Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Chang, S (Samuel)
Dob:
2010/10/20 (U16)
Gender:
Male
Chess SA id:
110088674
FIDE id:
Region:
Buffalo City (EBC)
Citizen:
RSA
Title(s):
Last active:
2024/02/24 (56 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
1529.2
Curent Weighted rating
1531.1
Curent Weighted performance
1328.6
Current official/published rating (highest between Raw, WR and WP)
1531.1
Current floor (min rating allowed)
1116.8
Current highest rating achieved
1616.8
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)
±103.7
Current Raw change used (final)
0.0
Projected new Raw rating
1529.2
Projected new Weighed rating
1532.9
Projected new Weighted performance
1328.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1532.9
Projected effective change (new Official - current Official)
+1.7
Projected new highest rating
1616.8
Projected new floor
1116.8
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
1526.0
Curent Weighted rating
1522.1
Curent Weighted performance
1378.0
Current official/published rating (highest between Raw, WR and WP)
1526.0
Current floor (min rating allowed)
1117.1
Current highest rating achieved
1617.1
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)
±104.2
Current Raw change used (final)
0.0
Projected new Raw rating
1526.0
Projected new Weighed rating
1524.4
Projected new Weighted performance
1378.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1526.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1617.1
Projected new floor
1117.1
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
1249.0
Curent Weighted rating
1180.6
Curent Weighted performance
1020.5
Current official/published rating (highest between Raw, WR and WP)
1249.0
Current floor (min rating allowed)
749.0
Current highest rating achieved
1249.0
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)
±154.6
Current Raw change used (final)
0.0
Projected new Raw rating
1249.0
Projected new Weighed rating
1187.6
Projected new Weighted performance
1020.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1249.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1249.0
Projected new floor
749.0
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
1257.6
Curent Weighted rating
971.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1257.6
Current floor (min rating allowed)
749.0
Current highest rating achieved
1257.6
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)
±152.8
Current Raw change used (final)
0.0
Projected new Raw rating
1257.6
Projected new Weighed rating
998.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1257.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1257.6
Projected new floor
749.0
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
Grey College Team Championship 2024 (A)
2024/02/23
2024/02/24
Mangaung (FMB)
Standard
60
0.83
5
5
2.5
1543.6
1545.9
Analysis
1
Chess Vikings VP-Mall Blitz 2024 (A)
2024/01/27
2024/01/27
Buffalo City (EBC)
Blitz
8
0.25
9
9
4.0
1554.2
1226.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
78
Grey College Team Championship 2024 (A)
2024/02/23
2024/02/24
Mangaung (FMB)
Standard
60
0.83
5
5
2.5
1543.6
1545.9
Analysis
77
Chess Vikings VP-Mall Blitz 2024 (A)
2024/01/27
2024/01/27
Buffalo City (EBC)
Blitz
8
0.25
9
9
4.0
1554.2
1226.6
Analysis
76
Chess Vikings Exam Rapid 2023 (A)
2023/11/04
2023/11/04
Buffalo City (EBC)
Rapid
20
0.47
7
6
2.5
1556.8
1144.0
Analysis
75
4th BC HS Trials 2023 (U18A-Adult)
2023/08/26
2023/08/26
Cape Winelands (WCW)
Standard
60
0.83
5
5
3.0
1576.3
1568.9
Analysis
74
2023 SA Schools Winter Games (U15 Open)
2023/07/04
2023/07/06
West Rand (GWR)
Standard
65
0.85
7
7
3.5
1616.8
1617.1
Analysis
73
Youth Day Chess Festival 2023 (B)
2023/06/24
2023/06/24
Buffalo City (EBC)
Standard
90
0.94
5
5
5.0
1481.8
1471.3
Analysis
72
2023 EC Schools Provincial Winter Games (U15 Boys)
2023/06/02
2023/06/03
Buffalo City (EBC)
Standard
60
0.83
6
6
5.0
1481.8
1471.3
Analysis
71
2023 BCM Schools Winter Games District Championships (U15 Boys)
2023/05/20
2023/05/20
Buffalo City (EBC)
Standard
60
0.83
5
5
3.5
1457.6
1433.9
Analysis
70
EL Schools Winter Trials 2023 (U15 Boys)
2023/05/13
2023/05/13
Buffalo City (EBC)
Standard
60
0.83
5
5
4.0
1457.6
1433.9
Analysis
69
BC Chess Trials 1 of 5 2023 (Prestige)
2023/04/29
2023/04/29
Buffalo City (EBC)
Standard
60
0.83
5
4
0.0
1494.0
1473.6
Analysis
68
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
4.5
1494.0
1473.6
Analysis
67
3rd Vikings Champs 2023 (Prestige)
2023/03/25
2023/03/25
Buffalo City (EBC)
Standard
60
0.83
5
5
2.5
1501.2
1480.0
Analysis
66
2nd Master Vikings 2023
2023/02/23
2023/02/23
Buffalo City (EBC)
Standard
60
0.83
5
5
2.0
1536.8
1524.5
Analysis
65
Master Vikings 2023
2023/02/11
2023/02/11
Buffalo City (EBC)
Standard
60
0.83
5
5
2.0
1536.8
1524.5
Analysis
64
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
6.0
1443.7
1428.5
Analysis
63
2022 South African Junior Team Chess Championships (U14 Open)
2022/12/04
2022/12/08
4 Knights (4K)
Standard
120
1.00
7
7
4.0
1443.7
1428.5
Analysis
62
Slum Knights 5th 2022 (Open)
2022/10/22
2022/10/22
Buffalo City (EBC)
Standard
60
0.83
5
5
3.0
1436.3
1419.2
Analysis
61
Slum Knights 2022 (A)
2022/08/06
2022/08/06
Buffalo City (EBC)
Rapid
35
0.66
5
5
3.5
1424.7
1106.0
Analysis
60
BC Chess Trials 5 of 5 2022 (A)
2022/06/11
2022/06/11
Buffalo City (EBC)
Rapid
12
0.33
10
10
5.0
1439.4
1110.8
Analysis
59
BC Chess 4th Border Trials 2022 (A)
2022/05/21
2022/05/21
Buffalo City (EBC)
Rapid
12
0.33
10
10
6.0
1428.6
1037.6
Analysis
1
2
3
4
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
14
6
1
7
6.5
46.4
-30.4
1450.0
1419.7
White
7
2
1
4
2.5
35.7
-121.4
1464.0
1342.6
Black
7
4
0
3
4.0
57.1
60.7
1436.0
1496.8
Standard
All
5
2
1
2
2.5
50.0
0.0
1429.4
1429.4
White
2
1
1
0
1.5
75.0
212.5
1355.8
1568.3
Black
3
1
0
2
1.0
33.3
-141.7
1478.4
1336.7
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
9
4
0
5
4.0
44.4
-47.2
1461.5
1414.3
White
5
1
0
4
1.0
20.0
-255.0
1507.3
1252.3
Black
4
3
0
1
3.0
75.0
212.5
1404.3
1616.8
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
463
243
21
199
253.5
54.8
40.4
1211.6
1252.0
White
228
119
10
99
124.0
54.4
37.3
1211.0
1248.3
Black
235
124
11
100
129.5
55.1
43.4
1212.2
1255.6
Standard
All
368
201
17
150
209.5
56.9
58.9
1185.5
1244.4
White
180
97
8
75
101.0
56.1
51.9
1185.9
1237.9
Black
188
104
9
75
108.5
57.7
65.6
1185.1
1250.6
Rapid
All
70
30
4
36
32.0
45.7
-36.4
1299.4
1263.0
White
35
16
2
17
17.0
48.6
-12.1
1287.1
1275.0
Black
35
14
2
19
15.0
42.9
-60.7
1311.7
1251.0
Blitz
All
25
12
0
13
12.0
48.0
-17.0
1350.3
1333.3
White
13
6
0
7
6.0
46.2
-32.7
1353.6
1320.9
Black
12
6
0
6
6.0
50.0
0.0
1346.6
1346.6
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1070104009
Sibanda, T (Takudzwa)
11
2.0
2
0
9
18.2
1325.6
-270.5
1055.1
View list
2
108088680
Pearson, E (Ethan)
9
4.5
4
1
4
50.0
1369.2
0.0
1369.2
View list
3
1070099423
Lin, C (Chenyi)
9
0.5
0
1
8
5.6
1307.8
-377.8
930.0
View list
4
207065272
Dove, M (Megan)
8
6.5
6
1
1
81.3
1179.2
265.6
1444.8
View list
5
106065267
Becker, M (Matthew)
8
1.0
1
0
7
12.5
1218.6
-318.8
899.8
View list
6
105065320
Sparg, N (Nathan)
8
0.0
0
0
8
0.0
1342.9
-425.0
917.9
View list
7
1100100199
Botha, T (Tyler)
7
4.5
4
1
2
64.3
1403.2
121.4
1524.7
View list
8
108088678
Pearson, D (Dane)
6
5.0
4
2
0
83.3
1419.9
283.3
1703.2
View list
9
104043328
Xongwana, S (Sahlulelo)
6
1.0
1
0
5
16.7
1126.5
-283.3
843.2
View list
10
106065282
Meise, K (Keagen)
6
0.5
0
1
5
8.3
1400.6
-354.2
1046.4
View list
11
106059113
Chang, S (Sebastian)
6
0.0
0
0
6
0.0
1228.5
-425.0
803.5
View list
12
1060104008
Totose, Z (Zimi)
6
0.0
0
0
6
0.0
1248.5
-425.0
823.5
View list
13
1070105515
Voyi, O (Onesimo)
5
4.0
4
0
1
80.0
1376.0
255.0
1631.0
View list
14
1120109254
Mazikana, E (Ethan)
5
3.0
3
0
2
60.0
1452.9
85.0
1537.9
View list
15
1060104005
Ndlebe, A (Anda)
5
3.0
3
0
2
60.0
1218.8
85.0
1303.8
View list
16
105054349
Wang, I (Ikai)
5
1.5
1
1
3
30.0
1195.2
-170.0
1025.2
View list
17
110091704
Levitan, J (Judah)
5
1.0
1
0
4
20.0
1048.2
-255.0
793.2
View list
18
206044986
Wang, P-S (Pei-Shan)
5
1.0
1
0
4
20.0
1134.1
-255.0
879.1
View list
19
106078250
De Villiers, E (Ethan)
4
3.0
3
0
1
75.0
1201.4
212.5
1413.9
View list
20
2060098046
Jacobs, E (Elsje)
4
3.0
3
0
1
75.0
1287.0
212.5
1499.5
View list