Chess South Africa
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Chess South Africa
Coetzer, R (Ruan)
Dob:
2007/11/14 (U18)
Gender:
Male
Chess SA id:
107093975
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/03/16 (58 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
1214.1
Curent Weighted rating
1207.3
Curent Weighted performance
957.4
Current official/published rating (highest between Raw, WR and WP)
1214.1
Current floor (min rating allowed)
714.1
Current highest rating achieved
1214.1
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)
±162.5
Current Raw change used (final)
0.0
Projected new Raw rating
1214.1
Projected new Weighed rating
1207.9
Projected new Weighted performance
957.4
Projected new official/published rating (highest between new Raw, new WR and new WP)
1214.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1214.1
Projected new floor
714.1
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
1213.2
Curent Weighted rating
1208.3
Curent Weighted performance
953.1
Current official/published rating (highest between Raw, WR and WP)
1213.2
Current floor (min rating allowed)
713.2
Current highest rating achieved
1213.2
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)
±162.7
Current Raw change used (final)
0.0
Projected new Raw rating
1213.2
Projected new Weighed rating
1208.7
Projected new Weighted performance
953.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1213.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1213.2
Projected new floor
713.2
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
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.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
Bojanala Silwerrand's Rating Implosion 2024 (Queens)
2024/03/16
2024/03/16
Bojanala Platina (NBR)
Standard
60
0.83
5
5
1.0
1206.0
1207.4
Analysis
1
Schoemies' Kings & Queens 2024 (Knights)
2024/03/02
2024/03/02
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.5
1206.0
1207.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
7
Bojanala Silwerrand's Rating Implosion 2024 (Queens)
2024/03/16
2024/03/16
Bojanala Platina (NBR)
Standard
60
0.83
5
5
1.0
1206.0
1207.4
Analysis
6
Schoemies' Kings & Queens 2024 (Knights)
2024/03/02
2024/03/02
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.5
1206.0
1207.4
Analysis
5
JNW Club - Trinityhouse Little Falls Open 2020 (D)
2020/03/14
2020/03/14
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1201.8
1205.6
Analysis
4
JNW Club - Trinityhouse Randpark Ridge Open 2020 (D)
2020/02/22
2020/02/22
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1138.7
1126.8
Analysis
3
JNW Chess Club - Muldersdrif 2019 (B)
2019/10/18
2019/10/18
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1154.6
1142.4
Analysis
2
JNW Club - Maragon Open 2019 (D)
2019/08/03
2019/08/03
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1169.5
1164.0
Analysis
1
D2 Schools Individuals 2019 (U13)
2019/05/18
2019/05/18
West Rand (GWR)
Standard
60
0.83
5
4
2.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
10
4
1
5
4.5
45.0
-42.5
1278.7
1236.2
White
6
3
0
3
3.0
50.0
0.0
1339.2
1339.2
Black
4
1
1
2
1.5
37.5
-106.3
1187.9
1081.6
Standard
All
10
4
1
5
4.5
45.0
-42.5
1278.7
1236.2
White
6
3
0
3
3.0
50.0
0.0
1339.2
1339.2
Black
4
1
1
2
1.5
37.5
-106.3
1187.9
1081.6
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
34
18
1
15
18.5
54.4
37.5
1146.3
1183.8
White
20
10
0
10
10.0
50.0
0.0
1120.6
1120.6
Black
14
8
1
5
8.5
60.7
91.1
1183.1
1274.1
Standard
All
34
18
1
15
18.5
54.4
37.5
1146.3
1183.8
White
20
10
0
10
10.0
50.0
0.0
1120.6
1120.6
Black
14
8
1
5
8.5
60.7
91.1
1183.1
1274.1
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
1080300056
Van Wyk, R (Ruan)
2
0.5
0
1
1
25.0
1206.0
-212.5
993.5
View list
2
1040132192
Brummelkamp, G (Gideon)
1
1.0
1
0
0
100.0
1138.7
425.0
1563.7
View list
3
105082260
Botha, M (Marcus)
1
1.0
1
0
0
100.0
1169.5
425.0
1594.5
View list
4
1090105696
Barradas, K (Keanu)
1
1.0
1
0
0
100.0
1169.5
425.0
1594.5
View list
5
1090130895
Arokiam, E (Ethan)
1
1.0
1
0
0
100.0
1201.8
425.0
1626.8
View list
6
1070132193
Danks, S (Stuart)
1
1.0
1
0
0
100.0
1138.7
425.0
1563.7
View list
7
206079860
Dinham, K (Kiara)
1
1.0
1
0
0
100.0
1169.5
425.0
1594.5
View list
8
2120111139
Maharaj, A (Aditi)
1
1.0
1
0
0
100.0
1138.7
425.0
1563.7
View list
9
108082266
Kotze, F (Francois)
1
1.0
1
0
0
100.0
1201.8
425.0
1626.8
View list
10
1090133402
Jewatzchewitz, J (Jaco)
1
1.0
1
0
0
100.0
1201.8
425.0
1626.8
View list
11
2110136768
Monare, O (Oratilwe)
1
1.0
1
0
0
100.0
1206.0
425.0
1631.0
View list
12
1080132199
Monageng, R (Reuben)
1
1.0
1
0
0
100.0
1138.7
425.0
1563.7
View list
13
107067863
Mhaka, ST (Shaun)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
14
1070300042
Metene, R (Remofilwe)
1
1.0
1
0
0
100.0
1206.0
425.0
1631.0
View list
15
1100110075
Mupalala, K (Kenzo)
1
1.0
1
0
0
100.0
1154.6
425.0
1579.6
View list
16
1080152056
Seleke, T (Tlotlang)
1
1.0
1
0
0
100.0
1206.0
425.0
1631.0
View list
17
2060113584
Van Den Heever, L (Liana)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
18
1140162269
Van Der Merwe, J (Josua)
1
1.0
1
0
0
100.0
1206.0
425.0
1631.0
View list
19
210092814
Van Der Sandt, I (Iliana)
1
1.0
1
0
0
100.0
1154.6
425.0
1579.6
View list
20
108069098
Nke, RB (Rebaone)
1
0.0
0
0
1
0.0
1206.0
-425.0
781.0
View list