Player Page

Van Der Merwe, A (Aivah Lexi)
Dob: 2015/07/18 (U10)
Gender: Female
Chess SA id: 2150300153
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2024/10/04 (50 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 rating1066.1
Current Weighted rating1160.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1160.1
Current highest rating achieved1178.1
Current floor (min rating allowed)678.1
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)±200.7
Current Raw change used (final)0.0
Projected new Raw rating1066.1
Projected new Weighed rating1066.0
Projected new Weighted performance821.4
Projected new final Raw rating (if new WP > new Raw)1066.1
Projected new highest rating1178.1
Projected new floor678.1
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1066.1
Projected effective change (new Official - current Official)-94.0
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 rating1045.6
Current Weighted rating1153.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1153.4
Current highest rating achieved1174.0
Current floor (min rating allowed)674.0
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)±206.6
Current Raw change used (final)0.0
Projected new Raw rating1045.6
Projected new Weighed rating1059.6
Projected new Weighted performance821.4
Projected new final Raw rating (if new WP > new Raw)1045.6
Projected new highest rating1174.0
Projected new floor674.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1059.6
Projected effective change (new Official - current Official)-93.8
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 achieved0.0
Current floor (min rating allowed)700.0
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)±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 rating0.0
Projected new floor700.0
Projected new K-facor40
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 achieved0.0
Current floor (min rating allowed)700.0
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)±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 rating0.0
Projected new floor700.0
Projected new K-facor40
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
4 Gauteng Top Schools 2024 (U11 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 4 0.0 1115.6 1101.6 Analysis
3 Sedibeng East D7 Teams Trials 2024 (U11) 2024/08/03 2024/08/03 Sedibeng (GSV) Standard 60 0.83 5 4 1.0 1141.2 1130.8 Analysis
2 HS Drie Riviere Chess Open Section 2024 (E) 2024/03/09 2024/03/09 Sedibeng (GSV) Standard 60 0.83 5 5 1.5 1178.1 1174.0 Analysis
1 NG Kerk Vanderbijlpark Suid 2024 (E) 2024/02/24 2024/02/24 Sedibeng (GSV) Standard 61 0.84 5 5 2.0 1200.0 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Gauteng Top Schools 2024 (U11 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 4 0.0 1115.6 1101.6 Analysis
3 Sedibeng East D7 Teams Trials 2024 (U11) 2024/08/03 2024/08/03 Sedibeng (GSV) Standard 60 0.83 5 4 1.0 1141.2 1130.8 Analysis
2 HS Drie Riviere Chess Open Section 2024 (E) 2024/03/09 2024/03/09 Sedibeng (GSV) Standard 60 0.83 5 5 1.5 1178.1 1174.0 Analysis
1 NG Kerk Vanderbijlpark Suid 2024 (E) 2024/02/24 2024/02/24 Sedibeng (GSV) Standard 61 0.84 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 18 4 1 13 4.5 25.0 -212.5 1183.9 971.4
White 9 3 1 5 3.5 38.9 -94.4 1176.0 1081.5
Black 9 1 0 8 1.0 11.1 -330.6 1191.8 861.2
Standard All 18 4 1 13 4.5 25.0 -212.5 1183.9 971.4
White 9 3 1 5 3.5 38.9 -94.4 1176.0 1081.5
Black 9 1 0 8 1.0 11.1 -330.6 1191.8 861.2
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 4 1 13 4.5 25.0 -212.5 1183.9 971.4
White 9 3 1 5 3.5 38.9 -94.4 1176.0 1081.5
Black 9 1 0 8 1.0 11.1 -330.6 1191.8 861.2
Standard All 18 4 1 13 4.5 25.0 -212.5 1183.9 971.4
White 9 3 1 5 3.5 38.9 -94.4 1176.0 1081.5
Black 9 1 0 8 1.0 11.1 -330.6 1191.8 861.2
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 1170300138 Madibana, M (Mohau) 2 2.0 2 0 0 100.0 1189.0 425.0 1614.0 View list
2 2130300137 Madibana, M (Mapula) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
3 1130308439 Ndhlebe, W (Will) 1 1.0 1 0 0 100.0 1141.2 425.0 1566.2 View list
4 1160301575 Strydom, G (Graceson) 1 0.5 0 1 0 50.0 1178.1 0.0 1178.1 View list
5 1130141581 Van Staden, J (Jayden) 1 0.0 0 0 1 0.0 1115.6 -425.0 690.6 View list
6 1130301562 Tlou, L (Lefa Isaac) 1 0.0 0 0 1 0.0 1141.2 -425.0 716.2 View list
7 1140309487 Reid, T (Tyler) 1 0.0 0 0 1 0.0 1115.6 -425.0 690.6 View list
8 2150149142 Radebe, L (Lethabo) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
9 1160300148 Malilani, A (Atinatsa David) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
10 2150301568 Letsedi, B (Boitumelo) 1 0.0 0 0 1 0.0 1178.1 -425.0 753.1 View list
11 1150301567 Kovuzela, M (Musa Nozipho) 1 0.0 0 0 1 0.0 1178.1 -425.0 753.1 View list
12 1140304378 Erasmus, D (Dehan) 1 0.0 0 0 1 0.0 1115.6 -425.0 690.6 View list
13 1140312100 Botha, M (Marius) 1 0.0 0 0 1 0.0 1115.6 -425.0 690.6 View list
14 2140306018 Botha, L (Lee-Ann Elizabeth) 1 0.0 0 0 1 0.0 1141.2 -425.0 716.2 View list
15 1130144759 Barnard, J (Josua) 1 0.0 0 0 1 0.0 1141.2 -425.0 716.2 View list
16 1140301563 Bambo, T (Tumelo Warona) 1 0.0 0 0 1 0.0 1178.1 -425.0 753.1 View list
17 1170158311 Abdul, M (Muhammed Ayaan) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list