Player Page

Jonker, R (Ruan)
Dob: 2008/06/09 (U18)
Gender: Male
Chess SA id: 1080150210
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/05/18 (4 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 rating1393.0
Curent Weighted rating1316.3
Curent Weighted performance1362.1
Current official/published rating (highest between Raw, WR and WP)1393.0
Current floor (min rating allowed)893.0
Current highest rating achieved1393.0
Current K-factor36
Games played this month10
Score (S)6.5
Expected score (We)6.67
Difference (S-We)-0.17
Current Raw change (no limits, including tournament time weight)-15.3
Current min/max change allowed (with limits)±126.0
Current Raw change used (final)-15.3
Projected new Raw rating1377.7
Projected new Weighed rating1324.3
Projected new Weighted performance1362.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1377.7
Projected effective change (new Official - current Official)-15.3
Projected new highest rating1393.0
Projected new floor893.0
Projected new K-facor36
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 rating1368.3
Curent Weighted rating1301.9
Curent Weighted performance1343.9
Current official/published rating (highest between Raw, WR and WP)1368.3
Current floor (min rating allowed)868.3
Current highest rating achieved1368.3
Current K-factor36
Games played this month6
Score (S)3.0
Expected score (We)3.72
Difference (S-We)-0.72
Current Raw change (no limits, including tournament time weight)-25.9
Current min/max change allowed (with limits)±130.5
Current Raw change used (final)-25.9
Projected new Raw rating1342.4
Projected new Weighed rating1308.0
Projected new Weighted performance1343.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1343.9
Projected effective change (new Official - current Official)-24.4
Projected new highest rating1368.3
Projected new floor868.3
Projected new K-facor36
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 rating1338.4
Curent Weighted rating1265.5
Curent Weighted performance1302.9
Current official/published rating (highest between Raw, WR and WP)1338.4
Current floor (min rating allowed)838.4
Current highest rating achieved1338.4
Current K-factor36
Games played this month4
Score (S)3.5
Expected score (We)2.91
Difference (S-We)0.59
Current Raw change (no limits, including tournament time weight)21.2
Current min/max change allowed (with limits)±136.1
Current Raw change used (final)21.2
Projected new Raw rating1359.6
Projected new Weighed rating1274.8
Projected new Weighted performance1302.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1359.6
Projected effective change (new Official - current Official)+21.2
Projected new highest rating1359.6
Projected new floor859.6
Projected new K-facor36
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)838.4
Current highest rating achieved1200.0
Current K-factor36
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1200.0
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 rating1200.0
Projected new floor838.4
Projected new K-facor36
Tournaments
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: 4
Games: 4  Score: 3.5
Main rating: 1393.0  Rating gain/loss: 12.8
Type rating: 1338.4  Rating gain/loss: 21.2
Analysis
Tournament: Steinitz Chess Festival 2024 (Open)
Start: 2024/05/10  End: 2024/05/12  Host: WCT  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 6
Games: 6  Score: 3.0
Main rating: 1393.0  Rating gain/loss: -28.1
Type rating: 1368.3  Rating gain/loss: -25.9
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
6 Cape Town Junior League Finals 2024 (U18 Open A) 2024/05/18 2024/05/18 Cape Town (WCT) Rapid 25 0.54 5 4 3.5 1393.0 1338.4 Analysis
5 Steinitz Chess Festival 2024 (Open) 2024/05/10 2024/05/12 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1393.0 1368.3 Analysis
4 Cape Town Junior League Qualifier 2024 (U18 Open) 2024/04/06 2024/04/06 Cape Town (WCT) Rapid 25 0.54 6 6 5.0 1373.2 1287.3 Analysis
3 Cape Town Open Chess Championship 2024 (Intermediate) 2024/03/16 2024/03/17 Cape Town (WCT) Standard 70 0.87 6 6 5.0 1350.0 1331.0 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 3.0 1350.0 1331.0 Analysis
1 CT District East Schools Chess Individuals Trails 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1367.0 1347.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
15 Cape Town Junior League Finals 2024 (U18 Open A) 2024/05/18 2024/05/18 Cape Town (WCT) Rapid 25 0.54 5 4 3.5 1393.0 1338.4 Analysis
14 Steinitz Chess Festival 2024 (Open) 2024/05/10 2024/05/12 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1393.0 1368.3 Analysis
13 Cape Town Junior League Qualifier 2024 (U18 Open) 2024/04/06 2024/04/06 Cape Town (WCT) Rapid 25 0.54 6 6 5.0 1373.2 1287.3 Analysis
12 Cape Town Open Chess Championship 2024 (Intermediate) 2024/03/16 2024/03/17 Cape Town (WCT) Standard 70 0.87 6 6 5.0 1350.0 1331.0 Analysis
11 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 3.0 1350.0 1331.0 Analysis
10 CT District East Schools Chess Individuals Trails 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1367.0 1347.6 Analysis
9 Kraaifontein Open 2023 (Open) 2023/12/10 2023/12/10 Cape Town (WCT) Rapid 30 0.60 6 6 3.0 1367.4 1283.0 Analysis
8 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 1355.4 1332.5 Analysis
7 Cape Town Junior Chess League Finals 2023 (U16A) 2023/09/16 2023/09/16 Cape Town (WCT) Rapid 25 0.54 7 7 2.5 1297.2 1282.6 Analysis
6 WP Club League 2023 (D PlayOffs) 2023/09/02 2023/09/09 Cape Town (WCT) Standard 70 0.87 5 4 4.0 1297.2 1268.4 Analysis
5 CT Metro District East Top Schools Chess 2023 (U15 Mixed) 2023/07/29 2023/07/29 Cape Town (WCT) Rapid 30 0.60 3 3 1.0 1274.1 1241.2 Analysis
4 Cape Town Junior Chess League - Round 1 2023 (U16A) 2023/07/22 2023/07/22 Cape Town (WCT) Rapid 25 0.54 7 7 5.0 1274.1 1241.2 Analysis
3 Cape Town Junior League 2nd Qualifier 2023 (U16) 2023/06/03 2023/06/03 Cape Town (WCT) Rapid 25 0.54 6 5 3.5 1261.3 1200.0 Analysis
2 Steinitz Open 2023 (C) 2023/05/26 2023/05/28 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1202.7 1198.4 Analysis
1 District East Schools Chess Individual Trials 2023 (U15 Boys) 2023/02/03 2023/02/04 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 33 21 3 9 22.5 68.2 154.5 1242.4 1396.9
White 18 13 2 3 14.0 77.8 236.1 1233.0 1469.2
Black 15 8 1 6 8.5 56.7 56.7 1253.6 1310.2
Standard All 23 13 2 8 14.0 60.9 92.4 1247.4 1339.8
White 12 8 2 2 9.0 75.0 212.5 1245.9 1458.4
Black 11 5 0 6 5.0 45.5 -38.6 1249.1 1210.5
Rapid All 10 8 1 1 8.5 85.0 297.5 1230.7 1528.2
White 6 5 0 1 5.0 83.3 283.3 1207.3 1490.6
Black 4 3 1 0 3.5 87.5 318.8 1265.8 1584.6
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 83 50 5 28 52.5 63.3 112.7 1278.7 1391.4
White 44 27 4 13 29.0 65.9 135.2 1278.3 1413.5
Black 39 23 1 15 23.5 60.3 87.2 1279.2 1366.4
Standard All 45 28 2 15 29.0 64.4 122.8 1257.7 1380.5
White 24 16 2 6 17.0 70.8 177.1 1263.5 1440.5
Black 21 12 0 9 12.0 57.1 60.7 1251.1 1311.8
Rapid All 38 22 3 13 23.5 61.8 100.7 1303.7 1404.3
White 20 11 2 7 12.0 60.0 85.0 1296.1 1381.1
Black 18 11 1 6 11.5 63.9 118.1 1312.1 1430.1
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 1080157920 Philisani, Y (Yamkela) 2 2.0 2 0 0 100.0 1267.7 425.0 1692.7 View list
2 1090130553 Scholtz, T (Triston) 2 2.0 2 0 0 100.0 1383.1 425.0 1808.1 View list
3 1060158262 Daniels, P (Peter) 2 1.5 1 1 0 75.0 1361.6 212.5 1574.1 View list
4 1080153072 Goussard, T (Tiaan) 2 1.0 1 0 1 50.0 1314.3 0.0 1314.3 View list
5 1100142369 Uys, B (Brendan) 2 1.0 1 0 1 50.0 1267.7 0.0 1267.7 View list
6 1090150199 Abrahams, D (Dante) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 1080150201 Beni, I (Inathi) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 1060193441 Aphile, M (Matinise) 1 1.0 1 0 0 100.0 1367.0 425.0 1792.0 View list
9 208061417 Botha, L (Lika) 1 1.0 1 0 0 100.0 1355.4 425.0 1780.4 View list
10 1080162366 Craig, C (Connor) 1 1.0 1 0 0 100.0 1373.2 425.0 1798.2 View list
11 1070162696 Comitis, G (Gabriel) 1 1.0 1 0 0 100.0 1355.4 425.0 1780.4 View list
12 183005400 Combrink, FC (Frederik) 1 1.0 1 0 0 100.0 1297.2 425.0 1722.2 View list
13 1080157058 Ferreira, M (Marko) 1 1.0 1 0 0 100.0 1202.7 425.0 1627.7 View list
14 2130137739 Fani, K (Khazimla) 1 1.0 1 0 0 100.0 1350.0 425.0 1775.0 View list
15 210090620 Goliath, E (Eugeney) 1 1.0 1 0 0 100.0 1261.3 425.0 1686.3 View list
16 1100118917 Jawoodien, A (Aziz) 1 1.0 1 0 0 100.0 1274.1 425.0 1699.1 View list
17 1110150425 Haman, R (Rico) 1 1.0 1 0 0 100.0 1297.2 425.0 1722.2 View list
18 1010137734 Kilawushe, I (Inganathi) 1 1.0 1 0 0 100.0 1350.0 425.0 1775.0 View list
19 2100108991 Leenderts, S (Shanique) 1 1.0 1 0 0 100.0 1274.1 425.0 1699.1 View list
20 198018569 Louw, FWT (Frederik) 1 1.0 1 0 0 100.0 1367.4 425.0 1792.4 View list