Chess South Africa
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Chess South Africa
Robberts, S (Stefan Johan)
Dob:
2004/09/20 (Adult)
Gender:
Male
Chess SA id:
104044537
FIDE id:
Region:
Mangaung (FMB)
Citizen:
RSA
Title(s):
Last active:
2019/06/01 (1849 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
1111.6
Current Weighted rating
1111.6
Current Weighted performance
392.0
Current official/published rating (highest between Raw, WR and WP)
1111.6
Current highest rating achieved
1146.3
Current floor (min rating allowed)
646.3
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)
±188.1
Current Raw change used (final)
0.0
Projected new Raw rating
1111.6
Projected new Weighed rating
1022.7
Projected new Weighted performance
392.0
Projected new final Raw rating (if new WP > new Raw)
1111.6
Projected new highest rating
1146.3
Projected new floor
646.3
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1111.6
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
1100.7
Current Weighted rating
1100.7
Current Weighted performance
392.0
Current official/published rating (highest between Raw, WR and WP)
1100.7
Current highest rating achieved
1141.9
Current floor (min rating allowed)
641.9
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)
±191.0
Current Raw change used (final)
0.0
Projected new Raw rating
1100.7
Projected new Weighed rating
1012.6
Projected new Weighted performance
392.0
Projected new final Raw rating (if new WP > new Raw)
1100.7
Projected new highest rating
1141.9
Projected new floor
641.9
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1100.7
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
705.4
Current Weighted rating
684.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
705.4
Current highest rating achieved
705.4
Current floor (min rating allowed)
500.0
Current K-factor
40
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)
±335.5
Current Raw change used (final)
0.0
Projected new Raw rating
705.4
Projected new Weighed rating
630.1
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
705.4
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
705.4
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
668.4
Current Weighted rating
668.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
668.4
Current highest rating achieved
678.0
Current floor (min rating allowed)
500.0
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)
±353.6
Current Raw change used (final)
0.0
Projected new Raw rating
668.4
Projected new Weighed rating
614.9
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
678.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
668.4
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
13
Mangaung Metro Chess 31 May to 1 June 2019 (C)
2019/05/31
2019/06/01
Mangaung (FMB)
Standard
62
0.84
5
5
2.5
1097.8
1082.7
Analysis
12
Inter Regional Chess Championship 2019 (U16)
2019/05/10
2019/05/11
Mangaung (FMB)
Standard
60
0.83
5
4
1.0
1146.3
1141.9
Analysis
11
Mangaung Metro Chess 12 to 13 April 2019 (C)
2019/04/12
2019/04/13
Mangaung (FMB)
Standard
62
0.84
5
5
3.0
1100.6
1099.3
Analysis
10
Morris Club Challenge 2019
2019/02/16
2019/02/16
Mangaung (FMB)
Standard
60
0.83
5
5
3.0
921.9
923.7
Analysis
9
Mangaung Metro Chess 1-2 February 2019 (C)
2019/02/01
2019/02/02
Mangaung (FMB)
Standard
62
0.84
5
5
2.0
921.9
923.7
Analysis
8
Mangaung Metro Chess 18-19 January 2019 (C)
2019/01/18
2019/01/19
Mangaung (FMB)
Standard
62
0.84
5
5
2.0
856.5
860.3
Analysis
7
South African Junior Team Championships 2018 (U16B)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
7
0.0
899.5
902.2
Analysis
6
Free State Open 2018 (C)
2018/08/17
2018/08/18
Mangaung (FMB)
Standard
62
0.84
6
6
4.0
749.2
751.8
Analysis
5
Inter Regional 2018 (U16 Team)
2018/05/04
2018/05/05
Frances Baard (NCF)
Standard
60
0.83
5
5
1.0
681.5
693.2
Analysis
4
Mangaung Metro Chess 20-21 April 2018 (C)
2018/04/20
2018/04/21
Mangaung (FMB)
Standard
62
0.84
5
5
2.0
636.5
639.2
Analysis
3
Mangaung Metro Chess 2 & 3 February 2018 (C)
2018/02/02
2018/02/03
Mangaung (FMB)
Standard
62
0.84
5
4
1.0
615.3
614.0
Analysis
2
Mangaung Metro Chess 19 & 20 January 2018 (C)
2018/01/19
2018/01/20
Mangaung (FMB)
Standard
62
0.84
5
4
1.0
668.4
668.4
Analysis
1
South African Junior Team Championships 2017 (U14C)
2018/01/04
2018/01/08
4 Knights (4K)
Standard
120
1.00
7
7
0.0
668.4
668.4
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
67
22
1
44
22.5
33.6
-139.6
1079.8
940.2
White
33
12
0
21
12.0
36.4
-115.9
1101.3
985.3
Black
34
10
1
23
10.5
30.9
-162.5
1058.9
896.4
Standard
All
67
22
1
44
22.5
33.6
-139.6
1079.8
940.2
White
33
12
0
21
12.0
36.4
-115.9
1101.3
985.3
Black
34
10
1
23
10.5
30.9
-162.5
1058.9
896.4
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
105035097
Smit, A (Albert)
3
2.0
2
0
1
66.7
640.1
141.7
781.7
View list
2
105053233
Fouchee, M (Marinus)
3
1.0
1
0
2
33.3
864.3
-141.7
722.7
View list
3
108086187
Rossouw, J (Johrne)
2
2.0
2
0
0
100.0
1099.2
425.0
1524.2
View list
4
1040106774
Redguard, J (Junaid)
2
1.0
1
0
1
50.0
1011.3
0.0
1011.3
View list
5
207064249
Boje, C (Carissa)
2
0.0
0
0
2
0.0
977.1
-425.0
552.1
View list
6
104068823
Segale, N (Neo)
2
0.0
0
0
2
0.0
907.3
-425.0
482.3
View list
7
109093312
Deetlefs, W (Werleo)
1
1.0
1
0
0
100.0
636.5
425.0
1061.5
View list
8
103077678
Jacobs, D (Duwayne)
1
1.0
1
0
0
100.0
681.5
425.0
1106.5
View list
9
207076080
Jansen Van Rensburg, K (Kara)
1
1.0
1
0
0
100.0
749.2
425.0
1174.2
View list
10
103085523
Lefeta, T (Thato)
1
1.0
1
0
0
100.0
749.2
425.0
1174.2
View list
11
1050109552
Geldenhuys, M (Michael)
1
1.0
1
0
0
100.0
921.9
425.0
1346.9
View list
12
104069240
Lengau, T (Thuto)
1
1.0
1
0
0
100.0
668.4
425.0
1093.4
View list
13
1040106458
Mcthebe, M (Marshall)
1
1.0
1
0
0
100.0
1097.8
425.0
1522.8
View list
14
108069747
Melville, J (Jason)
1
1.0
1
0
0
100.0
921.9
425.0
1346.9
View list
15
2050105427
Mogorosie, L (Lindsay)
1
1.0
1
0
0
100.0
1100.6
425.0
1525.6
View list
16
1010105439
Peters, L (Lennox)
1
1.0
1
0
0
100.0
749.2
425.0
1174.2
View list
17
204030549
Poolman, JM (Johanna)
1
1.0
1
0
0
100.0
856.5
425.0
1281.5
View list
18
204079335
Shariff, S (Stacey)
1
1.0
1
0
0
100.0
921.9
425.0
1346.9
View list
19
1090100911
Streicher, S (Stefan)
1
1.0
1
0
0
100.0
856.5
425.0
1281.5
View list
20
104036958
Swart, D (Dian)
1
1.0
1
0
0
100.0
1146.3
425.0
1571.3
View list