Chess South Africa
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Chess South Africa
Lederman, A (Azriel)
Dob:
2012/06/12 (U14)
Gender:
Male
Chess SA id:
1120133817
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/01/28 (141 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
Current Raw rating
1265.6
Current Weighted rating
1238.4
Current Weighted performance
1180.7
Current official/published rating (highest between Raw, WR and WP)
1265.6
Current highest rating achieved
1265.6
Current floor (min rating allowed)
765.6
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)
±151.0
Current Raw change used (final)
0.0
Projected new Raw rating
1265.6
Projected new Weighed rating
1139.9
Projected new Weighted performance
1180.7
Projected new final Raw rating (if new WP > new Raw)
1265.6
Projected new highest rating
1265.6
Projected new floor
765.6
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1265.6
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 rating
1249.5
Current Weighted rating
1234.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1249.5
Current highest rating achieved
1249.5
Current floor (min rating allowed)
749.5
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)
±154.5
Current Raw change used (final)
0.0
Projected new Raw rating
1249.5
Projected new Weighed rating
1135.7
Projected new Weighted performance
1021.7
Projected new final Raw rating (if new WP > new Raw)
1249.5
Projected new highest rating
1249.5
Projected new floor
749.5
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1249.5
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 rating
1230.8
Current Weighted rating
1203.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1230.8
Current highest rating achieved
1230.8
Current floor (min rating allowed)
730.8
Current K-factor
36
s
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)
±158.7
Current Raw change used (final)
0.0
Projected new Raw rating
1230.8
Projected new Weighed rating
1107.7
Projected new Weighted performance
657.1
Projected new final Raw rating (if new WP > new Raw)
1230.8
Projected new highest rating
1230.8
Projected new floor
730.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1230.8
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 rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
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
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
1
JMC Kick Off Tournament 2024 (D)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1244.4
1219.3
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
7
JMC Kick Off Tournament 2024 (D)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1244.4
1219.3
Analysis
6
Chess Power House Festive Rapid 2023 (Grade 3-7)
2023/12/15
2023/12/15
Johannesburg Metro (GJM)
Rapid
20
0.47
6
6
4.0
1212.6
1176.4
Analysis
5
ThinkChess 6 July 2023
2023/07/06
2023/07/06
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1221.9
1234.8
Analysis
4
JMC Trials 1 - Laerskool Fontainebleau 2022 (U12)
2022/07/24
2022/07/24
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1215.9
1231.2
Analysis
3
Goforchess Junior Championship 2022 (Grayston)
2022/03/06
2022/03/06
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1188.7
1200.0
Analysis
2
Pinnacle College Waterfall Open (Pinnacle)
2021/10/02
2021/10/03
Johannesburg Metro (GJM)
Standard
90
0.94
6
0
0.0
1188.7
1200.0
Analysis
1
JMC Helpmekaar 2021 (U10)
2021/09/06
2021/09/06
Johannesburg Metro (GJM)
Rapid
30
0.60
5
4
1.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
5
3
0
2
3.0
60.0
85.0
1273.0
1358.0
White
2
1
0
1
1.0
50.0
0.0
1264.6
1264.6
Black
3
2
0
1
2.0
66.7
141.7
1278.5
1420.2
Standard
All
5
3
0
2
3.0
60.0
85.0
1273.0
1358.0
White
2
1
0
1
1.0
50.0
0.0
1264.6
1264.6
Black
3
2
0
1
2.0
66.7
141.7
1278.5
1420.2
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
30
15
1
14
15.5
51.7
14.2
1281.1
1295.2
White
15
9
0
6
9.0
60.0
85.0
1316.1
1401.1
Black
15
6
1
8
6.5
43.3
-56.7
1246.1
1189.4
Standard
All
20
10
0
10
10.0
50.0
0.0
1275.4
1275.4
White
9
5
0
4
5.0
55.6
47.2
1326.4
1373.7
Black
11
5
0
6
5.0
45.5
-38.6
1233.6
1195.0
Rapid
All
10
5
1
4
5.5
55.0
42.5
1292.4
1334.9
White
6
4
0
2
4.0
66.7
141.7
1300.5
1442.2
Black
4
1
1
2
1.5
37.5
-106.3
1280.2
1173.9
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
109078830
Johnson, A (Ashar)
1
1.0
1
0
0
100.0
1188.7
425.0
1613.7
View list
2
1140148601
Bazhko, M (Mikhail)
1
1.0
1
0
0
100.0
1221.9
425.0
1646.9
View list
3
1110143798
Ismael, Z (Ziya)
1
1.0
1
0
0
100.0
1215.9
425.0
1640.9
View list
4
1120119998
Horne, K (Kian Louis)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
5
1140138260
Ma, M (Matthew)
1
1.0
1
0
0
100.0
1244.4
425.0
1669.4
View list
6
1080138224
Chaplin, N (Nicholas)
1
1.0
1
0
0
100.0
1188.7
425.0
1613.7
View list
7
2150136753
Exarchos, I (Isabella)
1
1.0
1
0
0
100.0
1188.7
425.0
1613.7
View list
8
1110191588
Deng, J (Jinyuan)
1
1.0
1
0
0
100.0
1244.4
425.0
1669.4
View list
9
2110141975
Mlilo, S (Sibongisiwe)
1
1.0
1
0
0
100.0
1212.6
425.0
1637.6
View list
10
1120156396
Mokote, G (Gito Sipho)
1
1.0
1
0
0
100.0
1212.6
425.0
1637.6
View list
11
2110143800
Naidoo, D (Dhiya)
1
1.0
1
0
0
100.0
1215.9
425.0
1640.9
View list
12
1120147303
Nkuna, I (Inathi)
1
1.0
1
0
0
100.0
1212.6
425.0
1637.6
View list
13
2140145623
Parag, A (Aadya)
1
1.0
1
0
0
100.0
1244.4
425.0
1669.4
View list
14
1140148614
Subroyen, J (Jeevesh)
1
1.0
1
0
0
100.0
1221.9
425.0
1646.9
View list
15
1150151775
Van Wyk, P (Paul)
1
1.0
1
0
0
100.0
1212.6
425.0
1637.6
View list
16
2130133722
Dalal, D (Dhanika)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
17
1090140202
Malebye, T (Tshimega)
1
0.0
0
0
1
0.0
1244.4
-425.0
819.4
View list
18
1100158142
Iya, K (Kajua)
1
0.0
0
0
1
0.0
1221.9
-425.0
796.9
View list
19
1090152468
Kojetin, C (Connor)
1
0.0
0
0
1
0.0
1244.4
-425.0
819.4
View list
20
1110141970
Kingsbury, J (Jack)
1
0.0
0
0
1
0.0
1215.9
-425.0
790.9
View list