Player Page

Van Der Merwe, R (Rosco)
Dob: 2015/02/10 (U10)
Gender: Male
Chess SA id: 1150149954
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/02/17 (266 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 rating1168.8
Current Weighted rating1169.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1169.1
Current highest rating achieved1168.8
Current floor (min rating allowed)668.8
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)±173.4
Current Raw change used (final)0.0
Projected new Raw rating1168.8
Projected new Weighed rating1075.4
Projected new Weighted performance524.0
Projected new final Raw rating (if new WP > new Raw)1168.8
Projected new highest rating1168.8
Projected new floor668.8
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1168.8
Projected effective change (new Official - current Official)-0.3
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 rating1160.8
Current Weighted rating1161.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1161.2
Current highest rating achieved1160.8
Current floor (min rating allowed)660.8
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)±175.3
Current Raw change used (final)0.0
Projected new Raw rating1160.8
Projected new Weighed rating1068.1
Projected new Weighted performance524.0
Projected new final Raw rating (if new WP > new Raw)1160.8
Projected new highest rating1160.8
Projected new floor660.8
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1160.8
Projected effective change (new Official - current Official)-0.4
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 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
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
1 George Schools Trials 2 2024 (U9 Boys) 2024/02/17 2024/02/17 Eden District (WEG) Standard 60 0.83 5 0 0.0 1168.8 1160.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 George Schools Trials 2 2024 (U9 Boys) 2024/02/17 2024/02/17 Eden District (WEG) Standard 60 0.83 5 0 0.0 1168.8 1160.8 Analysis
2 George Chess Trials 3 2023 (U9 Boys) 2023/02/25 2023/02/25 Eden District (WEG) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
1 George Chess Trials 2 2023 (U9 Boys) 2023/02/11 2023/02/11 Cape Town (WCT) Standard 60 0.83 5 5 2.0 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 10 4 0 6 4.0 40.0 -85.0 1198.3 1113.3
White 4 3 0 1 3.0 75.0 212.5 1184.8 1397.3
Black 6 1 0 5 1.0 16.7 -283.3 1207.3 924.0
Standard All 10 4 0 6 4.0 40.0 -85.0 1198.3 1113.3
White 4 3 0 1 3.0 75.0 212.5 1184.8 1397.3
Black 6 1 0 5 1.0 16.7 -283.3 1207.3 924.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1140148819 Fourie, N (Nicholis) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 1150149947 Damons, E (Ernest) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
3 1150142294 Reddy, X (Xander) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 1150149950 Opperman, K (Kieran) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1150136957 Van Der Merwe, O (Oliver) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
6 1150148822 Steenberg, R (Regardt) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
7 1140148821 Nel, H (Hanroux Maritz) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
8 1150136953 James, W (William) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
9 1140144672 Brewis, F (Fox) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
10 1140149946 Bond, B (Ben) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list