Player Page

Van Der Merwe, R (Ruan)
Dob: 2005/06/02 (U20)
Gender: Male
Chess SA id: 105089345
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2023/09/06 (258 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 rating1349.3
Curent Weighted rating1330.3
Curent Weighted performance1008.9
Current official/published rating (highest between Raw, WR and WP)1349.3
Current floor (min rating allowed)849.3
Current highest rating achieved1349.3
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)±134.0
Current Raw change used (final)0.0
Projected new Raw rating1349.3
Projected new Weighed rating1332.9
Projected new Weighted performance1008.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1349.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1349.3
Projected new floor849.3
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 rating1357.7
Curent Weighted rating1335.2
Curent Weighted performance1010.0
Current official/published rating (highest between Raw, WR and WP)1357.7
Current floor (min rating allowed)857.7
Current highest rating achieved1357.7
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)±132.4
Current Raw change used (final)0.0
Projected new Raw rating1357.7
Projected new Weighed rating1338.3
Projected new Weighted performance1010.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1357.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1357.7
Projected new floor857.7
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 rating786.1
Curent Weighted rating763.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)786.1
Current floor (min rating allowed)500.0
Current highest rating achieved786.1
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)±299.0
Current Raw change used (final)0.0
Projected new Raw rating786.1
Projected new Weighed rating765.5
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)786.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating786.1
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 rating750.0
Curent Weighted rating750.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)750.0
Current floor (min rating allowed)500.0
Current highest rating achieved750.0
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)±314.8
Current Raw change used (final)0.0
Projected new Raw rating750.0
Projected new Weighed rating750.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)750.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating750.0
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
23 2023 Tshwane South School District CLOSED League Championship (U17) 2023/07/29 2023/07/29 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1287.1 1283.9 Analysis
22 2023 Centurion Club Championships 2023/07/19 2023/09/06 Tshwane (GTP) Standard 60 0.83 6 2 1.5 1345.7 1354.5 Analysis
21 Ekurhuleni-North Schools Teams 2022 (U18) 2022/08/13 2022/08/13 Ekurhuleni (GE) Standard 60 0.83 5 5 1.5 1308.0 1306.2 Analysis
20 Ekurhuleni Chess Chessa Open 2021 (B) 2021/03/27 2021/03/27 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1340.0 1347.2 Analysis
19 Ekurhuleni Chess Kempton Park Open 2020 (B) 2020/11/21 2020/11/21 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1330.1 1335.3 Analysis
18 Boksburg Chess Club Open 2019 (B) 2019/07/13 2019/07/13 Ekurhuleni (GE) Standard 60 0.83 5 5 3.5 1319.3 1325.2 Analysis
17 2019 Gauteng Secondary Schools Individual Chess Championships (U15 Boys) 2019/05/25 2019/05/25 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1269.7 1264.4 Analysis
16 Ekurhuleni South School Chess 2019 (U15 Boys) 2019/05/11 2019/05/11 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1269.7 1264.4 Analysis
15 Primrose Chess Club Open 2019 (B) 2019/04/13 2019/04/13 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1273.0 1269.4 Analysis
14 South African Junior Team Championships 2018 (U14C) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 4.0 1253.2 1248.5 Analysis
13 Inter Region GE vs JHB Metro 2018 (U14B) 2018/10/06 2018/10/06 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1227.5 1217.2 Analysis
12 Ekurhuleni Grand Prix Open 2018 (C) 2018/09/14 2018/09/15 Ekurhuleni (GE) Standard 60 0.83 6 6 4.0 1234.4 1225.1 Analysis
11 Ekurhuleni Open 2018 (C) 2018/08/18 2018/08/18 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1245.8 1239.5 Analysis
10 Witfield Open 2018 (C) 2018/07/21 2018/07/21 Ekurhuleni (GE) Standard 60 0.83 5 5 3.5 1249.7 1245.3 Analysis
9 Ekurhuleni Trials 3 2018 (U14) 2018/06/16 2018/06/16 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1211.0 1212.6 Analysis
8 2018 Gauteng Secondary Schools Individual Chess Championships (U13 Boys) 2018/05/25 2018/05/25 Tshwane (GTP) Standard 60 0.83 5 5 4.0 967.5 968.0 Analysis
7 Ekurhuleni South D6 Individual Finals 2018 (U13 Boys) 2018/05/19 2018/05/19 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 967.5 968.0 Analysis
6 Dalpark Open 2018 (C) 2018/05/04 2018/05/05 Ekurhuleni (GE) Standard 60 0.83 6 6 4.5 967.5 968.0 Analysis
5 Ekurhuleni Trials 2 2018 (U14) 2018/04/21 2018/04/21 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 879.8 901.6 Analysis
4 Human Rights Day Open 2018 (C) 2018/03/21 2018/03/21 Ekurhuleni (GE) Standard 60 0.83 5 5 3.5 811.1 824.8 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 116 70 13 33 76.5 65.9 135.6 1093.8 1229.3
White 58 40 6 12 43.0 74.1 205.2 1056.8 1262.0
Black 58 30 7 21 33.5 57.8 65.9 1130.8 1196.7
Standard All 116 70 13 33 76.5 65.9 135.6 1093.8 1229.3
White 58 40 6 12 43.0 74.1 205.2 1056.8 1262.0
Black 58 30 7 21 33.5 57.8 65.9 1130.8 1196.7
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 206057511 Terblanche, A (Annika) 3 3.0 3 0 0 100.0 987.8 425.0 1412.8 View list
2 105088007 Nash, K (Keagan) 3 1.5 1 1 1 50.0 1008.1 0.0 1008.1 View list
3 105058538 Smit, D (Devon) 3 0.0 0 0 3 0.0 1016.1 -425.0 591.1 View list
4 206077215 Reddy, K (Kemrin) 2 2.0 2 0 0 100.0 814.9 425.0 1239.9 View list
5 105048040 Venter, M (Magnus) 2 2.0 2 0 0 100.0 992.2 425.0 1417.2 View list
6 106050282 Voigt, H (Heinrich) 2 2.0 2 0 0 100.0 1219.3 425.0 1644.3 View list
7 205004971 Cloete, E (Elsje) 2 1.0 1 0 1 50.0 1242.0 0.0 1242.0 View list
8 206091525 Nel, H (Hayley) 2 1.0 1 0 1 50.0 1319.0 0.0 1319.0 View list
9 105060227 Pillay, M (Mikhael) 2 1.0 1 0 1 50.0 1009.9 0.0 1009.9 View list
10 1050096012 Jansen, H (Heindrich) 2 0.5 0 1 1 25.0 845.5 -212.5 633.0 View list
11 105076508 Coetzer, D (Daniel) 2 0.0 0 0 2 0.0 780.5 -425.0 355.5 View list
12 107069535 Boshoma, C (Chifundo) 2 0.0 0 0 2 0.0 858.8 -425.0 433.8 View list
13 105059134 De Swardt, E (Eduan) 2 0.0 0 0 2 0.0 1074.8 -425.0 649.8 View list
14 107081722 Dyason, D (Daniel) 1 1.0 1 0 0 100.0 1287.1 425.0 1712.1 View list
15 1060103467 Do O Faustino, J (Jordan) 1 1.0 1 0 0 100.0 1249.7 425.0 1674.7 View list
16 108088044 Deans, J (Jarred) 1 1.0 1 0 0 100.0 811.1 425.0 1236.1 View list
17 205067320 De Beer, J (Janka) 1 1.0 1 0 0 100.0 811.1 425.0 1236.1 View list
18 107088028 Cass, M (Micheal) 1 1.0 1 0 0 100.0 750.0 425.0 1175.0 View list
19 1070146869 Burger, C (Christiaan Theunis) 1 1.0 1 0 0 100.0 1287.1 425.0 1712.1 View list
20 205069709 Bothma, I (Isabella) 1 1.0 1 0 0 100.0 1227.5 425.0 1652.5 View list