Chess South Africa
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Chess South Africa
Grobbelaar, A (Altus)
Dob:
2009/11/13 (U16)
Gender:
Male
Chess SA id:
1090107941
FIDE id:
Region:
Cape Winelands (WCW)
Citizen:
RSA
Title(s):
Last active:
2024/02/17 (84 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
1237.0
Curent Weighted rating
1272.8
Curent Weighted performance
1077.0
Current official/published rating (highest between Raw, WR and WP)
1272.8
Current floor (min rating allowed)
824.1
Current highest rating achieved
1324.1
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)
±157.3
Current Raw change used (final)
0.0
Projected new Raw rating
1237.0
Projected new Weighed rating
1269.9
Projected new Weighted performance
1077.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1269.9
Projected effective change (new Official - current Official)
-3.0
Projected new highest rating
1324.1
Projected new floor
824.1
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
1259.1
Curent Weighted rating
1263.9
Curent Weighted performance
1103.7
Current official/published rating (highest between Raw, WR and WP)
1263.9
Current floor (min rating allowed)
804.8
Current highest rating achieved
1304.8
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)
±152.4
Current Raw change used (final)
0.0
Projected new Raw rating
1259.1
Projected new Weighed rating
1264.2
Projected new Weighted performance
1103.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1264.2
Projected effective change (new Official - current Official)
+0.3
Projected new highest rating
1304.8
Projected new floor
804.8
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
1199.6
Curent Weighted rating
1234.6
Curent Weighted performance
1037.8
Current official/published rating (highest between Raw, WR and WP)
1234.6
Current floor (min rating allowed)
753.2
Current highest rating achieved
1253.2
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)
±165.9
Current Raw change used (final)
0.0
Projected new Raw rating
1199.6
Projected new Weighed rating
1231.3
Projected new Weighted performance
1037.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1231.3
Projected effective change (new Official - current Official)
-3.3
Projected new highest rating
1253.2
Projected new floor
753.2
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
1218.0
Curent Weighted rating
1218.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1218.0
Current floor (min rating allowed)
753.2
Current highest rating achieved
1218.0
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)
±161.6
Current Raw change used (final)
0.0
Projected new Raw rating
1218.0
Projected new Weighed rating
1218.0
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1218.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1218.0
Projected new floor
753.2
Projected new K-facor
36
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
Cape Winelands Schools - HS Trials 1 2024 (U15 Boys)
2024/02/17
2024/02/17
Cape Winelands (WCW)
Rapid
35
0.66
6
6
2.0
1273.8
1238.8
Analysis
1
Cape Winelands - Marie Delport Memorial 2024 (Open)
2024/01/27
2024/01/28
Cape Winelands (WCW)
Standard
70
0.87
6
5
2.0
1278.8
1267.7
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
27
Cape Winelands Schools - HS Trials 1 2024 (U15 Boys)
2024/02/17
2024/02/17
Cape Winelands (WCW)
Rapid
35
0.66
6
6
2.0
1273.8
1238.8
Analysis
26
Cape Winelands - Marie Delport Memorial 2024 (Open)
2024/01/27
2024/01/28
Cape Winelands (WCW)
Standard
70
0.87
6
5
2.0
1278.8
1267.7
Analysis
25
CW Top Schools 2023 (U15 Mix)
2023/08/26
2023/08/26
Cape Winelands (WCW)
Rapid
32
0.63
5
5
2.5
1289.7
1253.2
Analysis
24
Cape Winelands Schools Chess - Trials 1 2023 (U15 Boys)
2023/02/25
2023/02/25
Cape Winelands (WCW)
Standard
60
0.83
5
5
2.0
1324.1
1304.8
Analysis
23
CW Grass Roots Tournament 2022 (U13 Boys)
2022/11/19
2022/11/19
Cape Winelands (WCW)
Standard
60
0.83
5
5
5.0
1248.5
1191.6
Analysis
22
Stellenbosch Primary 2022 (U13)
2022/08/13
2022/08/13
Cape Winelands (WCW)
Rapid
30
0.60
6
6
4.0
1232.1
1230.5
Analysis
21
Rhenish Primary Tournament 2022 (U14)
2022/05/14
2022/05/14
Cape Winelands (WCW)
Rapid
30
0.60
5
5
3.0
1222.4
1215.4
Analysis
20
Ceres Open 2022 (B)
2022/04/23
2022/04/23
Cape Winelands (WCW)
Standard
65
0.85
6
6
3.0
1236.2
1198.0
Analysis
19
Cape Winelands Schools 2022 (U13 Boys)
2022/03/12
2022/03/12
Cape Winelands (WCW)
Standard
60
0.83
5
5
3.0
1231.7
1176.8
Analysis
18
Central Winelands Schools Individual Trials 2022 (U13 Boys)
2022/02/19
2022/02/19
Cape Winelands (WCW)
Rapid
35
0.66
5
5
3.0
1165.4
1191.8
Analysis
17
Cape Winelands Open 2022 (U14)
2022/02/12
2022/02/13
Cape Winelands (WCW)
Standard
70
0.87
6
6
4.0
1165.4
1112.8
Analysis
16
Drakenstein Pioneers Inaugural 2020 (C)
2020/03/14
2020/03/14
Cape Winelands (WCW)
Standard
60
0.83
5
5
2.0
1190.3
1138.0
Analysis
15
2020 Welgemoed Chess Challenge (U12)
2020/02/29
2020/02/29
Cape Town (WCT)
Rapid
30
0.60
5
5
3.0
1149.2
1153.2
Analysis
14
Paul Roos Blitz 2020
2020/02/22
2020/02/22
Cape Winelands (WCW)
Blitz
5
0.18
9
9
4.0
1149.2
1200.0
Analysis
13
Cape Winelands Schools Trials 1 2020 (U11 Boys)
2020/02/08
2020/02/08
Cape Winelands (WCW)
Rapid
30
0.60
6
6
3.0
1149.2
1153.2
Analysis
12
Back to School Rapid 2020 (Boys)
2020/02/01
2020/02/01
West Coast (WCU)
Rapid
20
0.47
5
5
2.0
1149.2
1153.2
Analysis
11
Stellenbosch Primary 2019 (U12)
2019/08/31
2019/08/31
Cape Winelands (WCW)
Rapid
30
0.60
7
7
4.0
1113.9
1149.6
Analysis
10
2019 Western Province League (E)
2019/07/27
2019/08/10
Cape Town (WCT)
Standard
60
0.83
9
3
2.0
1113.9
1105.6
Analysis
9
Cape Winelands Schools - Top Schools 2019 (U13 Mix)
2019/07/27
2019/07/27
Cape Winelands (WCW)
Rapid
30
0.60
5
5
4.0
1087.7
1108.0
Analysis
8
Drakenstein Dragons Rapid 2019 (U11)
2019/06/15
2019/06/15
Cape Winelands (WCW)
Rapid
15
0.39
7
7
3.5
1078.0
1077.6
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
11
4
0
7
4.0
36.4
-115.9
1262.1
1146.2
White
6
1
0
5
1.0
16.7
-283.3
1290.5
1007.1
Black
5
3
0
2
3.0
60.0
85.0
1228.1
1313.1
Standard
All
5
2
0
3
2.0
40.0
-85.0
1345.1
1260.1
White
3
1
0
2
1.0
33.3
-141.7
1369.7
1228.1
Black
2
1
0
1
1.0
50.0
0.0
1308.3
1308.3
Rapid
All
6
2
0
4
2.0
33.3
-141.7
1192.9
1051.3
White
3
0
0
3
0.0
0.0
-425.0
1211.2
786.2
Black
3
2
0
1
2.0
66.7
141.7
1174.7
1316.4
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
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
157
79
5
73
81.5
51.9
16.2
1175.6
1191.8
White
80
39
2
39
40.0
50.0
0.0
1172.4
1172.4
Black
77
40
3
34
41.5
53.9
33.1
1178.9
1212.0
Standard
All
51
27
1
23
27.5
53.9
33.3
1190.2
1223.6
White
26
14
0
12
14.0
53.8
32.7
1178.5
1211.2
Black
25
13
1
11
13.5
54.0
34.0
1202.5
1236.5
Rapid
All
97
48
4
45
50.0
51.5
13.1
1154.1
1167.2
White
50
23
2
25
24.0
48.0
-17.0
1156.1
1139.1
Black
47
25
2
20
26.0
55.3
45.2
1151.8
1197.0
Blitz
All
9
4
0
5
4.0
44.4
-47.2
1324.1
1276.8
White
4
2
0
2
2.0
50.0
0.0
1335.7
1335.7
Black
5
2
0
3
2.0
40.0
-85.0
1314.8
1229.8
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1090137694
Lombaard, R (Romelio)
3
2.0
2
0
1
66.7
1265.1
141.7
1406.7
View list
2
109088275
Zungula, C (Chulumanco)
3
0.0
0
0
3
0.0
1143.5
-425.0
718.5
View list
3
2070097094
Baartman, N (Nicole)
2
2.0
2
0
0
100.0
1087.7
425.0
1512.7
View list
4
206078295
Arries, TE (Tyra Elrihia)
2
2.0
2
0
0
100.0
1087.7
425.0
1512.7
View list
5
1100098105
Fransman, B (Benito)
2
2.0
2
0
0
100.0
1087.7
425.0
1512.7
View list
6
2090115876
George, H (Hayley-Ann)
2
2.0
2
0
0
100.0
1173.0
425.0
1598.0
View list
7
2060108658
Marais, C (Chante)
2
2.0
2
0
0
100.0
1087.7
425.0
1512.7
View list
8
1090098025
De Klerk, H (Hanro)
2
1.0
1
0
1
50.0
1255.3
0.0
1255.3
View list
9
1090137478
Koopman, J (Jayden)
2
1.0
1
0
1
50.0
1219.6
0.0
1219.6
View list
10
2090101915
Maart, M (Mia)
2
1.0
1
0
1
50.0
1227.3
0.0
1227.3
View list
11
108068738
Bester, C (Christoff)
2
0.0
0
0
2
0.0
1155.3
-425.0
730.3
View list
12
2060108662
Luyt, I (Imke)
2
0.0
0
0
2
0.0
1087.7
-425.0
662.7
View list
13
1100118430
Springveldt, L (Lael)
2
0.0
0
0
2
0.0
1198.6
-425.0
773.6
View list
14
1080103429
Winter, C (Cuthanzario)
2
0.0
0
0
2
0.0
1128.9
-425.0
703.9
View list
15
1060117674
Adams, M (Marlin)
1
1.0
1
0
0
100.0
1236.2
425.0
1661.2
View list
16
1090151233
Adams, H (Hyrin)
1
1.0
1
0
0
100.0
1324.1
425.0
1749.1
View list
17
1080161483
Adams, C (Cuan)
1
1.0
1
0
0
100.0
1289.7
425.0
1714.7
View list
18
1100141748
Arries, A (Aldavian)
1
1.0
1
0
0
100.0
1248.5
425.0
1673.5
View list
19
1050132442
Appollis, M (Martino)
1
1.0
1
0
0
100.0
1149.2
425.0
1574.2
View list
20
108082122
Carstens, J (Joshua)
1
1.0
1
0
0
100.0
1113.9
425.0
1538.9
View list