Player Page

Rosenberg, Z (Zachary)
Dob: 2008/01/25 (U18)
Gender: Male
Chess SA id: 108069276
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2019/09/22 (1699 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 rating1220.8
Curent Weighted rating1220.8
Curent Weighted performance474.7
Current official/published rating (highest between Raw, WR and WP)1220.8
Current floor (min rating allowed)777.5
Current highest rating achieved1277.5
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)±161.0
Current Raw change used (final)0.0
Projected new Raw rating1220.8
Projected new Weighed rating1220.8
Projected new Weighted performance474.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1220.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1277.5
Projected new floor777.5
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 rating1199.2
Curent Weighted rating1199.2
Curent Weighted performance468.8
Current official/published rating (highest between Raw, WR and WP)1199.2
Current floor (min rating allowed)765.1
Current highest rating achieved1265.1
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)±166.0
Current Raw change used (final)0.0
Projected new Raw rating1199.2
Projected new Weighed rating1199.2
Projected new Weighted performance468.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1199.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1265.1
Projected new floor765.1
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 rating756.8
Curent Weighted rating756.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)756.8
Current floor (min rating allowed)500.0
Current highest rating achieved756.8
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)±311.8
Current Raw change used (final)0.0
Projected new Raw rating756.8
Projected new Weighed rating756.8
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)756.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating756.8
Projected new floor500.0
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 rating756.8
Curent Weighted rating756.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)756.8
Current floor (min rating allowed)500.0
Current highest rating achieved756.8
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)±311.8
Current Raw change used (final)0.0
Projected new Raw rating756.8
Projected new Weighed rating756.8
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)756.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating756.8
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
11 2019 Western Cape Closed Chess Championships (D) 2019/09/21 2019/09/22 Cape Winelands (WCW) Standard 70 0.87 6 6 3.0 1243.4 1225.1 Analysis
10 Curro Durbanville Chess Tournament 2019 (Premier) 2019/08/23 2019/08/24 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1277.5 1265.1 Analysis
9 Stellenberg Youth Chess Championship 2019 (D) 2019/05/01 2019/05/01 Cape Town (WCT) Standard 60 0.83 5 5 4.0 1204.2 1206.6 Analysis
8 Metro School Chess Closed Individual Trials 2019 (U11 Boys) 2019/03/01 2019/03/02 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1203.0 1203.7 Analysis
7 2019 Central District Schools Trials (U11) 2019/02/01 2019/02/02 Cape Town (WCT) Standard 60 0.83 6 5 3.0 1166.1 1162.1 Analysis
6 Paul Roos Open Championship 2018 (C) 2018/09/22 2018/09/23 Cape Winelands (WCW) Standard 70 0.87 6 6 4.0 1130.3 1120.9 Analysis
5 Stellenberg Youth Chess Champs 2018 (C) 2018/06/22 2018/06/23 Cape Town (WCT) Standard 60 0.83 6 6 4.0 1003.5 1026.4 Analysis
4 Western Cape Schools Individuals 2018 (U11 Boys) 2018/05/19 2018/05/20 Overberg (WOS) Standard 60 0.83 6 6 3.0 948.1 972.4 Analysis
3 2018 WP Schools Closed Trials (U11 Boys) 2018/03/09 2018/03/10 Cape Town (WCT) Standard 60 0.83 6 6 4.0 890.3 909.6 Analysis
2 2018 Central District Trials (U11) 2018/02/02 2018/02/03 Cape Town (WCT) Standard 60 0.83 6 6 4.0 796.0 796.0 Analysis
1 South African Junior Team Championships 2017 (U10B) 2018/01/04 2018/01/08 4 Knights (4K) Standard 120 1.00 7 6 4.5 756.8 756.8 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 64 39 1 24 39.5 61.7 99.6 1088.4 1188.1
White 32 22 0 10 22.0 68.8 159.4 1068.8 1228.1
Black 32 17 1 14 17.5 54.7 39.8 1108.1 1148.0
Standard All 64 39 1 24 39.5 61.7 99.6 1088.4 1188.1
White 32 22 0 10 22.0 68.8 159.4 1068.8 1228.1
Black 32 17 1 14 17.5 54.7 39.8 1108.1 1148.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 108087010 Viljoen, W (Wynand) 2 2.0 2 0 0 100.0 1260.5 425.0 1685.5 View list
2 108091526 Lau, C (Callum) 2 1.0 1 0 1 50.0 1203.6 0.0 1203.6 View list
3 108061372 Baruch, L (Liam) 2 0.0 0 0 2 0.0 981.0 -425.0 556.0 View list
4 109086201 Hattingh, E (Eckhard) 1 1.0 1 0 0 100.0 756.8 425.0 1181.8 View list
5 1090108384 Hashim, E (Eesa) 1 1.0 1 0 0 100.0 1166.1 425.0 1591.1 View list
6 104082184 Kleynhans, T (Teon) 1 1.0 1 0 0 100.0 1003.5 425.0 1428.5 View list
7 107093481 Chen, P (Po-Hao) 1 1.0 1 0 0 100.0 890.3 425.0 1315.3 View list
8 108084451 Cronje, NM (Nicolaas Mattheus) 1 1.0 1 0 0 100.0 756.8 425.0 1181.8 View list
9 1080108388 Appoles, R (Rayaan) 1 1.0 1 0 0 100.0 1166.1 425.0 1591.1 View list
10 204073350 Adams, A (Atiyyah) 1 1.0 1 0 0 100.0 1243.4 425.0 1668.4 View list
11 2100103576 Lackay, L (Leane) 1 1.0 1 0 0 100.0 1130.3 425.0 1555.3 View list
12 286088260 Lange, C (Candice) 1 1.0 1 0 0 100.0 1130.3 425.0 1555.3 View list
13 107085509 Li, T (Traynor) 1 1.0 1 0 0 100.0 1204.2 425.0 1629.2 View list
14 104072643 Madolo, S (Siyolise) 1 1.0 1 0 0 100.0 1130.3 425.0 1555.3 View list
15 1000099743 Maroem, D (Dyran) 1 1.0 1 0 0 100.0 948.1 425.0 1373.1 View list
16 107094988 Matthews, L (Luke) 1 1.0 1 0 0 100.0 796.0 425.0 1221.0 View list
17 1070096086 Millar, R (Ryan) 1 1.0 1 0 0 100.0 796.0 425.0 1221.0 View list
18 108087015 Nieuwoudt, H (Hein) 1 1.0 1 0 0 100.0 1203.0 425.0 1628.0 View list
19 210088278 Nieuwoudt, N (Noreht) 1 1.0 1 0 0 100.0 1003.5 425.0 1428.5 View list
20 1070096372 October, N (Nathaan) 1 1.0 1 0 0 100.0 890.3 425.0 1315.3 View list