Player Page

Mackay, Z (Ziya)
Dob: 2005/09/28 (U20)
Gender: Female
Chess SA id: 2050117220
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2021/09/06 (1020 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 rating1114.6
Current Weighted rating1114.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1114.6
Current highest rating achieved1203.3
Current floor (min rating allowed)703.3
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)±187.3
Current Raw change used (final)0.0
Projected new Raw rating1114.6
Projected new Weighed rating1025.4
Projected new Weighted performance440.8
Projected new final Raw rating (if new WP > new Raw)1114.6
Projected new highest rating1203.3
Projected new floor703.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1114.6
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 rating1129.4
Current Weighted rating1129.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1129.4
Current highest rating achieved1203.2
Current floor (min rating allowed)703.2
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)±183.4
Current Raw change used (final)0.0
Projected new Raw rating1129.4
Projected new Weighed rating1039.0
Projected new Weighted performance337.9
Projected new final Raw rating (if new WP > new Raw)1129.4
Projected new highest rating1203.2
Projected new floor703.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1129.4
Projected effective change (new Official - current Official)=0.0
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 rating1090.0
Current Weighted rating1090.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1090.0
Current highest rating achieved1090.0
Current floor (min rating allowed)590.0
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)±193.9
Current Raw change used (final)0.0
Projected new Raw rating1090.0
Projected new Weighed rating1002.8
Projected new Weighted performance198.7
Projected new final Raw rating (if new WP > new Raw)1090.0
Projected new highest rating1090.0
Projected new floor590.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1090.0
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.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 JMC Helpmekaar 2021 (U18) 2021/09/06 2021/09/06 Johannesburg Metro (GJM) Rapid 30 0.60 5 4 0.0 1137.9 1200.0 Analysis
3 2019 Gauteng School League Finals (U15 Girls) 2019/08/24 2019/08/24 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1203.3 1203.2 Analysis
2 ChessExcellence Crawford Lonehill Club 2019 2019/08/21 2019/08/28 Chess Excellence (CEX) Standard 60 0.83 6 6 2.0 1203.3 1203.2 Analysis
1 JHB North High School League 2019 2019/02/19 2019/07/22 Chess Excellence (CEX) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
Standard 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
Rapid 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
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 20 7 0 13 7.0 35.0 -127.5 1179.9 1052.4
White 9 4 0 5 4.0 44.4 -47.2 1137.3 1090.1
Black 11 3 0 8 3.0 27.3 -193.2 1214.8 1021.6
Standard All 16 7 0 9 7.0 43.8 -53.1 1139.7 1086.6
White 7 4 0 3 4.0 57.1 60.7 1088.5 1149.2
Black 9 3 0 6 3.0 33.3 -141.7 1179.5 1037.8
Rapid All 4 0 0 4 0.0 0.0 -425.0 1340.9 915.9
White 2 0 0 2 0.0 0.0 -425.0 1308.3 883.3
Black 2 0 0 2 0.0 0.0 -425.0 1373.5 948.5
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 2050118293 Duwarka, IJ (Ishka Jo-Anne) 1 1.0 1 0 0 100.0 1203.3 425.0 1628.3 View list
2 1040117216 Dibete, B (Boitumelo) 1 1.0 1 0 0 100.0 1203.3 425.0 1628.3 View list
3 102004009 Butkow, B (Brent) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 102080939 Ndoroo, S (Sean) 1 1.0 1 0 0 100.0 1203.3 425.0 1628.3 View list
5 1070114236 Ndlovu, T (Tivo) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 2060118283 Mabena, T (Thembekile) 1 1.0 1 0 0 100.0 1203.3 425.0 1628.3 View list
7 1020117205 Ramphenyane, T (Takatso) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 105044908 Xiao, R (Ryan) 1 0.0 0 0 1 0.0 1137.9 -425.0 712.9 View list
9 101044637 Ward, J (Joshua) 1 0.0 0 0 1 0.0 1203.3 -425.0 778.3 View list
10 205058615 Tiawoun, O (Oneyda) 1 0.0 0 0 1 0.0 1203.3 -425.0 778.3 View list
11 1050134892 Shubham, K (Kale) 1 0.0 0 0 1 0.0 1137.9 -425.0 712.9 View list
12 205031170 Prinsloo, TE (Thiana) 1 0.0 0 0 1 0.0 1203.3 -425.0 778.3 View list
13 105092236 Njoku, W (Wisdom) 1 0.0 0 0 1 0.0 1137.9 -425.0 712.9 View list
14 104056084 Lipschitz, L (Levi) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
15 104092802 Jordan, J (John) 1 0.0 0 0 1 0.0 1137.9 -425.0 712.9 View list
16 1050118491 Naidoo, S (Sashen) 1 0.0 0 0 1 0.0 1203.3 -425.0 778.3 View list
17 2040105871 Muravha, N (Nbiwana) 1 0.0 0 0 1 0.0 1203.3 -425.0 778.3 View list
18 2050103904 Malhotra, R (Rhea) 1 0.0 0 0 1 0.0 1203.3 -425.0 778.3 View list
19 1050117206 Madolo, S (Sozi) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 103088492 Baliraj, S (Sanjeev) 1 0.0 0 0 1 0.0 1203.3 -425.0 778.3 View list