Player Page

Pretorius, A (Andrei)
Dob: 2009/02/02 (U16)
Gender: Female
Chess SA id: 2090155403
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/03/23 (70 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 rating1329.2
Curent Weighted rating1233.3
Curent Weighted performance1311.7
Current official/published rating (highest between Raw, WR and WP)1329.2
Current floor (min rating allowed)829.2
Current highest rating achieved1329.2
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)±137.9
Current Raw change used (final)0.0
Projected new Raw rating1329.2
Projected new Weighed rating1242.1
Projected new Weighted performance1311.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1329.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1329.2
Projected new floor829.2
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 rating1319.8
Curent Weighted rating1235.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1319.8
Current floor (min rating allowed)819.8
Current highest rating achieved1319.8
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)±139.8
Current Raw change used (final)0.0
Projected new Raw rating1319.8
Projected new Weighed rating1243.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1319.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1319.8
Projected new floor819.8
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 rating1151.4
Curent Weighted rating1171.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1171.9
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)±177.7
Current Raw change used (final)0.0
Projected new Raw rating1151.4
Projected new Weighed rating1169.4
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1169.4
Projected effective change (new Official - current Official)-2.5
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
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 1st Knights Open Tournament 2024 (C) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1227.5 1242.8 Analysis
2 JNW Open - Classic - Crawford 2024 (C) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1227.5 1242.8 Analysis
1 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 4 2.5 1195.2 1208.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
7 1st Knights Open Tournament 2024 (C) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1227.5 1242.8 Analysis
6 JNW Open - Classic - Crawford 2024 (C) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1227.5 1242.8 Analysis
5 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 4 2.5 1195.2 1208.6 Analysis
4 Chess is My Lifestyle 2023 (High School Girls) 2023/12/09 2023/12/09 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 2.0 1206.2 1160.8 Analysis
3 Gauteng Soncini Finals 2023 (Girls) 2023/10/28 2023/10/28 Ekurhuleni (GE) Rapid 20 0.47 5 5 2.0 1208.7 1200.0 Analysis
2 Mzansi Spring Rapid 2023 2023/09/02 2023/09/02 Johannesburg Metro (GJM) Rapid 15 0.39 7 0 0.0 1208.7 1200.0 Analysis
1 Gauteng Schools Individual Finals 2023 (U15 Girls) 2023/05/27 2023/05/27 Ekurhuleni (GE) 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 14 9 1 4 9.5 67.9 151.8 1276.5 1428.3
White 8 6 0 2 6.0 75.0 212.5 1298.9 1511.4
Black 6 3 1 2 3.5 58.3 70.8 1246.7 1317.5
Standard All 14 9 1 4 9.5 67.9 151.8 1276.5 1428.3
White 8 6 0 2 6.0 75.0 212.5 1298.9 1511.4
Black 6 3 1 2 3.5 58.3 70.8 1246.7 1317.5
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 29 16 1 12 16.5 56.9 58.6 1244.1 1302.7
White 16 11 0 5 11.0 68.8 159.4 1264.5 1423.9
Black 13 5 1 7 5.5 42.3 -65.4 1218.9 1153.5
Standard All 19 12 1 6 12.5 65.8 134.2 1248.7 1382.9
White 11 7 0 4 7.0 63.6 115.9 1264.4 1380.4
Black 8 5 1 2 5.5 68.8 159.4 1226.9 1386.3
Rapid All 10 4 0 6 4.0 40.0 -85.0 1235.3 1150.3
White 5 4 0 1 4.0 80.0 255.0 1264.8 1519.8
Black 5 0 0 5 0.0 0.0 -425.0 1205.9 780.9
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 1130301072 Mtshweni, L (Lungelo) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list
2 2110141975 Mlilo, S (Sibongisiwe) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list
3 1100160163 Mitchell, T (Thomas) 1 1.0 1 0 0 100.0 1195.2 425.0 1620.2 View list
4 2090155390 Mashego, J (Jamile) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1100191346 Magwambe, R (Rejoyce) 1 1.0 1 0 0 100.0 1206.2 425.0 1631.2 View list
6 1120103546 Lochner, C (Christiaan) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list
7 1080192078 Kreusch, O (Oscar) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list
8 2090162460 Karuppan, Z (Zebada) 1 1.0 1 0 0 100.0 1208.7 425.0 1633.7 View list
9 2080143463 Jovo, M (Makanaka) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 210091697 Botha, A (Andrea) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list
11 1100191976 Bissett, C (Colin) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list
12 1080111620 Cooper, H (Hayden) 1 1.0 1 0 0 100.0 1195.2 425.0 1620.2 View list
13 1070191347 Obioha, C (Chiwendu) 1 1.0 1 0 0 100.0 1206.2 425.0 1631.2 View list
14 2090112559 Shiba, C (Crestina) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
15 2100141920 Vilakazi, L (Lwandle) 1 1.0 1 0 0 100.0 1208.7 425.0 1633.7 View list
16 1140149124 Wu, O (Oscar) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list
17 1080108607 Coetzee, C (Conlinn) 1 0.5 0 1 0 50.0 1195.2 0.0 1195.2 View list
18 2080143482 Mzizi, A (Ayanda) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
19 1080156325 Mvala, A (Ayanda) 1 0.0 0 0 1 0.0 1227.5 -425.0 802.5 View list
20 2070143464 Kazadi, G (Gracia) 1 0.0 0 0 1 0.0 1206.2 -425.0 781.2 View list