Chess South Africa
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Chess South Africa
Coetsee, D (Dewald)
Dob:
2008/05/21 (U18)
Gender:
Male
Chess SA id:
108064021
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2024/07/13 (14 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
1881.0
Current Weighted rating
1745.6
Current Weighted performance
1864.0
Current official/published rating (highest between Raw, WR and WP)
1881.0
Current highest rating achieved
1881.0
Current floor (min rating allowed)
1381.0
Current K-factor
24
Games played this month
27
Score (S)
16.5
Expected score (We)
20.24
Difference (S-We)
-3.23
Current Raw change (no limits, including tournament time weight)
-77.5
Current min/max change allowed (with limits)
±62.8
Current Raw change used (final)
-77.5
Projected new Raw rating
1803.5
Projected new Weighed rating
1609.0
Projected new Weighted performance
1750.0
Projected new final Raw rating (if new WP > new Raw)
1803.5
Projected new highest rating
1881.0
Projected new floor
1381.0
Projected new K-facor
24
Projected new official/published rating (highest between new Raw, new WR and new WP)
1803.5
Projected effective change (new Official - current Official)
-77.5
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
1882.9
Current Weighted rating
1752.9
Current Weighted performance
1864.0
Current official/published rating (highest between Raw, WR and WP)
1882.9
Current highest rating achieved
1882.9
Current floor (min rating allowed)
1382.9
Current K-factor
24
Games played this month
16
Score (S)
9.5
Expected score (We)
12.70
Difference (S-We)
-3.20
Current Raw change (no limits, including tournament time weight)
-76.8
Current min/max change allowed (with limits)
±62.7
Current Raw change used (final)
-76.8
Projected new Raw rating
1806.1
Projected new Weighed rating
1615.9
Projected new Weighted performance
1806.8
Projected new final Raw rating (if new WP > new Raw)
1806.8
Projected new highest rating
1882.9
Projected new floor
1382.9
Projected new K-facor
24
Projected new official/published rating (highest between new Raw, new WR and new WP)
1806.8
Projected effective change (new Official - current Official)
-76.1
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
1594.9
Current Weighted rating
1435.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1594.9
Current highest rating achieved
1594.9
Current floor (min rating allowed)
1094.9
Current K-factor
32
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)
±94.5
Current Raw change used (final)
0.0
Projected new Raw rating
1594.9
Projected new Weighed rating
1327.0
Projected new Weighted performance
929.6
Projected new final Raw rating (if new WP > new Raw)
1594.9
Projected new highest rating
1594.9
Projected new floor
1094.9
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1594.9
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
1227.6
Current Weighted rating
1219.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1227.6
Current highest rating achieved
1227.6
Current floor (min rating allowed)
727.6
Current K-factor
36
Games played this month
11
Score (S)
7.0
Expected score (We)
4.44
Difference (S-We)
2.56
Current Raw change (no limits, including tournament time weight)
92.2
Current min/max change allowed (with limits)
±159.4
Current Raw change used (final)
92.2
Projected new Raw rating
1319.8
Projected new Weighed rating
1121.9
Projected new Weighted performance
1195.3
Projected new final Raw rating (if new WP > new Raw)
1319.8
Projected new highest rating
1319.8
Projected new floor
819.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1319.8
Projected effective change (new Official - current Official)
+92.2
Tournaments
History
Tournament:
DR KK Gimmies 2024 (A)
Start:
2024/07/13
End:
2024/07/13
Host:
NWP
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
4.0
Main rating:
1881.0
Rating gain/loss:
0.8
Type rating:
1882.9
Rating gain/loss:
-1.0
Analysis
Tournament:
South African Open Chess Championship 2024 (Blitz)
Start:
2024/07/04
End:
2024/07/04
Host:
KED
Type:
Blitz
Time:
5
Time weight:
0.18
Rounds:
11
Games:
11
Score:
7.0
Main rating:
1881.0
Rating gain/loss:
-2.7
Type rating:
1227.6
Rating gain/loss:
92.2
Analysis
Tournament:
South African Open Chess Championship 2024 (A)
Start:
2024/06/29
End:
2024/07/07
Host:
KED
Type:
Standard
Time:
120
Time weight:
1.00
Rounds:
11
Games:
11
Score:
5.5
Main rating:
1881.0
Rating gain/loss:
-62.8
Type rating:
1882.9
Rating gain/loss:
-62.7
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
11
DR KK Gimmies 2024 (A)
2024/07/13
2024/07/13
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
4.0
1881.0
1882.9
Analysis
10
South African Open Chess Championship 2024 (Blitz)
2024/07/04
2024/07/04
Ethekwini (KED)
Blitz
5
0.18
11
11
7.0
1881.0
1227.6
Analysis
9
South African Open Chess Championship 2024 (A)
2024/06/29
2024/07/07
Ethekwini (KED)
Standard
120
1.00
11
11
5.5
1881.0
1882.9
Analysis
8
2024 African Youth Chess Championship
2024/06/16
2024/06/22
South Africa (RSA)
Standard
120
1.00
9
9
5.0
1812.8
1826.5
Analysis
7
2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige)
2024/06/01
2024/06/01
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1812.8
1826.5
Analysis
6
JMC Crawford International Sandton 2024 (A)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1780.9
1807.5
Analysis
5
South African Junior Closed Chess Championship 2024 (U16 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
5.0
1780.9
1807.5
Analysis
4
2024 Lubowski Open Chess Tournament (A)
2024/03/23
2024/03/24
Tshwane (GTP)
Standard
90
0.94
5
5
2.0
1779.6
1812.3
Analysis
3
2024 Chris Greyling Open Chess Tournament (Prestige)
2024/03/16
2024/03/16
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1779.6
1812.3
Analysis
2
2024 Tshwane Chess OPEN Registration Tournament (Prestige)
2024/01/27
2024/01/27
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1715.3
1708.8
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U16A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.5
1715.3
1708.8
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
79
DR KK Gimmies 2024 (A)
2024/07/13
2024/07/13
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
4.0
1881.0
1882.9
Analysis
78
South African Open Chess Championship 2024 (Blitz)
2024/07/04
2024/07/04
Ethekwini (KED)
Blitz
5
0.18
11
11
7.0
1881.0
1227.6
Analysis
77
South African Open Chess Championship 2024 (A)
2024/06/29
2024/07/07
Ethekwini (KED)
Standard
120
1.00
11
11
5.5
1881.0
1882.9
Analysis
76
2024 African Youth Chess Championship
2024/06/16
2024/06/22
South Africa (RSA)
Standard
120
1.00
9
9
5.0
1812.8
1826.5
Analysis
75
2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (Prestige)
2024/06/01
2024/06/01
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1812.8
1826.5
Analysis
74
JMC Crawford International Sandton 2024 (A)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1780.9
1807.5
Analysis
73
South African Junior Closed Chess Championship 2024 (U16 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
5.0
1780.9
1807.5
Analysis
72
2024 Lubowski Open Chess Tournament (A)
2024/03/23
2024/03/24
Tshwane (GTP)
Standard
90
0.94
5
5
2.0
1779.6
1812.3
Analysis
71
2024 Chris Greyling Open Chess Tournament (Prestige)
2024/03/16
2024/03/16
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1779.6
1812.3
Analysis
70
2024 Tshwane Chess OPEN Registration Tournament (Prestige)
2024/01/27
2024/01/27
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1715.3
1708.8
Analysis
69
2024 Gauteng Inter-Region Chess Championship (U16A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.5
1715.3
1708.8
Analysis
68
2023 Centurion Chess Open (A)
2023/09/23
2023/09/23
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1754.3
1751.4
Analysis
67
2023 Etienne Lewis Closed Tournament (U16)
2023/08/25
2023/08/27
Tshwane (GTP)
Standard
90
0.94
7
7
7.0
1690.3
1692.9
Analysis
66
FIDE World Youth U16 Chess Olympiad 2023
2023/08/13
2023/08/18
Netherlands (NED)
Rapid
55
0.80
9
8
4.5
1690.3
1215.8
Analysis
65
DR Kenneth Kaunda Volkies 29 Jul 2023 (A)
2023/07/29
2023/07/29
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
4.5
1674.3
1673.3
Analysis
64
2023 Lubowski Open Tournament (A)
2023/06/24
2023/06/25
Tshwane (GTP)
Standard
90
0.94
5
5
2.0
1701.4
1699.3
Analysis
63
2023 Elize Steenkamp Open Tournament (A)
2023/06/16
2023/06/17
Tshwane (GTP)
Standard
90
0.94
6
6
3.0
1701.4
1699.3
Analysis
62
2023 Milos Ristic Open Tournament (A)
2023/04/27
2023/04/27
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1720.5
1720.0
Analysis
61
2023 South African Junior Closed Chess Championships (U16 Open)
2023/03/31
2023/04/04
Chess South Africa (CSA)
Standard
120
1.00
9
9
5.0
1720.5
1720.0
Analysis
60
2023 Afrikaans Hoër Seunskool Open Chess Tournament (A)
2023/03/04
2023/03/04
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1741.9
1741.6
Analysis
1
2
3
4
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
75
40
8
27
44.0
58.7
73.7
1750.9
1824.6
White
37
24
1
12
24.5
66.2
137.8
1714.5
1852.4
Black
38
16
7
15
19.5
51.3
11.2
1786.4
1797.5
Standard
All
64
33
8
23
37.0
57.8
66.4
1756.8
1823.2
White
31
20
1
10
20.5
66.1
137.1
1722.6
1859.7
Black
33
13
7
13
16.5
50.0
0.0
1789.0
1789.0
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
11
7
0
4
7.0
63.6
115.9
1716.6
1832.5
White
6
4
0
2
4.0
66.7
141.7
1672.7
1814.4
Black
5
3
0
2
3.0
60.0
85.0
1769.2
1854.2
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
474
245
55
174
272.5
57.5
63.7
1440.5
1504.2
White
235
134
25
76
146.5
62.3
104.9
1415.4
1520.3
Black
239
111
30
98
126.0
52.7
23.1
1465.2
1488.4
Standard
All
400
205
53
142
231.5
57.9
66.9
1443.6
1510.6
White
198
112
25
61
124.5
62.9
109.5
1413.4
1522.8
Black
202
93
28
81
107.0
53.0
25.2
1473.3
1498.5
Rapid
All
27
16
1
10
16.5
61.1
94.4
1419.0
1513.4
White
14
8
0
6
8.0
57.1
60.7
1479.8
1540.5
Black
13
8
1
4
8.5
65.4
130.8
1353.5
1484.3
Blitz
All
47
24
1
22
24.5
52.1
18.1
1426.7
1444.8
White
23
14
0
9
14.0
60.9
92.4
1394.1
1486.5
Black
24
10
1
13
10.5
43.8
-53.1
1458.0
1404.9
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
108045082
Koning, L (Lehan)
7
4.5
3
3
1
64.3
1443.4
121.4
1564.8
View list
2
108076196
Potgieter, E (Edward)
7
3.5
3
1
3
50.0
1457.6
0.0
1457.6
View list
3
109086379
Jacobs, CN (Calvin Nicholas)
7
1.5
1
1
5
21.4
1539.7
-242.9
1296.8
View list
4
108082684
De Vries, MA (Andrio)
6
5.0
5
0
1
83.3
1513.8
283.3
1797.1
View list
5
108052034
Du Toit, SJM (Stephanus (Matteo))
5
4.0
4
0
1
80.0
1383.3
255.0
1638.3
View list
6
110086011
Felix, R (Raphael)
5
3.5
3
1
1
70.0
1592.6
170.0
1762.6
View list
7
107086377
Jacobs, TB (Tiaan Benjamin)
5
2.5
2
1
2
50.0
1412.7
0.0
1412.7
View list
8
107046393
Fourie, K (Keanan)
5
2.0
2
0
3
40.0
1347.3
-85.0
1262.3
View list
9
109069454
Sathish, A (Abinavah)
5
2.0
1
2
2
40.0
1504.3
-85.0
1419.3
View list
10
184019054
Mabusela, JM (Johannes)
5
0.0
0
0
5
0.0
1717.3
-425.0
1292.3
View list
11
108079781
Soojay, J (Jorah)
5
0.0
0
0
5
0.0
1518.4
-425.0
1093.4
View list
12
106060952
Viljoen, J (Jaden)
4
3.0
3
0
1
75.0
1302.3
212.5
1514.8
View list
13
107050552
Van Der Westhuizen, F (Frederik)
4
3.0
2
2
0
75.0
1357.2
212.5
1569.7
View list
14
108064849
Ziegenhagen, V (Vian Luke)
4
2.0
2
0
2
50.0
1440.2
0.0
1440.2
View list
15
109083783
Kushar, T (Tristan)
3
3.0
3
0
0
100.0
1444.4
425.0
1869.4
View list
16
108086541
Louw, R (Raynor)
3
3.0
3
0
0
100.0
1607.0
425.0
2032.0
View list
17
108057851
Malan, H (Henco)
3
2.5
2
1
0
83.3
1242.2
283.3
1525.5
View list
18
1070104078
Price, DR (Daelen)
3
2.5
2
1
0
83.3
1650.6
283.3
1933.9
View list
19
105090318
Shuping, O (Omphile)
3
2.5
2
1
0
83.3
1548.6
283.3
1831.9
View list
20
204047328
Fourie, EM (Elzette)
3
2.0
2
0
1
66.7
1533.9
141.7
1675.6
View list