Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Greef, S (Schalk)
Dob:
2006/08/31 (U20)
Gender:
Male
Chess SA id:
106060687
FIDE id:
Greef
Region:
West Rand (GWR)
Citizen:
RSA
Title(s):
Last active:
2023/10/14 (388 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
1330.8
Current Weighted rating
1329.3
Current Weighted performance
1060.7
Current official/published rating (highest between Raw, WR and WP)
1330.8
Current highest rating achieved
1501.1
Current floor (min rating allowed)
1001.1
Current K-factor
32
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)
±137.6
Current Raw change used (final)
0.0
Projected new Raw rating
1330.8
Projected new Weighed rating
1223.2
Projected new Weighted performance
1060.7
Projected new final Raw rating (if new WP > new Raw)
1330.8
Projected new highest rating
1501.1
Projected new floor
1001.1
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1330.8
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
1328.4
Current Weighted rating
1326.7
Current Weighted performance
1060.7
Current official/published rating (highest between Raw, WR and WP)
1328.4
Current highest rating achieved
1499.9
Current floor (min rating allowed)
999.9
Current K-factor
32
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)
±138.1
Current Raw change used (final)
0.0
Projected new Raw rating
1328.4
Projected new Weighed rating
1220.8
Projected new Weighted performance
1060.7
Projected new final Raw rating (if new WP > new Raw)
1328.4
Projected new highest rating
1499.9
Projected new floor
999.9
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1328.4
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
1060.6
Current Weighted rating
975.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1060.6
Current highest rating achieved
1060.6
Current floor (min rating allowed)
560.6
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)
±202.2
Current Raw change used (final)
0.0
Projected new Raw rating
1060.6
Projected new Weighed rating
903.1
Projected new Weighted performance
251.8
Projected new final Raw rating (if new WP > new Raw)
1060.6
Projected new highest rating
1060.6
Projected new floor
560.6
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1060.6
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
725.4
Current Weighted rating
725.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
725.4
Current highest rating achieved
739.0
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)
±326.1
Current Raw change used (final)
0.0
Projected new Raw rating
725.4
Projected new Weighed rating
667.4
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
739.0
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
725.4
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
39
Paarl Boys High Chess Festival 2023 (Elite Division)
2023/10/13
2023/10/14
Cape Winelands (WCW)
Standard
60
0.83
6
6
3.0
1327.6
1324.9
Analysis
38
D2 School League Finals 2023 (U19)
2023/07/22
2023/07/22
West Rand (GWR)
Standard
60
0.83
5
5
3.0
1317.8
1313.1
Analysis
37
2022 South African Junior Team Chess Championships (U18 Open)
2022/12/04
2022/12/08
4 Knights (4K)
Standard
120
1.00
7
7
1.5
1358.8
1349.3
Analysis
36
JMC 3rd Trials 2022 (B)
2022/09/11
2022/09/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1369.7
1363.4
Analysis
35
2022 Gauteng Schools Team Championships (U19 Open)
2022/08/26
2022/08/26
Tshwane (GTP)
Standard
60
0.83
5
4
1.0
1401.0
1401.8
Analysis
34
D2 School League Finals 2022 (U18)
2022/08/20
2022/08/20
West Rand (GWR)
Standard
60
0.83
5
5
3.5
1401.0
1401.8
Analysis
33
JNW Helpmekaar 2022 (Challengers)
2022/07/09
2022/07/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1422.8
1429.3
Analysis
32
2022 Gauteng Interregion (U16 Open)
2022/02/26
2022/02/26
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1422.3
1433.5
Analysis
31
JMC Charterhouse Open 2022 (B)
2022/02/12
2022/02/12
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1422.3
1433.5
Analysis
30
2021 Milos Ristic Open (B)
2021/10/09
2021/10/09
Tshwane (GTP)
Standard
60
0.83
5
4
2.0
1426.0
1442.1
Analysis
29
JMC Helpmekaar 2021 (U16)
2021/09/06
2021/09/06
Johannesburg Metro (GJM)
Rapid
30
0.60
5
5
2.0
1449.0
725.4
Analysis
28
JNW Club - Trinityhouse Randpark Ridge Open 2020 (B)
2020/02/22
2020/02/22
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1439.2
1429.3
Analysis
27
2019 South African Junior Team Championships (U14B)
2020/01/04
2020/01/08
4 Knights (4K)
Standard
120
1.00
7
7
4.0
1459.7
1447.2
Analysis
26
The Joburg Open 2019 (Masters)
2019/10/12
2019/10/12
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1501.1
1499.9
Analysis
25
GJM vs GE Inter Region 2019 (U14B)
2019/10/05
2019/10/05
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
1.5
1501.1
1499.9
Analysis
24
The King`s Cup League - Stage 2 2019 (B)
2019/09/07
2019/09/07
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.5
1411.8
1412.0
Analysis
23
2019 Gauteng School League Finals (U13 Open)
2019/08/23
2019/08/23
Tshwane (GTP)
Standard
60
0.83
5
5
5.0
1212.6
1204.9
Analysis
22
D2 League Finals 2019 (U13 Mix)
2019/08/03
2019/08/03
West Rand (GWR)
Standard
60
0.83
7
6
6.0
1212.6
1204.9
Analysis
21
JNW Club - Helpmekaar Kollege Open 2019 (C)
2019/07/06
2019/07/06
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1212.0
1202.7
Analysis
20
Chess Heroes Junior Tournament 2019 (A)
2019/06/22
2019/06/22
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1237.1
1231.9
Analysis
1
2
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
205
99
43
63
120.5
58.8
74.6
1165.2
1239.8
White
100
57
21
22
67.5
67.5
148.8
1169.5
1318.2
Black
105
42
22
41
53.0
50.5
4.0
1161.1
1165.1
Standard
All
200
97
43
60
118.5
59.3
78.6
1160.9
1239.5
White
97
55
21
21
65.5
67.5
149.0
1165.4
1314.4
Black
103
42
22
39
53.0
51.5
12.4
1156.7
1169.1
Rapid
All
5
2
0
3
2.0
40.0
-85.0
1335.5
1250.5
White
3
2
0
1
2.0
66.7
141.7
1301.2
1442.8
Black
2
0
0
2
0.0
0.0
-425.0
1386.9
961.9
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
106060686
Greef, J (Janus)
4
1.5
0
3
1
37.5
1193.2
-106.3
1086.9
View list
2
109086017
Roetz, K (Kyle)
3
2.5
2
1
0
83.3
1245.0
283.3
1528.3
View list
3
205048914
Shaw, A (Amy)
3
1.5
1
1
1
50.0
1176.6
0.0
1176.6
View list
4
111092701
Deysel, K (Kaleb)
3
1.0
1
0
2
33.3
1429.2
-141.7
1287.5
View list
5
107078828
Johnson, C (Caleb)
3
1.0
1
0
2
33.3
1288.1
-141.7
1146.4
View list
6
106003263
Bouwer, ER (Evan)
2
2.0
2
0
0
100.0
936.8
425.0
1361.8
View list
7
106071110
Jonker, P (Philip)
2
2.0
2
0
0
100.0
929.0
425.0
1354.0
View list
8
106064846
Nieuwoudt, R (Regardt)
2
2.0
2
0
0
100.0
943.9
425.0
1368.8
View list
9
109076140
Jones, E (Edward)
2
1.5
1
1
0
75.0
1432.6
212.5
1645.1
View list
10
1080099597
Rossouw, W (Wessel Johannes)
2
1.5
1
1
0
75.0
1303.4
212.5
1515.9
View list
11
106050282
Voigt, H (Heinrich)
2
1.5
1
1
0
75.0
1372.4
212.5
1584.9
View list
12
201081372
Guliwe, L (Lwandile)
2
1.0
1
0
1
50.0
1311.9
0.0
1311.9
View list
13
106092692
Hausberger, J (Justin)
2
1.0
1
0
1
50.0
1336.3
0.0
1336.3
View list
14
103064968
Steyn, C (Corne)
2
1.0
1
0
1
50.0
906.5
0.0
906.5
View list
15
106064421
Brandt, DW (Declan William)
2
0.5
0
1
1
25.0
1184.1
-212.5
971.6
View list
16
105056908
Mahajan, S (Shaunak)
2
0.5
0
1
1
25.0
855.8
-212.5
643.3
View list
17
1060103469
Naidoo, T (Tyrelle)
2
0.5
0
1
1
25.0
1214.1
-212.5
1001.6
View list
18
107090302
Setshedi, N (Neo)
2
0.5
0
1
1
25.0
1411.7
-212.5
1199.2
View list
19
106084365
Singh, N (Nimai)
2
0.0
0
0
2
0.0
1034.8
-425.0
609.8
View list
20
205069709
Bothma, I (Isabella)
1
1.0
1
0
0
100.0
1153.2
425.0
1578.2
View list