Player Page

Van Der Merwe, J (John)
Dob: 2009/11/21 (U16)
Gender: Male
Chess SA id: 1090154901
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2023/05/13 (366 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 rating1169.0
Curent Weighted rating1175.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1175.8
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)±173.3
Current Raw change used (final)0.0
Projected new Raw rating1169.0
Projected new Weighed rating1174.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1174.7
Projected effective change (new Official - current Official)-1.1
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 rating1177.7
Curent Weighted rating1182.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1182.6
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)±171.2
Current Raw change used (final)0.0
Projected new Raw rating1177.7
Projected new Weighed rating1181.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1181.8
Projected effective change (new Official - current Official)-0.8
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 rating1180.6
Curent Weighted rating1184.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1184.9
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)±170.5
Current Raw change used (final)0.0
Projected new Raw rating1180.6
Projected new Weighed rating1184.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1184.2
Projected effective change (new Official - current Official)-0.7
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
2 Ekurhuleni North Schools Individual Finals 2023 (U15 Boys) 2023/05/13 2023/05/13 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
1 Benoni Cluster High School League 2023 (U15 Open) 2023/05/06 2023/05/06 Ekurhuleni (GE) Rapid 30 0.60 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 1189.8 1104.8
White 6 2 0 4 2.0 33.3 -141.7 1199.2 1057.6
Black 4 2 0 2 2.0 50.0 0.0 1175.5 1175.5
Standard All 5 2 0 3 2.0 40.0 -85.0 1187.6 1102.6
White 3 1 0 2 1.0 33.3 -141.7 1198.5 1056.8
Black 2 1 0 1 1.0 50.0 0.0 1171.3 1171.3
Rapid All 5 2 0 3 2.0 40.0 -85.0 1191.9 1106.9
White 3 1 0 2 1.0 33.3 -141.7 1200.0 1058.3
Black 2 1 0 1 1.0 50.0 0.0 1179.7 1179.7
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 1080154941 Kooko, T (Tebogo) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 1090154874 Kandawasvika, M (Mukundi) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
3 1090151747 Nasha, W (Wisdom) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 1090154047 Van Der West, J (Joshua) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1090154896 Stonall, L (Luca) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
6 1080144871 Mpendu, S (Sakhile) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
7 1090142733 Machaba, T (Tshimullo) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
8 1090154877 Koorts, L (Layton) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
9 1080137222 Chavula, C (Charles) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
10 1080154864 Bolleurs, J (Jason) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list