Player Page

De Klerk, J (Jana)
Dob: 2008/05/19 (U18)
Gender: Female
Chess SA id: 2080149071
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (8 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 rating1090.8
Curent Weighted rating1109.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1109.3
Current floor (min rating allowed)635.6
Current highest rating achieved1135.6
Current K-factor40
Games played this month5
Score (S)3.0
Expected score (We)1.56
Difference (S-We)1.44
Current Raw change (no limits, including tournament time weight)47.8
Current min/max change allowed (with limits)±193.7
Current Raw change used (final)47.8
Projected new Raw rating1138.6
Projected new Weighed rating1109.6
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1138.6
Projected effective change (new Official - current Official)+29.3
Projected new highest rating1138.6
Projected new floor638.6
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 rating1073.2
Curent Weighted rating1092.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1092.9
Current floor (min rating allowed)622.8
Current highest rating achieved1122.8
Current K-factor40
Games played this month5
Score (S)3.0
Expected score (We)1.46
Difference (S-We)1.54
Current Raw change (no limits, including tournament time weight)61.6
Current min/max change allowed (with limits)±198.6
Current Raw change used (final)61.6
Projected new Raw rating1134.8
Projected new Weighed rating1093.9
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1134.8
Projected effective change (new Official - current Official)+41.9
Projected new highest rating1134.8
Projected new floor634.8
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 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)700.0
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 floor700.0
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)700.0
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 floor700.0
Projected new K-facor36
Tournaments
Tournament: 2024 Tshwane South School District CLOSED Individual Championships (U18 Girls)
Start: 2024/05/11  End: 2024/05/11  Host: GTP  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1090.8  Rating gain/loss: 47.8
Type rating: 1073.2  Rating gain/loss: 61.6
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 2024 Tshwane South School District CLOSED Individual Championships (U18 Girls) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1090.8 1073.2 Analysis
1 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 2.0 1079.2 1056.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 2024 Tshwane South School District CLOSED Individual Championships (U18 Girls) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1090.8 1073.2 Analysis
3 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 2.0 1079.2 1056.8 Analysis
2 2023 Gauteng Top Schools (U15 Girls) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 4 0.0 1135.6 1122.8 Analysis
1 Grey College Team Championship 2023 (B) 2023/02/03 2023/02/04 Mangaung (FMB) Standard 60 0.83 5 4 0.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 5 0 5 5.0 50.0 0.0 1237.3 1237.3
White 5 3 0 2 3.0 60.0 85.0 1206.7 1291.7
Black 5 2 0 3 2.0 40.0 -85.0 1267.8 1182.8
Standard All 10 5 0 5 5.0 50.0 0.0 1237.3 1237.3
White 5 3 0 2 3.0 60.0 85.0 1206.7 1291.7
Black 5 2 0 3 2.0 40.0 -85.0 1267.8 1182.8
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 18 5 0 13 5.0 27.8 -188.9 1223.5 1034.6
White 9 3 0 6 3.0 33.3 -141.7 1207.0 1065.3
Black 9 2 0 7 2.0 22.2 -236.1 1239.9 1003.8
Standard All 18 5 0 13 5.0 27.8 -188.9 1223.5 1034.6
White 9 3 0 6 3.0 33.3 -141.7 1207.0 1065.3
Black 9 2 0 7 2.0 22.2 -236.1 1239.9 1003.8
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 1080145455 Coetzer, L (Louis) 1 1.0 1 0 0 100.0 1079.2 425.0 1504.2 View list
2 2100304612 Kruger, Z (Zanika) 1 1.0 1 0 0 100.0 1090.8 425.0 1515.8 View list
3 1090191986 Grobler, E (Eric) 1 1.0 1 0 0 100.0 1079.2 425.0 1504.2 View list
4 2070304613 Matlatla, T (Thato) 1 1.0 1 0 0 100.0 1090.8 425.0 1515.8 View list
5 207053925 Visser, A (Anecia) 1 1.0 1 0 0 100.0 1090.8 425.0 1515.8 View list
6 1090143371 Smith, A (Andre) 1 0.0 0 0 1 0.0 1079.2 -425.0 654.2 View list
7 208082677 Radia, D (Diya) 1 0.0 0 0 1 0.0 1090.8 -425.0 665.8 View list
8 1090149106 Pheiffer, L (Leano) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
9 2070149105 Phalole, R (Reatile) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
10 1080142230 Oberholster, G (Guilliaume Albertus J) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
11 2100161019 Ndlovu, T (Tyiselani) 1 0.0 0 0 1 0.0 1135.6 -425.0 710.6 View list
12 2080161018 Nare, P (Pontsho) 1 0.0 0 0 1 0.0 1135.6 -425.0 710.6 View list
13 2080304614 Msiza, A (Angel) 1 0.0 0 0 1 0.0 1090.8 -425.0 665.8 View list
14 2080144729 Lepati, N (Naledi) 1 0.0 0 0 1 0.0 1135.6 -425.0 710.6 View list
15 106052021 Labuscagne, JC (Josef Cornelius) 1 0.0 0 0 1 0.0 1079.2 -425.0 654.2 View list
16 110091688 Kwak, J (Jaeson) 1 0.0 0 0 1 0.0 1079.2 -425.0 654.2 View list
17 1080149074 Devenish, J (Joshua) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 2080145930 Chihereva, L (Linqleighter) 1 0.0 0 0 1 0.0 1135.6 -425.0 710.6 View list