Chess South Africa
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Chess South Africa
Koopman, J (Juan)
Dob:
2012/07/20 (U14)
Gender:
Male
Chess SA id:
1120153772
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2023/04/22 (444 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
1167.4
Current Weighted rating
1170.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1170.4
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)
±173.7
Current Raw change used (final)
0.0
Projected new Raw rating
1167.4
Projected new Weighed rating
1076.3
Projected new Weighted performance
250.2
Projected new final Raw rating (if new WP > new Raw)
1167.4
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)
1167.4
Projected effective change (new Official - current Official)
-3.0
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
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
1146.7
Current Weighted rating
1151.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1151.7
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)
±178.9
Current Raw change used (final)
0.0
Projected new Raw rating
1146.7
Projected new Weighed rating
1058.7
Projected new Weighted performance
263.4
Projected new final Raw rating (if new WP > new Raw)
1146.7
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)
1146.7
Projected effective change (new Official - current Official)
-5.0
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
2
West Coast Schools Development Championships 2023 (U11 Boys)
2023/04/22
2023/04/22
West Coast (WCU)
Rapid
30
0.60
5
0
0.0
1167.4
1146.7
Analysis
1
Lower West Coast Primary Schools Prestige Championships 2023 (U11 Boys)
2023/03/04
2023/03/04
West Coast (WCU)
Rapid
30
0.60
5
5
1.0
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
1
0
4
1.0
20.0
-255.0
1205.6
950.6
White
3
1
0
2
1.0
33.3
-141.7
1200.0
1058.3
Black
2
0
0
2
0.0
0.0
-425.0
1213.9
788.9
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
5
1
0
4
1.0
20.0
-255.0
1205.6
950.6
White
3
1
0
2
1.0
33.3
-141.7
1200.0
1058.3
Black
2
0
0
2
0.0
0.0
-425.0
1213.9
788.9
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
1130153765
Chipoka, S (Sasha)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
1140134359
Vaaltyn, A (Ash-Jade)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
3
1120153770
Kallaway, A (Ashton)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
4
1120153766
Clarens, J (John-Dee)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
5
1120153764
April, V (Virgil)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
