Player Page

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: 2024/05/11 (10 days ago)
Ratings
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 rating1384.6
Curent Weighted rating1376.3
Curent Weighted performance859.4
Current official/published rating (highest between Raw, WR and WP)1384.6
Current floor (min rating allowed)975.7
Current highest rating achieved1475.7
Current K-factor32
Games played this month4
Score (S)1.0
Expected score (We)2.73
Difference (S-We)-1.73
Current Raw change (no limits, including tournament time weight)-26.0
Current min/max change allowed (with limits)±127.5
Current Raw change used (final)-26.0
Projected new Raw rating1358.6
Projected new Weighed rating1375.2
Projected new Weighted performance859.4
Projected new official/published rating (highest between new Raw, new WR and new WP)1375.2
Projected effective change (new Official - current Official)-9.4
Projected new highest rating1475.7
Projected new floor975.7
Projected new K-facor32
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 rating1377.2
Curent Weighted rating1368.1
Curent Weighted performance847.3
Current official/published rating (highest between Raw, WR and WP)1377.2
Current floor (min rating allowed)962.0
Current highest rating achieved1462.0
Current K-factor32
Games played this month0
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 rating1377.2
Projected new Weighed rating1369.2
Projected new Weighted performance847.3
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 rating1462.0
Projected new floor962.0
Projected new K-facor32
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 rating1472.0
Curent Weighted rating1472.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1472.0
Current floor (min rating allowed)994.1
Current highest rating achieved1494.1
Current K-factor32
Games played this month4
Score (S)1.0
Expected score (We)3.08
Difference (S-We)-2.08
Current Raw change (no limits, including tournament time weight)-66.6
Current min/max change allowed (with limits)±112.5
Current Raw change used (final)-66.6
Projected new Raw rating1405.4
Projected new Weighed rating1466.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1466.7
Projected effective change (new Official - current Official)-5.3
Projected new highest rating1494.1
Projected new floor994.1
Projected new K-facor32
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 rating1462.0
Curent Weighted rating1461.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1462.0
Current floor (min rating allowed)994.1
Current highest rating achieved1462.0
Current K-factor32
Games played this month0
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 rating1462.0
Projected new Weighed rating1461.3
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 rating1462.0
Projected new floor994.1
Projected new K-facor32
Tournaments
Tournament: Steinitz Chess Festival 2024 (Open Rapid)
Start: 2024/05/11  End: 2024/05/11  Host: WCT  Type: Rapid   Time: 20  Time weight: 0.47  Rounds: 4
Games: 4  Score: 1.0
Main rating: 1384.6  Rating gain/loss: -26.0
Type rating: 1472.0  Rating gain/loss: -66.6
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 Steinitz Chess Festival 2024 (Open Rapid) 2024/05/11 2024/05/11 Cape Town (WCT) Rapid 20 0.47 6 4 1.0 1384.6 1472.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
13 Steinitz Chess Festival 2024 (Open Rapid) 2024/05/11 2024/05/11 Cape Town (WCT) Rapid 20 0.47 6 4 1.0 1384.6 1472.0 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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 4 1 0 3 1.0 25.0 -212.5 1226.3 1013.8
White 2 1 0 1 1.0 50.0 0.0 1217.9 1217.9
Black 2 0 0 2 0.0 0.0 -425.0 1234.7 809.7
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 4 1 0 3 1.0 25.0 -212.5 1226.3 1013.8
White 2 1 0 1 1.0 50.0 0.0 1217.9 1217.9
Black 2 0 0 2 0.0 0.0 -425.0 1234.7 809.7
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 71 32 8 31 36.0 50.7 6.0 1365.9 1371.9
White 30 18 4 8 20.0 66.7 141.7 1332.9 1474.6
Black 41 14 4 23 16.0 39.0 -93.3 1390.0 1296.7
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 20 10 2 8 11.0 55.0 42.5 1374.9 1417.4
White 10 7 1 2 7.5 75.0 212.5 1359.6 1572.1
Black 10 3 1 6 3.5 35.0 -127.5 1390.1 1262.6
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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 1080150205 Devaney, N (Nigel) 1 1.0 1 0 0 100.0 1384.6 425.0 1809.6 View list
8 169061334 De Jager, L (Leon) 1 1.0 1 0 0 100.0 1359.3 425.0 1784.3 View list
9 106092092 Budge, D (Daniel) 1 1.0 1 0 0 100.0 1359.3 425.0 1784.3 View list
10 188003737 Brown, JR (John-Rodney) 1 1.0 1 0 0 100.0 1475.7 425.0 1900.7 View list
11 157003719 Brown, D (Deon) 1 1.0 1 0 0 100.0 1424.9 425.0 1849.9 View list
12 107087105 Brink, W (Wihan) 1 1.0 1 0 0 100.0 1333.3 425.0 1758.3 View list
13 108089520 Adams, K (Kyron) 1 1.0 1 0 0 100.0 1424.9 425.0 1849.9 View list
14 103086058 Adams, K (Kyle) 1 1.0 1 0 0 100.0 1424.9 425.0 1849.9 View list
15 207090606 Gcuze, K (Khanya) 1 1.0 1 0 0 100.0 1387.6 425.0 1812.6 View list
16 1040103482 Halley, J (Joshua) 1 1.0 1 0 0 100.0 1460.8 425.0 1885.8 View list
17 165012829 Honey, H (Hendrik) 1 1.0 1 0 0 100.0 1433.5 425.0 1858.5 View list
18 105013511 Jaffer, U (Uzair) 1 1.0 1 0 0 100.0 1424.9 425.0 1849.9 View list
19 1100161560 Kavule, G (Godfrey) 1 1.0 1 0 0 100.0 1364.3 425.0 1789.3 View list
20 2030114976 Martheze, Z (Zafirah) 1 1.0 1 0 0 100.0 1424.9 425.0 1849.9 View list