Player Page

Nortje, O (Owen)
Dob: 2014/01/08 (U12)
Gender: Male
Chess SA id: 1140153987
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (38 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 rating1215.8
Current Weighted rating1205.7
Current Weighted performance1152.5
Current official/published rating (highest between Raw, WR and WP)1215.8
Current highest rating achieved1231.6
Current floor (min rating allowed)731.6
Current K-factor36
Games played this month5
Score (S)2.5
Expected score (We)2.56
Difference (S-We)-0.05
Current Raw change (no limits, including tournament time weight)-1.8
Current min/max change allowed (with limits)±162.1
Current Raw change used (final)-1.8
Projected new Raw rating1214.0
Projected new Weighed rating1109.5
Projected new Weighted performance1170.5
Projected new final Raw rating (if new WP > new Raw)1214.0
Projected new highest rating1231.6
Projected new floor731.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1214.0
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 rating1170.8
Current Weighted rating1185.9
Current Weighted performance1082.4
Current official/published rating (highest between Raw, WR and WP)1185.9
Current highest rating achieved1209.7
Current floor (min rating allowed)709.7
Current K-factor36
Games played this month5
Score (S)2.5
Expected score (We)2.28
Difference (S-We)0.22
Current Raw change (no limits, including tournament time weight)7.9
Current min/max change allowed (with limits)±172.9
Current Raw change used (final)7.9
Projected new Raw rating1178.7
Projected new Weighed rating1090.6
Projected new Weighted performance1121.0
Projected new final Raw rating (if new WP > new Raw)1178.7
Projected new highest rating1209.7
Projected new floor709.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1178.7
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 rating1279.9
Current Weighted rating1234.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1279.9
Current highest rating achieved1279.9
Current floor (min rating allowed)779.9
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)±148.0
Current Raw change used (final)0.0
Projected new Raw rating1279.9
Projected new Weighed rating1136.4
Projected new Weighted performance1007.1
Projected new final Raw rating (if new WP > new Raw)1279.9
Projected new highest rating1279.9
Projected new floor779.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1279.9
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
Tournament: Ekurhuleni North Primary Schools District Individual Finals 2024 (U11 Boys)
Start: 2024/05/11  End: 2024/05/11  Host: GE  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 2.5
Main rating: 1215.8  Rating gain/loss: -1.8
Type rating: 1170.8  Rating gain/loss: 7.9
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Ekurhuleni North Primary Schools District Individual Finals 2024 (U11 Boys) 2024/05/11 2024/05/11 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1215.8 1170.8 Analysis
2 Westwood Open 2024 (C) 2024/04/13 2024/04/13 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1231.6 1182.3 Analysis
1 Benoni Primary School Cluster Individuals 2024 (U11 Boys) 2024/03/09 2024/03/09 Ekurhuleni (GE) Rapid 30 0.60 5 5 4.0 1198.3 1230.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
9 Ekurhuleni North Primary Schools District Individual Finals 2024 (U11 Boys) 2024/05/11 2024/05/11 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1215.8 1170.8 Analysis
8 Westwood Open 2024 (C) 2024/04/13 2024/04/13 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1231.6 1182.3 Analysis
7 Benoni Primary School Cluster Individuals 2024 (U11 Boys) 2024/03/09 2024/03/09 Ekurhuleni (GE) Rapid 30 0.60 5 5 4.0 1198.3 1230.6 Analysis
6 2023 Gauteng Noord (E) 2023/10/14 2023/10/14 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1229.8 1209.7 Analysis
5 2023 Tuks Open Chess Tournament (E+F) 2023/10/07 2023/10/07 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1229.8 1209.7 Analysis
4 Chess Molecules Rapid 2023 (Grade 3+4) 2023/09/23 2023/09/23 Ekurhuleni (GE) Rapid 30 0.60 5 5 3.0 1222.2 1222.0 Analysis
3 Chess Power House 2023 (C) 2023/08/19 2023/08/19 Johannesburg Metro (GJM) Standard 90 0.94 5 5 3.0 1200.5 1182.7 Analysis
2 Chess Molecules 16 June Tournament 2023 (Grade 3+4) 2023/06/16 2023/06/16 Ekurhuleni (GE) Rapid 30 0.60 5 5 3.0 1185.4 1200.0 Analysis
1 Alberton Chess Club Tournament 1 2023 (D) 2023/04/15 2023/04/15 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 15 8 1 6 8.5 56.7 56.7 1211.4 1268.1
White 7 3 0 4 3.0 42.9 -60.7 1199.0 1138.3
Black 8 5 1 2 5.5 68.8 159.4 1222.2 1381.6
Standard All 10 4 1 5 4.5 45.0 -42.5 1217.1 1174.6
White 5 2 0 3 2.0 40.0 -85.0 1198.6 1113.6
Black 5 2 1 2 2.5 50.0 0.0 1235.6 1235.6
Rapid All 5 4 0 1 4.0 80.0 255.0 1200.0 1455.0
White 2 1 0 1 1.0 50.0 0.0 1200.0 1200.0
Black 3 3 0 0 3.0 100.0 425.0 1200.0 1625.0
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 45 23 1 21 23.5 52.2 18.9 1215.4 1234.3
White 22 12 0 10 12.0 54.5 38.6 1203.3 1241.9
Black 23 11 1 11 11.5 50.0 0.0 1227.0 1227.0
Standard All 30 13 1 16 13.5 45.0 -42.5 1220.3 1177.8
White 15 7 0 8 7.0 46.7 -28.3 1197.7 1169.4
Black 15 6 1 8 6.5 43.3 -56.7 1242.9 1186.3
Rapid All 15 10 0 5 10.0 66.7 141.7 1205.6 1347.2
White 7 5 0 2 5.0 71.4 182.1 1215.2 1397.4
Black 8 5 0 3 5.0 62.5 106.3 1197.1 1303.4
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 1140301240 Nortje, W (Wesley) 2 2.0 2 0 0 100.0 1214.9 425.0 1639.9 View list
2 2150147100 Dixon, G (Genevieve) 2 1.0 1 0 1 50.0 1229.8 0.0 1229.8 View list
3 1160153976 Benjamin, L (Liyabona) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 1140156646 Arthur, Z (Zachary) 1 1.0 1 0 0 100.0 1222.2 425.0 1647.2 View list
5 1140146675 Brown, L (Luke William) 1 1.0 1 0 0 100.0 1185.4 425.0 1610.4 View list
6 1140157237 Dada, A (Aliyah) 1 1.0 1 0 0 100.0 1185.4 425.0 1610.4 View list
7 1140155132 Farah, T (Tyler) 1 1.0 1 0 0 100.0 1185.4 425.0 1610.4 View list
8 1130162423 Igwe, M (Maryann) 1 1.0 1 0 0 100.0 1222.2 425.0 1647.2 View list
9 2130153980 Hatton, E (Emma) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 1120160689 Khumalo, J (Jama) 1 1.0 1 0 0 100.0 1200.5 425.0 1625.5 View list
11 1140305664 Mabunda, S (Sibusiso) 1 1.0 1 0 0 100.0 1215.8 425.0 1640.8 View list
12 2150162780 Marais, L (Leja) 1 1.0 1 0 0 100.0 1229.8 425.0 1654.8 View list
13 1140151769 Mbele, A (Amahle) 1 1.0 1 0 0 100.0 1222.2 425.0 1647.2 View list
14 1140305671 Mdletshe, M (Malibongwe) 1 1.0 1 0 0 100.0 1215.8 425.0 1640.8 View list
15 2140155181 Mendonca, N (Nelita) 1 1.0 1 0 0 100.0 1231.6 425.0 1656.6 View list
16 1140160692 Mhlubulwana, K (Khanyisile) 1 1.0 1 0 0 100.0 1200.5 425.0 1625.5 View list
17 1140301239 Nortje, L (Luke) 1 1.0 1 0 0 100.0 1198.3 425.0 1623.3 View list
18 1150152286 Rahlaga, K (Kaelo Alupheli) 1 1.0 1 0 0 100.0 1229.8 425.0 1654.8 View list
19 1140301246 Scholtz, E (Edmund) 1 1.0 1 0 0 100.0 1198.3 425.0 1623.3 View list
20 1120160699 Sibiya, A (Amahle) 1 1.0 1 0 0 100.0 1200.5 425.0 1625.5 View list