Player Page

Van Rooyen, J (John)
Dob: 2009/09/10 (U16)
Gender: Male
Chess SA id: 1090153483
FIDE id:
Region: Mangaung (FMB)
Citizen: RSA
Title(s):
Last active: 2024/03/08 (85 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 rating1179.2
Curent Weighted rating1188.9
Curent Weighted performance1044.7
Current official/published rating (highest between Raw, WR and WP)1188.9
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)±170.8
Current Raw change used (final)0.0
Projected new Raw rating1179.2
Projected new Weighed rating1187.8
Projected new Weighted performance1044.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1187.8
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 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 rating1152.5
Curent Weighted rating1168.5
Curent Weighted performance1087.5
Current official/published rating (highest between Raw, WR and WP)1168.5
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)±177.4
Current Raw change used (final)0.0
Projected new Raw rating1152.5
Projected new Weighed rating1166.4
Projected new Weighted performance1087.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1166.4
Projected effective change (new Official - current Official)-2.2
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.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Bloemfontein Highschool League 2024 (U15B-U19B) 2024/03/08 2024/03/08 Mangaung (FMB) Rapid 15 0.39 5 5 2.0 1183.3 1159.3 Analysis
2 Bloemfontein High School League 16 February 2024 (U15B+U17B) 2024/02/16 2024/02/16 Mangaung (FMB) Rapid 15 0.39 5 5 3.0 1175.7 1128.0 Analysis
1 Bloemfontein High School League Tournament 26 January 2024 (U15B+U17B) 2024/01/26 2024/01/26 Mangaung (FMB) Rapid 15 0.39 5 5 2.0 1186.8 1155.7 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
7 Bloemfontein Highschool League 2024 (U15B-U19B) 2024/03/08 2024/03/08 Mangaung (FMB) Rapid 15 0.39 5 5 2.0 1183.3 1159.3 Analysis
6 Bloemfontein High School League 16 February 2024 (U15B+U17B) 2024/02/16 2024/02/16 Mangaung (FMB) Rapid 15 0.39 5 5 3.0 1175.7 1128.0 Analysis
5 Bloemfontein High School League Tournament 26 January 2024 (U15B+U17B) 2024/01/26 2024/01/26 Mangaung (FMB) Rapid 15 0.39 5 5 2.0 1186.8 1155.7 Analysis
4 Bloemfontein HS League 27 October 2023 (U13-U17) 2023/10/27 2023/10/27 Cape Winelands (WCW) Rapid 15 0.39 5 5 2.0 1195.8 1174.4 Analysis
3 Bloemfontein HS League 13 October 2023 (U17+U19) 2023/10/13 2023/10/13 Mangaung (FMB) Rapid 20 0.47 5 0 0.0 1195.8 1174.4 Analysis
2 Bloemfontein League 25 August 2023 (U17+U19B) 2023/08/25 2023/08/25 Mangaung (FMB) Rapid 15 0.39 5 4 2.0 1199.7 1199.6 Analysis
1 Bloemfontein Highschool League 24 Feb 2023 (U13+U15) 2023/02/24 2023/02/24 Mangaung (FMB) Rapid 17 0.42 5 4 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 15 7 0 8 7.0 46.7 -28.3 1181.0 1152.7
White 8 4 0 4 4.0 50.0 0.0 1200.5 1200.5
Black 7 3 0 4 3.0 42.9 -60.7 1158.8 1098.0
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 15 7 0 8 7.0 46.7 -28.3 1181.0 1152.7
White 8 4 0 4 4.0 50.0 0.0 1200.5 1200.5
Black 7 3 0 4 3.0 42.9 -60.7 1158.8 1098.0
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 28 13 0 15 13.0 46.4 -30.4 1176.9 1146.6
White 15 8 0 7 8.0 53.3 28.3 1169.6 1197.9
Black 13 5 0 8 5.0 38.5 -98.1 1185.4 1087.3
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 28 13 0 15 13.0 46.4 -30.4 1176.9 1146.6
White 15 8 0 7 8.0 53.3 28.3 1169.6 1197.9
Black 13 5 0 8 5.0 38.5 -98.1 1185.4 1087.3
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 1070160761 Leteno, O (Omphile) 2 1.0 1 0 1 50.0 1187.7 0.0 1187.7 View list
2 1100119023 Mokoena, T (Tshepo) 2 0.0 0 0 2 0.0 1197.9 -425.0 772.9 View list
3 2080153474 Cloete, E (Elri) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 1090191954 Kasselman, Z (Zarius) 1 1.0 1 0 0 100.0 1175.7 425.0 1600.7 View list
5 2090160759 Joubert, A (Amorey) 1 1.0 1 0 0 100.0 1183.3 425.0 1608.3 View list
6 1080145468 Haasbroek, N (Niel) 1 1.0 1 0 0 100.0 1199.7 425.0 1624.7 View list
7 2140148594 Matiki, T (Thandeka) 1 1.0 1 0 0 100.0 1186.8 425.0 1611.8 View list
8 2060148579 Madyegasva, M (Mauya) 1 1.0 1 0 0 100.0 1199.7 425.0 1624.7 View list
9 2130148583 Lipheko, G (Gorgeous) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 2140153477 Nthapo, R (Relebohile) 1 1.0 1 0 0 100.0 1195.8 425.0 1620.8 View list
11 1100117640 Nhlapo, N (Nkanyiso) 1 1.0 1 0 0 100.0 1175.7 425.0 1600.7 View list
12 2130148586 Rametsi, O (Oarabile) 1 1.0 1 0 0 100.0 1195.8 425.0 1620.8 View list
13 1130300832 Stokes, D (Daniel) 1 1.0 1 0 0 100.0 1183.3 425.0 1608.3 View list
14 2140153481 Tsime, T (Thulaganyo) 1 1.0 1 0 0 100.0 1186.8 425.0 1611.8 View list
15 1090100920 Lemphane, O (Oratile) 1 0.0 0 0 1 0.0 1183.3 -425.0 758.3 View list
16 1080191956 Moteko, J (Joseph) 1 0.0 0 0 1 0.0 1175.7 -425.0 750.7 View list
17 1080137007 Moteka, J (Joseph) 1 0.0 0 0 1 0.0 1195.8 -425.0 770.8 View list
18 108086945 Geyser, H (Heinrich) 1 0.0 0 0 1 0.0 1199.7 -425.0 774.7 View list
19 1060132538 Els, N (Niel) 1 0.0 0 0 1 0.0 1183.3 -425.0 758.3 View list
20 1090191953 De Beer, D (Damian) 1 0.0 0 0 1 0.0 1175.7 -425.0 750.7 View list