Chess South Africa
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Chess South Africa
Isaacs, J (Jonathan)
Dob:
2011/05/08 (U14)
Gender:
Male
Chess SA id:
1110159747
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2024/08/31 (96 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
1210.8
Current Weighted rating
1197.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1210.8
Current highest rating achieved
1210.8
Current floor (min rating allowed)
710.8
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)
±163.3
Current Raw change used (final)
0.0
Projected new Raw rating
1210.8
Projected new Weighed rating
1101.5
Projected new Weighted performance
673.0
Projected new final Raw rating (if new WP > new Raw)
1210.8
Projected new highest rating
1210.8
Projected new floor
710.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1210.8
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
1191.8
Current Weighted rating
1192.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1192.5
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)
±167.8
Current Raw change used (final)
0.0
Projected new Raw rating
1191.8
Projected new Weighed rating
1097.0
Projected new Weighted performance
325.6
Projected new final Raw rating (if new WP > new Raw)
1191.8
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)
1191.8
Projected effective change (new Official - current Official)
-0.7
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
1238.2
Current Weighted rating
1208.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1238.2
Current highest rating achieved
1238.2
Current floor (min rating allowed)
738.2
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)
±157.0
Current Raw change used (final)
0.0
Projected new Raw rating
1238.2
Projected new Weighed rating
1112.4
Projected new Weighted performance
434.3
Projected new final Raw rating (if new WP > new Raw)
1238.2
Projected new highest rating
1238.2
Projected new floor
738.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1238.2
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
Tsogo Sun Moves For Life Learners Tournament 2024 (U13)
2024/08/31
2024/08/31
Eden (WEG)
Rapid
20
0.47
6
6
4.0
1192.2
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
3
Tsogo Sun Moves For Life Learners Tournament 2024 (U13)
2024/08/31
2024/08/31
Eden (WEG)
Rapid
20
0.47
6
6
4.0
1192.2
1200.0
Analysis
2
Eden Top Schools 2023 (U13 Mix)
2023/08/19
2023/08/19
Eden District (WEG)
Standard
60
0.83
5
4
2.0
1199.4
1198.6
Analysis
1
Mossel Bay Top Schools 2023 (U13)
2023/07/29
2023/07/29
Eden District (WEG)
Standard
60
0.83
5
2
1.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
6
4
0
2
4.0
66.7
141.7
1205.4
1347.1
White
3
2
0
1
2.0
66.7
141.7
1210.8
1352.5
Black
3
2
0
1
2.0
66.7
141.7
1200.0
1341.7
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
6
4
0
2
4.0
66.7
141.7
1205.4
1347.1
White
3
2
0
1
2.0
66.7
141.7
1210.8
1352.5
Black
3
2
0
1
2.0
66.7
141.7
1200.0
1341.7
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
12
7
0
5
7.0
58.3
70.8
1190.4
1261.3
White
7
4
0
3
4.0
57.1
60.7
1195.7
1256.4
Black
5
3
0
2
3.0
60.0
85.0
1183.0
1268.0
Standard
All
6
3
0
3
3.0
50.0
0.0
1175.4
1175.4
White
4
2
0
2
2.0
50.0
0.0
1184.4
1184.4
Black
2
1
0
1
1.0
50.0
0.0
1157.5
1157.5
Rapid
All
6
4
0
2
4.0
66.7
141.7
1205.4
1347.1
White
3
2
0
1
2.0
66.7
141.7
1210.8
1352.5
Black
3
2
0
1
2.0
66.7
141.7
1200.0
1341.7
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
1110143702
November, C (Clayton)
1
1.0
1
0
0
100.0
1199.4
425.0
1624.4
View list
2
1110310996
May, N (Nathaniel)
1
1.0
1
0
0
100.0
1192.2
425.0
1617.2
View list
3
2120310995
May, B (Britney)
1
1.0
1
0
0
100.0
1192.2
425.0
1617.2
View list
4
1120193097
Maki, T (Tulani)
1
1.0
1
0
0
100.0
1192.2
425.0
1617.2
View list
5
1110161659
Koopman, G (Giovanni)
1
1.0
1
0
0
100.0
1199.4
425.0
1624.4
View list
6
1110130866
Kannemeyer, J (Juvoghan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
2120310990
James, R (Ruwayda)
1
1.0
1
0
0
100.0
1192.2
425.0
1617.2
View list
8
2110134727
Van Den Heever, A (Anita)
1
0.0
0
0
1
0.0
1199.4
-425.0
774.4
View list
9
1100137880
Phiri, S (Success)
1
0.0
0
0
1
0.0
1199.4
-425.0
774.4
View list
10
1120136808
Philander, C (Curtley)
1
0.0
0
0
1
0.0
1192.2
-425.0
767.2
View list
11
2110130874
Petersen, R (Raynique)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
12
2120310986
Griffiths, J (Janine)
1
0.0
0
0
1
0.0
1192.2
-425.0
767.2
View list