Chess South Africa
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Chess South Africa
Koopman, J (Juan)
Dob:
2011/09/22 (U14)
Gender:
Male
Chess SA id:
1110150938
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2024/05/05 (14 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
Curent Raw rating
1219.2
Curent Weighted rating
1183.6
Curent Weighted performance
1198.6
Current official/published rating (highest between Raw, WR and WP)
1219.2
Current floor (min rating allowed)
719.2
Current highest rating achieved
1219.2
Current K-factor
36
Games played this month
6
Score (S)
2.0
Expected score (We)
1.91
Difference (S-We)
0.09
Current Raw change (no limits, including tournament time weight)
2.7
Current min/max change allowed (with limits)
±161.3
Current Raw change used (final)
2.7
Projected new Raw rating
1221.9
Projected new Weighed rating
1186.3
Projected new Weighted performance
1198.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1221.9
Projected effective change (new Official - current Official)
+2.7
Projected new highest rating
1221.9
Projected new floor
721.9
Projected new K-facor
36
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
Curent Raw rating
1222.3
Curent Weighted rating
1180.0
Curent Weighted performance
1201.6
Current official/published rating (highest between Raw, WR and WP)
1222.3
Current floor (min rating allowed)
722.3
Current highest rating achieved
1222.3
Current K-factor
36
Games played this month
6
Score (S)
2.0
Expected score (We)
1.96
Difference (S-We)
0.04
Current Raw change (no limits, including tournament time weight)
1.4
Current min/max change allowed (with limits)
±160.6
Current Raw change used (final)
1.4
Projected new Raw rating
1223.7
Projected new Weighed rating
1183.2
Projected new Weighted performance
1201.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1223.7
Projected effective change (new Official - current Official)
+1.4
Projected new highest rating
1223.7
Projected new floor
723.7
Projected new K-facor
36
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
Curent Raw rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
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
1200.0
Projected new Weighted performance
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
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
Curent Raw rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
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
1200.0
Projected new Weighted performance
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
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Tournaments
History
Tournament:
Western Cape PS Individuals Championship 2024 (U13 Boys)
Start:
2024/05/04
End:
2024/05/05
Host:
WCU
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
6
Games:
6
Score:
2.0
Main rating:
1219.2
Rating gain/loss:
2.7
Type rating:
1222.3
Rating gain/loss:
1.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
4
Western Cape PS Individuals Championship 2024 (U13 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
2.0
1219.2
1222.3
Analysis
3
Eden School Chess Trials 1 2024 (U13 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
3.5
1150.5
1142.4
Analysis
2
Kannaland Proewe 2 2024 (U13 Boys)
2024/02/24
2024/02/24
Eden District (WEG)
Standard
60
0.83
5
4
2.0
1176.5
1171.6
Analysis
1
Kannaland Proewe 1 (U13 Boys)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
4
0.0
1176.5
1171.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
8
Western Cape PS Individuals Championship 2024 (U13 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
2.0
1219.2
1222.3
Analysis
7
Eden School Chess Trials 1 2024 (U13 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
3.5
1150.5
1142.4
Analysis
6
Kannaland Proewe 2 2024 (U13 Boys)
2024/02/24
2024/02/24
Eden District (WEG)
Standard
60
0.83
5
4
2.0
1176.5
1171.6
Analysis
5
Kannaland Proewe 1 (U13 Boys)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
4
0.0
1176.5
1171.6
Analysis
4
Eden Top Schools 2023 (U13 Mix)
2023/08/19
2023/08/19
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1151.7
1141.0
Analysis
3
Eden Trials 2+3 2023 (U14)
2023/04/15
2023/05/13
Eden District (WEG)
Standard
60
0.83
10
4
0.0
1198.3
1196.8
Analysis
2
Eden Trails 1 2023 (U13 Boys)
2023/03/11
2023/03/11
Eden District (WEG)
Standard
60
0.83
5
5
2.0
1215.3
1218.4
Analysis
1
Kannaland Proewe 1 2023 (U11+U13 Boys)
2023/02/18
2023/02/18
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
19
7
1
11
7.5
39.5
-89.5
1319.4
1229.9
White
10
2
1
7
2.5
25.0
-212.5
1317.9
1105.4
Black
9
5
0
4
5.0
55.6
47.2
1321.1
1368.3
Standard
All
19
7
1
11
7.5
39.5
-89.5
1319.4
1229.9
White
10
2
1
7
2.5
25.0
-212.5
1317.9
1105.4
Black
9
5
0
4
5.0
55.6
47.2
1321.1
1368.3
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
38
15
1
22
15.5
40.8
-78.3
1273.0
1194.7
White
21
5
1
15
5.5
26.2
-202.4
1268.9
1066.5
Black
17
10
0
7
10.0
58.8
75.0
1278.0
1353.0
Standard
All
38
15
1
22
15.5
40.8
-78.3
1273.0
1194.7
White
21
5
1
15
5.5
26.2
-202.4
1268.9
1066.5
Black
17
10
0
7
10.0
58.8
75.0
1278.0
1353.0
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1110150947
Van Der Berg, J (Janelle)
3
3.0
3
0
0
100.0
1176.1
425.0
1601.1
View list
2
1120150944
Pretorius, I (Immanuel)
3
1.0
1
0
2
33.3
1184.3
-141.7
1042.7
View list
3
1110190089
Claassen, A (Aiden)
2
0.0
0
0
2
0.0
1176.5
-425.0
751.5
View list
4
1100149864
Cook, E (Ethan)
1
1.0
1
0
0
100.0
1215.3
425.0
1640.3
View list
5
1120152560
Branco, J (Joshua)
1
1.0
1
0
0
100.0
1151.7
425.0
1576.7
View list
6
1120156901
Fortuin, H (Haywill)
1
1.0
1
0
0
100.0
1219.2
425.0
1644.2
View list
7
1110161658
Julius, G (Gio)
1
1.0
1
0
0
100.0
1176.5
425.0
1601.5
View list
8
1110108531
Joseph, W (William)
1
1.0
1
0
0
100.0
1150.5
425.0
1575.5
View list
9
1100098398
Jonas, D (Damian)
1
1.0
1
0
0
100.0
1215.3
425.0
1640.3
View list
10
1110151034
Januarie, C (Cedwyn)
1
1.0
1
0
0
100.0
1150.5
425.0
1575.5
View list
11
1100150942
Pieterse, A (Alwin)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
12
1120145242
Prinsloo, J (Jaco)
1
1.0
1
0
0
100.0
1219.2
425.0
1644.2
View list
13
1110193151
Stuurman, D (Dante)
1
1.0
1
0
0
100.0
1150.5
425.0
1575.5
View list
14
1100148852
Vrolik, J (Jean-Paul)
1
1.0
1
0
0
100.0
1151.7
425.0
1576.7
View list
15
1120161647
Matanase, A (Akohlulwa)
1
0.5
0
1
0
50.0
1150.5
0.0
1150.5
View list
16
1100131365
Michaels, J (Joshua)
1
0.0
0
0
1
0.0
1215.3
-425.0
790.3
View list
17
1110135813
Coleman, A (Anthony)
1
0.0
0
0
1
0.0
1219.2
-425.0
794.2
View list
18
1110158220
Majiet, C (Clayton)
1
0.0
0
0
1
0.0
1151.7
-425.0
726.7
View list
19
1120150940
Lot, A (Alexio)
1
0.0
0
0
1
0.0
1176.5
-425.0
751.5
View list
20
1110132074
Kwabe, A (Awonke)
1
0.0
0
0
1
0.0
1219.2
-425.0
794.2
View list