Chess South Africa
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Chess South Africa
Matthews, I (Isiah)
Dob:
2005/08/24 (U20)
Gender:
Male
Chess SA id:
1050098459
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2019/05/11 (1865 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
1093.6
Current Weighted rating
1093.6
Current Weighted performance
381.1
Current official/published rating (highest between Raw, WR and WP)
1093.6
Current highest rating achieved
1129.5
Current floor (min rating allowed)
629.5
Current K-factor
40
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)
±193.0
Current Raw change used (final)
0.0
Projected new Raw rating
1093.6
Projected new Weighed rating
1006.1
Projected new Weighted performance
381.1
Projected new final Raw rating (if new WP > new Raw)
1093.6
Projected new highest rating
1129.5
Projected new floor
629.5
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1093.6
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
1090.9
Current Weighted rating
1090.9
Current Weighted performance
381.1
Current official/published rating (highest between Raw, WR and WP)
1090.9
Current highest rating achieved
1128.1
Current floor (min rating allowed)
628.1
Current K-factor
40
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)
±193.7
Current Raw change used (final)
0.0
Projected new Raw rating
1090.9
Projected new Weighed rating
1003.6
Projected new Weighted performance
381.1
Projected new final Raw rating (if new WP > new Raw)
1090.9
Projected new highest rating
1128.1
Projected new floor
628.1
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1090.9
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
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)
±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
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.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
9
Eden Trials 3 2019 (U16 Open)
2019/05/11
2019/05/11
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1053.1
1037.7
Analysis
8
Eden Trials 2 2019 (U16 Open)
2019/04/13
2019/04/13
Eden District (WEG)
Standard
60
0.83
5
5
1.0
1129.5
1128.1
Analysis
7
Eden Trials 1 2019 (U16 Open)
2019/03/02
2019/03/02
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1067.5
1067.2
Analysis
6
Oudtshoorn Trials 3 2019 (U16)
2019/02/16
2019/02/16
Eden District (WEG)
Standard
60
0.83
5
4
3.0
990.8
966.0
Analysis
5
Oudtshoorn Trials 2 2019 (U16)
2019/02/09
2019/02/09
Eden District (WEG)
Standard
60
0.83
5
5
3.5
990.8
966.0
Analysis
4
Oudtshoorn Trials 1 2019 (U16)
2019/01/19
2019/01/19
Eden District (WEG)
Standard
60
0.83
5
4
2.0
976.2
944.0
Analysis
3
EDENSC Closed 3 2018 (U14 Open)
2018/05/12
2018/05/12
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1022.3
988.8
Analysis
2
EDENSC Closed 2 2018 (U14 Open)
2018/04/14
2018/04/14
Eden District (WEG)
Standard
60
0.83
5
5
2.5
1100.7
1080.4
Analysis
1
EDENSC Closed 1 2018 (U14 Boys)
2018/03/10
2018/03/10
Eden District (WEG)
Standard
60
0.83
5
4
0.0
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
42
21
2
19
22.0
52.4
20.2
931.1
951.4
White
21
11
1
9
11.5
54.8
40.5
928.7
969.1
Black
21
10
1
10
10.5
50.0
0.0
933.6
933.6
Standard
All
42
21
2
19
22.0
52.4
20.2
931.1
951.4
White
21
11
1
9
11.5
54.8
40.5
928.7
969.1
Black
21
10
1
10
10.5
50.0
0.0
933.6
933.6
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
105078145
Pietersen, J (Juwellyn)
3
1.0
1
0
2
33.3
1060.5
-141.7
918.9
View list
2
1040107894
Scholtz, L (Lidime-Arno)
2
2.0
2
0
0
100.0
990.8
425.0
1415.8
View list
3
1050107885
Draai, K (Kevin)
2
1.0
1
0
1
50.0
1021.9
0.0
1021.9
View list
4
104055794
Arries, J (Jodin)
2
1.0
1
0
1
50.0
983.5
0.0
983.5
View list
5
105078148
Botha, J (Jonathan)
2
1.0
1
0
1
50.0
1098.5
0.0
1098.5
View list
6
104054162
Barnard, S (Stephan)
1
1.0
1
0
0
100.0
1067.5
425.0
1492.5
View list
7
1050107882
Julies, N (Nigeal)
1
1.0
1
0
0
100.0
990.8
425.0
1415.8
View list
8
105047570
Joseph, C (Christopher)
1
1.0
1
0
0
100.0
1053.1
425.0
1478.1
View list
9
1040110958
Jaftha, R (Rhowen)
1
1.0
1
0
0
100.0
1053.1
425.0
1478.1
View list
10
1050107883
Jacobs, V (Vaughan)
1
1.0
1
0
0
100.0
1129.5
425.0
1554.5
View list
11
205078132
Marcus, I (Inge)
1
1.0
1
0
0
100.0
1022.3
425.0
1447.3
View list
12
1050107890
Campher, L (Luwiaan)
1
1.0
1
0
0
100.0
976.2
425.0
1401.2
View list
13
205089216
Meyer, J (Jordan)
1
1.0
1
0
0
100.0
1022.3
425.0
1447.3
View list
14
1050098458
Mostert, R (Richard)
1
1.0
1
0
0
100.0
976.2
425.0
1401.2
View list
15
205077870
Mwangi, A (Abigail)
1
1.0
1
0
0
100.0
1100.7
425.0
1525.7
View list
16
104088333
Pieterse, A (Amelick)
1
1.0
1
0
0
100.0
1053.1
425.0
1478.1
View list
17
106083796
Saayman, JM (Johannes)
1
1.0
1
0
0
100.0
1022.3
425.0
1447.3
View list
18
204078121
Saayman, N (Nerene)
1
1.0
1
0
0
100.0
1067.5
425.0
1492.5
View list
19
1050098455
Schoeman, E (Eugh Kian)
1
1.0
1
0
0
100.0
990.8
425.0
1415.8
View list
20
105065452
Zhu, D (Dennis)
1
1.0
1
0
0
100.0
1100.7
425.0
1525.7
View list