Player Page

Weideman, J (Janko)
Dob: 2012/11/12 (U14)
Gender: Male
Chess SA id: 1120134372
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/07/13 (14 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
Current Raw rating1611.0
Current Weighted rating1454.6
Current Weighted performance1561.1
Current official/published rating (highest between Raw, WR and WP)1611.0
Current highest rating achieved1611.0
Current floor (min rating allowed)1111.0
Current K-factor28
Games played this month6
Score (S)3.0
Expected score (We)3.10
Difference (S-We)-0.07
Current Raw change (no limits, including tournament time weight)-1.8
Current min/max change allowed (with limits)±92.3
Current Raw change used (final)-1.8
Projected new Raw rating1609.2
Projected new Weighed rating1338.3
Projected new Weighted performance1568.8
Projected new final Raw rating (if new WP > new Raw)1609.2
Projected new highest rating1611.0
Projected new floor1111.0
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1609.2
Projected effective change (new Official - current Official)-1.8
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
Current Raw rating1613.2
Current Weighted rating1458.4
Current Weighted performance1569.4
Current official/published rating (highest between Raw, WR and WP)1613.2
Current highest rating achieved1613.2
Current floor (min rating allowed)1113.2
Current K-factor28
Games played this month-4
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)±92.0
Current Raw change used (final)0.0
Projected new Raw rating1613.2
Projected new Weighed rating1342.4
Projected new Weighted performance1569.4
Projected new final Raw rating (if new WP > new Raw)1613.2
Projected new highest rating1613.2
Projected new floor1113.2
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1613.2
Projected effective change (new Official - current Official)=0.0
s
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
Current Raw rating1352.7
Current Weighted rating1357.8
Current Weighted performance1330.1
Current official/published rating (highest between Raw, WR and WP)1357.8
Current highest rating achieved1480.7
Current floor (min rating allowed)980.7
Current K-factor32
Games played this month6
Score (S)3.0
Expected score (We)1.69
Difference (S-We)1.31
Current Raw change (no limits, including tournament time weight)41.9
Current min/max change allowed (with limits)±133.4
Current Raw change used (final)41.9
Projected new Raw rating1394.6
Projected new Weighed rating1247.3
Projected new Weighted performance1427.1
Projected new final Raw rating (if new WP > new Raw)1427.1
Projected new highest rating1480.7
Projected new floor980.7
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1427.1
Projected effective change (new Official - current Official)+69.3
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
Current Raw rating1087.2
Current Weighted rating1103.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1103.2
Current highest rating achieved1113.2
Current floor (min rating allowed)613.2
Current K-factor40
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)±194.7
Current Raw change used (final)0.0
Projected new Raw rating1087.2
Projected new Weighed rating1013.1
Projected new Weighted performance643.5
Projected new final Raw rating (if new WP > new Raw)1087.2
Projected new highest rating1113.2
Projected new floor613.2
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1087.2
Projected effective change (new Official - current Official)-16.0
Tournaments
Tournament: Curro Durbanville Chess Rapid Open 2024 (Championship)
Start: 2024/07/13  End: 2024/07/13  Host: WCT  Type: Rapid   Time: 35  Time weight: 0.66  Rounds: 6
Games: 6  Score: 3.0
Main rating: 1611.0  Rating gain/loss: -1.8
Type rating: 1352.7  Rating gain/loss: 41.9
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
6 Curro Durbanville Chess Rapid Open 2024 (Championship) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 3.0 1611.0 1352.7 Analysis
5 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 6.0 1521.1 1524.2 Analysis
4 Steinitz Chess Festival 2024 (Open) 2024/05/10 2024/05/12 Cape Town (WCT) Standard 90 0.94 6 6 3.5 1426.0 1429.8 Analysis
3 South African Junior Closed Chess Championship 2024 (U12 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 6.0 1426.0 1429.8 Analysis
2 Cape Town Open Rapid Chess Championship 2024 (Open) 2024/03/17 2024/03/17 Cape Town (WCT) Rapid 25 0.54 6 6 3.5 1428.4 1356.5 Analysis
1 Cape Town Masters Challenge 2024 (Advanced) 2024/01/03 2024/01/07 Cape Town (WCT) Standard 120 1.00 7 7 2.5 1436.7 1435.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
49 Curro Durbanville Chess Rapid Open 2024 (Championship) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 3.0 1611.0 1352.7 Analysis
48 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 6.0 1521.1 1524.2 Analysis
47 Steinitz Chess Festival 2024 (Open) 2024/05/10 2024/05/12 Cape Town (WCT) Standard 90 0.94 6 6 3.5 1426.0 1429.8 Analysis
46 South African Junior Closed Chess Championship 2024 (U12 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 6.0 1426.0 1429.8 Analysis
45 Cape Town Open Rapid Chess Championship 2024 (Open) 2024/03/17 2024/03/17 Cape Town (WCT) Rapid 25 0.54 6 6 3.5 1428.4 1356.5 Analysis
44 Cape Town Masters Challenge 2024 (Advanced) 2024/01/03 2024/01/07 Cape Town (WCT) Standard 120 1.00 7 7 2.5 1436.7 1435.2 Analysis
43 Kraaifontein Open 2023 (Adanced) 2023/12/09 2023/12/10 Cape Town (WCT) Standard 70 0.87 6 6 3.0 1423.9 1420.2 Analysis
42 Chas Everitt and MHI Attorneys Rapid 2023 (B) 2023/11/04 2023/11/04 Cape Town (WCT) Rapid 25 0.54 6 6 4.5 1403.5 1305.3 Analysis
41 Bonnievale Open Rapid 2023 (Advanced) 2023/10/21 2023/10/21 Cape Winelands (WCW) Rapid 25 0.54 6 6 2.0 1405.9 1322.6 Analysis
40 Western Cape Closed Championship 2023 (C) 2023/09/24 2023/09/25 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1433.2 1452.5 Analysis
39 Western Cape Closed Championship 2023 (Blitz) 2023/09/23 2023/09/25 Cape Town (WCT) Blitz 7 0.23 7 7 2.0 1433.2 1113.2 Analysis
38 WP Club League 2023 (D1) 2023/07/29 2023/08/19 Cape Town (WCT) Standard 70 0.87 6 3 2.0 1440.2 1470.7 Analysis
37 CT Metro District North Top Schools Chess 2023 (U11 Mixed) 2023/07/29 2023/07/29 Cape Town (WCT) Rapid 30 0.60 5 3 2.0 1497.9 1352.7 Analysis
36 Cape Winelands Open 2023 (Advanced) 2023/07/22 2023/07/23 Cape Winelands (WCW) Standard 70 0.87 6 6 2.0 1497.9 1515.8 Analysis
35 Curro Durbanville Chess Open Rapid 2023 (Advanced) 2023/07/15 2023/07/15 Cape Town (WCT) Rapid 35 0.66 6 6 2.0 1497.9 1352.7 Analysis
34 WP Closed 2023 (U12) 2023/06/16 2023/06/17 Cape Town (WCT) Standard 70 0.87 6 6 5.0 1457.3 1476.4 Analysis
33 Steinitz Open 2023 (A+B) 2023/05/26 2023/05/28 Cape Town (WCT) Standard 90 0.94 6 6 2.0 1401.8 1434.2 Analysis
32 Western Cape PS Individuals 2023 (U11 Boys) 2023/05/05 2023/05/06 Cape Town (WCT) Standard 60 0.83 6 6 5.5 1401.8 1434.2 Analysis
31 Hermanus Rapid 2023 (B) 2023/04/22 2023/04/22 Overberg (WOS) Rapid 25 0.54 6 6 3.5 1396.1 1367.1 Analysis
30 Cape Town Open 2023 (Intermediate) 2023/03/25 2023/03/26 Cape Town (WCT) Standard 70 0.87 6 6 3.0 1477.5 1441.6 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 43 22 5 16 24.5 57.0 59.3 1522.1 1581.4
White 21 11 5 5 13.5 64.3 121.4 1505.3 1626.7
Black 22 11 0 11 11.0 50.0 0.0 1538.1 1538.1
Standard All 31 16 4 11 18.0 58.1 68.5 1543.7 1612.2
White 15 8 4 3 10.0 66.7 141.7 1531.6 1673.2
Black 16 8 0 8 8.0 50.0 0.0 1555.0 1555.0
Rapid All 12 6 1 5 6.5 54.2 35.4 1466.4 1501.8
White 6 3 1 2 3.5 58.3 70.8 1439.7 1510.5
Black 6 3 0 3 3.0 50.0 0.0 1493.0 1493.0
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 291 160 33 98 176.5 60.7 90.5 1366.8 1457.3
White 150 77 22 51 88.0 58.7 73.7 1366.3 1440.0
Black 141 83 11 47 88.5 62.8 108.5 1367.2 1475.7
Standard All 181 103 26 52 116.0 64.1 119.8 1361.1 1480.9
White 92 51 15 26 58.5 63.6 115.5 1357.5 1472.9
Black 89 52 11 26 57.5 64.6 124.2 1364.9 1489.0
Rapid All 95 54 7 34 57.5 60.5 89.5 1362.2 1451.7
White 50 24 7 19 27.5 55.0 42.5 1375.8 1418.3
Black 45 30 0 15 30.0 66.7 141.7 1347.1 1488.7
Blitz All 15 3 0 12 3.0 20.0 -255.0 1463.7 1208.7
White 8 2 0 6 2.0 25.0 -212.5 1409.4 1196.9
Black 7 1 0 6 1.0 14.3 -303.6 1525.8 1222.3
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1120135094 Singh, S (Shaurya) 7 2.0 1 2 4 28.6 1444.0 -182.1 1261.9 View list
2 1110109002 Maruma, KB (Kamogelo) 5 4.5 4 1 0 90.0 1463.8 340.0 1803.8 View list
3 1120140113 Guo, A (Aleks) 5 3.5 2 3 0 70.0 1450.6 170.0 1620.6 View list
4 211087036 Osborne, H (Hannah) 4 3.0 3 0 1 75.0 1360.3 212.5 1572.8 View list
5 2120109817 Hagen, S (Sophia) 4 2.0 2 0 2 50.0 1319.7 0.0 1319.7 View list
6 1110109831 Strydom, H (Henroux) 4 2.0 2 0 2 50.0 1371.9 0.0 1371.9 View list
7 2120114045 Wilson, EM (Emlyn) 4 2.0 2 0 2 50.0 1394.5 0.0 1394.5 View list
8 1110104004 Shapiro, M (Matthew) 4 0.5 0 1 3 12.5 1385.4 -318.8 1066.7 View list
9 161042919 Willenberg, RC (Roland) 4 0.0 0 0 4 0.0 1453.9 -425.0 1028.9 View list
10 1110108081 Muller, H (Helgard) 3 3.0 3 0 0 100.0 1394.9 425.0 1819.9 View list
11 1120132089 Russell, C (Christopher) 3 3.0 3 0 0 100.0 1372.7 425.0 1797.7 View list
12 2110109830 Snyman, MM (Mila Marie) 3 1.0 1 0 2 33.3 1370.5 -141.7 1228.8 View list
13 1140136551 Resnekov, O (Oliver) 3 0.0 0 0 3 0.0 1448.3 -425.0 1023.3 View list
14 1110132058 Braaf, J (Jordan) 2 2.0 2 0 0 100.0 1429.6 425.0 1854.6 View list
15 1120150391 Dennis, N (Nathier) 2 2.0 2 0 0 100.0 1426.1 425.0 1851.1 View list
16 1140134075 Donker, J (Jesse) 2 2.0 2 0 0 100.0 1326.3 425.0 1751.3 View list
17 108087782 Jonkers, T (Tristan) 2 2.0 2 0 0 100.0 1557.0 425.0 1982.0 View list
18 107064487 Lee, MJ (Muhammad) 2 2.0 2 0 0 100.0 1483.8 425.0 1908.8 View list
19 1130135088 Meder, T (Tristan) 2 2.0 2 0 0 100.0 1439.7 425.0 1864.7 View list
20 1090109869 Priestley, L (Logan) 2 2.0 2 0 0 100.0 1412.1 425.0 1837.1 View list