Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Lau, C (Callum)
Dob:
2008/04/20 (U18)
Gender:
Male
Chess SA id:
108091526
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/05/18 (4 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
1551.2
Curent Weighted rating
1507.0
Curent Weighted performance
1532.0
Current official/published rating (highest between Raw, WR and WP)
1551.2
Current floor (min rating allowed)
1059.5
Current highest rating achieved
1559.5
Current K-factor
32
Games played this month
5
Score (S)
4.5
Expected score (We)
3.69
Difference (S-We)
0.81
Current Raw change (no limits, including tournament time weight)
14.0
Current min/max change allowed (with limits)
±100.5
Current Raw change used (final)
14.0
Projected new Raw rating
1565.2
Projected new Weighed rating
1514.8
Projected new Weighted performance
1532.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1565.2
Projected effective change (new Official - current Official)
+14.0
Projected new highest rating
1565.2
Projected new floor
1065.2
Projected new K-facor
32
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
1558.1
Curent Weighted rating
1487.5
Curent Weighted performance
1530.6
Current official/published rating (highest between Raw, WR and WP)
1558.1
Current floor (min rating allowed)
1058.1
Current highest rating achieved
1558.1
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)
±99.6
Current Raw change used (final)
0.0
Projected new Raw rating
1558.1
Projected new Weighed rating
1496.2
Projected new Weighted performance
1530.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1558.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1558.1
Projected new floor
1058.1
Projected new K-facor
32
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
1212.3
Curent Weighted rating
1207.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1212.3
Current floor (min rating allowed)
720.5
Current highest rating achieved
1220.5
Current K-factor
36
Games played this month
5
Score (S)
4.5
Expected score (We)
2.01
Difference (S-We)
2.49
Current Raw change (no limits, including tournament time weight)
89.6
Current min/max change allowed (with limits)
±162.9
Current Raw change used (final)
89.6
Projected new Raw rating
1301.9
Projected new Weighed rating
1214.6
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1301.9
Projected effective change (new Official - current Official)
+89.6
Projected new highest rating
1301.9
Projected new floor
801.9
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
720.5
Current highest rating achieved
1200.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1200.0
Projected new floor
720.5
Projected new K-facor
36
Tournaments
History
Tournament:
Cape Town Junior League Finals 2024 (U18 Open A)
Start:
2024/05/18
End:
2024/05/18
Host:
WCT
Type:
Rapid
Time:
25
Time weight:
0.54
Rounds:
5
Games:
5
Score:
4.5
Main rating:
1551.2
Rating gain/loss:
14.0
Type rating:
1212.3
Rating gain/loss:
89.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
6
Cape Town Junior League Finals 2024 (U18 Open A)
2024/05/18
2024/05/18
Cape Town (WCT)
Rapid
25
0.54
5
5
4.5
1551.2
1212.3
Analysis
5
Cape Town Junior League Qualifier 2024 (U18 Open)
2024/04/06
2024/04/06
Cape Town (WCT)
Rapid
25
0.54
6
2
0.5
1559.5
1206.5
Analysis
4
Western Cape HS Individuals Championship 2024 (U18 Boys)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
4.5
1521.6
1502.1
Analysis
3
Cape Town Open Chess Championship 2024 (Advanced)
2024/03/15
2024/03/17
Cape Town (WCT)
Standard
90
0.94
6
6
3.5
1521.6
1502.1
Analysis
2
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.5
1521.6
1502.1
Analysis
1
CT Metro Central District Schools Chess Individuals Trials 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1530.6
1507.5
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
40
Cape Town Junior League Finals 2024 (U18 Open A)
2024/05/18
2024/05/18
Cape Town (WCT)
Rapid
25
0.54
5
5
4.5
1551.2
1212.3
Analysis
39
Cape Town Junior League Qualifier 2024 (U18 Open)
2024/04/06
2024/04/06
Cape Town (WCT)
Rapid
25
0.54
6
2
0.5
1559.5
1206.5
Analysis
38
Western Cape HS Individuals Championship 2024 (U18 Boys)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
4.5
1521.6
1502.1
Analysis
37
Cape Town Open Chess Championship 2024 (Advanced)
2024/03/15
2024/03/17
Cape Town (WCT)
Standard
90
0.94
6
6
3.5
1521.6
1502.1
Analysis
36
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.5
1521.6
1502.1
Analysis
35
CT Metro Central District Schools Chess Individuals Trials 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1530.6
1507.5
Analysis
34
Paarl Boys High Chess Festival 2023 (Elite Division)
2023/10/13
2023/10/14
Cape Winelands (WCW)
Standard
60
0.83
6
6
4.0
1518.1
1489.9
Analysis
33
WP Club League 2023 (D PlayOffs)
2023/09/02
2023/09/09
Cape Town (WCT)
Standard
70
0.87
5
2
2.0
1507.5
1473.3
Analysis
32
Western Cape Top Schools 2023 (U15 Mixed)
2023/09/02
2023/09/03
Cape Winelands (WCW)
Standard
60
0.83
6
0
0.0
1507.5
1473.3
Analysis
31
WP Club League 2023 (D1)
2023/07/29
2023/08/19
Cape Town (WCT)
Standard
70
0.87
6
3
1.0
1535.9
1503.1
Analysis
30
Western Cape HS Individuals 2023 (U15 Boys)
2023/04/01
2023/04/02
Cape Town (WCT)
Standard
60
0.83
6
6
3.5
1521.5
1486.6
Analysis
29
Cape Town Open 2023 (Intermediate)
2023/03/25
2023/03/26
Cape Town (WCT)
Standard
70
0.87
6
6
6.0
1388.4
1381.7
Analysis
28
Cape Town Metro Schools Chess Closed Individuals 2023 (U15 Boys)
2023/02/03
2023/03/04
Cape Town (WCT)
Standard
60
0.83
6
6
4.0
1388.4
1381.7
Analysis
27
Central District School Trials 2023 (U15 Boys)
2023/02/03
2023/02/04
Cape Town (WCT)
Standard
60
0.83
6
6
4.5
1353.3
1343.6
Analysis
26
2022 Western Province Club League (D)
2022/08/27
2022/10/01
Cape Town (WCT)
Standard
70
0.87
7
6
4.0
1345.5
1337.2
Analysis
25
South African Open 2022 (B)
2022/07/09
2022/07/17
Cape Town (WCT)
Standard
120
1.00
11
11
4.5
1422.0
1406.0
Analysis
24
Stellenberg Chess Championship 2022 (Challengers 1)
2022/06/24
2022/06/25
Cape Town (WCT)
Standard
65
0.85
6
6
2.5
1448.1
1439.6
Analysis
23
Steinitz Open 2022 (B)
2022/05/20
2022/05/22
Cape Town (WCT)
Standard
90
0.94
6
6
3.0
1461.6
1456.9
Analysis
22
2022 Central District Individual Trials (U15)
2022/03/05
2022/03/05
Cape Town (WCT)
Rapid
30
0.60
5
4
2.0
1465.6
1220.5
Analysis
21
Western Province Open 2022 (Intermediate)
2022/02/26
2022/02/27
Cape Town (WCT)
Standard
70
0.87
6
6
5.5
1407.4
1389.7
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
30
17
6
7
20.0
66.7
141.7
1417.3
1559.0
White
13
9
2
2
10.0
76.9
228.8
1410.4
1639.2
Black
17
8
4
5
10.0
58.8
75.0
1422.6
1497.6
Standard
All
23
13
4
6
15.0
65.2
129.3
1426.9
1556.2
White
12
8
2
2
9.0
75.0
212.5
1409.0
1621.5
Black
11
5
2
4
6.0
54.5
38.6
1446.4
1485.0
Rapid
All
7
4
2
1
5.0
71.4
182.1
1385.8
1567.9
White
1
1
0
0
1.0
100.0
425.0
1427.0
1852.0
Black
6
3
2
1
4.0
66.7
141.7
1378.9
1520.6
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
213
120
19
74
129.5
60.8
91.8
1317.9
1409.7
White
103
58
9
36
62.5
60.7
90.8
1311.1
1401.9
Black
110
62
10
38
67.0
60.9
92.7
1324.2
1416.9
Standard
All
192
109
16
67
117.0
60.9
93.0
1313.9
1406.9
White
95
54
8
33
58.0
61.1
93.9
1306.2
1400.2
Black
97
55
8
34
59.0
60.8
92.0
1321.5
1413.5
Rapid
All
21
11
3
7
12.5
59.5
81.0
1353.8
1434.7
White
8
4
1
3
4.5
56.3
53.1
1369.2
1422.3
Black
13
7
2
4
8.0
61.5
98.1
1344.3
1442.4
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
108092087
Mthi, Y (Yamkela)
4
1.0
1
0
3
25.0
1333.2
-212.5
1120.7
View list
2
108053347
Allie, I (Ishmaeel)
4
0.5
0
1
3
12.5
1337.6
-318.8
1018.8
View list
3
108072311
Karsten, JD (Jan)
4
0.0
0
0
4
0.0
1323.0
-425.0
898.0
View list
4
2080109012
Gebu, S (Sisipho)
3
3.0
3
0
0
100.0
1404.5
425.0
1829.5
View list
5
107064487
Lee, MJ (Muhammad)
3
3.0
3
0
0
100.0
1446.7
425.0
1871.7
View list
6
107076747
Osborne, R (Ryan Eugene)
3
3.0
3
0
0
100.0
1364.5
425.0
1789.5
View list
7
1070097558
Maruma, K (Katlego)
3
2.0
1
2
0
66.7
1489.7
141.7
1631.4
View list
8
108051707
De Wit, M (Marnus)
3
1.0
1
0
2
33.3
1319.6
-141.7
1177.9
View list
9
1080162366
Craig, C (Connor)
2
2.0
2
0
0
100.0
1540.9
425.0
1965.9
View list
10
1090107483
Janse Van Rensburg, A (Arden)
2
2.0
2
0
0
100.0
1219.6
425.0
1644.6
View list
11
1090109869
Priestley, L (Logan)
2
2.0
2
0
0
100.0
1360.8
425.0
1785.8
View list
12
208069933
Sihamba, S (Somila)
2
2.0
2
0
0
100.0
1397.9
425.0
1822.9
View list
13
1080130949
Von Seidel, V (Victor)
2
2.0
2
0
0
100.0
1365.7
425.0
1790.7
View list
14
109092070
Wilson, J (James)
2
2.0
2
0
0
100.0
1325.6
425.0
1750.6
View list
15
194028263
November, EJ (Enrique)
2
1.5
1
1
0
75.0
1263.5
212.5
1476.0
View list
16
1080103429
Winter, C (Cuthanzario)
2
1.5
1
1
0
75.0
1385.8
212.5
1598.3
View list
17
1080142299
Armien, E (Eesa)
2
1.0
1
0
1
50.0
1521.6
0.0
1521.6
View list
18
108072976
Du Plessis, A (Arno)
2
1.0
1
0
1
50.0
1521.5
0.0
1521.5
View list
19
163092629
Goosen, P (Pierre)
2
1.0
1
0
1
50.0
1403.5
0.0
1403.5
View list
20
109087931
Michiel, RRJ (Raidan)
2
1.0
1
0
1
50.0
1348.0
0.0
1348.0
View list