Player Page

Nelson, OS (Olenka Shai)
Dob: 2007/11/01 (U18)
Gender: Female
Chess SA id: 2070096496
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/04/06 (39 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 rating1120.4
Curent Weighted rating1127.3
Curent Weighted performance911.5
Current official/published rating (highest between Raw, WR and WP)1127.3
Current floor (min rating allowed)645.4
Current highest rating achieved1145.4
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)±185.7
Current Raw change used (final)0.0
Projected new Raw rating1120.4
Projected new Weighed rating1126.4
Projected new Weighted performance911.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1126.4
Projected effective change (new Official - current Official)-1.0
Projected new highest rating1145.4
Projected new floor645.4
Projected new K-facor40
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 rating1064.0
Curent Weighted rating1083.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1083.8
Current floor (min rating allowed)601.6
Current highest rating achieved1101.6
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)±201.3
Current Raw change used (final)0.0
Projected new Raw rating1064.0
Projected new Weighed rating1081.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1081.8
Projected effective change (new Official - current Official)-2.0
Projected new highest rating1101.6
Projected new floor601.6
Projected new K-facor40
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 rating1223.9
Curent Weighted rating1216.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1223.9
Current floor (min rating allowed)723.9
Current highest rating achieved1223.9
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)±160.3
Current Raw change used (final)0.0
Projected new Raw rating1223.9
Projected new Weighed rating1216.9
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1223.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1223.9
Projected new floor723.9
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)723.9
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 floor723.9
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 Cape Town Junior League Qualifier 2024 (U18 Open) 2024/04/06 2024/04/06 Cape Town (WCT) Rapid 25 0.54 6 4 2.0 1102.3 1215.6 Analysis
1 Cape Town Open Chess Championship 2024 (Beginner) 2024/03/16 2024/03/17 Cape Town (WCT) Standard 70 0.87 6 6 2.0 1127.0 1084.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 Cape Town Junior League Qualifier 2024 (U18 Open) 2024/04/06 2024/04/06 Cape Town (WCT) Rapid 25 0.54 6 4 2.0 1102.3 1215.6 Analysis
4 Cape Town Open Chess Championship 2024 (Beginner) 2024/03/16 2024/03/17 Cape Town (WCT) Standard 70 0.87 6 6 2.0 1127.0 1084.4 Analysis
3 Cape Town Open 2023 (Intermediate) 2023/03/25 2023/03/26 Cape Town (WCT) Standard 70 0.87 6 5 1.0 1145.4 1101.6 Analysis
2 Stellenbosch Primary 2018 (U12) 2018/09/15 2018/09/15 Cape Winelands (WCW) Rapid 30 0.60 7 6 4.0 1118.3 1200.0 Analysis
1 District East Schools Chess Open Trials 2018 (U11) 2018/02/02 2018/02/03 Cape Town (WCT) Standard 60 0.83 6 5 1.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 4 0 6 4.0 40.0 -85.0 1220.8 1135.8
White 6 3 0 3 3.0 50.0 0.0 1241.5 1241.5
Black 4 1 0 3 1.0 25.0 -212.5 1189.8 977.3
Standard All 6 2 0 4 2.0 33.3 -141.7 1167.8 1026.1
White 3 2 0 1 2.0 66.7 141.7 1172.9 1314.5
Black 3 0 0 3 0.0 0.0 -425.0 1162.7 737.7
Rapid All 4 2 0 2 2.0 50.0 0.0 1300.5 1300.5
White 3 1 0 2 1.0 33.3 -141.7 1310.2 1168.5
Black 1 1 0 0 1.0 100.0 425.0 1271.4 1696.4
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 26 10 0 16 10.0 38.5 -98.1 1160.2 1062.2
White 14 6 0 8 6.0 42.9 -60.7 1106.8 1046.1
Black 12 4 0 8 4.0 33.3 -141.7 1222.6 1080.9
Standard All 16 4 0 12 4.0 25.0 -212.5 1133.8 921.3
White 8 3 0 5 3.0 37.5 -106.3 1033.3 927.1
Black 8 1 0 7 1.0 12.5 -318.8 1234.2 915.5
Rapid All 10 6 0 4 6.0 60.0 85.0 1202.6 1287.6
White 6 3 0 3 3.0 50.0 0.0 1204.8 1204.8
Black 4 3 0 1 3.0 75.0 212.5 1199.3 1411.8
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 2080101938 Hamann, A (Annika) 1 1.0 1 0 0 100.0 1118.3 425.0 1543.3 View list
2 2070106483 Dafeti, D (Tumisang) 1 1.0 1 0 0 100.0 1118.3 425.0 1543.3 View list
3 2080301949 Cronje, T (Taytan) 1 1.0 1 0 0 100.0 1102.3 425.0 1527.3 View list
4 1120140723 Chamberlain, E (Eduan) 1 1.0 1 0 0 100.0 1127.0 425.0 1552.0 View list
5 2070096500 Julies, J (Jodi) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 2030148275 Kraai, T (Thamsanqa) 1 1.0 1 0 0 100.0 1145.4 425.0 1570.4 View list
7 1100150490 Koopstadt, T (Tristan) 1 1.0 1 0 0 100.0 1127.0 425.0 1552.0 View list
8 1090138622 Pape, J (Joshua) 1 1.0 1 0 0 100.0 1102.3 425.0 1527.3 View list
9 1080106479 Rossouw, AJ (Aj) 1 1.0 1 0 0 100.0 1118.3 425.0 1543.3 View list
10 1070101953 Samson, G (Grant) 1 1.0 1 0 0 100.0 1118.3 425.0 1543.3 View list
11 2090141163 Roto, A (Ahluma) 1 0.0 0 0 1 0.0 1127.0 -425.0 702.0 View list
12 1070106477 Rasdelhoff, J (Jordan) 1 0.0 0 0 1 0.0 1118.3 -425.0 693.3 View list
13 1830136261 Magwaza, R (Richard) 1 0.0 0 0 1 0.0 1145.4 -425.0 720.4 View list
14 1080137511 Louw, B (Ben) 1 0.0 0 0 1 0.0 1145.4 -425.0 720.4 View list
15 1080097960 Kruger, D (Daniel) 1 0.0 0 0 1 0.0 1102.3 -425.0 677.3 View list
16 1080193698 Koetser, J (Joshua) 1 0.0 0 0 1 0.0 1127.0 -425.0 702.0 View list
17 1080157942 Koegelenberg, U (Ulrich) 1 0.0 0 0 1 0.0 1127.0 -425.0 702.0 View list
18 107064703 Hess, H (Heinrich) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
19 207094666 Green, T (Tiana) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 2080109012 Gebu, S (Sisipho) 1 0.0 0 0 1 0.0 1145.4 -425.0 720.4 View list