Chess South Africa
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Chess South Africa
Coetzee, J (Jaco)
Dob:
2005/08/13 (U20)
Gender:
Male
Chess SA id:
105077104
FIDE id:
Region:
Sedibeng (GSV)
Citizen:
RSA
Title(s):
Last active:
2023/05/27 (390 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
Current Raw rating
1366.3
Current Weighted rating
1362.8
Current Weighted performance
1097.8
Current official/published rating (highest between Raw, WR and WP)
1366.3
Current highest rating achieved
1376.4
Current floor (min rating allowed)
876.4
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)
±130.8
Current Raw change used (final)
0.0
Projected new Raw rating
1366.3
Projected new Weighed rating
1253.9
Projected new Weighted performance
1097.8
Projected new final Raw rating (if new WP > new Raw)
1366.3
Projected new highest rating
1376.4
Projected new floor
876.4
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1366.3
Projected effective change (new Official - current Official)
=0.0
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
Current Raw rating
1363.7
Current Weighted rating
1358.7
Current Weighted performance
1097.8
Current official/published rating (highest between Raw, WR and WP)
1363.7
Current highest rating achieved
1372.0
Current floor (min rating allowed)
872.0
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)
±131.3
Current Raw change used (final)
0.0
Projected new Raw rating
1363.7
Projected new Weighed rating
1250.3
Projected new Weighted performance
1097.8
Projected new final Raw rating (if new WP > new Raw)
1363.7
Projected new highest rating
1372.0
Projected new floor
872.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1363.7
Projected effective change (new Official - current Official)
=0.0
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
Current Raw rating
706.8
Current Weighted rating
706.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
706.8
Current highest rating achieved
706.8
Current floor (min rating allowed)
500.0
Current K-factor
40
s
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)
±334.8
Current Raw change used (final)
0.0
Projected new Raw rating
706.8
Projected new Weighed rating
650.3
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
706.8
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
706.8
Projected effective change (new Official - current Official)
=0.0
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
Current Raw rating
819.2
Current Weighted rating
819.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
819.2
Current highest rating achieved
819.2
Current floor (min rating allowed)
500.0
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)
±285.3
Current Raw change used (final)
0.0
Projected new Raw rating
819.2
Projected new Weighed rating
753.7
Projected new Weighted performance
128.7
Projected new final Raw rating (if new WP > new Raw)
819.2
Projected new highest rating
819.2
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
819.2
Projected effective change (new Official - current Official)
=0.0
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
28
Gauteng Schools Individual Finals 2023 (U18 Boys)
2023/05/27
2023/05/27
Ekurhuleni (GE)
Standard
60
0.83
5
5
2.5
1332.2
1319.4
Analysis
27
Gauteng Schools D7 2023 (U18 Boys)
2023/05/20
2023/05/20
Sedibeng (GSV)
Standard
60
0.83
5
5
5.0
1332.2
1319.4
Analysis
26
Heidelberg Open 2023 (B)
2023/02/04
2023/02/04
Sedibeng (GSV)
Standard
60
0.83
5
5
2.5
1361.2
1352.9
Analysis
25
Hoerskool Overvaal 2022 (A+B)
2022/06/11
2022/06/11
Sedibeng (GSV)
Standard
60
0.83
5
4
1.0
1376.4
1372.0
Analysis
24
Heidelberg Open 2020 (B)
2020/02/01
2020/02/01
Sedibeng (GSV)
Standard
60
0.83
5
5
3.0
1367.7
1361.2
Analysis
23
2019 South African Junior Team Championships (U16C)
2020/01/04
2020/01/08
4 Knights (4K)
Standard
120
1.00
7
7
6.0
1327.7
1322.7
Analysis
22
GE vs GSV Inter Regional 2019 (U16B)
2019/10/26
2019/10/26
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1303.5
1297.8
Analysis
21
Sedibeng DF Malherbe Open 2019 (B)
2019/10/12
2019/10/12
Sedibeng (GSV)
Standard
60
0.83
5
5
3.5
1303.5
1297.8
Analysis
20
Eureka Chess Open 2019 (C)
2019/07/27
2019/07/27
Sedibeng (GSV)
Standard
61
0.83
5
4
2.5
1311.9
1307.2
Analysis
19
Overvaal Chess Open 2019 (B)
2019/06/15
2019/06/15
Sedibeng (GSV)
Standard
61
0.83
5
5
4.0
1109.6
1100.8
Analysis
18
Vaal Chess Club Open 2019 (B)
2019/06/01
2019/06/01
Sedibeng (GSV)
Standard
61
0.83
5
5
4.0
1109.6
1100.8
Analysis
17
Dirk de Koster Chess Open 2019 (B)
2019/04/13
2019/04/13
Sedibeng (GSV)
Standard
61
0.83
5
5
3.0
1085.0
1067.2
Analysis
16
2019 Heidelberg Open (B)
2019/02/02
2019/02/02
Sedibeng (GSV)
Standard
120
1.00
5
5
1.5
1130.6
1110.4
Analysis
15
South African Junior Blitz 2018 (U14)
2018/12/19
2018/12/19
4 Knights (4K)
Blitz
5
0.18
7
7
3.5
1086.3
706.8
Analysis
14
South African Junior Team Championships 2018 (U14C)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
7
4.5
1086.3
1066.4
Analysis
13
2018 Interregion Sedibeng vs Ekurhuleni (I)
2018/11/03
2018/11/03
Sedibeng (GSV)
Standard
60
0.83
5
5
1.0
1139.1
1129.2
Analysis
12
2018 Sedibeng Summer Open (F)
2018/10/20
2018/10/20
Sedibeng (GSV)
Standard
60
0.83
5
5
4.0
1053.1
1056.4
Analysis
11
Eureka Chess Open 2018 (B)
2018/09/29
2018/09/29
Sedibeng (GSV)
Standard
61
0.83
5
5
4.0
951.5
945.6
Analysis
10
Dr Pieter Hangelbroek Ope 2018 (C)
2018/09/01
2018/09/01
Sedibeng (GSV)
Standard
61
0.83
5
5
3.5
951.5
945.6
Analysis
9
Broadland`s Knights Chess Open 2018 (B)
2018/06/16
2018/06/16
Sedibeng (GSV)
Standard
61
0.83
5
5
2.0
972.4
975.6
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
148
84
12
52
90.0
60.8
91.9
1054.1
1145.9
White
75
48
3
24
49.5
66.0
136.0
1051.9
1187.9
Black
73
36
9
28
40.5
55.5
46.6
1056.2
1102.8
Standard
All
141
81
11
49
86.5
61.3
96.5
1044.9
1141.3
White
71
47
2
22
48.0
67.6
149.6
1038.3
1188.0
Black
70
34
9
27
38.5
55.0
42.5
1051.5
1094.0
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
7
3
1
3
3.5
50.0
0.0
1239.2
1239.2
White
4
1
1
2
1.5
37.5
-106.3
1293.1
1186.8
Black
3
2
0
1
2.0
66.7
141.7
1167.2
1308.9
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
105085039
Hanekom, D (Dylan)
3
2.0
2
0
1
66.7
796.8
141.7
938.4
View list
2
105052264
Van Der Net, JM (Jayden)
3
1.5
1
1
1
50.0
1048.7
0.0
1048.7
View list
3
102095339
Dube, B (Brandon)
2
2.0
2
0
0
100.0
962.0
425.0
1387.0
View list
4
106053294
Fritz, GPJ (Georg)
2
2.0
2
0
0
100.0
1005.7
425.0
1430.7
View list
5
105085038
Gibbens, JJW (James)
2
2.0
2
0
0
100.0
1221.3
425.0
1646.3
View list
6
105089277
Smeeton, J (John)
2
2.0
2
0
0
100.0
705.6
425.0
1130.6
View list
7
102052261
Rossouw, AW (Andreas)
2
1.5
1
1
0
75.0
1194.3
212.5
1406.8
View list
8
105087158
Lamont, M (Michael)
2
1.0
1
0
1
50.0
862.5
0.0
862.5
View list
9
105052263
Rossouw, R (Rohan)
2
1.0
1
0
1
50.0
1041.0
0.0
1041.0
View list
10
105087685
Van Der Mescht, MJ (Marnus)
2
1.0
1
0
1
50.0
1041.0
0.0
1041.0
View list
11
104087683
Botha, JL (Johannes)
2
1.0
0
2
0
50.0
719.4
0.0
719.4
View list
12
105076508
Coetzer, D (Daniel)
2
0.0
0
0
2
0.0
1061.8
-425.0
636.8
View list
13
106013013
Huisamen, BB (Botha)
2
0.0
0
0
2
0.0
803.5
-425.0
378.5
View list
14
105047605
Terblanche, F (Fred)
2
0.0
0
0
2
0.0
1017.3
-425.0
592.3
View list
15
105057512
Venter, J (Jude)
2
0.0
0
0
2
0.0
922.9
-425.0
497.9
View list
16
205087157
Coetzee, Z (Zahne)
1
1.0
1
0
0
100.0
1053.1
425.0
1478.1
View list
17
207064041
Coetzee, A (Anika)
1
1.0
1
0
0
100.0
1367.7
425.0
1792.7
View list
18
106080078
Chili, N (Nhlanhla)
1
1.0
1
0
0
100.0
993.0
425.0
1418.0
View list
19
207053292
De Villiers, D (Danielle)
1
1.0
1
0
0
100.0
1053.1
425.0
1478.1
View list
20
101093474
Du Toit, C (Conrad)
1
1.0
1
0
0
100.0
993.0
425.0
1418.0
View list