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: 2024/04/13 (40 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 rating1215.8
Curent Weighted rating1204.6
Curent Weighted performance1163.3
Current official/published rating (highest between Raw, WR and WP)1215.8
Current floor (min rating allowed)731.6
Current highest rating achieved1231.6
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)±162.1
Current Raw change used (final)0.0
Projected new Raw rating1215.8
Projected new Weighed rating1205.7
Projected new Weighted performance1163.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1215.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1231.6
Projected new floor731.6
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 rating1170.8
Curent Weighted rating1187.5
Curent Weighted performance1089.7
Current official/published rating (highest between Raw, WR and WP)1187.5
Current floor (min rating allowed)709.7
Current highest rating achieved1209.7
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)±172.9
Current Raw change used (final)0.0
Projected new Raw rating1170.8
Projected new Weighed rating1185.9
Projected new Weighted performance1089.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1185.9
Projected effective change (new Official - current Official)-1.7
Projected new highest rating1209.7
Projected new floor709.7
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 rating1279.9
Curent Weighted rating1229.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1279.9
Current floor (min rating allowed)779.9
Current highest rating achieved1279.9
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 rating1234.1
Projected new Weighted performance0.0
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
Projected new highest rating1279.9
Projected new floor779.9
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)779.9
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 floor779.9
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
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
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 10 6 0 4 6.0 60.0 85.0 1217.1 1302.1
White 5 2 0 3 2.0 40.0 -85.0 1198.6 1113.6
Black 5 4 0 1 4.0 80.0 255.0 1235.6 1490.6
Standard All 5 2 0 3 2.0 40.0 -85.0 1234.2 1149.2
White 3 1 0 2 1.0 33.3 -141.7 1197.7 1056.0
Black 2 1 0 1 1.0 50.0 0.0 1288.9 1288.9
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 40 21 0 19 21.0 52.5 21.3 1217.3 1238.6
White 20 11 0 9 11.0 55.0 42.5 1203.6 1246.1
Black 20 10 0 10 10.0 50.0 0.0 1231.0 1231.0
Standard All 25 11 0 14 11.0 44.0 -51.0 1224.4 1173.4
White 13 6 0 7 6.0 46.2 -32.7 1197.4 1164.7
Black 12 5 0 7 5.0 41.7 -70.8 1253.6 1182.8
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 2150162780 Marais, L (Leja) 1 1.0 1 0 0 100.0 1229.8 425.0 1654.8 View list
12 1140151769 Mbele, A (Amahle) 1 1.0 1 0 0 100.0 1222.2 425.0 1647.2 View list
13 2140155181 Mendonca, N (Nelita) 1 1.0 1 0 0 100.0 1231.6 425.0 1656.6 View list
14 1140160692 Mhlubulwana, K (Khanyisile) 1 1.0 1 0 0 100.0 1200.5 425.0 1625.5 View list
15 1140301239 Nortje, L (Luke) 1 1.0 1 0 0 100.0 1198.3 425.0 1623.3 View list
16 1150152286 Rahlaga, K (Kaelo Alupheli) 1 1.0 1 0 0 100.0 1229.8 425.0 1654.8 View list
17 1140301246 Scholtz, E (Edmund) 1 1.0 1 0 0 100.0 1198.3 425.0 1623.3 View list
18 1120160699 Sibiya, A (Amahle) 1 1.0 1 0 0 100.0 1200.5 425.0 1625.5 View list
19 1140301251 Van Jaarsveld, J (Jayden) 1 1.0 1 0 0 100.0 1198.3 425.0 1623.3 View list
20 2150157433 Westermann, I (Inge) 1 1.0 1 0 0 100.0 1229.8 425.0 1654.8 View list