Chess South Africa
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Chess South Africa
Groenewald, S (Stefan)
Dob:
2010/01/03 (U16)
Gender:
Male
Chess SA id:
1100112365
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2024/02/17 (129 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
1205.3
Current Weighted rating
1214.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1214.2
Current highest rating achieved
1219.3
Current floor (min rating allowed)
719.3
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)
±164.6
Current Raw change used (final)
0.0
Projected new Raw rating
1205.3
Projected new Weighed rating
1117.0
Projected new Weighted performance
875.2
Projected new final Raw rating (if new WP > new Raw)
1205.3
Projected new highest rating
1219.3
Projected new floor
719.3
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1205.3
Projected effective change (new Official - current Official)
-8.9
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
1186.4
Current Weighted rating
1194.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1194.5
Current highest rating achieved
1200.4
Current floor (min rating allowed)
700.4
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)
±169.1
Current Raw change used (final)
0.0
Projected new Raw rating
1186.4
Projected new Weighed rating
1099.0
Projected new Weighted performance
724.2
Projected new final Raw rating (if new WP > new Raw)
1186.4
Projected new highest rating
1200.4
Projected new floor
700.4
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1186.4
Projected effective change (new Official - current Official)
-8.1
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
1174.0
Current Weighted rating
1174.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1174.0
Current highest rating achieved
1174.0
Current floor (min rating allowed)
674.0
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)
±172.1
Current Raw change used (final)
0.0
Projected new Raw rating
1174.0
Projected new Weighed rating
1080.1
Projected new Weighted performance
310.4
Projected new final Raw rating (if new WP > new Raw)
1174.0
Projected new highest rating
1174.0
Projected new floor
674.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1174.0
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
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.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
1
2024 Constantiapark Open (C)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1219.3
1200.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
2024 Constantiapark Open (C)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1219.3
1200.4
Analysis
3
2023 Tshwane South School District CLOSED Individual Championships (U13 Open)
2023/04/22
2023/04/22
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1213.3
1189.2
Analysis
2
D4 Individuals 2022 (U13 Open)
2022/04/23
2022/04/23
Tshwane (GTP)
Rapid
30
0.60
7
7
4.0
1192.7
1200.0
Analysis
1
2019 D4 Individual Finals (U9 Mixed)
2019/03/09
2019/03/09
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
5
1
1
3
1.5
30.0
-170.0
1303.3
1133.3
White
2
0
1
1
0.5
25.0
-212.5
1224.8
1012.3
Black
3
1
0
2
1.0
33.3
-141.7
1355.7
1214.0
Standard
All
5
1
1
3
1.5
30.0
-170.0
1303.3
1133.3
White
2
0
1
1
0.5
25.0
-212.5
1224.8
1012.3
Black
3
1
0
2
1.0
33.3
-141.7
1355.7
1214.0
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
22
11
1
10
11.5
52.3
19.3
1192.5
1211.8
White
11
6
1
4
6.5
59.1
77.3
1141.4
1218.6
Black
11
5
0
6
5.0
45.5
-38.6
1243.6
1205.0
Standard
All
15
7
1
7
7.5
50.0
0.0
1180.4
1180.4
White
7
3
1
3
3.5
50.0
0.0
1144.6
1144.6
Black
8
4
0
4
4.0
50.0
0.0
1211.7
1211.7
Rapid
All
7
4
0
3
4.0
57.1
60.7
1218.4
1279.1
White
4
3
0
1
3.0
75.0
212.5
1135.8
1348.3
Black
3
1
0
2
1.0
33.3
-141.7
1328.6
1187.0
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
1100096766
Du Preez, J (Julian)
2
1.0
1
0
1
50.0
1206.7
0.0
1206.7
View list
2
1140134237
Barkhuizen, SJ (Simon Jurgens)
1
1.0
1
0
0
100.0
1219.3
425.0
1644.3
View list
3
1100154171
De Meyer, M (Marius)
1
1.0
1
0
0
100.0
1213.3
425.0
1638.3
View list
4
1090139995
Coetzee, C (Cuan)
1
1.0
1
0
0
100.0
1192.7
425.0
1617.7
View list
5
1100098596
Redelinghuys, A (Ayden)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
1100131213
Naicker, H (Hoovasen)
1
1.0
1
0
0
100.0
1192.7
425.0
1617.7
View list
7
109078402
Matthee, WD (William)
1
1.0
1
0
0
100.0
1192.7
425.0
1617.7
View list
8
110095325
Lourens, J (Jurgen)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
9
1090140004
Van Staden, R (Rikus)
1
1.0
1
0
0
100.0
1192.7
425.0
1617.7
View list
10
1100119625
Richards, K (Kobus)
1
1.0
1
0
0
100.0
1213.3
425.0
1638.3
View list
11
1100139996
De Wet, L (Lambert Hugo)
1
1.0
1
0
0
100.0
1213.3
425.0
1638.3
View list
12
1090134032
De Roos, H (Hubert)
1
0.5
0
1
0
50.0
1219.3
0.0
1219.3
View list
13
1110098610
Vermeulen, G (George Francis)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
14
110092655
Sutherland, R (Reuben)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
15
109069454
Sathish, A (Abinavah)
1
0.0
0
0
1
0.0
1192.7
-425.0
767.7
View list
16
1100192158
Sadalla, J (Johnny)
1
0.0
0
0
1
0.0
1219.3
-425.0
794.3
View list
17
1090103920
Reyneke, L (Luke)
1
0.0
0
0
1
0.0
1192.7
-425.0
767.7
View list
18
1100105140
Jacobs, H (Hanno)
1
0.0
0
0
1
0.0
1213.3
-425.0
788.3
View list
19
1120109890
Grahan, T (Tylo)
1
0.0
0
0
1
0.0
1219.3
-425.0
794.3
View list
20
110088599
Bogaard, FK (Franco)
1
0.0
0
0
1
0.0
1192.7
-425.0
767.7
View list