Chess South Africa
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Chess South Africa
Jona, S (Siyabonga)
Dob:
2007/05/25 (U18)
Gender:
Male
Chess SA id:
1070108367
FIDE id:
Region:
Mangaung (FMB)
Citizen:
RSA
Title(s):
Last active:
2019/03/16 (2081 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
1073.3
Current Weighted rating
1073.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1073.3
Current highest rating achieved
1073.3
Current floor (min rating allowed)
573.3
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)
±198.6
Current Raw change used (final)
0.0
Projected new Raw rating
1073.3
Projected new Weighed rating
987.4
Projected new Weighted performance
50.5
Projected new final Raw rating (if new WP > new Raw)
1073.3
Projected new highest rating
1073.3
Projected new floor
573.3
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1073.3
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
1047.6
Current Weighted rating
1047.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1047.6
Current highest rating achieved
1047.6
Current floor (min rating allowed)
547.6
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)
±206.0
Current Raw change used (final)
0.0
Projected new Raw rating
1047.6
Projected new Weighed rating
963.8
Projected new Weighted performance
50.5
Projected new final Raw rating (if new WP > new Raw)
1047.6
Projected new highest rating
1047.6
Projected new floor
547.6
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1047.6
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
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
1200.0
Current floor (min rating allowed)
700.0
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)
±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
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
1200.0
Current floor (min rating allowed)
700.0
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)
±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
1200.0
Projected new floor
700.0
Projected new K-facor
36
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.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
1
Mangaung Metro Chess 15-16 March 2019 (D)
2019/03/15
2019/03/16
Mangaung (FMB)
Standard
62
0.84
5
5
0.0
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
5
0
0
5
0.0
0.0
-425.0
952.6
527.6
White
2
0
0
2
0.0
0.0
-425.0
1078.3
653.3
Black
3
0
0
3
0.0
0.0
-425.0
868.7
443.7
Standard
All
5
0
0
5
0.0
0.0
-425.0
952.6
527.6
White
2
0
0
2
0.0
0.0
-425.0
1078.3
653.3
Black
3
0
0
3
0.0
0.0
-425.0
868.7
443.7
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
207083584
Xaba, B (Boitumelo)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
2
1070107764
Phamotse, T (Tumelo)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
3
107064251
Kriel, R (Ruan)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
4
1060108368
Bikitsana, M (Mosala)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
5
108069745
Beelders, A (Andrew)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
