Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Willenberg, I (Ivan)
Dob:
1972/06/22 (Adult)
Gender:
Male
Chess SA id:
172042914
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2023/09/09 (229 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
1384.6
Curent Weighted rating
1375.2
Curent Weighted performance
871.4
Current official/published rating (highest between Raw, WR and WP)
1384.6
Current floor (min rating allowed)
975.7
Current highest rating achieved
1475.7
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)
±127.5
Current Raw change used (final)
0.0
Projected new Raw rating
1384.6
Projected new Weighed rating
1376.3
Projected new Weighted performance
871.4
Projected new official/published rating (highest between new Raw, new WR and new WP)
1384.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1475.7
Projected new floor
975.7
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
1377.2
Curent Weighted rating
1367.0
Curent Weighted performance
859.3
Current official/published rating (highest between Raw, WR and WP)
1377.2
Current floor (min rating allowed)
962.0
Current highest rating achieved
1462.0
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)
±128.8
Current Raw change used (final)
0.0
Projected new Raw rating
1377.2
Projected new Weighed rating
1368.1
Projected new Weighted performance
859.3
Projected new official/published rating (highest between new Raw, new WR and new WP)
1377.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1462.0
Projected new floor
962.0
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
1472.0
Curent Weighted rating
1472.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1472.0
Current floor (min rating allowed)
994.1
Current highest rating achieved
1494.1
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)
±112.5
Current Raw change used (final)
0.0
Projected new Raw rating
1472.0
Projected new Weighed rating
1472.0
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1472.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1494.1
Projected new floor
994.1
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
1462.0
Curent Weighted rating
1461.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1462.0
Current floor (min rating allowed)
994.1
Current highest rating achieved
1462.0
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)
±114.2
Current Raw change used (final)
0.0
Projected new Raw rating
1462.0
Projected new Weighed rating
1461.2
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1462.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1462.0
Projected new floor
994.1
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
12
WP Club League 2023 (D PlayOffs)
2023/09/02
2023/09/09
Cape Town (WCT)
Standard
70
0.87
5
3
2.5
1359.3
1349.7
Analysis
11
WP Club League 2023 (D2)
2023/08/05
2023/08/26
Cape Town (WCT)
Standard
70
0.87
6
2
1.0
1364.3
1354.8
Analysis
10
2022 Western Province Club League (D)
2022/08/27
2022/10/01
Cape Town (WCT)
Standard
70
0.87
7
4
2.0
1366.0
1359.6
Analysis
9
Steinitz Open 2022 (C)
2022/05/21
2022/05/22
Cape Town (WCT)
Standard
60
0.83
5
5
4.0
1333.3
1326.6
Analysis
8
2019 Western Province League (C)
2019/07/27
2019/09/07
Cape Town (WCT)
Standard
120
1.00
11
8
1.5
1433.5
1423.9
Analysis
7
2019 Elsies River Open (Open)
2019/06/22
2019/06/23
Cape Town (WCT)
Standard
70
0.87
6
6
4.0
1424.9
1420.1
Analysis
6
Condorgreen Mitchell`s Plain Chess Open Tournament 2019
2019/06/01
2019/06/02
Cape Town (WCT)
Rapid
25
0.54
9
9
5.5
1424.9
1494.1
Analysis
5
Crossroads Open Chess Championship 2019 (C)
2019/04/27
2019/04/28
Cape Town (WCT)
Standard
70
0.87
6
6
5.0
1387.6
1373.4
Analysis
4
Steinitz Chess Festival 2019 (B)
2019/04/05
2019/04/07
Cape Town (WCT)
Standard
70
0.87
6
6
3.5
1387.6
1373.4
Analysis
2
2018 Western Province League (B)
2018/08/04
2018/09/15
Cape Town (WCT)
Standard
90
0.94
11
7
0.5
1475.7
1460.8
Analysis
3
2018 Western Province League (B)
2018/08/04
2018/09/15
Cape Town (WCT)
Standard
90
0.94
11
4
1.0
1475.7
1460.8
Analysis
1
Eldo Smart Memorial Rapid Tournament 2018
2018/06/16
2018/06/16
Cape Town (WCT)
Rapid
20
0.47
7
7
4.5
1460.8
1460.8
Analysis
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
67
31
8
28
35.0
52.2
19.0
1374.2
1393.3
White
28
17
4
7
19.0
67.9
151.8
1341.1
1492.9
Black
39
14
4
21
16.0
41.0
-76.3
1398.0
1321.7
Standard
All
51
22
6
23
25.0
49.0
-8.3
1362.4
1354.0
White
20
11
3
6
12.5
62.5
106.3
1319.6
1425.8
Black
31
11
3
17
12.5
40.3
-82.3
1390.0
1307.7
Rapid
All
16
9
2
5
10.0
62.5
106.3
1412.0
1518.3
White
8
6
1
1
6.5
81.3
265.6
1395.0
1660.6
Black
8
3
1
4
3.5
43.8
-53.1
1429.0
1375.9
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
105094575
Nonco, L (Lwazi)
2
2.0
2
0
0
100.0
1387.6
425.0
1812.6
View list
2
211087036
Osborne, H (Hannah)
2
2.0
2
0
0
100.0
1397.0
425.0
1822.0
View list
3
1110106190
Salimu, C (Chase)
2
2.0
2
0
0
100.0
1406.3
425.0
1831.3
View list
4
2000056152
Ariefdien, D (Dominique)
2
1.5
1
1
0
75.0
1387.6
212.5
1600.1
View list
5
162042913
Willenberg, GI (Glen)
2
1.0
1
0
1
50.0
1468.3
0.0
1468.3
View list
6
207090602
Fani, Z (Zimi)
1
1.0
1
0
0
100.0
1366.0
425.0
1791.0
View list
7
169061334
De Jager, L (Leon)
1
1.0
1
0
0
100.0
1359.3
425.0
1784.3
View list
8
106092092
Budge, D (Daniel)
1
1.0
1
0
0
100.0
1359.3
425.0
1784.3
View list
9
188003737
Brown, JR (John-Rodney)
1
1.0
1
0
0
100.0
1475.7
425.0
1900.7
View list
10
157003719
Brown, D (Deon)
1
1.0
1
0
0
100.0
1424.9
425.0
1849.9
View list
11
107087105
Brink, W (Wihan)
1
1.0
1
0
0
100.0
1333.3
425.0
1758.3
View list
12
108089520
Adams, K (Kyron)
1
1.0
1
0
0
100.0
1424.9
425.0
1849.9
View list
13
103086058
Adams, K (Kyle)
1
1.0
1
0
0
100.0
1424.9
425.0
1849.9
View list
14
207090606
Gcuze, K (Khanya)
1
1.0
1
0
0
100.0
1387.6
425.0
1812.6
View list
15
1040103482
Halley, J (Joshua)
1
1.0
1
0
0
100.0
1460.8
425.0
1885.8
View list
16
165012829
Honey, H (Hendrik)
1
1.0
1
0
0
100.0
1433.5
425.0
1858.5
View list
17
105013511
Jaffer, U (Uzair)
1
1.0
1
0
0
100.0
1424.9
425.0
1849.9
View list
18
1100161560
Kavule, G (Godfrey)
1
1.0
1
0
0
100.0
1364.3
425.0
1789.3
View list
19
2030114976
Martheze, Z (Zafirah)
1
1.0
1
0
0
100.0
1424.9
425.0
1849.9
View list
20
174021979
Maxwell, CP (Christian)
1
1.0
1
0
0
100.0
1460.8
425.0
1885.8
View list