Chess South Africa
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Chess South Africa
Greef, J (Janus)
Dob:
2006/08/31 (U20)
Gender:
Male
Chess SA id:
106060686
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2023/10/14 (209 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
1404.1
Curent Weighted rating
1401.0
Curent Weighted performance
1257.9
Current official/published rating (highest between Raw, WR and WP)
1404.1
Current floor (min rating allowed)
916.3
Current highest rating achieved
1416.3
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)
±124.0
Current Raw change used (final)
0.0
Projected new Raw rating
1404.1
Projected new Weighed rating
1401.8
Projected new Weighted performance
1257.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1404.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1416.3
Projected new floor
916.3
Projected new K-facor
32
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
1403.6
Curent Weighted rating
1401.0
Curent Weighted performance
1256.2
Current official/published rating (highest between Raw, WR and WP)
1403.6
Current floor (min rating allowed)
921.8
Current highest rating achieved
1421.8
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)
±124.1
Current Raw change used (final)
0.0
Projected new Raw rating
1403.6
Projected new Weighed rating
1401.9
Projected new Weighted performance
1256.2
Projected new official/published rating (highest between new Raw, new WR and new WP)
1403.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1421.8
Projected new floor
921.8
Projected new K-facor
32
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
879.6
Curent Weighted rating
841.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
879.6
Current floor (min rating allowed)
500.0
Current highest rating achieved
879.6
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)
±261.7
Current Raw change used (final)
0.0
Projected new Raw rating
879.6
Projected new Weighed rating
844.8
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
879.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
879.6
Projected new floor
500.0
Projected new K-facor
40
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
764.6
Curent Weighted rating
764.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
764.6
Current floor (min rating allowed)
500.0
Current highest rating achieved
764.6
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)
±308.3
Current Raw change used (final)
0.0
Projected new Raw rating
764.6
Projected new Weighed rating
764.6
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
764.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
764.6
Projected new floor
500.0
Projected new K-facor
40
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
2.0
1416.3
1421.8
Analysis
38
D2 School League Finals 2023 (U19)
2023/07/22
2023/07/22
West Rand (GWR)
Standard
60
0.83
5
5
4.0
1389.7
1389.8
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
2.5
1394.0
1392.7
Analysis
36
JMC 3rd Trials 2022 (B)
2022/09/11
2022/09/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1334.8
1310.9
Analysis
35
2022 Gauteng Schools Team Championships (U19 Open)
2022/08/26
2022/08/26
Tshwane (GTP)
Standard
60
0.83
5
4
2.0
1360.2
1328.5
Analysis
34
D2 School League Finals 2022 (U18)
2022/08/20
2022/08/20
West Rand (GWR)
Standard
60
0.83
5
5
2.0
1360.2
1328.5
Analysis
33
JNW Helpmekaar 2022 (Challengers)
2022/07/09
2022/07/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1381.1
1348.3
Analysis
32
2022 Gauteng Interregion (U16 Open)
2022/02/26
2022/02/26
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1272.0
1270.3
Analysis
31
JMC Charterhouse Open 2022 (B)
2022/02/12
2022/02/12
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1272.0
1270.3
Analysis
30
2021 Milos Ristic Open (C)
2021/10/09
2021/10/09
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1239.7
1228.9
Analysis
29
JMC Helpmekaar 2021 (U16)
2021/09/06
2021/09/06
Johannesburg Metro (GJM)
Rapid
30
0.60
5
5
2.5
1227.2
764.6
Analysis
28
JNW Club - Trinityhouse Randpark Ridge Open 2020 (C)
2020/02/22
2020/02/22
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1162.9
1155.5
Analysis
27
2019 South African Junior Team Championships (U14B)
2020/01/04
2020/01/08
4 Knights (4K)
Standard
120
1.00
7
7
0.5
1274.1
1268.5
Analysis
26
The Joburg Open 2019 (Masters)
2019/10/12
2019/10/12
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1265.2
1264.4
Analysis
25
GJM vs GE Inter Region 2019 (U14D)
2019/10/05
2019/10/05
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1265.2
1264.4
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
3.0
1241.5
1242.8
Analysis
23
2019 Gauteng School League Finals (U13 Open)
2019/08/23
2019/08/23
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1116.7
1122.1
Analysis
22
D2 League Finals 2019 (U13 Mix)
2019/08/03
2019/08/03
West Rand (GWR)
Standard
60
0.83
7
6
5.0
1116.7
1122.1
Analysis
21
JNW Club - Helpmekaar Kollege Open 2019 (C)
2019/07/06
2019/07/06
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1110.7
1116.5
Analysis
20
Chess Heroes Junior Tournament 2019 (A)
2019/06/22
2019/06/22
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1057.2
1042.9
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
204
92
34
78
109.0
53.4
29.2
1158.3
1187.5
White
102
48
20
34
58.0
56.9
58.3
1189.8
1248.1
Black
102
44
14
44
51.0
50.0
0.0
1126.9
1126.9
Standard
All
199
90
33
76
106.5
53.5
29.9
1153.9
1183.8
White
99
46
20
33
56.0
56.6
55.8
1186.7
1242.5
Black
100
44
13
43
50.5
50.5
4.3
1121.4
1125.7
Rapid
All
5
2
1
2
2.5
50.0
0.0
1333.8
1333.8
White
3
2
0
1
2.0
66.7
141.7
1290.7
1432.4
Black
2
0
1
1
0.5
25.0
-212.5
1398.5
1186.0
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
106060687
Greef, S (Schalk)
4
2.5
1
3
0
62.5
1062.0
106.3
1168.2
View list
2
108073208
Steyn, T (Tjaart)
3
1.0
1
0
2
33.3
1098.0
-141.7
956.3
View list
3
106064421
Brandt, DW (Declan William)
3
0.5
0
1
2
16.7
1091.4
-283.3
808.0
View list
4
103064968
Steyn, C (Corne)
3
0.0
0
0
3
0.0
1064.4
-425.0
639.4
View list
5
208071873
Chinoruma, T (Tawana)
2
2.0
2
0
0
100.0
1094.2
425.0
1519.2
View list
6
204079859
Fauconier, C (Caley)
2
2.0
2
0
0
100.0
1008.3
425.0
1433.3
View list
7
106069421
Mofokeng, K (Kamohelo)
2
2.0
2
0
0
100.0
986.5
425.0
1411.5
View list
8
1110102387
Smith, Z (Zion)
2
2.0
2
0
0
100.0
1142.4
425.0
1567.4
View list
9
106092806
Chabangu, M (Mahlori)
2
1.0
1
0
1
50.0
919.7
0.0
919.7
View list
10
108073207
Horn, E (Evan)
2
1.0
1
0
1
50.0
1239.9
0.0
1239.9
View list
11
205048914
Shaw, A (Amy)
2
1.0
1
0
1
50.0
1021.5
0.0
1021.5
View list
12
106050282
Voigt, H (Heinrich)
2
1.0
0
2
0
50.0
1163.0
0.0
1163.0
View list
13
206091525
Nel, H (Hayley)
2
0.5
0
1
1
25.0
1106.5
-212.5
894.0
View list
14
108085070
Moustakis, C (Costa)
2
0.0
0
0
2
0.0
1078.0
-425.0
653.0
View list
15
209092675
Ramlall, S (Sanjana)
2
0.0
0
0
2
0.0
1067.3
-425.0
642.3
View list
16
106084365
Singh, N (Nimai)
2
0.0
0
0
2
0.0
907.0
-425.0
482.0
View list
17
105067554
Croukamp, MMC (Michael)
1
1.0
1
0
0
100.0
1389.7
425.0
1814.7
View list
18
106079487
Collins, JP (Johannes)
1
1.0
1
0
0
100.0
1116.7
425.0
1541.7
View list
19
106066125
Cloete, D (Daniel)
1
1.0
1
0
0
100.0
1106.9
425.0
1531.9
View list
20
1060100309
Ackerman, E (Ethan)
1
1.0
1
0
0
100.0
853.6
425.0
1278.6
View list