Player Page

Van Der Berg, Z (Zack)
Dob: 2007/08/04 (U18)
Gender: Male
Chess SA id: 1070149588
FIDE id:
Region: Bojanala Platina (NBR)
Citizen: RSA
Title(s):
Last active: 2023/08/19 (278 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 rating1336.5
Curent Weighted rating1300.0
Curent Weighted performance1265.0
Current official/published rating (highest between Raw, WR and WP)1336.5
Current floor (min rating allowed)836.5
Current highest rating achieved1336.5
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)±136.5
Current Raw change used (final)0.0
Projected new Raw rating1336.5
Projected new Weighed rating1305.5
Projected new Weighted performance1265.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1336.5
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1336.5
Projected new floor836.5
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 rating1303.6
Curent Weighted rating1280.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1303.6
Current floor (min rating allowed)803.6
Current highest rating achieved1303.6
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)±143.1
Current Raw change used (final)0.0
Projected new Raw rating1303.6
Projected new Weighed rating1284.6
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1303.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1303.6
Projected new floor803.6
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 rating1280.0
Curent Weighted rating1252.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1280.0
Current floor (min rating allowed)780.0
Current highest rating achieved1280.0
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)±148.0
Current Raw change used (final)0.0
Projected new Raw rating1280.0
Projected new Weighed rating1255.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1280.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1280.0
Projected new floor780.0
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)780.0
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 floor780.0
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 Bojanala School League 2023 (U17) 2023/08/19 2023/08/19 Bojanala Platina (NBR) Rapid 40 0.70 5 5 5.0 1286.6 1200.0 Analysis
4 Bojanala's Post-Exams 2023 (Rooks) 2023/06/24 2023/06/24 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1221.5 1224.8 Analysis
3 Olienpark - 2nd One for the Ages 2023 (U18) 2023/05/13 2023/05/13 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 1241.8 1250.7 Analysis
2 Grenswag's Community Battle 2023 (Rooks) 2023/04/22 2023/04/22 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1217.6 1221.2 Analysis
1 One For The Ages 2023 (U18) 2023/02/18 2023/02/18 Bojanala Platina (NBR) 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 25 17 0 8 17.0 68.0 153.0 1242.8 1395.8
White 12 7 0 5 7.0 58.3 70.8 1233.3 1304.1
Black 13 10 0 3 10.0 76.9 228.8 1251.6 1480.5
Standard All 20 12 0 8 12.0 60.0 85.0 1252.7 1337.7
White 9 4 0 5 4.0 44.4 -47.2 1249.8 1202.6
Black 11 8 0 3 8.0 72.7 193.2 1255.1 1448.3
Rapid All 5 5 0 0 5.0 100.0 425.0 1203.1 1628.1
White 3 3 0 0 3.0 100.0 425.0 1183.6 1608.6
Black 2 2 0 0 2.0 100.0 425.0 1232.4 1657.4
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 1100144057 Dikane, O (Oageng) 2 1.0 1 0 1 50.0 1219.5 0.0 1219.5 View list
2 1060149581 Kgaladi, R (Rebaone) 1 1.0 1 0 0 100.0 1286.6 425.0 1711.6 View list
3 1070160013 Kazele, T (Thebe) 1 1.0 1 0 0 100.0 1286.6 425.0 1711.6 View list
4 1070148484 Jonkers, R (Richard) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1070148718 Du Preeze, L (Levin) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 1050109335 Mokoena, T (Thoriso) 1 1.0 1 0 0 100.0 1217.6 425.0 1642.6 View list
7 1060160017 Mogobye, O (Omogolo) 1 1.0 1 0 0 100.0 1286.6 425.0 1711.6 View list
8 1130131229 Changara, A (Alvern Takura) 1 1.0 1 0 0 100.0 1221.5 425.0 1646.5 View list
9 1060149584 Morake, R (Reaoleboga) 1 1.0 1 0 0 100.0 1241.8 425.0 1666.8 View list
10 1790140016 Monamatha, M (Moeketsi) 1 1.0 1 0 0 100.0 1217.6 425.0 1642.6 View list
11 2070136405 Potgieter, F (Frineze) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
12 2060135865 Pedersen, J (Jillian) 1 1.0 1 0 0 100.0 1217.6 425.0 1642.6 View list
13 109088223 Mulder, SL (Stephanus) 1 1.0 1 0 0 100.0 1286.6 425.0 1711.6 View list
14 1100144148 Mphomane, O (Omolemo) 1 1.0 1 0 0 100.0 1221.5 425.0 1646.5 View list
15 108068833 Sera, G (Galaletsang) 1 1.0 1 0 0 100.0 1221.5 425.0 1646.5 View list
16 1050156766 Van Der Westhuizen, J (John Edmund) 1 1.0 1 0 0 100.0 1241.8 425.0 1666.8 View list
17 1060154494 Venter, D (Dian) 1 1.0 1 0 0 100.0 1286.6 425.0 1711.6 View list
18 1060111292 Mphephu, NP (Ntanganedzeni P) 1 0.0 0 0 1 0.0 1221.5 -425.0 796.5 View list
19 1060156765 Palmer, X (Xander) 1 0.0 0 0 1 0.0 1241.8 -425.0 816.8 View list
20 1060140348 Oberholzer, D (Dorian) 1 0.0 0 0 1 0.0 1241.8 -425.0 816.8 View list