Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Van Zyl, J (Jan)
Dob:
2004/05/20 (Adult)
Gender:
Male
Chess SA id:
104076502
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2022/08/13 (659 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
1139.5
Curent Weighted rating
1139.6
Curent Weighted performance
569.8
Current official/published rating (highest between Raw, WR and WP)
1139.6
Current floor (min rating allowed)
671.0
Current highest rating achieved
1171.0
Current K-factor
40
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)
±180.7
Current Raw change used (final)
0.0
Projected new Raw rating
1139.5
Projected new Weighed rating
1139.5
Projected new Weighted performance
569.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1139.5
Projected effective change (new Official - current Official)
-0.1
Projected new highest rating
1171.0
Projected new floor
671.0
Projected new K-facor
40
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
1147.1
Curent Weighted rating
1147.2
Curent Weighted performance
580.1
Current official/published rating (highest between Raw, WR and WP)
1147.2
Current floor (min rating allowed)
685.9
Current highest rating achieved
1185.9
Current K-factor
40
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)
±178.8
Current Raw change used (final)
0.0
Projected new Raw rating
1147.1
Projected new Weighed rating
1147.1
Projected new Weighted performance
580.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1147.1
Projected effective change (new Official - current Official)
-0.1
Projected new highest rating
1185.9
Projected new floor
685.9
Projected new K-facor
40
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
970.7
Curent Weighted rating
970.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
970.7
Current floor (min rating allowed)
500.0
Current highest rating achieved
970.7
Current K-factor
40
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)
±229.9
Current Raw change used (final)
0.0
Projected new Raw rating
970.7
Projected new Weighed rating
970.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
970.7
Projected effective change (new Official - current Official)
-0.0
Projected new highest rating
970.7
Projected new floor
500.0
Projected new K-facor
40
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
837.7
Curent Weighted rating
836.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
837.7
Current floor (min rating allowed)
500.0
Current highest rating achieved
837.7
Current K-factor
40
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)
±277.8
Current Raw change used (final)
0.0
Projected new Raw rating
837.7
Projected new Weighed rating
837.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
837.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
837.7
Projected new floor
500.0
Projected new K-facor
40
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
7
Ekurhuleni-North Schools Teams 2022 (U18)
2022/08/13
2022/08/13
Ekurhuleni (GE)
Standard
60
0.83
5
4
0.0
1171.0
1185.9
Analysis
6
2019 South African Top Schools Team Championships (U15+U17 Open)
2020/01/10
2020/01/11
4 Knights (4K)
Standard
90
0.94
5
4
1.0
1168.4
1185.5
Analysis
5
2019 Gauteng School League Finals (U15 Open)
2019/08/24
2019/08/24
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1120.3
1131.5
Analysis
4
2018 Gauteng League Final (U15)
2018/08/25
2018/08/25
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
924.3
942.3
Analysis
3
Ekurhuleni North Womens Day Tournament (Male)
2018/08/09
2018/08/09
Ekurhuleni (GE)
Rapid
10
0.29
7
7
4.0
924.3
836.3
Analysis
2
Ekurhuleni North District Schools Final 2018 (U15)
2018/08/04
2018/08/04
Ekurhuleni (GE)
Standard
60
0.83
5
5
5.0
924.3
942.3
Analysis
1
Ekurhuleni North Schools Individuals 2018 (U15 Boys)
2018/05/12
2018/05/12
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
836.3
836.3
Analysis
Game History
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
35
19
1
15
19.5
55.7
48.6
1218.2
1266.8
White
19
10
1
8
10.5
55.3
44.7
1216.9
1261.6
Black
16
9
0
7
9.0
56.3
53.1
1219.9
1273.0
Standard
All
28
15
1
12
15.5
55.4
45.5
1222.9
1268.5
White
16
8
1
7
8.5
53.1
26.6
1221.1
1247.7
Black
12
7
0
5
7.0
58.3
70.8
1225.3
1296.2
Rapid
All
7
4
0
3
4.0
57.1
60.7
1199.5
1260.2
White
3
2
0
1
2.0
66.7
141.7
1194.1
1335.8
Black
4
2
0
2
2.0
50.0
0.0
1203.6
1203.6
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
104069713
Vorster, T (Tyrone)
2
0.0
0
0
2
0.0
880.3
-425.0
455.3
View list
2
1070101240
Boshoff, B (Benje)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
3
203064963
Alex, M (Marilyn)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
4
1040105077
Dimpe, T (Tshepo)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
5
1000101374
Huang, J (Jyh-Shiuan)
1
1.0
1
0
0
100.0
836.3
425.0
1261.3
View list
6
1030105009
Jesus De Pinho, R (Rafael)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
7
204071356
Mpanza, A (Amanda)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
8
203086492
Mashala, ML (Maphula)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
9
1090105084
Magwete, N (Ndinae)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
10
1040102197
Ledwaba, J (Julius)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
11
2040104997
Kgaswane, T (Thato)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
12
1000101376
Mshengu, M (Mxolisi Siyanda)
1
1.0
1
0
0
100.0
836.3
425.0
1261.3
View list
13
1060117225
Odewale, D (Deviine)
1
1.0
1
0
0
100.0
1120.3
425.0
1545.3
View list
14
105081177
Pather, J (Juveshan)
1
1.0
1
0
0
100.0
1120.3
425.0
1545.3
View list
15
1040115286
Schonken, S (Stefan)
1
1.0
1
0
0
100.0
1120.3
425.0
1545.3
View list
16
204066118
Swanepoel, J (Juanne)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
17
105086548
Thebe, RC (Reabetswe)
1
1.0
1
0
0
100.0
1168.4
425.0
1593.4
View list
18
1000101384
Van Niekerk, R (Ryan)
1
1.0
1
0
0
100.0
836.3
425.0
1261.3
View list
19
109089375
Viljoen, H (Henning)
1
1.0
1
0
0
100.0
924.3
425.0
1349.3
View list
20
205082888
Wagener, L (Lamari)
1
1.0
1
0
0
100.0
1120.3
425.0
1545.3
View list