Player Page

Van Niekerk, LA (Lee Ann)
Dob: 2006/06/14 (U20)
Gender: Female
Chess SA id: 206088003
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2023/05/27 (342 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 rating1277.4
Curent Weighted rating1279.8
Curent Weighted performance756.0
Current official/published rating (highest between Raw, WR and WP)1279.8
Current floor (min rating allowed)819.5
Current highest rating achieved1319.5
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)±148.5
Current Raw change used (final)0.0
Projected new Raw rating1277.4
Projected new Weighed rating1279.4
Projected new Weighted performance756.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1279.4
Projected effective change (new Official - current Official)-0.4
Projected new highest rating1319.5
Projected new floor819.5
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 rating1268.3
Curent Weighted rating1271.3
Curent Weighted performance750.2
Current official/published rating (highest between Raw, WR and WP)1271.3
Current floor (min rating allowed)815.5
Current highest rating achieved1315.5
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)±150.4
Current Raw change used (final)0.0
Projected new Raw rating1268.3
Projected new Weighed rating1270.8
Projected new Weighted performance750.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1270.8
Projected effective change (new Official - current Official)-0.5
Projected new highest rating1315.5
Projected new floor815.5
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 rating744.4
Curent Weighted rating744.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)744.4
Current floor (min rating allowed)500.0
Current highest rating achieved744.4
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)±317.3
Current Raw change used (final)0.0
Projected new Raw rating744.4
Projected new Weighed rating744.4
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)744.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating744.4
Projected new floor500.0
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 rating607.2
Curent Weighted rating607.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)607.2
Current floor (min rating allowed)500.0
Current highest rating achieved607.2
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)±385.9
Current Raw change used (final)0.0
Projected new Raw rating607.2
Projected new Weighed rating607.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)607.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating607.2
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
32 Gauteng Schools Individual Finals 2023 (U18 Girls) 2023/05/27 2023/05/27 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1288.5 1282.0 Analysis
31 Alberton Chess Club Open 2020 (Ladies+Girls) 2020/02/22 2020/02/22 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1272.7 1265.1 Analysis
30 2019 Wild Card Chess Championship (U14 Girls) 2020/01/09 2020/01/12 4 Knights (4K) Standard 120 1.00 7 7 4.0 1319.5 1315.5 Analysis
29 2019 South African Junior Team Championships (U14B Girls) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 6 3.0 1319.5 1315.5 Analysis
28 Ekurhuleni Grand Prix 2019 (Girls Juniors) 2019/09/14 2019/09/14 Ekurhuleni (GE) Standard 60 0.83 5 5 3.5 1311.7 1307.9 Analysis
27 Springs Open 2019 (C) 2019/08/31 2019/08/31 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1218.7 1212.9 Analysis
26 2019 Gauteng School League Finals (U13 Girls) 2019/08/23 2019/08/23 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1218.7 1212.9 Analysis
25 Boksburg Chess Club Open 2019 (C) 2019/07/13 2019/07/13 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1081.5 1076.3 Analysis
24 2019 Gauteng Primary Schools Individual Chess Championships (U13 Girls) 2019/05/25 2019/05/25 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1025.5 1017.8 Analysis
23 Ekurhuleni Trials 2 2019 (U14) 2019/04/27 2019/04/27 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1015.2 1007.0 Analysis
22 Ekurhuleni Trials 1 2019 (U14) 2019/03/09 2019/03/09 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1011.2 1003.0 Analysis
21 Springs Chess Club Open 2019 (C) 2019/02/09 2019/02/09 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 962.7 942.6 Analysis
20 2018 Wild Card Chess Championships (U14 Girls) 2018/12/21 2018/12/24 4 Knights (4K) Standard 120 1.00 7 7 2.0 1142.6 1091.8 Analysis
19 South African Junior Blitz 2018 (U14) 2018/12/19 2018/12/19 4 Knights (4K) Blitz 5 0.18 7 7 2.0 1142.6 585.6 Analysis
18 South African Junior Team Championships 2018 (U14B Girls) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 6 2.0 1142.6 1091.8 Analysis
17 Inter Region GE vs JHB Metro 2018 (U14 Swiss) 2018/10/06 2018/10/06 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1185.8 1144.6 Analysis
16 Springs Chess Club Rapid 2018 2018/09/22 2018/09/22 Ekurhuleni (GE) Rapid 20 0.47 6 6 4.0 1141.5 585.6 Analysis
15 2018 Gauteng League Final (U13 Girls) 2018/08/24 2018/08/24 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1083.3 1079.4 Analysis
14 D5 Primary Schools Teams 2018 (U13) 2018/08/17 2018/08/18 Ekurhuleni (GE) Standard 60 0.83 6 5 4.0 1083.3 1079.4 Analysis
13 Witfield Open 2018 (C) 2018/07/21 2018/07/21 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1065.4 1055.0 Analysis
12
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 175 90 5 80 92.5 52.9 24.3 1034.7 1059.0
White 88 53 1 34 53.5 60.8 91.8 1030.5 1122.3
Black 87 37 4 46 39.0 44.8 -44.0 1038.9 994.9
Standard All 162 84 5 73 86.5 53.4 28.9 1022.8 1051.6
White 82 52 1 29 52.5 64.0 119.2 1019.3 1138.5
Black 80 32 4 44 34.0 42.5 -63.8 1026.4 962.7
Rapid All 6 4 0 2 4.0 66.7 141.7 1246.3 1387.9
White 3 1 0 2 1.0 33.3 -141.7 1292.5 1150.8
Black 3 3 0 0 3.0 100.0 425.0 1200.0 1625.0
Blitz All 7 2 0 5 2.0 28.6 -182.1 1128.8 946.6
White 3 0 0 3 0.0 0.0 -425.0 1077.3 652.3
Black 4 2 0 2 2.0 50.0 0.0 1167.4 1167.4
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 206088651 Bothma, L (Liandri) 4 3.0 3 0 1 75.0 1115.0 212.5 1327.5 View list
2 1060096801 Greyling, D (Duncan) 4 1.0 1 0 3 25.0 877.8 -212.5 665.3 View list
3 206091525 Nel, H (Hayley) 4 1.0 1 0 3 25.0 852.1 -212.5 639.6 View list
4 206045741 Steyn, Z (Zurika) 3 2.0 2 0 1 66.7 730.4 141.7 872.1 View list
5 2070102034 Rossouw, A (Alicia) 3 1.0 1 0 2 33.3 1218.9 -141.7 1077.2 View list
6 206071040 Mabaso, F (Felicity) 3 0.0 0 0 3 0.0 1015.7 -425.0 590.7 View list
7 208088664 Bosman, E (Elri) 2 2.0 2 0 0 100.0 718.8 425.0 1143.8 View list
8 107088030 Lusi, L (Lunathi) 2 2.0 2 0 0 100.0 849.0 425.0 1274.0 View list
9 106066143 Waring, G (Gabriel) 2 1.5 1 1 0 75.0 1125.6 212.5 1338.1 View list
10 207064041 Coetzee, A (Anika) 2 1.0 1 0 1 50.0 952.5 0.0 952.5 View list
11 106076510 Attwell, R (Rowan) 2 1.0 1 0 1 50.0 833.5 0.0 833.5 View list
12 206077215 Reddy, K (Kemrin) 2 1.0 1 0 1 50.0 1148.2 0.0 1148.2 View list
13 106086008 Swart, Z (Zander) 2 1.0 1 0 1 50.0 947.8 0.0 947.8 View list
14 207076729 West, M (Megan) 2 1.0 1 0 1 50.0 585.6 0.0 585.6 View list
15 206001830 Bent, C (Cierra) 2 0.0 0 0 2 0.0 864.1 -425.0 439.1 View list
16 205044777 Brink, EN (Enya) 2 0.0 0 0 2 0.0 952.2 -425.0 527.2 View list
17 107056316 Agre, AS (Atharv) 2 0.0 0 0 2 0.0 1046.3 -425.0 621.3 View list
18 206069537 Edeani, C (Chidinma) 2 0.0 0 0 2 0.0 1231.0 -425.0 806.0 View list
19 206050956 Pelser, J (Jean-Marie) 2 0.0 0 0 2 0.0 805.5 -425.0 380.5 View list
20 1060105078 Claven, R (Ryan Daniel) 1 1.0 1 0 0 100.0 1015.2 425.0 1440.2 View list