Chess South Africa
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Chess South Africa
Weng, Y (Yu Bo (David))
Dob:
2010/01/05 (U16)
Gender:
Male
Chess SA id:
1100117290
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/04/06 (34 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
1698.1
Curent Weighted rating
1624.6
Curent Weighted performance
1666.7
Current official/published rating (highest between Raw, WR and WP)
1698.1
Current floor (min rating allowed)
1198.1
Current highest rating achieved
1698.1
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)
±81.6
Current Raw change used (final)
0.0
Projected new Raw rating
1698.1
Projected new Weighed rating
1634.8
Projected new Weighted performance
1666.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1698.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1698.1
Projected new floor
1198.1
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
1704.8
Curent Weighted rating
1622.6
Curent Weighted performance
1661.4
Current official/published rating (highest between Raw, WR and WP)
1704.8
Current floor (min rating allowed)
1204.8
Current highest rating achieved
1704.8
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)
±80.8
Current Raw change used (final)
0.0
Projected new Raw rating
1704.8
Projected new Weighed rating
1634.1
Projected new Weighted performance
1661.4
Projected new official/published rating (highest between new Raw, new WR and new WP)
1704.8
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1704.8
Projected new floor
1204.8
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
1290.4
Curent Weighted rating
1289.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1290.4
Current floor (min rating allowed)
790.4
Current highest rating achieved
1290.4
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)
±145.8
Current Raw change used (final)
0.0
Projected new Raw rating
1290.4
Projected new Weighed rating
1289.9
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1290.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1290.4
Projected new floor
790.4
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
1289.6
Curent Weighted rating
1267.4
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1289.6
Current floor (min rating allowed)
790.4
Current highest rating achieved
1289.6
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)
±145.9
Current Raw change used (final)
0.0
Projected new Raw rating
1289.6
Projected new Weighed rating
1270.8
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1289.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1289.6
Projected new floor
790.4
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
2024 KSNG CHess Academy Open Tournament (A)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1689.0
1695.6
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U14A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
5.0
1652.2
1658.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
26
2024 KSNG CHess Academy Open Tournament (A)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1689.0
1695.6
Analysis
25
2024 Gauteng Inter-Region Chess Championship (U14A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
5.0
1652.2
1658.4
Analysis
24
Africawide Chess Championship 2023 (Open)
2023/11/03
2023/11/05
Johannesburg Metro (GJM)
Standard
90
0.94
7
7
4.0
1655.1
1666.0
Analysis
23
Chess Power House 2023 (B)
2023/08/19
2023/08/19
Johannesburg Metro (GJM)
Standard
90
0.94
5
4
3.0
1608.0
1603.6
Analysis
22
JMC Closed Aug 2023 (U14)
2023/08/04
2023/08/06
Johannesburg Metro (GJM)
Standard
90
0.94
6
6
6.0
1608.0
1603.6
Analysis
21
JMC - The Higher Ground Restaurant 2nd Blitz Event 2023
2023/07/30
2023/07/30
Johannesburg Metro (GJM)
Blitz
8
0.25
7
7
5.0
1550.0
1221.2
Analysis
20
3rd Knight Riders Junior Open 2023 (U14+U16)
2023/07/29
2023/07/29
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.5
1550.0
1532.6
Analysis
19
2023 Menlo Open Tournament (B)
2023/07/22
2023/07/22
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1550.0
1532.6
Analysis
18
2023 South African Junior Closed Chess Championships (U14 Open)
2023/03/31
2023/04/04
Chess South Africa (CSA)
Standard
120
1.00
9
9
5.0
1543.9
1521.1
Analysis
17
JMC 1 St Peters 2023 (B)
2023/03/18
2023/03/18
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1559.8
1537.1
Analysis
16
2022 South African Junior Wild Card Chess Championships (U14 Open)
2022/12/09
2022/12/12
4 Knights (4K)
Standard
120
1.00
7
7
5.5
1449.1
1417.1
Analysis
15
2022 South Africa Junior Blitz Chess Championships (U14)
2022/12/05
2022/12/05
4 Knights (4K)
Blitz
5
0.18
7
7
4.0
1449.1
1200.0
Analysis
14
2022 South African Junior Team Chess Championships (U14 Open)
2022/12/04
2022/12/08
4 Knights (4K)
Standard
120
1.00
7
7
6.0
1449.1
1417.1
Analysis
13
FNB Chessheroes Anity Bullying 2022 (U14)
2022/11/05
2022/11/05
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1461.3
1430.5
Analysis
12
Chess Molecules Championship 2022 (U13)
2022/09/17
2022/09/17
Johannesburg Metro (GJM)
Rapid
30
0.60
5
5
4.5
1464.7
1243.2
Analysis
11
JMC 3rd Trials 2022 (B)
2022/09/11
2022/09/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1464.7
1459.3
Analysis
10
Mzansi Spring Open 2022 (Advanced)
2022/09/03
2022/09/03
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1464.7
1459.3
Analysis
9
JMC 2nd Trials 2022 (B)
2022/08/27
2022/08/27
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1403.9
1354.9
Analysis
8
UJ Fundraising Tournament 2022 (C)
2022/08/13
2022/08/13
Johannesburg Metro (GJM)
Standard
62
0.84
5
5
3.0
1403.9
1354.9
Analysis
7
JMC Womens Day 2022 (C)
2022/08/06
2022/08/07
Johannesburg Metro (GJM)
Standard
90
0.94
6
6
6.0
1403.9
1354.9
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
10
7
2
1
8.0
80.0
255.0
1558.3
1813.3
White
4
3
0
1
3.0
75.0
212.5
1601.2
1813.7
Black
6
4
2
0
5.0
83.3
283.3
1529.7
1813.0
Standard
All
10
7
2
1
8.0
80.0
255.0
1558.3
1813.3
White
4
3
0
1
3.0
75.0
212.5
1601.2
1813.7
Black
6
4
2
0
5.0
83.3
283.3
1529.7
1813.0
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
144
99
11
34
104.5
72.6
191.8
1366.0
1557.8
White
70
48
4
18
50.0
71.4
182.1
1370.2
1552.4
Black
74
51
7
16
54.5
73.6
201.0
1362.0
1563.0
Standard
All
120
82
10
28
87.0
72.5
191.2
1362.6
1553.8
White
59
40
4
15
42.0
71.2
180.1
1371.8
1551.9
Black
61
42
6
13
45.0
73.8
202.0
1353.7
1555.7
Rapid
All
10
8
1
1
8.5
85.0
297.5
1269.9
1567.4
White
4
3
0
1
3.0
75.0
212.5
1311.1
1523.6
Black
6
5
1
0
5.5
91.7
354.2
1242.4
1596.5
Blitz
All
14
9
0
5
9.0
64.3
121.4
1463.8
1585.2
White
7
5
0
2
5.0
71.4
182.1
1391.0
1573.2
Black
7
4
0
3
4.0
57.1
60.7
1536.6
1597.3
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1090099818
Li, Z (Zhengfei)
4
1.0
1
0
3
25.0
1536.7
-212.5
1324.2
View list
2
109086017
Roetz, K (Kyle)
3
3.0
3
0
0
100.0
1444.4
425.0
1869.4
View list
3
1090105698
Naicker, GC (Gabriel Christian)
3
1.5
1
1
1
50.0
1381.0
0.0
1381.0
View list
4
1090105696
Barradas, K (Keanu)
2
2.0
2
0
0
100.0
1377.3
425.0
1802.3
View list
5
1100144057
Dikane, O (Oageng)
2
2.0
2
0
0
100.0
1496.5
425.0
1921.5
View list
6
1140113413
Eapen, J (Johan)
2
2.0
2
0
0
100.0
1481.8
425.0
1906.8
View list
7
109078830
Johnson, A (Ashar)
2
2.0
2
0
0
100.0
1551.8
425.0
1976.8
View list
8
1110103928
Slabbert, ZN (Zander Nicolaas)
2
2.0
2
0
0
100.0
1601.1
425.0
2026.1
View list
9
108082684
De Vries, MA (Andrio)
2
1.5
1
1
0
75.0
1619.5
212.5
1832.0
View list
10
1090130895
Arokiam, E (Ethan)
2
1.0
1
0
1
50.0
1403.9
0.0
1403.9
View list
11
1100100199
Botha, T (Tyler)
2
1.0
1
0
1
50.0
1449.1
0.0
1449.1
View list
12
111092701
Deysel, K (Kaleb)
2
1.0
1
0
1
50.0
1506.0
0.0
1506.0
View list
13
1100141972
Mallach, M (Matthew)
2
1.0
1
0
1
50.0
1455.2
0.0
1455.2
View list
14
211085191
Naidoo, K (Kajol)
2
1.0
1
0
1
50.0
1534.7
0.0
1534.7
View list
15
1140135557
Thorulsley, K (Kairaav)
2
1.0
1
0
1
50.0
1464.7
0.0
1464.7
View list
16
109069454
Sathish, A (Abinavah)
2
0.0
0
0
2
0.0
1496.5
-425.0
1071.5
View list
17
2120108352
De Swardt, M (Mieke)
1
1.0
1
0
0
100.0
1163.5
425.0
1588.5
View list
18
1090144948
De Abreu, P (Pedro)
1
1.0
1
0
0
100.0
1403.9
425.0
1828.9
View list
19
111092267
D`Alton, E (Ezra)
1
1.0
1
0
0
100.0
1461.3
425.0
1886.3
View list
20
212091698
Chinoruma, K (Kupa)
1
1.0
1
0
0
100.0
1403.9
425.0
1828.9
View list