Player Page

Van Heerden, D (David)
Dob: 2013/03/04 (U12)
Gender: Male
Chess SA id: 1130111809
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2023/05/26 (358 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 rating1019.5
Curent Weighted rating1024.3
Curent Weighted performance780.3
Current official/published rating (highest between Raw, WR and WP)1024.3
Current floor (min rating allowed)680.4
Current highest rating achieved1180.4
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)±214.4
Current Raw change used (final)0.0
Projected new Raw rating1019.5
Projected new Weighed rating1023.4
Projected new Weighted performance780.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1023.4
Projected effective change (new Official - current Official)-0.8
Projected new highest rating1180.4
Projected new floor680.4
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 rating1010.7
Curent Weighted rating1016.2
Curent Weighted performance750.6
Current official/published rating (highest between Raw, WR and WP)1016.2
Current floor (min rating allowed)674.0
Current highest rating achieved1174.0
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)±217.1
Current Raw change used (final)0.0
Projected new Raw rating1010.7
Projected new Weighed rating1015.2
Projected new Weighted performance750.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1015.2
Projected effective change (new Official - current Official)-0.9
Projected new highest rating1174.0
Projected new floor674.0
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 rating1160.0
Curent Weighted rating1160.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1160.0
Current floor (min rating allowed)660.0
Current highest rating achieved1160.0
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)±175.5
Current Raw change used (final)0.0
Projected new Raw rating1160.0
Projected new Weighed rating1160.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1160.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1160.0
Projected new floor660.0
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 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)660.0
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 floor660.0
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
16 Gauteng Schools Individual Finals 2023 (U11 Boys) 2023/05/26 2023/05/26 Ekurhuleni (GE) Standard 60 0.83 5 5 1.0 1040.1 1034.3 Analysis
15 JMC 3rd Trials 2022 (U10) 2022/09/11 2022/09/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.0 1057.4 1053.9 Analysis
14 JMC Trials 1 - Laerskool Fontainebleau 2022 (U10) 2022/07/24 2022/07/24 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1027.9 1016.3 Analysis
13 JMC Helpmekaar 2021 (U10) 2021/09/06 2021/09/06 Johannesburg Metro (GJM) Rapid 30 0.60 5 4 1.0 1027.2 1200.0 Analysis
12 2019 South African Junior Team Championships (U8B+U8Girls) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 2.0 1059.6 1048.3 Analysis
11 GJM vs GE Inter Region 2019 (U8) 2019/10/05 2019/10/05 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1072.2 1065.9 Analysis
10 Proewe 2019 (U8) 2019/08/03 2019/08/03 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 3.0 1013.5 984.4 Analysis
9 JHB Metro Closed 2019 (U8) 2019/07/27 2019/07/28 Johannesburg Metro (GJM) Standard 90 0.94 6 5 1.0 1081.5 1056.8 Analysis
8 JNW Club - Helpmekaar Kollege Open 2019 (F) 2019/07/06 2019/07/06 Johannesburg Metro (GJM) Standard 60 0.83 5 4 0.0 1081.5 1056.8 Analysis
7 JNW Club - Hoerskool Linden 2019 (F) 2019/06/15 2019/06/15 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1162.5 1153.6 Analysis
6 Fonties Challange 2019 (U7) 2019/06/08 2019/06/08 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1162.5 1153.6 Analysis
5 Vaal Chess Club Open 2019 (D) 2019/06/01 2019/06/01 Sedibeng (GSV) Standard 61 0.83 5 4 0.5 1162.5 1153.6 Analysis
4 Volkies 2019 (U10B) 2019/05/11 2019/05/11 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 1180.4 1174.0 Analysis
3 Ekurhuleni Trials 2 2019 (U8) 2019/04/27 2019/04/27 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
2 JNW Club - Charterhouse Open 2019 (F) 2019/04/13 2019/04/13 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.0 1200.0 1200.0 Analysis
1 Chessnuts Under 1200 6 April 2019 (Pawns) 2019/04/06 2019/04/06 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 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 79 22 10 47 27.0 34.2 -134.5 1189.5 1055.0
White 42 11 7 24 14.5 34.5 -131.5 1202.8 1071.3
Black 37 11 3 23 12.5 33.8 -137.8 1174.4 1036.6
Standard All 75 21 10 44 26.0 34.7 -130.3 1186.0 1055.7
White 40 11 7 22 14.5 36.3 -116.9 1202.1 1085.3
Black 35 10 3 22 11.5 32.9 -145.7 1167.6 1021.9
Rapid All 4 1 0 3 1.0 25.0 -212.5 1255.3 1042.8
White 2 0 0 2 0.0 0.0 -425.0 1216.3 791.3
Black 2 1 0 1 1.0 50.0 0.0 1294.3 1294.3
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 1120112320 Noeth, C (Curtis) 3 2.5 2 1 0 83.3 1117.9 283.3 1401.2 View list
2 2120115655 Mugaragumbo, A (Amour) 3 1.0 1 0 2 33.3 1108.5 -141.7 966.8 View list
3 1120104109 Bowers, M (Mpho) 3 0.0 0 0 3 0.0 1148.0 -425.0 723.0 View list
4 1140112260 Pillay, J (Joshua) 2 2.0 2 0 0 100.0 1129.8 425.0 1554.8 View list
5 1120113412 Eapen, E (Ethan) 2 1.5 1 1 0 75.0 1162.5 212.5 1375.0 View list
6 1120109194 Liebenberg, WS (William Stephen) 2 1.5 1 1 0 75.0 1136.1 212.5 1348.6 View list
7 1120119998 Horne, K (Kian Louis) 2 1.0 1 0 1 50.0 1043.4 0.0 1043.4 View list
8 2120108512 Ellis, S (Suane) 2 1.0 1 0 1 50.0 1097.0 0.0 1097.0 View list
9 1120112257 Laeke, K (Kaleb) 2 1.0 1 0 1 50.0 1140.8 0.0 1140.8 View list
10 1120111803 Retief, A (Antonie) 2 1.0 1 0 1 50.0 1136.1 0.0 1136.1 View list
11 1120110078 Pretorius, C (Christiaan) 2 0.5 0 1 1 25.0 1140.8 -212.5 928.3 View list
12 212091698 Chinoruma, K (Kupa) 2 0.0 0 0 2 0.0 1054.3 -425.0 629.3 View list
13 2120108312 Mulholand, E (Emmy) 2 0.0 0 0 2 0.0 1111.0 -425.0 686.0 View list
14 2110105657 Brown, J (Jordan) 1 1.0 1 0 0 100.0 1180.4 425.0 1605.4 View list
15 1120109535 Fernandes, A (Alrichko) 1 1.0 1 0 0 100.0 1013.5 425.0 1438.5 View list
16 2110113087 Erasmus, SL (Samantha Leigh) 1 1.0 1 0 0 100.0 1180.4 425.0 1605.4 View list
17 1130143794 Human, D (Daniel) 1 1.0 1 0 0 100.0 1027.9 425.0 1452.9 View list
18 2120100230 Louw, C (Charle) 1 1.0 1 0 0 100.0 1013.5 425.0 1438.5 View list
19 1130155011 Mathonsi, A (Alan Ntwanano) 1 1.0 1 0 0 100.0 1040.1 425.0 1465.1 View list
20 1120109814 Mohlomi, K (Kamohelo) 1 1.0 1 0 0 100.0 1059.6 425.0 1484.6 View list