Player Page

Van Der Merwe, S (Stefan)
Dob: 2009/05/19 (U16)
Gender: Male
Chess SA id: 1090105295
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2023/05/20 (365 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 rating1128.6
Curent Weighted rating1140.3
Curent Weighted performance752.5
Current official/published rating (highest between Raw, WR and WP)1140.3
Current floor (min rating allowed)733.2
Current highest rating achieved1233.2
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)±183.6
Current Raw change used (final)0.0
Projected new Raw rating1128.6
Projected new Weighed rating1138.2
Projected new Weighted performance752.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1138.2
Projected effective change (new Official - current Official)-2.1
Projected new highest rating1233.2
Projected new floor733.2
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 rating1113.9
Curent Weighted rating1128.0
Curent Weighted performance750.2
Current official/published rating (highest between Raw, WR and WP)1128.0
Current floor (min rating allowed)740.0
Current highest rating achieved1240.0
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)±187.5
Current Raw change used (final)0.0
Projected new Raw rating1113.9
Projected new Weighed rating1125.5
Projected new Weighted performance750.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1125.5
Projected effective change (new Official - current Official)-2.5
Projected new highest rating1240.0
Projected new floor740.0
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 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 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
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Gauteng Open Arnold Classic 2023 (C) 2023/05/20 2023/05/20 Tshwane (GTP) Standard 60 0.83 5 4 0.0 1178.8 1174.4 Analysis
5 Ekurhuleni Springs Open 4 March 2023 (D) 2023/03/04 2023/03/04 Ekurhuleni (GE) Standard 62 0.84 5 4 2.0 1180.6 1176.2 Analysis
4 Ekurhuleni Chess Springs Club Open 2022 (D) 2022/09/03 2022/09/03 Ekurhuleni (GE) Standard 60 0.83 5 5 1.5 1201.2 1201.8 Analysis
3 2019 Gauteng School League Finals (U11 Open) 2019/08/23 2019/08/23 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1233.2 1240.0 Analysis
2 2018 Gauteng League Final (U9) 2018/08/24 2018/08/24 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
1 D5 Primary Schools Teams 2018 (U9) 2018/08/17 2018/08/18 Ekurhuleni (GE) Standard 60 0.83 6 6 4.0 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 29 11 2 16 12.0 41.4 -73.3 1191.5 1118.2
White 14 5 1 8 5.5 39.3 -91.1 1186.0 1095.0
Black 15 6 1 8 6.5 43.3 -56.7 1196.6 1139.9
Standard All 29 11 2 16 12.0 41.4 -73.3 1191.5 1118.2
White 14 5 1 8 5.5 39.3 -91.1 1186.0 1095.0
Black 15 6 1 8 6.5 43.3 -56.7 1196.6 1139.9
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 110093915 Van Der Linde, B (Bennie) 2 2.0 2 0 0 100.0 1200.0 425.0 1625.0 View list
2 110093937 Rudman, W (Wikus) 2 1.0 1 0 1 50.0 1200.0 0.0 1200.0 View list
3 1100105299 Slabbert, A (Alex-Zander) 2 1.0 1 0 1 50.0 1200.0 0.0 1200.0 View list
4 1110118672 Le Roux, R (Roland) 1 1.0 1 0 0 100.0 1201.2 425.0 1626.2 View list
5 1090101015 Jansen Van Rensburg, S (Stefan) 1 1.0 1 0 0 100.0 1233.2 425.0 1658.2 View list
6 1090105691 Ramobola, H (Hope) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 2120139800 Mathebula, N (Nakedi) 1 1.0 1 0 0 100.0 1180.6 425.0 1605.6 View list
8 1130118674 Mafane, B (Bontle) 1 1.0 1 0 0 100.0 1180.6 425.0 1605.6 View list
9 1090105671 Ncube, T (Thabiso Aiden) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 109088603 Van Heerden, JPC (John Paterson Carnavo) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
11 109082272 Mazibuko, T (Thembani) 1 0.5 0 1 0 50.0 1233.2 0.0 1233.2 View list
12 1100105296 Palm, R (Ruan) 1 0.5 0 1 0 50.0 1201.2 0.0 1201.2 View list
13 1090105697 Poustie, LM (Liam Marx) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
14 109093912 Ntuli, N (Nkosinathi) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
15 1090105302 Ludick, L (Liam) 1 0.0 0 0 1 0.0 1201.2 -425.0 776.2 View list
16 1050133990 Hogeweg, A (Aidan) 1 0.0 0 0 1 0.0 1178.8 -425.0 753.8 View list
17 1100143726 Elvin, A (Andrew) 1 0.0 0 0 1 0.0 1180.6 -425.0 755.6 View list
18 1090135387 Del Grosso, G (Gianluca Gabriele) 1 0.0 0 0 1 0.0 1201.2 -425.0 776.2 View list
19 210088032 De Vasconcelos, T (Tiaana) 1 0.0 0 0 1 0.0 1233.2 -425.0 808.2 View list
20 1110112163 Chen, Y (Youlin) 1 0.0 0 0 1 0.0 1178.8 -425.0 753.8 View list