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: 2024/09/07 (85 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 rating1347.1
Current Weighted rating1345.2
Current Weighted performance1231.7
Current official/published rating (highest between Raw, WR and WP)1347.1
Current highest rating achieved1393.0
Current floor (min rating allowed)893.0
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)±134.5
Current Raw change used (final)0.0
Projected new Raw rating1347.1
Projected new Weighed rating1239.6
Projected new Weighted performance1231.7
Projected new final Raw rating (if new WP > new Raw)1347.1
Projected new highest rating1393.0
Projected new floor893.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1347.1
Projected effective change (new Official - current Official)=0.0
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 rating1310.7
Current Weighted rating1317.8
Current Weighted performance1210.0
Current official/published rating (highest between Raw, WR and WP)1317.8
Current highest rating achieved1368.3
Current floor (min rating allowed)868.3
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)±141.6
Current Raw change used (final)0.0
Projected new Raw rating1310.7
Projected new Weighed rating1213.9
Projected new Weighted performance1210.0
Projected new final Raw rating (if new WP > new Raw)1310.7
Projected new highest rating1368.3
Projected new floor868.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1310.7
Projected effective change (new Official - current Official)-7.1
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 rating1366.1
Current Weighted rating1322.9
Current Weighted performance1305.4
Current official/published rating (highest between Raw, WR and WP)1366.1
Current highest rating achieved1366.1
Current floor (min rating allowed)866.1
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)±130.9
Current Raw change used (final)0.0
Projected new Raw rating1366.1
Projected new Weighed rating1219.5
Projected new Weighted performance1305.4
Projected new final Raw rating (if new WP > new Raw)1366.1
Projected new highest rating1366.1
Projected new floor866.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1366.1
Projected effective change (new Official - current Official)=0.0
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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 rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
9 CT League 2024 (D) 2024/08/03 2024/08/03 Cape Town (WCT) Standard 70 0.87 6 3 1.0 1319.1 1275.8 Analysis
8 CT Metro District East Top Schools Chess 2024 (U18 Mixed) 2024/07/27 2024/07/28 Cape Town (WCT) Standard 60 0.83 7 6 1.0 1377.7 1342.4 Analysis
7 CT League 2024 (C) 2024/07/20 2024/09/07 Cape Town (WCT) Standard 120 1.00 11 3 2.0 1319.1 1275.8 Analysis
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
18 CT League 2024 (D) 2024/08/03 2024/08/03 Cape Town (WCT) Standard 70 0.87 6 3 1.0 1319.1 1275.8 Analysis
17 CT Metro District East Top Schools Chess 2024 (U18 Mixed) 2024/07/27 2024/07/28 Cape Town (WCT) Standard 60 0.83 7 6 1.0 1377.7 1342.4 Analysis
16 CT League 2024 (C) 2024/07/20 2024/09/07 Cape Town (WCT) Standard 120 1.00 11 3 2.0 1319.1 1275.8 Analysis
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 45 25 3 17 26.5 58.9 75.6 1286.6 1362.1
White 24 15 2 7 16.0 66.7 141.7 1279.7 1421.4
Black 21 10 1 10 10.5 50.0 0.0 1294.5 1294.5
Standard All 35 17 2 16 18.0 51.4 12.1 1302.6 1314.7
White 18 10 2 6 11.0 61.1 94.4 1303.8 1398.3
Black 17 7 0 10 7.0 41.2 -75.0 1301.2 1226.2
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 95 54 5 36 56.5 59.5 80.5 1295.1 1375.6
White 50 29 4 17 31.0 62.0 102.0 1295.3 1397.3
Black 45 25 1 19 25.5 56.7 56.7 1294.9 1351.6
Standard All 57 32 2 23 33.0 57.9 67.1 1289.4 1356.5
White 30 18 2 10 19.0 63.3 113.3 1294.7 1408.0
Black 27 14 0 13 14.0 51.9 15.7 1283.5 1299.2
Rapid All 38 22 3 13 23.5 61.8 100.7 1303.6 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 1060193441 Aphile, M (Matinise) 1 1.0 1 0 0 100.0 1367.0 425.0 1792.0 View list
7 1080150201 Beni, I (Inathi) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 1080162366 Craig, C (Connor) 1 1.0 1 0 0 100.0 1373.2 425.0 1798.2 View list
9 1070162696 Comitis, G (Gabriel) 1 1.0 1 0 0 100.0 1355.4 425.0 1780.4 View list
10 183005400 Combrink, FC (Frederik) 1 1.0 1 0 0 100.0 1297.2 425.0 1722.2 View list
11 208061417 Botha, L (Lika) 1 1.0 1 0 0 100.0 1355.4 425.0 1780.4 View list
12 1080157058 Ferreira, M (Marko) 1 1.0 1 0 0 100.0 1202.7 425.0 1627.7 View list
13 2130137739 Fani, K (Khazimla) 1 1.0 1 0 0 100.0 1350.0 425.0 1775.0 View list
14 210090620 Goliath, E (Eugeney) 1 1.0 1 0 0 100.0 1261.3 425.0 1686.3 View list
15 1060108789 Groenewald, J (Jayden) 1 1.0 1 0 0 100.0 1377.7 425.0 1802.7 View list
16 1090150199 Abrahams, D (Dante) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
17 1110150425 Haman, R (Rico) 1 1.0 1 0 0 100.0 1297.2 425.0 1722.2 View list
18 1110157085 Jansen, R (Riley) 1 1.0 1 0 0 100.0 1319.1 425.0 1744.1 View list
19 1100118917 Jawoodien, A (Aziz) 1 1.0 1 0 0 100.0 1274.1 425.0 1699.1 View list
20 1010137734 Kilawushe, I (Inganathi) 1 1.0 1 0 0 100.0 1350.0 425.0 1775.0 View list