 9 4 19 11.0 34.4 -132.8 1216.0 1083.2
Black 33 12 3 18 13.5 40.9 -77.3 1187.6 1110.3
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 1140146479 Van Zyl, F (Frederick) 6 0.5 0 1 5 8.3 1112.4 -354.2 758.2 View list
2 2140140889 Niesing, N (Naomi) 5 3.0 3 0 2 60.0 1107.6 85.0 1192.6 View list
3 2130192451 Heyns, R (Rashnique) 3 2.5 2 1 0 83.3 1088.9 283.3 1372.3 View list
4 1140150640 Viljoen, J (Joshua) 3 1.0 1 0 2 33.3 1088.9 -141.7 947.3 View list
5 1130146476 Green, M (Melanique) 2 2.0 2 0 0 100.0 1135.8 425.0 1560.8 View list
6 2130136585 Fischer, C (Calinke) 2 1.0 1 0 1 50.0 1082.6 0.0 1082.6 View list
7 1130156835 Du Preez, J (Jody) 2 0.5 0 1 1 25.0 1083.7 -212.5 871.2 View list
8 1150140884 Finck, LS (Lynden Shikamaru) 2 0.0 0 0 3 0.0 1118.9 -425.0 693.9 View list
9 1130300169 Boyo, B (Boikanyo) 2 0.0 0 0 2 0.0 1120.5 -425.0 695.5 View list
10 1140192382 Bok, O (Omolemo) 2 0.0 0 0 2 0.0 1120.5 -425.0 695.5 View list
11 1130159420 De Kock, M (Micah) 2 0.0 0 0 2 0.0 1135.8 -425.0 710.8 View list
12 2150147000 Mokoena, N (Naledientle) 2 0.0 0 0 2 0.0 1123.3 -425.0 698.3 View list
13 1140191646 Mogalie, L (Liam Serame Tyrique) 1 1.0 1 0 0 100.0 1099.4 425.0 1524.4 View list
14 2140138310 Matthys, E (Eliana) 1 1.0 1 0 0 100.0 1065.7 425.0 1490.7 View list
15 1140134181 Bruwer, L (Louis) 1 1.0 1 0 0 100.0 1099.4 425.0 1524.4 View list
16 2140161421 Dire, M (Motse) 1 1.0 1 0 0 100.0 1091.5 425.0 1516.5 View list
17 1150310166 Green, A (Alexander Kenneth) 1 1.0 1 0 0 100.0 1172.1 425.0 1597.1 View list
18 2140148591 Fourie, R (Rosa Hermiena) 1 1.0 1 0 0 100.0 1065.7 425.0 1490.7 View list
19 1140159351 Jansen, A (Aimee) 1 1.0 1 0 0 100.0 1099.4 425.0 1524.4 View list
20 1140303170 Mokefane, K (Kopano) 1 1.0 1 0 0 100.0 1166.9 425.0 1591.9 View list