Chess South Africa
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Chess South Africa
Botha, R (Robert Snr)
Dob:
1968/01/09 (Adult)
Gender:
Male
Chess SA id:
1680136147
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2023/09/23 (435 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
1125.0
Current Weighted rating
1129.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1129.6
Current highest rating achieved
1168.5
Current floor (min rating allowed)
668.5
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)
±184.5
Current Raw change used (final)
0.0
Projected new Raw rating
1125.0
Projected new Weighed rating
1038.5
Projected new Weighted performance
433.0
Projected new final Raw rating (if new WP > new Raw)
1125.0
Projected new highest rating
1168.5
Projected new floor
668.5
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1125.0
Projected effective change (new Official - current Official)
-4.6
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
1103.2
Current Weighted rating
1110.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1110.0
Current highest rating achieved
1160.0
Current floor (min rating allowed)
660.0
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)
±190.3
Current Raw change used (final)
0.0
Projected new Raw rating
1103.2
Projected new Weighed rating
1020.2
Projected new Weighted performance
433.0
Projected new final Raw rating (if new WP > new Raw)
1103.2
Projected new highest rating
1160.0
Projected new floor
660.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1103.2
Projected effective change (new Official - current Official)
-6.8
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
1300.0
Current Weighted rating
1274.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1300.0
Current highest rating achieved
1300.0
Current floor (min rating allowed)
800.0
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)
±143.8
Current Raw change used (final)
0.0
Projected new Raw rating
1300.0
Projected new Weighed rating
1174.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1300.0
Projected new floor
800.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1300.0
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
1300.0
Current Weighted rating
1274.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1300.0
Current highest rating achieved
1300.0
Current floor (min rating allowed)
800.0
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)
±143.8
Current Raw change used (final)
0.0
Projected new Raw rating
1300.0
Projected new Weighed rating
1174.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1300.0
Projected new floor
800.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1300.0
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
2
2023 Centurion Chess Open (C)
2023/09/23
2023/09/23
Tshwane (GTP)
Standard
60
0.83
5
5
0.5
1168.5
1160.0
Analysis
1
2021 CCC Inhouse (B)
2021/10/20
2021/11/17
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
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
10
1
2
7
2.0
20.0
-255.0
1236.1
981.1
White
5
0
2
3
1.0
20.0
-255.0
1195.7
940.7
Black
5
1
0
4
1.0
20.0
-255.0
1276.6
1021.6
Standard
All
10
1
2
7
2.0
20.0
-255.0
1236.1
981.1
White
5
0
2
3
1.0
20.0
-255.0
1195.7
940.7
Black
5
1
0
4
1.0
20.0
-255.0
1276.6
1021.6
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
2110103356
Bokosi, T (Tanaka)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
1640136151
Koekemoer, M (Martin)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
3
1140135554
Prinsloo, A (Alexander)
1
0.5
0
1
0
50.0
1168.5
0.0
1168.5
View list
4
1020116728
Tjebane, B (Bohlale)
1
0.0
0
0
1
0.0
1168.5
-425.0
743.5
View list
5
1050162063
Ryder-Taylor, K (Keaton)
1
0.0
0
0
1
0.0
1168.5
-425.0
743.5
View list
6
1000115362
Nyamutambo, T (Thendo)
1
0.0
0
0
1
0.0
1168.5
-425.0
743.5
View list
7
108090807
Mcphail, R (Ryan)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
8
109073377
Claassen, EG (Emileo)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
9
1110114764
Botha, RMJ (Robert)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
10
1070112457
Bhula, S (Shyam Hitesh)
1
0.0
0
0
1
0.0
1168.5
-425.0
743.5
View list
