Chess South Africa
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Chess South Africa
Roberts, MA (Mario)
Dob:
1975/06/02 (Adult)
Gender:
Male
Chess SA id:
175032292
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2023/08/12 (319 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
1167.6
Current Weighted rating
1164.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1167.6
Current highest rating achieved
1167.6
Current floor (min rating allowed)
667.6
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)
±173.6
Current Raw change used (final)
0.0
Projected new Raw rating
1167.6
Projected new Weighed rating
1071.4
Projected new Weighted performance
805.7
Projected new final Raw rating (if new WP > new Raw)
1167.6
Projected new highest rating
1167.6
Projected new floor
667.6
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1167.6
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
1220.3
Current Weighted rating
1193.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1220.3
Current highest rating achieved
1220.3
Current floor (min rating allowed)
720.3
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)
±161.1
Current Raw change used (final)
0.0
Projected new Raw rating
1220.3
Projected new Weighed rating
1099.0
Projected new Weighted performance
805.7
Projected new final Raw rating (if new WP > new Raw)
1220.3
Projected new highest rating
1220.3
Projected new floor
720.3
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1220.3
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
1072.0
Current Weighted rating
1072.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1072.0
Current highest rating achieved
1072.0
Current floor (min rating allowed)
572.0
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)
±199.0
Current Raw change used (final)
0.0
Projected new Raw rating
1072.0
Projected new Weighed rating
986.2
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1072.0
Projected new floor
572.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1072.0
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
1072.0
Current Weighted rating
1072.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1072.0
Current highest rating achieved
1072.0
Current floor (min rating allowed)
572.0
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)
±199.0
Current Raw change used (final)
0.0
Projected new Raw rating
1072.0
Projected new Weighed rating
986.2
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1072.0
Projected new floor
572.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1072.0
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
4
ANIME @ Play Chess 2023 (Braille)
2023/08/12
2023/08/12
Ekurhuleni (GE)
Standard
60
0.83
4
4
1.5
1157.3
1168.4
Analysis
3
Ekurhuleni Chess Springs Club Open 2022 (F)
2022/09/03
2022/09/03
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1131.1
1139.2
Analysis
2
2019 South African Braille Championship
2020/01/11
2020/01/12
4 Knights (4K)
Standard
90
0.94
5
5
2.0
1128.8
1140.4
Analysis
1
2019 Gauteng Braille Open
2019/10/26
2019/10/26
Tshwane (GTP)
Standard
60
0.83
4
4
3.0
1072.0
1072.0
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
18
9
1
8
9.5
52.8
23.6
1235.9
1259.5
White
8
2
1
5
2.5
31.3
-159.4
1249.4
1090.1
Black
10
7
0
3
7.0
70.0
170.0
1225.1
1395.1
Standard
All
18
9
1
8
9.5
52.8
23.6
1235.9
1259.5
White
8
2
1
5
2.5
31.3
-159.4
1249.4
1090.1
Black
10
7
0
3
7.0
70.0
170.0
1225.1
1395.1
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
167006724
De Nobrega, FP (Florindo)
2
1.5
1
1
0
75.0
1114.7
212.5
1327.2
View list
2
165011457
Grove, IJ (Izak)
2
0.0
0
0
2
0.0
1129.9
-425.0
704.9
View list
3
1620160788
Kruger, H (Hendrik)
1
1.0
1
0
0
100.0
1157.3
425.0
1582.3
View list
4
1570130000
Kaplan, M (Mark)
1
1.0
1
0
0
100.0
1131.1
425.0
1556.1
View list
5
170014653
Joubert, W (Willem)
1
1.0
1
0
0
100.0
1072.0
425.0
1497.0
View list
6
1860146524
Blom, H (Hermanus Christo)
1
1.0
1
0
0
100.0
1131.1
425.0
1556.1
View list
7
1600115352
Smal, R (Reginald)
1
1.0
1
0
0
100.0
1072.0
425.0
1497.0
View list
8
2870146525
Nontsikelelo, Y (Yvonne)
1
1.0
1
0
0
100.0
1131.1
425.0
1556.1
View list
9
2590130003
Van Der Westhuizen, T (Tersia)
1
1.0
1
0
0
100.0
1128.8
425.0
1553.8
View list
10
1640130002
Van Der Westhuizen, A (Andries)
1
1.0
1
0
0
100.0
1128.8
425.0
1553.8
View list
11
177036587
Strydom, BV (Brett)
1
0.0
0
0
1
0.0
1128.8
-425.0
703.8
View list
12
187061029
Mfengu, N (Ndaluthando)
1
0.0
0
0
1
0.0
1131.1
-425.0
706.1
View list
13
172060744
De Meyer, B (Bruno)
1
0.0
0
0
1
0.0
1157.3
-425.0
732.3
View list
14
263011234
Grobbelaar, FJ (Fransiena)
1
0.0
0
0
1
0.0
1157.3
-425.0
732.3
View list
15
171011166
Grib, J (Johannes)
1
0.0
0
0
1
0.0
1072.0
-425.0
647.0
View list
16
281011165
Grib, J (Jessica)
1
0.0
0
0
1
0.0
1128.8
-425.0
703.8
View list