Chess South Africa
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Chess South Africa
Van Der Merwe, S (Stefan)
Dob:
2009/05/19 (U16)
Gender:
Male
Chess SA id:
1090105295
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2023/05/20 (365 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
1128.6
Curent Weighted rating
1140.3
Curent Weighted performance
752.5
Current official/published rating (highest between Raw, WR and WP)
1140.3
Current floor (min rating allowed)
733.2
Current highest rating achieved
1233.2
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)
±183.6
Current Raw change used (final)
0.0
Projected new Raw rating
1128.6
Projected new Weighed rating
1138.2
Projected new Weighted performance
752.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1138.2
Projected effective change (new Official - current Official)
-2.1
Projected new highest rating
1233.2
Projected new floor
733.2
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
1113.9
Curent Weighted rating
1128.0
Curent Weighted performance
750.2
Current official/published rating (highest between Raw, WR and WP)
1128.0
Current floor (min rating allowed)
740.0
Current highest rating achieved
1240.0
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)
±187.5
Current Raw change used (final)
0.0
Projected new Raw rating
1113.9
Projected new Weighed rating
1125.5
Projected new Weighted performance
750.2
Projected new official/published rating (highest between new Raw, new WR and new WP)
1125.5
Projected effective change (new Official - current Official)
-2.5
Projected new highest rating
1240.0
Projected new floor
740.0
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
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.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
6
Gauteng Open Arnold Classic 2023 (C)
2023/05/20
2023/05/20
Tshwane (GTP)
Standard
60
0.83
5
4
0.0
1178.8
1174.4
Analysis
5
Ekurhuleni Springs Open 4 March 2023 (D)
2023/03/04
2023/03/04
Ekurhuleni (GE)
Standard
62
0.84
5
4
2.0
1180.6
1176.2
Analysis
4
Ekurhuleni Chess Springs Club Open 2022 (D)
2022/09/03
2022/09/03
Ekurhuleni (GE)
Standard
60
0.83
5
5
1.5
1201.2
1201.8
Analysis
3
2019 Gauteng School League Finals (U11 Open)
2019/08/23
2019/08/23
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1233.2
1240.0
Analysis
2
2018 Gauteng League Final (U9)
2018/08/24
2018/08/24
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1200.0
1200.0
Analysis
1
D5 Primary Schools Teams 2018 (U9)
2018/08/17
2018/08/18
Ekurhuleni (GE)
Standard
60
0.83
6
6
4.0
1200.0
1200.0
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
29
11
2
16
12.0
41.4
-73.3
1191.5
1118.2
White
14
5
1
8
5.5
39.3
-91.1
1186.0
1095.0
Black
15
6
1
8
6.5
43.3
-56.7
1196.6
1139.9
Standard
All
29
11
2
16
12.0
41.4
-73.3
1191.5
1118.2
White
14
5
1
8
5.5
39.3
-91.1
1186.0
1095.0
Black
15
6
1
8
6.5
43.3
-56.7
1196.6
1139.9
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
110093915
Van Der Linde, B (Bennie)
2
2.0
2
0
0
100.0
1200.0
425.0
1625.0
View list
2
110093937
Rudman, W (Wikus)
2
1.0
1
0
1
50.0
1200.0
0.0
1200.0
View list
3
1100105299
Slabbert, A (Alex-Zander)
2
1.0
1
0
1
50.0
1200.0
0.0
1200.0
View list
4
1110118672
Le Roux, R (Roland)
1
1.0
1
0
0
100.0
1201.2
425.0
1626.2
View list
5
1090101015
Jansen Van Rensburg, S (Stefan)
1
1.0
1
0
0
100.0
1233.2
425.0
1658.2
View list
6
1090105691
Ramobola, H (Hope)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
2120139800
Mathebula, N (Nakedi)
1
1.0
1
0
0
100.0
1180.6
425.0
1605.6
View list
8
1130118674
Mafane, B (Bontle)
1
1.0
1
0
0
100.0
1180.6
425.0
1605.6
View list
9
1090105671
Ncube, T (Thabiso Aiden)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
10
109088603
Van Heerden, JPC (John Paterson Carnavo)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
11
109082272
Mazibuko, T (Thembani)
1
0.5
0
1
0
50.0
1233.2
0.0
1233.2
View list
12
1100105296
Palm, R (Ruan)
1
0.5
0
1
0
50.0
1201.2
0.0
1201.2
View list
13
1090105697
Poustie, LM (Liam Marx)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
14
109093912
Ntuli, N (Nkosinathi)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
15
1090105302
Ludick, L (Liam)
1
0.0
0
0
1
0.0
1201.2
-425.0
776.2
View list
16
1050133990
Hogeweg, A (Aidan)
1
0.0
0
0
1
0.0
1178.8
-425.0
753.8
View list
17
1100143726
Elvin, A (Andrew)
1
0.0
0
0
1
0.0
1180.6
-425.0
755.6
View list
18
1090135387
Del Grosso, G (Gianluca Gabriele)
1
0.0
0
0
1
0.0
1201.2
-425.0
776.2
View list
19
210088032
De Vasconcelos, T (Tiaana)
1
0.0
0
0
1
0.0
1233.2
-425.0
808.2
View list
20
1110112163
Chen, Y (Youlin)
1
0.0
0
0
1
0.0
1178.8
-425.0
753.8
View list