Chess South Africa
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Chess South Africa
Isaacs, WS (William)
Dob:
1964/08/28 (Adult)
Gender:
Male
Chess SA id:
164013218
FIDE id:
Region:
Cape Winelands (WCW)
Citizen:
RSA
Title(s):
Last active:
2024/03/09 (76 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
1340.7
Curent Weighted rating
1349.4
Curent Weighted performance
1233.1
Current official/published rating (highest between Raw, WR and WP)
1349.4
Current floor (min rating allowed)
916.4
Current highest rating achieved
1416.4
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)
±135.7
Current Raw change used (final)
0.0
Projected new Raw rating
1340.7
Projected new Weighed rating
1348.3
Projected new Weighted performance
1233.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1348.3
Projected effective change (new Official - current Official)
-1.1
Projected new highest rating
1416.4
Projected new floor
916.4
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
1337.6
Curent Weighted rating
1357.6
Curent Weighted performance
1217.8
Current official/published rating (highest between Raw, WR and WP)
1357.6
Current floor (min rating allowed)
921.7
Current highest rating achieved
1421.7
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)
±136.3
Current Raw change used (final)
0.0
Projected new Raw rating
1337.6
Projected new Weighed rating
1355.0
Projected new Weighted performance
1217.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1355.0
Projected effective change (new Official - current Official)
-2.5
Projected new highest rating
1421.7
Projected new floor
921.7
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
1275.2
Curent Weighted rating
1275.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1275.2
Current floor (min rating allowed)
897.0
Current highest rating achieved
1397.0
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)
±149.0
Current Raw change used (final)
0.0
Projected new Raw rating
1275.2
Projected new Weighed rating
1275.2
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1275.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1397.0
Projected new floor
897.0
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
1258.3
Curent Weighted rating
1258.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1258.5
Current floor (min rating allowed)
897.0
Current highest rating achieved
1397.0
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)
±152.6
Current Raw change used (final)
0.0
Projected new Raw rating
1258.3
Projected new Weighed rating
1258.3
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1258.3
Projected effective change (new Official - current Official)
-0.2
Projected new highest rating
1397.0
Projected new floor
897.0
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
South African Braille Open 2024
2024/03/09
2024/03/09
Cape Winelands (WCW)
Standard
60
0.83
5
5
3.5
1322.6
1318.7
Analysis
1
Cape Winelands - Marie Delport Memorial 2024 (Open)
2024/01/27
2024/01/28
Cape Winelands (WCW)
Standard
70
0.87
6
6
3.0
1339.0
1341.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
18
South African Braille Open 2024
2024/03/09
2024/03/09
Cape Winelands (WCW)
Standard
60
0.83
5
5
3.5
1322.6
1318.7
Analysis
17
Cape Winelands - Marie Delport Memorial 2024 (Open)
2024/01/27
2024/01/28
Cape Winelands (WCW)
Standard
70
0.87
6
6
3.0
1339.0
1341.4
Analysis
16
2023 Western Cape Rural Cup (Open)
2023/12/09
2023/12/10
Cape Winelands (WCW)
Standard
60
0.83
5
4
0.0
1365.3
1375.0
Analysis
15
Strategema 2023 (Open)
2023/05/13
2023/05/13
Cape Winelands (WCW)
Standard
60
0.83
5
5
3.0
1366.4
1385.2
Analysis
14
Braille Top 8 2023
2023/03/20
2023/03/21
Cape Winelands (WCW)
Standard
60
0.83
7
7
5.5
1350.0
1371.1
Analysis
13
SA Braille South 2023
2023/03/18
2023/03/19
Cape Winelands (WCW)
Standard
90
0.94
5
5
2.5
1350.0
1371.1
Analysis
12
Marie Delport Memorial 2023 (Open)
2023/01/21
2023/01/21
Cape Winelands (WCW)
Standard
70
0.87
6
6
4.0
1363.1
1395.7
Analysis
11
Western Cape Closed Championship 2022 (Prestige)
2022/09/24
2022/09/25
Cape Winelands (WCW)
Standard
70
0.87
6
0
0.0
1363.1
1395.7
Analysis
10
WCCA Rural Cup 2022 (Open)
2022/08/13
2022/08/14
Overberg (WOS)
Standard
60
0.83
5
4
3.0
1350.1
1387.1
Analysis
9
WCCA Rural Cup Blitz 2022
2022/07/12
2022/07/12
Overberg (WOS)
Blitz
5
0.18
5
4
1.0
1358.8
1313.0
Analysis
8
SA Braille 2022
2022/04/16
2022/04/17
Cape Winelands (WCW)
Standard
90
0.94
5
5
3.5
1354.9
1391.3
Analysis
7
Cape Winelands Open 2022 (Braille)
2022/02/12
2022/02/13
Cape Winelands (WCW)
Standard
70
0.87
6
5
3.0
1373.0
1421.7
Analysis
6
Robertson Chess 2020 (Open)
2020/03/07
2020/03/07
Cape Winelands (WCW)
Rapid
30
0.60
5
5
3.0
1380.5
1270.9
Analysis
5
Robertson Strategema 2019 (Open)
2019/10/05
2019/10/05
Cape Winelands (WCW)
Rapid
30
0.60
5
5
2.0
1416.4
1313.0
Analysis
4
Braille Top 8 2019
2019/09/14
2019/09/15
Cape Winelands (WCW)
Standard
90
0.94
7
7
4.5
1407.4
1413.4
Analysis
3
SA Braille Worcester 2019
2019/03/23
2019/03/24
Cape Winelands (WCW)
Standard
90
0.94
5
5
4.0
1307.9
1307.6
Analysis
2
Braille Top 8 2019
2019/03/21
2019/03/22
Cape Winelands (WCW)
Standard
90
0.94
7
7
6.0
1307.9
1307.6
Analysis
1
Sa Braille Worcester Open 2018
2018/04/27
2018/04/28
Cape Winelands (WCW)
Standard
90
0.94
7
4
2.0
1313.0
1313.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
11
5
3
3
6.5
59.1
77.3
1240.6
1317.8
White
5
2
3
0
3.5
70.0
170.0
1255.5
1425.5
Black
6
3
0
3
3.0
50.0
0.0
1228.1
1228.1
Standard
All
11
5
3
3
6.5
59.1
77.3
1240.6
1317.8
White
5
2
3
0
3.5
70.0
170.0
1255.5
1425.5
Black
6
3
0
3
3.0
50.0
0.0
1228.1
1228.1
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
89
50
7
32
53.5
60.1
86.0
1244.5
1330.5
White
44
26
5
13
28.5
64.8
125.6
1215.3
1340.9
Black
45
24
2
19
25.0
55.6
47.2
1273.1
1320.3
Standard
All
75
44
7
24
47.5
63.3
113.3
1249.6
1363.0
White
37
22
5
10
24.5
66.2
137.8
1218.1
1356.0
Black
38
22
2
14
23.0
60.5
89.5
1280.3
1369.8
Rapid
All
10
5
0
5
5.0
50.0
0.0
1204.5
1204.5
White
5
3
0
2
3.0
60.0
85.0
1181.1
1266.1
Black
5
2
0
3
2.0
40.0
-85.0
1227.9
1142.9
Blitz
All
4
1
0
3
1.0
25.0
-212.5
1248.9
1036.4
White
2
1
0
1
1.0
50.0
0.0
1248.2
1248.2
Black
2
0
0
2
0.0
0.0
-425.0
1249.6
824.6
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
164032165
Richter, HL (Heinrich)
7
3.5
3
1
3
50.0
1354.3
0.0
1354.3
View list
2
179018022
Liebenberg, FW (Frederick)
7
2.0
2
0
5
28.6
1337.0
-182.1
1154.8
View list
3
171003456
Bresler, C (Conrad)
5
4.5
4
1
0
90.0
1350.1
340.0
1690.1
View list
4
268080006
Rossouw, J (Joan)
5
4.0
4
0
1
80.0
1357.5
255.0
1612.5
View list
5
145010473
Geyer, D (David)
5
2.5
2
1
2
50.0
1360.1
0.0
1360.1
View list
6
156005435
Conradie, AF (Abram)
4
3.0
3
0
1
75.0
1356.9
212.5
1569.4
View list
7
1910111421
Klue, CR (Christiaan Reue)
3
3.0
3
0
0
100.0
1363.1
425.0
1788.1
View list
8
144017748
Leonard, C (Clyde)
3
3.0
3
0
0
100.0
1342.8
425.0
1767.8
View list
9
275031506
Rahn, MC (Marlene)
3
3.0
3
0
0
100.0
1337.6
425.0
1762.6
View list
10
1710139908
Neethling, FJ (Francois Jacques)
3
2.0
1
2
0
66.7
1340.9
141.7
1482.5
View list
11
166018735
Lucas, M (Melvyn)
3
0.5
0
1
2
16.7
1356.7
-283.3
1073.4
View list
12
1940111420
Henning, J (Johan)
2
2.0
2
0
0
100.0
1394.7
425.0
1819.7
View list
13
1080137603
De Lange, R (Rhailihn)
2
2.0
2
0
0
100.0
1351.0
425.0
1776.0
View list
14
171036861
Swanepoel, K (Karel)
2
2.0
2
0
0
100.0
1307.9
425.0
1732.9
View list
15
160037650
Theunis, DP (Desmond)
2
1.0
1
0
1
50.0
1360.2
0.0
1360.2
View list
16
1080134436
Bosman, B (Burnito)
1
1.0
1
0
0
100.0
1358.8
425.0
1783.8
View list
17
195002545
Boois, A (Aser)
1
1.0
1
0
0
100.0
1350.1
425.0
1775.1
View list
18
291004879
Claassen, NA (Nadia)
1
1.0
1
0
0
100.0
1350.1
425.0
1775.1
View list
19
158003751
Brown, S (Sam)
1
1.0
1
0
0
100.0
1407.4
425.0
1832.4
View list
20
1060158346
Faro, H (Henson)
1
1.0
1
0
0
100.0
1339.0
425.0
1764.0
View list