Chess South Africa
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Chess South Africa
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
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1179.2
Curent Weighted rating
1188.9
Curent Weighted performance
1044.7
Current official/published rating (highest between Raw, WR and WP)
1188.9
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
Current K-factor
36
Games played this month
0
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 rating
1179.2
Projected new Weighed rating
1187.8
Projected new Weighted performance
1044.7
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 rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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 rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
Current K-factor
36
Games played this month
0
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 rating
1200.0
Projected new Weighed rating
1200.0
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 rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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 rating
1152.5
Curent Weighted rating
1168.5
Curent Weighted performance
1087.5
Current official/published rating (highest between Raw, WR and WP)
1168.5
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
Current K-factor
36
Games played this month
0
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 rating
1152.5
Projected new Weighed rating
1166.4
Projected new Weighted performance
1087.5
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 rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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 rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
Current K-factor
36
Games played this month
0
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 rating
1200.0
Projected new Weighed rating
1200.0
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 rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
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
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
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
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
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