Chess South Africa
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Chess South Africa
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
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1336.5
Curent Weighted rating
1300.0
Curent Weighted performance
1265.0
Current official/published rating (highest between Raw, WR and WP)
1336.5
Current floor (min rating allowed)
836.5
Current highest rating achieved
1336.5
Current K-factor
36
Games played this month
0
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 rating
1336.5
Projected new Weighed rating
1305.5
Projected new Weighted performance
1265.0
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 rating
1336.5
Projected new floor
836.5
Projected new K-facor
36
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 rating
1303.6
Curent Weighted rating
1280.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1303.6
Current floor (min rating allowed)
803.6
Current highest rating achieved
1303.6
Current K-factor
36
Games played this month
0
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 rating
1303.6
Projected new Weighed rating
1284.6
Projected new Weighted performance
0.0
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 rating
1303.6
Projected new floor
803.6
Projected new K-facor
36
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 rating
1280.0
Curent Weighted rating
1252.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1280.0
Current floor (min rating allowed)
780.0
Current highest rating achieved
1280.0
Current K-factor
36
Games played this month
0
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 rating
1280.0
Projected new Weighed rating
1255.7
Projected new Weighted performance
0.0
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 rating
1280.0
Projected new floor
780.0
Projected new K-facor
36
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 rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
780.0
Current highest rating achieved
1200.0
Current K-factor
36
Games played this month
0
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 rating
1200.0
Projected new Weighed rating
1200.0
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 rating
1200.0
Projected new floor
780.0
Projected new K-facor
36
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
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
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
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