Chess South Africa
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Chess South Africa
Greyling, J (Johnathan)
Dob:
2006/02/16 (U20)
Gender:
Male
Chess SA id:
106076818
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2023/07/29 (295 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
1154.0
Curent Weighted rating
1164.1
Curent Weighted performance
804.9
Current official/published rating (highest between Raw, WR and WP)
1164.1
Current floor (min rating allowed)
690.7
Current highest rating achieved
1190.7
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)
±177.0
Current Raw change used (final)
0.0
Projected new Raw rating
1154.0
Projected new Weighed rating
1162.7
Projected new Weighted performance
804.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1162.7
Projected effective change (new Official - current Official)
-1.4
Projected new highest rating
1190.7
Projected new floor
690.7
Projected new K-facor
40
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
1208.2
Curent Weighted rating
1207.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1208.2
Current floor (min rating allowed)
708.2
Current highest rating achieved
1208.2
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)
±163.9
Current Raw change used (final)
0.0
Projected new Raw rating
1208.2
Projected new Weighed rating
1207.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1208.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1208.2
Projected new floor
708.2
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
1084.0
Curent Weighted rating
1099.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1099.2
Current floor (min rating allowed)
668.0
Current highest rating achieved
1168.0
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)
±195.6
Current Raw change used (final)
0.0
Projected new Raw rating
1084.0
Projected new Weighed rating
1096.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1096.7
Projected effective change (new Official - current Official)
-2.6
Projected new highest rating
1168.0
Projected new floor
668.0
Projected new K-facor
40
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)
668.0
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
668.0
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
CT Metro District East Top Schools Chess 2023 (U17+U19 Mixed)
2023/07/29
2023/07/29
Cape Town (WCT)
Rapid
30
0.60
5
5
1.0
1190.7
1127.6
Analysis
4
District East Schools Chess Individual Trials 2023 (U17 Boys)
2023/02/03
2023/02/04
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1177.4
1202.4
Analysis
3
Kenridge Rapid 2022 (B)
2022/11/05
2022/11/05
Cape Town (WCT)
Rapid
25
0.54
6
6
2.0
1188.4
1168.0
Analysis
2
2020 East District Individuals (U15)
2020/01/31
2020/02/01
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1180.8
1200.0
Analysis
1
Welgemoed Chess Challenge 2018 (U14)
2018/02/24
2018/02/24
Cape Town (WCT)
Rapid
30
0.60
5
5
2.0
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
28
11
0
17
11.0
39.3
-91.1
1211.7
1120.6
White
14
2
0
12
2.0
14.3
-303.6
1205.9
902.3
Black
14
9
0
5
9.0
64.3
121.4
1217.5
1339.0
Standard
All
12
6
0
6
6.0
50.0
0.0
1225.4
1225.4
White
6
2
0
4
2.0
33.3
-141.7
1218.4
1076.7
Black
6
4
0
2
4.0
66.7
141.7
1232.3
1374.0
Rapid
All
16
5
0
11
5.0
31.3
-159.4
1201.5
1042.1
White
8
0
0
8
0.0
0.0
-425.0
1196.5
771.5
Black
8
5
0
3
5.0
62.5
106.3
1206.4
1312.7
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
1060097568
Mizen, D (Daniel)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
1980147708
Crofton-Ball, B (Bradford)
1
1.0
1
0
0
100.0
1188.4
425.0
1613.4
View list
3
1080146750
Ntshangase, O (Oyithando)
1
1.0
1
0
0
100.0
1190.7
425.0
1615.7
View list
4
1060096906
Scheepers, Z (Zack)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
5
2050130479
Rhoda, C (Claudia)
1
1.0
1
0
0
100.0
1180.8
425.0
1605.8
View list
6
1060130487
Siwendu, A (Azole)
1
1.0
1
0
0
100.0
1180.8
425.0
1605.8
View list
7
1050130484
Sibhidla, L (Leago)
1
1.0
1
0
0
100.0
1180.8
425.0
1605.8
View list
8
1060150229
Bonolo, M (Morebudi)
1
1.0
1
0
0
100.0
1177.4
425.0
1602.4
View list
9
1060150246
Van Der Bank, V (Vaughan)
1
1.0
1
0
0
100.0
1177.4
425.0
1602.4
View list
10
2080117986
Vermeulen, I (Inge)
1
1.0
1
0
0
100.0
1188.4
425.0
1613.4
View list
11
1070146752
Zikithi, L (Lwandle)
1
1.0
1
0
0
100.0
1177.4
425.0
1602.4
View list
12
1060097575
Stander, B (Benjamin)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
13
105051694
Shepstone, M (Michael)
1
0.0
0
0
1
0.0
1180.8
-425.0
755.8
View list
14
107076747
Osborne, R (Ryan Eugene)
1
0.0
0
0
1
0.0
1188.4
-425.0
763.4
View list
15
1050130475
Ngcwangu, U (Uman)
1
0.0
0
0
1
0.0
1190.7
-425.0
765.7
View list
16
106092064
Msebi, S (Simamkele)
1
0.0
0
0
1
0.0
1180.8
-425.0
755.8
View list
17
107087105
Brink, W (Wihan)
1
0.0
0
0
1
0.0
1177.4
-425.0
752.4
View list
18
1060150239
Marais, E (Ewan)
1
0.0
0
0
1
0.0
1177.4
-425.0
752.4
View list
19
106064704
Jaftha, J (Jeyhlin)
1
0.0
0
0
1
0.0
1177.4
-425.0
752.4
View list
20
2060096064
Jacobs, C (Caitlin)
1
0.0
0
0
1
0.0
1180.8
-425.0
755.8
View list