Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Botha, R (Ryan)
Dob:
2002/07/19 (Adult)
Gender:
Male
Chess SA id:
102055810
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2019/07/20 (1953 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
787.0
Current Weighted rating
785.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
787.0
Current highest rating achieved
787.0
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)
±298.7
Current Raw change used (final)
0.0
Projected new Raw rating
787.0
Projected new Weighed rating
722.5
Projected new Weighted performance
190.3
Projected new final Raw rating (if new WP > new Raw)
787.0
Projected new highest rating
787.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
787.0
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
798.2
Current Weighted rating
798.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
798.2
Current highest rating achieved
798.2
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)
±293.9
Current Raw change used (final)
0.0
Projected new Raw rating
798.2
Projected new Weighed rating
734.3
Projected new Weighted performance
190.3
Projected new final Raw rating (if new WP > new Raw)
798.2
Projected new highest rating
798.2
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
798.2
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
683.0
Current Weighted rating
683.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
683.0
Current highest rating achieved
683.0
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)
±346.4
Current Raw change used (final)
0.0
Projected new Raw rating
683.0
Projected new Weighed rating
628.4
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
683.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
683.0
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
683.0
Current Weighted rating
683.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
683.0
Current highest rating achieved
683.0
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)
±346.4
Current Raw change used (final)
0.0
Projected new Raw rating
683.0
Projected new Weighed rating
628.4
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
683.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
683.0
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
3
Eden Top Schools 2019 (U18)
2019/07/20
2019/07/20
Eden District (WEG)
Standard
60
0.83
5
5
2.0
731.4
741.8
Analysis
2
Calitzdorp Ope 2018
2018/05/05
2018/05/05
Eden District (WEG)
Standard
60
0.83
5
3
1.5
688.6
692.2
Analysis
1
EDENSC Closed 1 2018 (U18)
2018/03/10
2018/03/10
Eden District (WEG)
Standard
60
0.83
5
3
0.5
683.0
683.0
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
16
5
2
9
6.0
37.5
-106.3
1091.7
985.4
White
6
3
1
2
3.5
58.3
70.8
1120.8
1191.6
Black
10
2
1
7
2.5
25.0
-212.5
1074.3
861.8
Standard
All
16
5
2
9
6.0
37.5
-106.3
1091.7
985.4
White
6
3
1
2
3.5
58.3
70.8
1120.8
1191.6
Black
10
2
1
7
2.5
25.0
-212.5
1074.3
861.8
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
2050098457
Karelse, E (Erin-Leigh)
2
2.0
2
0
0
100.0
731.4
425.0
1156.4
View list
2
102023035
Michaels, O (O Neil)
2
2.0
2
0
0
100.0
731.4
425.0
1156.4
View list
3
2040098482
Mabgwe, R (Rutendo)
2
0.0
0
0
2
0.0
731.4
-425.0
306.4
View list
4
103014447
Jordaan, W (Wikus)
2
0.0
0
0
2
0.0
731.4
-425.0
306.4
View list
5
102083811
Prins, K (Kehaam)
2
0.0
0
0
2
0.0
731.4
-425.0
306.4
View list
6
1070098433
Skippers, J (Jaywin)
1
1.0
1
0
0
100.0
688.6
425.0
1113.6
View list
7
183060789
Johnson, A (Azriel)
1
0.5
0
1
0
50.0
688.6
0.0
688.6
View list
8
1020098492
Brown, I (Ivano)
1
0.5
0
1
0
50.0
683.0
0.0
683.0
View list
9
101076897
Oktober, J (Jayson)
1
0.0
0
0
1
0.0
683.0
-425.0
258.0
View list
10
101022965
Mguzulwa, E (Esona)
1
0.0
0
0
1
0.0
683.0
-425.0
258.0
View list
11
101069553
Freeks, K (Karl)
1
0.0
0
0
1
0.0
688.6
-425.0
263.6
View list
