Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Retief, WJ (Willem)
Dob:
2009/02/10 (U16)
Gender:
Male
Chess SA id:
109078395
FIDE id:
Region:
Dr Kenneth Kaunda (NWP)
Citizen:
RSA
Title(s):
Last active:
2019/05/04 (1881 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
962.7
Current Weighted rating
962.7
Current Weighted performance
302.7
Current official/published rating (highest between Raw, WR and WP)
962.7
Current highest rating achieved
962.7
Current floor (min rating allowed)
500.0
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)
±232.5
Current Raw change used (final)
0.0
Projected new Raw rating
962.7
Projected new Weighed rating
885.7
Projected new Weighted performance
302.7
Projected new final Raw rating (if new WP > new Raw)
962.7
Projected new highest rating
962.7
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
962.7
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
969.7
Current Weighted rating
969.7
Current Weighted performance
281.8
Current official/published rating (highest between Raw, WR and WP)
969.7
Current highest rating achieved
969.7
Current floor (min rating allowed)
500.0
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)
±230.2
Current Raw change used (final)
0.0
Projected new Raw rating
969.7
Projected new Weighed rating
892.1
Projected new Weighted performance
281.8
Projected new final Raw rating (if new WP > new Raw)
969.7
Projected new highest rating
969.7
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
969.7
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
573.0
Current Weighted rating
573.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
573.0
Current highest rating achieved
573.0
Current floor (min rating allowed)
500.0
Current K-factor
40
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)
±405.1
Current Raw change used (final)
0.0
Projected new Raw rating
573.0
Projected new Weighed rating
527.2
Projected new Weighted performance
163.5
Projected new final Raw rating (if new WP > new Raw)
573.0
Projected new highest rating
573.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
573.0
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
517.0
Current Weighted rating
517.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
517.0
Current highest rating achieved
517.0
Current floor (min rating allowed)
500.0
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)
±438.8
Current Raw change used (final)
0.0
Projected new Raw rating
517.0
Projected new Weighed rating
475.6
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
517.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
517.0
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
10
2019 Super 12 Laerskole (Juniors)
2019/05/04
2019/05/04
Tshwane (GTP)
Rapid
30
0.60
5
5
1.5
960.5
545.8
Analysis
9
South African Junior Team Championships 2018 (U10A)
2018/12/16
2018/12/20
4 Knights (4K)
Standard
120
1.00
7
7
2.0
943.5
969.7
Analysis
8
Matlosana Mall 2018 (U10)
2018/10/20
2018/10/20
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
3.0
907.8
936.1
Analysis
7
Boys and Girls 2018 (U10 Boys)
2018/08/25
2018/08/25
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
4
2.0
894.5
922.3
Analysis
6
Driefontein Proewe 2018 (O10 Seuns)
2018/07/28
2018/07/28
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
2.0
907.1
804.6
Analysis
5
Volkies 2018 (U10)
2018/05/12
2018/05/12
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
3.0
715.5
756.2
Analysis
4
2018 Super 12 (Junior)
2018/05/05
2018/05/05
Tshwane (GTP)
Rapid
30
0.60
5
5
2.0
715.5
517.0
Analysis
3
Hervormde Kerk 2018 (U10)
2018/04/21
2018/04/21
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
3.0
641.8
667.4
Analysis
2
Wesvalia 2018 (U10)
2018/02/17
2018/02/17
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
3.0
517.0
517.0
Analysis
1
Laerskool Volkskool 2018 (U10)
2018/02/03
2018/02/03
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
3.0
517.0
517.0
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
51
23
3
25
24.5
48.0
-16.7
971.9
955.2
White
26
12
1
13
12.5
48.1
-16.3
955.2
938.9
Black
25
11
2
12
12.0
48.0
-17.0
989.2
972.2
Standard
All
41
20
2
19
21.0
51.2
10.4
963.8
974.2
White
21
10
1
10
10.5
50.0
0.0
945.8
945.8
Black
20
10
1
9
10.5
52.5
21.3
982.7
1004.0
Rapid
All
10
3
1
6
3.5
35.0
-127.5
1005.1
877.6
White
5
2
0
3
2.0
40.0
-85.0
994.9
909.9
Black
5
1
1
3
1.5
30.0
-170.0
1015.4
845.4
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
109078401
Botha, P (Philip)
3
3.0
3
0
0
100.0
713.4
425.0
1138.4
View list
2
110092740
Fourie, A (Alex)
3
2.5
2
1
0
83.3
642.8
283.3
926.2
View list
3
109073262
Van Straaten, P (Petrus)
3
0.0
0
0
3
0.0
642.8
-425.0
217.8
View list
4
109093330
Krugel, L (Lian)
2
2.0
2
0
0
100.0
616.3
425.0
1041.3
View list
5
109080771
Groenewald, B (Ben)
2
2.0
2
0
0
100.0
811.6
425.0
1236.7
View list
6
209095218
Williams, C (Caitlyn)
2
2.0
2
0
0
100.0
774.8
425.0
1199.8
View list
7
210087195
Fourie, M (Mila)
2
1.0
1
0
1
50.0
517.0
0.0
517.0
View list
8
210095076
Hattingh, S (Salome)
2
1.0
1
0
1
50.0
678.6
0.0
678.6
View list
9
209083403
Havenga, S (Shaylee)
1
1.0
1
0
0
100.0
641.8
425.0
1066.8
View list
10
209095217
Gird, D (Denieke)
1
1.0
1
0
0
100.0
517.0
425.0
942.0
View list
11
110084943
Ackerman, J (Johandre)
1
1.0
1
0
0
100.0
907.1
425.0
1332.1
View list
12
1090096181
Kotze, L (Lukas)
1
1.0
1
0
0
100.0
907.1
425.0
1332.1
View list
13
109083901
Botha, OJ (Owen)
1
1.0
1
0
0
100.0
943.5
425.0
1368.5
View list
14
109086162
Sekhute, K (Khumo)
1
1.0
1
0
0
100.0
894.5
425.0
1319.5
View list
15
208086359
Smith, LM (Luhane)
1
1.0
1
0
0
100.0
715.5
425.0
1140.5
View list
16
1080101014
Thompson, S (Skyla)
1
1.0
1
0
0
100.0
715.5
425.0
1140.5
View list
17
1110114804
Weitz, E (Eben)
1
1.0
1
0
0
100.0
960.5
425.0
1385.5
View list
18
109075156
Wolmarans, CH (Cornelius)
1
1.0
1
0
0
100.0
943.5
425.0
1368.5
View list
19
109086534
Erlank, BG (Brandon)
1
0.5
0
1
0
50.0
960.5
0.0
960.5
View list
20
209087184
De Bruyn, C (Chanique)
1
0.5
0
1
0
50.0
517.0
0.0
517.0
View list