Chess South Africa
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Chess South Africa
Van Der Westhuizen, D (Donald)
Dob:
2001/05/01 (Adult)
Gender:
Male
Chess SA id:
101039600
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2023/12/08 (156 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
1575.4
Curent Weighted rating
1592.0
Curent Weighted performance
1255.8
Current official/published rating (highest between Raw, WR and WP)
1592.0
Current floor (min rating allowed)
1190.7
Current highest rating achieved
1690.7
Current K-factor
28
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)
±97.1
Current Raw change used (final)
0.0
Projected new Raw rating
1575.4
Projected new Weighed rating
1589.7
Projected new Weighted performance
1255.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1589.7
Projected effective change (new Official - current Official)
-2.2
Projected new highest rating
1690.7
Projected new floor
1190.7
Projected new K-facor
28
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
1566.3
Curent Weighted rating
1586.0
Curent Weighted performance
1234.5
Current official/published rating (highest between Raw, WR and WP)
1586.0
Current floor (min rating allowed)
1195.1
Current highest rating achieved
1695.1
Current K-factor
28
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)
±98.4
Current Raw change used (final)
0.0
Projected new Raw rating
1566.3
Projected new Weighed rating
1583.3
Projected new Weighted performance
1234.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1583.3
Projected effective change (new Official - current Official)
-2.6
Projected new highest rating
1695.1
Projected new floor
1195.1
Projected new K-facor
28
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
1636.3
Curent Weighted rating
1636.3
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1636.3
Current floor (min rating allowed)
1136.3
Current highest rating achieved
1636.3
Current K-factor
28
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)
±89.1
Current Raw change used (final)
0.0
Projected new Raw rating
1636.3
Projected new Weighed rating
1636.3
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1636.3
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1636.3
Projected new floor
1136.3
Projected new K-facor
28
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
1543.5
Curent Weighted rating
1533.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1543.5
Current floor (min rating allowed)
1136.3
Current highest rating achieved
1578.0
Current K-factor
32
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)
±101.6
Current Raw change used (final)
0.0
Projected new Raw rating
1543.5
Projected new Weighed rating
1534.6
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1543.5
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1578.0
Projected new floor
1136.3
Projected new K-facor
32
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
29
2023 USSA Championships (Open)
2023/12/04
2023/12/08
Ethekwini (KED)
Standard
120
1.00
9
9
5.5
1586.0
1582.3
Analysis
28
WP Club League 2023 (A)
2023/07/29
2023/09/09
Cape Town (WCT)
Standard
120
1.00
11
2
1.0
1609.5
1607.5
Analysis
27
WP Club League 2023 (B)
2023/07/29
2023/09/09
Cape Town (WCT)
Standard
120
1.00
11
3
1.5
1609.5
1607.5
Analysis
26
Cape of Good Hope Open 2023 (Championship)
2023/01/28
2023/01/29
Cape Town (WCT)
Standard
70
0.87
6
6
2.0
1612.2
1610.6
Analysis
25
Ussa Chess Championships 2022 (Open)
2022/12/05
2022/12/09
Frances Baard (NCF)
Standard
120
1.00
9
9
6.0
1611.9
1610.3
Analysis
24
2022 Western Province Club League (C)
2022/08/20
2022/10/01
Cape Town (WCT)
Standard
120
1.00
11
5
2.5
1638.8
1637.7
Analysis
23
2019 Inter Region Chess Championships
2020/01/09
2020/01/12
4 Knights (4K)
Standard
120
1.00
7
6
3.0
1658.9
1656.7
Analysis
22
2019 South African Juior Blitz Championship (A)
2020/01/05
2020/01/05
4 Knights (4K)
Blitz
5
0.18
7
7
3.0
1658.9
1564.3
Analysis
21
2019 South African Junior Team Championships (U20A)
2020/01/04
2020/01/08
4 Knights (4K)
Standard
120
1.00
7
6
5.0
1658.9
1656.7
Analysis
20
2019 Gauteng School League Finals (U19 Open)
2019/08/24
2019/08/24
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1644.7
1639.1
Analysis
19
2019 D4 Tshwane South Schools League Team Finals (U19)
2019/07/27
2019/07/27
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1671.4
1671.6
Analysis
18
2019 Gauteng Secondary Schools Individual Chess Championships (U18 Boys)
2019/05/25
2019/05/25
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1690.7
1695.1
Analysis
17
2019 Capablanca Chess Festival (RR C)
2019/04/18
2019/04/22
Tshwane (GTP)
Standard
135
1.00
9
9
5.5
1677.5
1679.1
Analysis
16
2019 South African Junior Closed Chess Championship (U18 Open)
2019/03/17
2019/03/22
Chess South Africa (CSA)
Standard
120
1.00
9
9
4.5
1639.8
1650.8
Analysis
15
2019 D4 Individual Finals (U18 Mixed)
2019/03/09
2019/03/09
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1639.8
1650.8
Analysis
14
2019 TuksChess Open (A)
2019/02/23
2019/02/23
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1621.9
1630.4
Analysis
13
Boksburg Open 2019 (A)
2019/01/19
2019/01/19
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.5
1593.5
1594.8
Analysis
12
South African Junior Blitz 2018 (U18)
2018/12/19
2018/12/19
4 Knights (4K)
Blitz
5
0.18
7
7
4.0
1595.3
1570.4
Analysis
11
South African Junior Team Championships 2018 (U18A)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
7
5.5
1595.3
1598.2
Analysis
10
2018 Gauteng League Final (U19)
2018/08/25
2018/08/25
Tshwane (GTP)
Standard
60
0.83
5
5
5.0
1585.1
1586.4
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
175
94
27
54
107.5
61.4
97.1
1470.2
1567.4
White
85
47
15
23
54.5
64.1
120.0
1459.2
1579.2
Black
90
47
12
31
53.0
58.9
75.6
1480.6
1556.2
Standard
All
154
84
27
43
97.5
63.3
113.1
1457.0
1570.2
White
76
43
15
18
50.5
66.4
139.8
1443.2
1583.0
Black
78
41
12
25
47.0
60.3
87.2
1470.5
1557.7
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
21
10
0
11
10.0
47.6
-20.2
1567.3
1547.1
White
9
4
0
5
4.0
44.4
-47.2
1595.1
1547.9
Black
12
6
0
6
6.0
50.0
0.0
1546.5
1546.5
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
100031149
Prinsloo, MP (Marthinus)
4
2.5
2
1
1
62.5
1619.5
106.3
1725.8
View list
2
101050584
Mazibuko, K (Khanya)
4
0.0
0
0
4
0.0
1629.0
-425.0
1204.0
View list
3
101036703
Subbiah, KJ (Keshiv)
3
2.5
2
1
0
83.3
1640.7
283.3
1924.1
View list
4
104053107
Govender, Y (Yaduvir)
3
1.0
0
2
1
33.3
1619.0
-141.7
1477.3
View list
5
101015487
Khumalo, KB (Keith)
3
0.0
0
0
3
0.0
1613.2
-425.0
1188.2
View list
6
202008804
Engelbrecht, H (Hanri)
2
2.0
2
0
0
100.0
1658.1
425.0
2083.1
View list
7
104064895
Naidoo, T (Tashil)
2
2.0
2
0
0
100.0
1578.7
425.0
2003.7
View list
8
201037041
Swart, S (Sune)
2
2.0
2
0
0
100.0
1615.8
425.0
2040.8
View list
9
102089706
Thom, L (Liam)
2
2.0
2
0
0
100.0
1625.4
425.0
2050.4
View list
10
100003864
Bull, D (Dearan)
2
1.5
1
1
0
75.0
1638.0
212.5
1850.5
View list
11
105050597
Lefyedi, T (Thatego)
2
1.5
1
1
0
75.0
1658.9
212.5
1871.4
View list
12
100076144
Scheepers, R (Reinhardt)
2
1.5
1
1
0
75.0
1561.2
212.5
1773.7
View list
13
101009296
Felix, D (Devon)
2
1.0
1
0
1
50.0
1622.2
0.0
1622.2
View list
14
101000959
Jack, AW (Azile)
2
1.0
1
0
1
50.0
1651.8
0.0
1651.8
View list
15
202020794
Marais, N (Nina)
2
1.0
1
0
1
50.0
1580.4
0.0
1580.4
View list
16
198034674
Sikwati, L (Lizo)
2
1.0
1
0
1
50.0
1649.7
0.0
1649.7
View list
17
1030148162
Tseka, J (Junior)
2
1.0
1
0
1
50.0
1599.0
0.0
1599.0
View list
18
100003808
Bucceri, DR (Draven)
2
1.0
0
2
0
50.0
1599.0
0.0
1599.0
View list
19
102007831
Du Plessis, JAK (Jan)
2
1.0
0
2
0
50.0
1649.3
0.0
1649.3
View list
20
101032434
Rogge, CG (Conrad)
2
0.5
0
1
1
25.0
1655.6
-212.5
1443.1
View list