Chess South Africa
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Chess South Africa
Kalpens, B (Bonga)
Dob:
2006/05/11 (U20)
Gender:
Male
Chess SA id:
1060302967
FIDE id:
Region:
Overberg (WOS)
Citizen:
RSA
Title(s):
Last active:
2024/09/01 (18 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
1205.8
Current Weighted rating
1205.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1205.8
Current highest rating achieved
1222.8
Current floor (min rating allowed)
722.8
Current K-factor
36
Games played this month
6
Score (S)
2.0
Expected score (We)
1.45
Difference (S-We)
0.46
Current Raw change (no limits, including tournament time weight)
16.4
Current min/max change allowed (with limits)
±164.5
Current Raw change used (final)
16.4
Projected new Raw rating
1222.2
Projected new Weighed rating
1109.4
Projected new Weighted performance
970.8
Projected new final Raw rating (if new WP > new Raw)
1222.2
Projected new highest rating
1222.8
Projected new floor
722.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1222.2
Projected effective change (new Official - current Official)
+16.4
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
1176.4
Current Weighted rating
1196.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1196.3
Current highest rating achieved
1176.4
Current floor (min rating allowed)
676.4
Current K-factor
40
Games played this month
6
Score (S)
2.0
Expected score (We)
1.43
Difference (S-We)
0.57
Current Raw change (no limits, including tournament time weight)
22.8
Current min/max change allowed (with limits)
±171.5
Current Raw change used (final)
22.8
Projected new Raw rating
1199.2
Projected new Weighed rating
1100.5
Projected new Weighted performance
726.2
Projected new final Raw rating (if new WP > new Raw)
1199.2
Projected new highest rating
1199.2
Projected new floor
699.2
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1199.2
Projected effective change (new Official - current Official)
+2.9
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
1224.0
Current Weighted rating
1208.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1224.0
Current highest rating achieved
1224.0
Current floor (min rating allowed)
724.0
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)
±160.2
Current Raw change used (final)
0.0
Projected new Raw rating
1224.0
Projected new Weighed rating
1112.4
Projected new Weighted performance
429.2
Projected new final Raw rating (if new WP > new Raw)
1224.0
Projected new highest rating
1224.0
Projected new floor
724.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1224.0
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
Tournament:
Western Cape Top Schools Championship 2024 (U18 Mixed)
Start:
2024/08/30
End:
2024/09/01
Host:
WEG
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
6
Games:
6
Score:
2.0
Main rating:
1205.8
Rating gain/loss:
16.4
Type rating:
1176.4
Rating gain/loss:
22.8
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
3
Western Cape Top Schools Championship 2024 (U18 Mixed)
2024/08/30
2024/09/01
Eden (WEG)
Standard
60
0.83
6
6
2.0
1205.8
1176.4
Analysis
2
Overberg Schools - Top Schools 2024 (U18 Mixed)
2024/07/27
2024/07/27
Overberg (WOS)
Standard
60
0.83
5
4
1.0
1222.8
1200.0
Analysis
1
Curro Hermanus Freedom Day Rapid 2024 (U19)
2024/04/27
2024/04/27
Overberg (WOS)
Rapid
30
0.60
5
5
3.0
1200.0
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
3
Western Cape Top Schools Championship 2024 (U18 Mixed)
2024/08/30
2024/09/01
Eden (WEG)
Standard
60
0.83
6
6
2.0
1205.8
1176.4
Analysis
2
Overberg Schools - Top Schools 2024 (U18 Mixed)
2024/07/27
2024/07/27
Overberg (WOS)
Standard
60
0.83
5
4
1.0
1222.8
1200.0
Analysis
1
Curro Hermanus Freedom Day Rapid 2024 (U19)
2024/04/27
2024/04/27
Overberg (WOS)
Rapid
30
0.60
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
15
6
0
9
6.0
40.0
-85.0
1360.1
1275.1
White
6
2
0
4
2.0
33.3
-141.7
1302.6
1161.0
Black
9
4
0
5
4.0
44.4
-47.2
1398.3
1351.1
Standard
All
10
3
0
7
3.0
30.0
-170.0
1405.1
1235.1
White
4
1
0
3
1.0
25.0
-212.5
1351.3
1138.8
Black
6
2
0
4
2.0
33.3
-141.7
1441.0
1299.3
Rapid
All
5
3
0
2
3.0
60.0
85.0
1269.9
1354.9
White
2
1
0
1
1.0
50.0
0.0
1205.3
1205.3
Black
3
2
0
1
2.0
66.7
141.7
1313.0
1454.7
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
15
6
0
9
6.0
40.0
-85.0
1360.1
1275.1
White
6
2
0
4
2.0
33.3
-141.7
1302.6
1161.0
Black
9
4
0
5
4.0
44.4
-47.2
1398.3
1351.1
Standard
All
10
3
0
7
3.0
30.0
-170.0
1405.1
1235.1
White
4
1
0
3
1.0
25.0
-212.5
1351.3
1138.8
Black
6
2
0
4
2.0
33.3
-141.7
1441.0
1299.3
Rapid
All
5
3
0
2
3.0
60.0
85.0
1269.9
1354.9
White
2
1
0
1
1.0
50.0
0.0
1205.3
1205.3
Black
3
2
0
1
2.0
66.7
141.7
1313.0
1454.7
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
1060154664
Olivier, J (Jonathan)
2
1.0
1
0
1
50.0
1211.4
0.0
1211.4
View list
2
1060193524
Davids, M (Michael)
1
1.0
1
0
0
100.0
1205.8
425.0
1630.8
View list
3
2060133337
Cloete, L (Lynne)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
4
1060138388
Hendricks, G (Guevante)
1
1.0
1
0
0
100.0
1205.8
425.0
1630.8
View list
5
1070154640
Brand, F (Francois)
1
1.0
1
0
0
100.0
1222.8
425.0
1647.8
View list
6
1050302968
Swingler, A (Alex)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
106088975
Samuels, Z (Zeldo)
1
0.0
0
0
1
0.0
1222.8
-425.0
797.8
View list
8
108083939
Rosenberg, W (Wagheed)
1
0.0
0
0
1
0.0
1205.8
-425.0
780.8
View list
9
2100138624
Reid, H (Hannah)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
10
1060138412
Harmse, J (Jacques)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
11
1060138411
Harmse, D (Deon)
1
0.0
0
0
1
0.0
1222.8
-425.0
797.8
View list
12
108051707
De Wit, M (Marnus)
1
0.0
0
0
1
0.0
1205.8
-425.0
780.8
View list
13
1100130764
Claassen, R (Raynier)
1
0.0
0
0
1
0.0
1205.8
-425.0
780.8
View list
14
206061317
Brandt, M (Mia)
1
0.0
0
0
1
0.0
1205.8
-425.0
780.8
View list