Player Page

Van Der Merwe, R (Ruben)
Dob: 2010/02/23 (U16)
Gender: Male
Chess SA id: 1100119500
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/08/03 (113 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 rating1117.9
Current Weighted rating1121.8
Current Weighted performance989.5
Current official/published rating (highest between Raw, WR and WP)1121.8
Current highest rating achieved1157.5
Current floor (min rating allowed)657.5
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)±186.4
Current Raw change used (final)0.0
Projected new Raw rating1117.9
Projected new Weighed rating1032.9
Projected new Weighted performance989.5
Projected new final Raw rating (if new WP > new Raw)1117.9
Projected new highest rating1157.5
Projected new floor657.5
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1117.9
Projected effective change (new Official - current Official)-3.9
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 rating1114.1
Current Weighted rating1118.9
Current Weighted performance989.5
Current official/published rating (highest between Raw, WR and WP)1118.9
Current highest rating achieved1150.5
Current floor (min rating allowed)650.5
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)±187.4
Current Raw change used (final)0.0
Projected new Raw rating1114.1
Projected new Weighed rating1030.4
Projected new Weighted performance989.5
Projected new final Raw rating (if new WP > new Raw)1114.1
Projected new highest rating1150.5
Projected new floor650.5
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1114.1
Projected effective change (new Official - current Official)-4.8
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 rating1100.8
Current Weighted rating1100.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1100.8
Current highest rating achieved1100.8
Current floor (min rating allowed)600.8
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)±191.0
Current Raw change used (final)0.0
Projected new Raw rating1100.8
Projected new Weighed rating1012.7
Projected new Weighted performance219.7
Projected new final Raw rating (if new WP > new Raw)1100.8
Projected new highest rating1100.8
Projected new floor600.8
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1100.8
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 achieved1200.0
Current floor (min rating allowed)700.0
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 rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
2 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U15B) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1146.8 1150.5 Analysis
1 2024 Tshwane Chess AHS Open Chess Tournament (D1) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1103.6 1094.9 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
27 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U15B) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1146.8 1150.5 Analysis
26 2024 Tshwane Chess AHS Open Chess Tournament (D1) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1103.6 1094.9 Analysis
25 2023 Milos Ristic Open Tournament (D1) 2023/04/27 2023/04/27 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1077.5 1073.8 Analysis
24 2023 Tshwane South School District CLOSED Individual Championships (U13 Open) 2023/04/22 2023/04/22 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1077.5 1073.8 Analysis
23 Silver Lakes Open Chess Tournament (D) 2023/04/15 2023/04/15 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1077.5 1073.8 Analysis
22 2023 Afrikaans Hoër Seunskool Open Chess Tournament (D1) 2023/03/04 2023/03/04 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1065.9 1058.2 Analysis
21 2023 Tshwane Chess Open Registration Tournament (D1) 2023/01/28 2023/01/28 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1063.9 1056.2 Analysis
20 2022 South African Junior Team Chess Championships (U14 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 4 1.0 1072.7 1063.4 Analysis
19 2022 Etienne Lewis (U14 Open) 2022/09/02 2022/09/04 Tshwane (GTP) Standard 90 0.94 7 7 3.0 1016.7 1004.2 Analysis
18 2022 Alekhine Open (D) 2022/08/13 2022/08/14 Tshwane (GTP) Standard 90 0.94 5 5 2.0 997.5 983.8 Analysis
17 D4 Play Offs 2022 (U13) 2022/07/30 2022/07/30 Tshwane (GTP) Standard 60 0.83 5 5 0.0 1050.3 1053.4 Analysis
16 2022 Milos Ristic Open Chess Tournament (D) 2022/05/28 2022/05/28 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1019.4 1022.2 Analysis
15 2022 Mid Gauteng Open (D) 2022/05/07 2022/05/07 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1019.4 1022.2 Analysis
14 D4 Individuals 2022 (U13 Open) 2022/04/23 2022/04/23 Tshwane (GTP) Rapid 30 0.60 7 7 2.0 1031.9 1200.0 Analysis
13 2022 Gauteng Interregion (U12 Open) 2022/02/26 2022/02/26 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1012.6 999.4 Analysis
12 2022 Tshwane Chess Open Registration Tournament (D1) 2022/01/29 2022/01/29 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1004.6 989.4 Analysis
11 2021 Etienne Lewis Closed Trials (U12 Open) 2021/09/24 2021/09/26 Nelson Mandela Bay (ENM) Standard 90 0.94 7 6 1.0 1042.2 1031.0 Analysis
10 2021 Gauteng North Open Tournament (D) 2021/08/28 2021/08/29 Tshwane (GTP) Standard 90 0.94 5 4 0.0 1104.6 1096.6 Analysis
9 2021 Chris Greyling Open Tournament (D) 2021/05/08 2021/05/08 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1027.1 1020.0 Analysis
8 2021 Lubowski Open Tournament (D) 2021/05/01 2021/05/02 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1027.1 1020.0 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 9 4 0 5 4.0 44.4 -47.2 1215.8 1168.5
White 5 2 0 3 2.0 40.0 -85.0 1234.5 1149.5
Black 4 2 0 2 2.0 50.0 0.0 1192.3 1192.3
Standard All 9 4 0 5 4.0 44.4 -47.2 1215.8 1168.5
White 5 2 0 3 2.0 40.0 -85.0 1234.5 1149.5
Black 4 2 0 2 2.0 50.0 0.0 1192.3 1192.3
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 133 44 1 88 44.5 33.5 -140.6 1175.5 1034.9
White 66 19 1 46 19.5 29.5 -173.9 1167.5 993.6
Black 67 25 0 42 25.0 37.3 -107.8 1183.4 1075.5
Standard All 126 42 1 83 42.5 33.7 -138.3 1176.5 1038.2
White 62 19 1 42 19.5 31.5 -157.7 1170.2 1012.5
Black 64 23 0 41 23.0 35.9 -119.5 1182.6 1063.0
Rapid All 7 2 0 5 2.0 28.6 -182.1 1157.1 974.9
White 4 0 0 4 0.0 0.0 -425.0 1124.9 699.9
Black 3 2 0 1 2.0 66.7 141.7 1200.0 1341.7
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 1110114764 Botha, RMJ (Robert) 3 0.0 0 0 3 0.0 1092.4 -425.0 667.4 View list
2 1110108346 Mcphail, M (Matthew) 3 0.0 0 0 3 0.0 1048.9 -425.0 623.9 View list
3 2120105112 Bogaard, A (Anneke) 2 2.0 2 0 0 100.0 1034.3 425.0 1459.3 View list
4 2090134212 Maartens, K (Kirsten) 2 2.0 2 0 0 100.0 1012.3 425.0 1437.3 View list
5 1130130727 Badenhorst, M (Matthew) 2 1.0 1 0 1 50.0 1015.8 0.0 1015.8 View list
6 2100109348 Karsten, CB (Chay Belle) 2 1.0 1 0 1 50.0 1125.8 0.0 1125.8 View list
7 2110134037 Olivier, T (Theana) 2 1.0 1 0 1 50.0 1019.6 0.0 1019.6 View list
8 2100131209 Adamson, A (Amani) 2 0.0 0 0 2 0.0 1000.9 -425.0 575.9 View list
9 2070115594 Grahan, C (Chie-Ann) 2 0.0 0 0 2 0.0 1049.3 -425.0 624.3 View list
10 1100131213 Naicker, H (Hoovasen) 2 0.0 0 0 2 0.0 1073.4 -425.0 648.4 View list
11 1090107165 Oosthuizen, L (Ludrick) 2 0.0 0 0 2 0.0 1055.4 -425.0 630.4 View list
12 2100101007 Bassie, U (Unathi) 1 1.0 1 0 0 100.0 1012.6 425.0 1437.6 View list
13 1120154196 Badenhorst, P (Phillip) 1 1.0 1 0 0 100.0 1077.5 425.0 1502.5 View list
14 1110136634 Botha, L (Louis) 1 1.0 1 0 0 100.0 997.5 425.0 1422.5 View list
15 1100134224 Botha, J (Jayden) 1 1.0 1 0 0 100.0 1077.5 425.0 1502.5 View list
16 211093275 Byliefeldt, M (Mienke) 1 1.0 1 0 0 100.0 1027.1 425.0 1452.1 View list
17 109073377 Claassen, EG (Emileo) 1 1.0 1 0 0 100.0 1016.7 425.0 1441.7 View list
18 1090134032 De Roos, H (Hubert) 1 1.0 1 0 0 100.0 1016.7 425.0 1441.7 View list
19 1110117066 Du Preez, J (Joah) 1 1.0 1 0 0 100.0 1077.5 425.0 1502.5 View list
20 2090107171 Gous, S (Shalane) 1 1.0 1 0 0 100.0 989.5 425.0 1414.5 View list