Chess South Africa
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Chess South Africa
Botha, J (Jonathan)
Dob:
2005/04/02 (U20)
Gender:
Male
Chess SA id:
1050193176
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2024/02/03 (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
Current Raw rating
1181.7
Current Weighted rating
1189.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1189.0
Current highest rating achieved
1181.7
Current floor (min rating allowed)
681.7
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)
±170.2
Current Raw change used (final)
0.0
Projected new Raw rating
1181.7
Projected new Weighed rating
1093.6
Projected new Weighted performance
324.6
Projected new final Raw rating (if new WP > new Raw)
1181.7
Projected new highest rating
1181.7
Projected new floor
681.7
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1181.7
Projected effective change (new Official - current Official)
-7.3
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
1178.8
Current Weighted rating
1187.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1187.3
Current highest rating achieved
1178.8
Current floor (min rating allowed)
678.8
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)
±170.9
Current Raw change used (final)
0.0
Projected new Raw rating
1178.8
Projected new Weighed rating
1091.9
Projected new Weighted performance
324.6
Projected new final Raw rating (if new WP > new Raw)
1178.8
Projected new highest rating
1178.8
Projected new floor
678.8
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1178.8
Projected effective change (new Official - current Official)
-8.5
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
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
0.0
Current floor (min rating allowed)
700.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
0.0
Projected new floor
700.0
Projected new K-facor
40
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
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
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
0.0
Current floor (min rating allowed)
700.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
0.0
Projected new floor
700.0
Projected new K-facor
40
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
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
1
OUDUSSA Trials 1 2024 (U20 Boys)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
4
1.5
1200.0
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
1
OUDUSSA Trials 1 2024 (U20 Boys)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
4
1.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
4
1
1
2
1.5
37.5
-106.3
1189.4
1083.2
White
2
1
0
1
1.0
50.0
0.0
1177.6
1177.6
Black
2
0
1
1
0.5
25.0
-212.5
1201.2
988.7
Standard
All
4
1
1
2
1.5
37.5
-106.3
1189.4
1083.2
White
2
1
0
1
1.0
50.0
0.0
1177.6
1177.6
Black
2
0
1
1
0.5
25.0
-212.5
1201.2
988.7
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
4
1
1
2
1.5
37.5
-106.3
1189.4
1083.2
White
2
1
0
1
1.0
50.0
0.0
1177.6
1177.6
Black
2
0
1
1
0.5
25.0
-212.5
1201.2
988.7
Standard
All
4
1
1
2
1.5
37.5
-106.3
1189.4
1083.2
White
2
1
0
1
1.0
50.0
0.0
1177.6
1177.6
Black
2
0
1
1
0.5
25.0
-212.5
1201.2
988.7
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
1050107883
Jacobs, V (Vaughan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
1050193177
Langhtrey, B (Brentiano)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
3
1050098458
Mostert, R (Richard)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
4
1050151099
Goliath, P (Peterianho)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
