Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Van Der Merwe, J (Johannes)
Dob:
2002/01/07 (Adult)
Gender:
Male
Chess SA id:
1020162661
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2023/10/14 (256 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
1104.7
Current Weighted rating
1140.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1140.2
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)
±189.9
Current Raw change used (final)
0.0
Projected new Raw rating
1104.7
Projected new Weighed rating
1047.2
Projected new Weighted performance
411.8
Projected new final Raw rating (if new WP > new Raw)
1104.7
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)
1104.7
Projected effective change (new Official - current Official)
-35.5
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
1140.6
Current Weighted rating
1164.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1164.4
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)
±180.5
Current Raw change used (final)
0.0
Projected new Raw rating
1140.6
Projected new Weighed rating
1070.1
Projected new Weighted performance
229.8
Projected new final Raw rating (if new WP > new Raw)
1140.6
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)
1140.6
Projected effective change (new Official - current Official)
-23.8
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
1086.6
Current Weighted rating
1126.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1126.3
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)
±194.9
Current Raw change used (final)
0.0
Projected new Raw rating
1086.6
Projected new Weighed rating
1034.1
Projected new Weighted performance
239.4
Projected new final Raw rating (if new WP > new Raw)
1086.6
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)
1086.6
Projected effective change (new Official - current Official)
-39.7
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
NWU Vaal Open 2023 (A)
2023/10/14
2023/10/14
Sedibeng (GSV)
Standard
61
0.83
5
3
0.0
1147.1
1200.0
Analysis
1
Wits University 100 Chess Tournament 2023
2023/09/30
2023/09/30
Johannesburg Metro (GJM)
Rapid
30
0.60
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
8
0
0
8
0.0
0.0
-425.0
1203.1
778.1
White
5
0
0
5
0.0
0.0
-425.0
1190.5
765.5
Black
3
0
0
3
0.0
0.0
-425.0
1224.1
799.1
Standard
All
3
0
0
3
0.0
0.0
-425.0
1180.7
755.7
White
2
0
0
2
0.0
0.0
-425.0
1151.0
726.0
Black
1
0
0
1
0.0
0.0
-425.0
1239.9
814.9
Rapid
All
5
0
0
5
0.0
0.0
-425.0
1216.5
791.5
White
3
0
0
3
0.0
0.0
-425.0
1216.7
791.7
Black
2
0
0
2
0.0
0.0
-425.0
1216.2
791.2
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
204054376
Sithole, J (Jabulile)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
2
2990162660
Shongwe, L (Lusanda)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
3
101083223
Mooki, R (Remofilwe)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
4
2990148126
Moje, L (Lethabo)
1
0.0
0
0
1
0.0
1147.1
-425.0
722.1
View list
5
1980147199
Mkhuma, S (Smangaliso Mbekezeli)
1
0.0
0
0
1
0.0
1147.1
-425.0
722.1
View list
6
1030151833
Loeto, M (Mogale)
1
0.0
0
0
1
0.0
1147.1
-425.0
722.1
View list
7
2040114902
Lambiso, ME (Matlakala)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
8
199080918
Gaetsosiwe, B (Bokamoso)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list