Player Page

Van Der Merwe, W (Willem Johan)
Dob: 2010/01/29 (U16)
Gender: Male
Chess SA id: 1100137452
FIDE id:
Region: Sarah Baartman (ESB)
Citizen: RSA
Title(s):
Last active: 2023/08/25 (268 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 rating1149.2
Curent Weighted rating1146.7
Curent Weighted performance946.9
Current official/published rating (highest between Raw, WR and WP)1149.2
Current floor (min rating allowed)664.6
Current highest rating achieved1164.6
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)±178.3
Current Raw change used (final)0.0
Projected new Raw rating1149.2
Projected new Weighed rating1146.7
Projected new Weighted performance946.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1149.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1164.6
Projected new floor664.6
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 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 rating1123.4
Curent Weighted rating1112.7
Curent Weighted performance984.5
Current official/published rating (highest between Raw, WR and WP)1123.4
Current floor (min rating allowed)625.8
Current highest rating achieved1125.8
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)±184.9
Current Raw change used (final)0.0
Projected new Raw rating1123.4
Projected new Weighed rating1113.9
Projected new Weighted performance984.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1123.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1125.8
Projected new floor625.8
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)625.8
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 floor625.8
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Stulting Sportdag 2023 (Senior) 2023/08/25 2023/08/25 Sarah Baartman (ESB) Rapid 15 0.39 6 6 2.0 1145.8 1125.8 Analysis
5 Paul Sauer Chess Tournament 2023 (Senior) 2023/05/05 2023/05/05 Sarah Baartman (ESB) Rapid 15 0.39 6 5 3.0 1133.8 1066.6 Analysis
4 The Team Battle 2022 (B) 2022/11/19 2022/11/19 Sarah Baartman (ESB) Rapid 20 0.47 6 6 1.0 1164.6 1121.8 Analysis
3 Bloeisel Fees 2022 (Primary School A) 2022/10/29 2022/10/29 Sarah Baartman (ESB) Rapid 15 0.39 7 7 4.0 1140.6 1034.2 Analysis
2 Stulting Sports Day 2022 (Seniors) 2022/08/26 2022/08/26 Sarah Baartman (ESB) Rapid 15 0.39 13 13 2.0 1200.0 1200.0 Analysis
1 SBDCU First Fide Rated Open Tournament Fountains Mall 2022 (B) 2022/02/18 2022/02/19 Sarah Baartman (ESB) Standard 90 0.94 5 0 0.0 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 37 12 0 25 12.0 32.4 -149.3 1247.2 1097.9
White 19 5 0 14 5.0 26.3 -201.3 1258.3 1056.9
Black 18 7 0 11 7.0 38.9 -94.4 1235.6 1141.1
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 37 12 0 25 12.0 32.4 -149.3 1247.2 1097.9
White 19 5 0 14 5.0 26.3 -201.3 1258.3 1056.9
Black 18 7 0 11 7.0 38.9 -94.4 1235.6 1141.1
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 1100140908 Botha, X (Xadrian) 2 2.0 2 0 0 100.0 1172.9 425.0 1597.9 View list
2 1110142443 Dunn, R (Rayden) 2 1.0 1 0 1 50.0 1172.9 0.0 1172.9 View list
3 1090137441 Myburgh, B (Bruce) 2 0.0 0 0 2 0.0 1143.2 -425.0 718.2 View list
4 1100137429 Budaza, L (Ludwe) 2 0.0 0 0 2 0.0 1172.9 -425.0 747.9 View list
5 1120140924 Sacks, F (Francis) 2 0.0 0 0 2 0.0 1137.2 -425.0 712.2 View list
6 1090134449 Salie, R (Riaz) 2 0.0 0 0 2 0.0 1172.9 -425.0 747.9 View list
7 2100142461 Draai, K (Kiara) 1 1.0 1 0 0 100.0 1133.8 425.0 1558.8 View list
8 1120112088 Hickman, H (Handro) 1 1.0 1 0 0 100.0 1140.6 425.0 1565.6 View list
9 1090137436 January, P (Pharrel) 1 1.0 1 0 0 100.0 1140.6 425.0 1565.6 View list
10 1150147783 Ndyova, N (Nikolai Mnqobi) 1 1.0 1 0 0 100.0 1164.6 425.0 1589.6 View list
11 2110142419 Petrus, L (Lenique) 1 1.0 1 0 0 100.0 1133.8 425.0 1558.8 View list
12 1100147616 Pyon, A (Adryan) 1 1.0 1 0 0 100.0 1140.6 425.0 1565.6 View list
13 2100153100 Qaqaqa, L (Liyanda) 1 1.0 1 0 0 100.0 1133.8 425.0 1558.8 View list
14 1100146257 Remmelien, C (Cameron) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
15 1100147621 Van Vuuren, G (Gideon) 1 1.0 1 0 0 100.0 1140.6 425.0 1565.6 View list
16 1120138160 Odufawa, O (Oluthando) 1 0.0 0 0 1 0.0 1164.6 -425.0 739.6 View list
17 1120147782 Ndyova, M (Melumzi Eben) 1 0.0 0 0 1 0.0 1164.6 -425.0 739.6 View list
18 1120137440 Munemo, T (Tanaka) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
19 1100112031 Moolman, A (Anrico) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 1090140918 Mcetywa, K (Khanya) 1 0.0 0 0 1 0.0 1133.8 -425.0 708.8 View list