Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Van Der Merwe, W (Wiehan)
Dob:
1987/12/15 (Adult)
Gender:
Male
Chess SA id:
187039332
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2022/09/25 (602 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
1308.1
Curent Weighted rating
1273.8
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1308.1
Current floor (min rating allowed)
808.1
Current highest rating achieved
1308.1
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)
±142.1
Current Raw change used (final)
0.0
Projected new Raw rating
1308.1
Projected new Weighed rating
1277.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1308.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1308.1
Projected new floor
808.1
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
1313.8
Curent Weighted rating
1276.8
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1313.8
Current floor (min rating allowed)
813.8
Current highest rating achieved
1313.8
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)
±141.0
Current Raw change used (final)
0.0
Projected new Raw rating
1313.8
Projected new Weighed rating
1281.0
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1313.8
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1313.8
Projected new floor
813.8
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
1300.0
Curent Weighted rating
1236.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1300.0
Current floor (min rating allowed)
800.0
Current highest rating achieved
1300.0
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)
±143.8
Current Raw change used (final)
0.0
Projected new Raw rating
1300.0
Projected new Weighed rating
1243.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1300.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1300.0
Projected new floor
800.0
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
1300.0
Curent Weighted rating
1236.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1300.0
Current floor (min rating allowed)
800.0
Current highest rating achieved
1300.0
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)
±143.8
Current Raw change used (final)
0.0
Projected new Raw rating
1300.0
Projected new Weighed rating
1243.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1300.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1300.0
Projected new floor
800.0
Projected new K-facor
36
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
Western Cape Closed Championship 2022 (Open)
2022/09/24
2022/09/25
Cape Winelands (WCW)
Standard
70
0.87
6
6
5.0
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
6
5
0
1
5.0
83.3
283.3
1143.6
1426.9
White
3
3
0
0
3.0
100.0
425.0
1202.7
1627.7
Black
3
2
0
1
2.0
66.7
141.7
1084.5
1226.2
Standard
All
6
5
0
1
5.0
83.3
283.3
1143.6
1426.9
White
3
3
0
0
3.0
100.0
425.0
1202.7
1627.7
Black
3
2
0
1
2.0
66.7
141.7
1084.5
1226.2
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
208069933
Sihamba, S (Somila)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
107082126
Saoud, J (Jassem)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
268080006
Rossouw, J (Joan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
4
100069613
Mintoor, D (Donvito)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
5
1020146853
Coetzee, E (Etienne)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
1760146855
Swarts, P (Paul)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
