Chess South Africa
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Chess South Africa
Van Der Merwe, R (Ruan)
Dob:
2005/06/02 (U20)
Gender:
Male
Chess SA id:
105089345
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2023/09/06 (258 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
1349.3
Curent Weighted rating
1330.3
Curent Weighted performance
1008.9
Current official/published rating (highest between Raw, WR and WP)
1349.3
Current floor (min rating allowed)
849.3
Current highest rating achieved
1349.3
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)
±134.0
Current Raw change used (final)
0.0
Projected new Raw rating
1349.3
Projected new Weighed rating
1332.9
Projected new Weighted performance
1008.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1349.3
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1349.3
Projected new floor
849.3
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
1357.7
Curent Weighted rating
1335.2
Curent Weighted performance
1010.0
Current official/published rating (highest between Raw, WR and WP)
1357.7
Current floor (min rating allowed)
857.7
Current highest rating achieved
1357.7
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)
±132.4
Current Raw change used (final)
0.0
Projected new Raw rating
1357.7
Projected new Weighed rating
1338.3
Projected new Weighted performance
1010.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1357.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1357.7
Projected new floor
857.7
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
786.1
Curent Weighted rating
763.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
786.1
Current floor (min rating allowed)
500.0
Current highest rating achieved
786.1
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)
±299.0
Current Raw change used (final)
0.0
Projected new Raw rating
786.1
Projected new Weighed rating
765.5
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
786.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
786.1
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
750.0
Curent Weighted rating
750.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
750.0
Current floor (min rating allowed)
500.0
Current highest rating achieved
750.0
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)
±314.8
Current Raw change used (final)
0.0
Projected new Raw rating
750.0
Projected new Weighed rating
750.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
750.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
750.0
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
23
2023 Tshwane South School District CLOSED League Championship (U17)
2023/07/29
2023/07/29
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1287.1
1283.9
Analysis
22
2023 Centurion Club Championships
2023/07/19
2023/09/06
Tshwane (GTP)
Standard
60
0.83
6
2
1.5
1345.7
1354.5
Analysis
21
Ekurhuleni-North Schools Teams 2022 (U18)
2022/08/13
2022/08/13
Ekurhuleni (GE)
Standard
60
0.83
5
5
1.5
1308.0
1306.2
Analysis
20
Ekurhuleni Chess Chessa Open 2021 (B)
2021/03/27
2021/03/27
Ekurhuleni (GE)
Standard
60
0.83
5
5
2.0
1340.0
1347.2
Analysis
19
Ekurhuleni Chess Kempton Park Open 2020 (B)
2020/11/21
2020/11/21
Ekurhuleni (GE)
Standard
60
0.83
5
5
2.5
1330.1
1335.3
Analysis
18
Boksburg Chess Club Open 2019 (B)
2019/07/13
2019/07/13
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.5
1319.3
1325.2
Analysis
17
2019 Gauteng Secondary Schools Individual Chess Championships (U15 Boys)
2019/05/25
2019/05/25
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1269.7
1264.4
Analysis
16
Ekurhuleni South School Chess 2019 (U15 Boys)
2019/05/11
2019/05/11
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1269.7
1264.4
Analysis
15
Primrose Chess Club Open 2019 (B)
2019/04/13
2019/04/13
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1273.0
1269.4
Analysis
14
South African Junior Team Championships 2018 (U14C)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
7
4.0
1253.2
1248.5
Analysis
13
Inter Region GE vs JHB Metro 2018 (U14B)
2018/10/06
2018/10/06
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1227.5
1217.2
Analysis
12
Ekurhuleni Grand Prix Open 2018 (C)
2018/09/14
2018/09/15
Ekurhuleni (GE)
Standard
60
0.83
6
6
4.0
1234.4
1225.1
Analysis
11
Ekurhuleni Open 2018 (C)
2018/08/18
2018/08/18
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1245.8
1239.5
Analysis
10
Witfield Open 2018 (C)
2018/07/21
2018/07/21
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.5
1249.7
1245.3
Analysis
9
Ekurhuleni Trials 3 2018 (U14)
2018/06/16
2018/06/16
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1211.0
1212.6
Analysis
8
2018 Gauteng Secondary Schools Individual Chess Championships (U13 Boys)
2018/05/25
2018/05/25
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
967.5
968.0
Analysis
7
Ekurhuleni South D6 Individual Finals 2018 (U13 Boys)
2018/05/19
2018/05/19
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
967.5
968.0
Analysis
6
Dalpark Open 2018 (C)
2018/05/04
2018/05/05
Ekurhuleni (GE)
Standard
60
0.83
6
6
4.5
967.5
968.0
Analysis
5
Ekurhuleni Trials 2 2018 (U14)
2018/04/21
2018/04/21
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
879.8
901.6
Analysis
4
Human Rights Day Open 2018 (C)
2018/03/21
2018/03/21
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.5
811.1
824.8
Analysis
1
2
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
116
70
13
33
76.5
65.9
135.6
1093.8
1229.3
White
58
40
6
12
43.0
74.1
205.2
1056.8
1262.0
Black
58
30
7
21
33.5
57.8
65.9
1130.8
1196.7
Standard
All
116
70
13
33
76.5
65.9
135.6
1093.8
1229.3
White
58
40
6
12
43.0
74.1
205.2
1056.8
1262.0
Black
58
30
7
21
33.5
57.8
65.9
1130.8
1196.7
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
206057511
Terblanche, A (Annika)
3
3.0
3
0
0
100.0
987.8
425.0
1412.8
View list
2
105088007
Nash, K (Keagan)
3
1.5
1
1
1
50.0
1008.1
0.0
1008.1
View list
3
105058538
Smit, D (Devon)
3
0.0
0
0
3
0.0
1016.1
-425.0
591.1
View list
4
206077215
Reddy, K (Kemrin)
2
2.0
2
0
0
100.0
814.9
425.0
1239.9
View list
5
105048040
Venter, M (Magnus)
2
2.0
2
0
0
100.0
992.2
425.0
1417.2
View list
6
106050282
Voigt, H (Heinrich)
2
2.0
2
0
0
100.0
1219.3
425.0
1644.3
View list
7
205004971
Cloete, E (Elsje)
2
1.0
1
0
1
50.0
1242.0
0.0
1242.0
View list
8
206091525
Nel, H (Hayley)
2
1.0
1
0
1
50.0
1319.0
0.0
1319.0
View list
9
105060227
Pillay, M (Mikhael)
2
1.0
1
0
1
50.0
1009.9
0.0
1009.9
View list
10
1050096012
Jansen, H (Heindrich)
2
0.5
0
1
1
25.0
845.5
-212.5
633.0
View list
11
105076508
Coetzer, D (Daniel)
2
0.0
0
0
2
0.0
780.5
-425.0
355.5
View list
12
107069535
Boshoma, C (Chifundo)
2
0.0
0
0
2
0.0
858.8
-425.0
433.8
View list
13
105059134
De Swardt, E (Eduan)
2
0.0
0
0
2
0.0
1074.8
-425.0
649.8
View list
14
107081722
Dyason, D (Daniel)
1
1.0
1
0
0
100.0
1287.1
425.0
1712.1
View list
15
1060103467
Do O Faustino, J (Jordan)
1
1.0
1
0
0
100.0
1249.7
425.0
1674.7
View list
16
108088044
Deans, J (Jarred)
1
1.0
1
0
0
100.0
811.1
425.0
1236.1
View list
17
205067320
De Beer, J (Janka)
1
1.0
1
0
0
100.0
811.1
425.0
1236.1
View list
18
107088028
Cass, M (Micheal)
1
1.0
1
0
0
100.0
750.0
425.0
1175.0
View list
19
1070146869
Burger, C (Christiaan Theunis)
1
1.0
1
0
0
100.0
1287.1
425.0
1712.1
View list
20
205069709
Bothma, I (Isabella)
1
1.0
1
0
0
100.0
1227.5
425.0
1652.5
View list