Chess South Africa
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Chess South Africa
Van Rooyen, S (Sergio)
Dob:
2008/11/07 (U18)
Gender:
Male
Chess SA id:
1080099747
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2024/02/24 (78 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
1246.5
Curent Weighted rating
1218.3
Curent Weighted performance
1115.0
Current official/published rating (highest between Raw, WR and WP)
1246.5
Current floor (min rating allowed)
767.5
Current highest rating achieved
1267.5
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)
±155.2
Current Raw change used (final)
0.0
Projected new Raw rating
1246.5
Projected new Weighed rating
1223.1
Projected new Weighted performance
1115.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1246.5
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1267.5
Projected new floor
767.5
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
1208.8
Curent Weighted rating
1178.5
Curent Weighted performance
1034.3
Current official/published rating (highest between Raw, WR and WP)
1208.8
Current floor (min rating allowed)
708.8
Current highest rating achieved
1208.8
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)
±163.7
Current Raw change used (final)
0.0
Projected new Raw rating
1208.8
Projected new Weighed rating
1183.7
Projected new Weighted performance
1034.3
Projected new official/published rating (highest between new Raw, new WR and new WP)
1208.8
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1208.8
Projected new floor
708.8
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
1197.3
Curent Weighted rating
1188.6
Curent Weighted performance
1162.0
Current official/published rating (highest between Raw, WR and WP)
1197.3
Current floor (min rating allowed)
736.0
Current highest rating achieved
1236.0
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)
±166.5
Current Raw change used (final)
0.0
Projected new Raw rating
1197.3
Projected new Weighed rating
1189.2
Projected new Weighted performance
1162.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1197.3
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1236.0
Projected new floor
736.0
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
736.0
Current highest rating achieved
1200.0
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
1200.0
Projected new Weighted performance
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
Projected new highest rating
1200.0
Projected new floor
736.0
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
West Coast Schools Chess Prestige Championships 2024 (U18+U20 Boys)
2024/02/24
2024/02/24
West Coast (WCU)
Rapid
30
0.60
5
5
2.0
1267.5
1222.9
Analysis
1
Bo-Weskus Skole Prestige 2024 (O18 Seuns)
2024/02/10
2024/02/10
West Coast (WCU)
Rapid
30
0.60
5
5
2.5
1267.5
1222.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
18
West Coast Schools Chess Prestige Championships 2024 (U18+U20 Boys)
2024/02/24
2024/02/24
West Coast (WCU)
Rapid
30
0.60
5
5
2.0
1267.5
1222.9
Analysis
17
Bo-Weskus Skole Prestige 2024 (O18 Seuns)
2024/02/10
2024/02/10
West Coast (WCU)
Rapid
30
0.60
5
5
2.5
1267.5
1222.9
Analysis
16
Clanwilliam Chess Club Open 2023 (B)
2023/12/02
2023/12/02
West Coast (WCU)
Rapid
35
0.66
5
5
3.5
1242.3
1168.2
Analysis
15
Youth Day 2 2023 (Elite)
2023/06/24
2023/06/24
West Coast (WCU)
Rapid
30
0.60
5
5
1.5
1141.8
1139.8
Analysis
14
Upper West Coast Top Schools Championship 2023 (High School)
2023/06/10
2023/06/10
West Coast (WCU)
Rapid
30
0.60
5
5
3.0
1141.8
1139.8
Analysis
13
West Coast Open 2023 (Open)
2023/05/20
2023/06/03
West Coast (WCU)
Standard
90
0.94
5
5
4.0
1141.8
1137.6
Analysis
12
PRBCC Closed 2023 (A)
2023/04/15
2023/04/15
West Coast (WCU)
Rapid
35
0.66
6
6
2.0
1135.6
1172.2
Analysis
11
Western Cape HS Individuals 2023 (U15 Boys)
2023/04/01
2023/04/02
Cape Town (WCT)
Standard
60
0.83
6
6
2.0
1135.6
1100.0
Analysis
10
West Coast High School Championships 2023 (U15 Boys)
2023/02/18
2023/02/18
West Coast (WCU)
Standard
60
0.83
6
6
3.0
1112.1
1058.8
Analysis
9
Bo-Weskus Skole Prestige 2023 (O15 Seuns)
2023/02/11
2023/02/11
West Coast (WCU)
Rapid
30
0.60
5
5
2.0
1112.1
1207.5
Analysis
8
Pedro Booyse Top Schools 2022 (U15 Open)
2022/07/23
2022/07/23
West Coast (WCU)
Standard
60
0.83
6
4
1.0
1139.7
1079.2
Analysis
7
Bo-Weskus Top Skole 2022 (Hoerskool)
2022/06/11
2022/06/11
West Coast (WCU)
Rapid
30
0.60
5
4
2.0
1139.9
1224.8
Analysis
6
West Coast Primary Schools Prestige 2021 (U13 Boys)
2021/09/18
2021/09/18
West Coast (WCU)
Rapid
30
0.60
5
5
2.0
1139.9
1236.0
Analysis
5
Bo-Weskus Skole Skaak Prestige 2021 (O13 Seuns)
2021/05/08
2021/05/08
West Coast (WCU)
Rapid
30
0.60
5
5
3.0
1115.9
1221.6
Analysis
4
Bo-Weskus Skole Prestige 2020 (O13 Seuns)
2020/02/15
2020/02/15
West Coast (WCU)
Standard
60
0.83
6
1
0.0
1128.5
1092.4
Analysis
3
Weskus Skole Prestige Skaak Kampioenskappe 2019 (O11 Seuns)
2019/03/02
2019/04/06
West Coast (WCU)
Standard
60
0.83
6
5
1.0
1170.7
1141.6
Analysis
2
Bo-Weskus Skole Skaak Prestige 2019 (O11 Seuns)
2019/02/16
2019/02/16
West Coast (WCU)
Rapid
30
0.60
7
7
4.0
1151.5
1200.0
Analysis
1
West Coast Schools Prestige Individual Championship 2018 (U11 Boys)
2018/03/10
2018/03/24
West Coast (WCU)
Standard
60
0.83
6
5
1.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
10
4
1
5
4.5
45.0
-42.5
1234.6
1192.1
White
6
2
0
4
2.0
33.3
-141.7
1269.0
1127.4
Black
4
2
1
1
2.5
62.5
106.3
1182.9
1289.1
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
10
4
1
5
4.5
45.0
-42.5
1234.6
1192.1
White
6
2
0
4
2.0
33.3
-141.7
1269.0
1127.4
Black
4
2
1
1
2.5
62.5
106.3
1182.9
1289.1
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
89
38
3
48
39.5
44.4
-47.8
1223.6
1175.8
White
45
16
1
28
16.5
36.7
-113.3
1231.8
1118.4
Black
44
22
2
20
23.0
52.3
19.3
1215.2
1234.6
Standard
All
32
12
0
20
12.0
37.5
-106.3
1246.1
1139.8
White
15
4
0
11
4.0
26.7
-198.3
1241.2
1042.9
Black
17
8
0
9
8.0
47.1
-25.0
1250.3
1225.3
Rapid
All
57
26
3
28
27.5
48.2
-14.9
1211.0
1196.1
White
30
12
1
17
12.5
41.7
-70.8
1227.0
1156.2
Black
27
14
2
11
15.0
55.6
47.2
1193.1
1240.4
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
106068748
Cloete, H (Howard)
3
1.0
1
0
2
33.3
1183.1
-141.7
1041.4
View list
2
1060110566
Cloete, C (Caleb)
3
1.0
1
0
2
33.3
1130.5
-141.7
988.8
View list
3
1070110603
Bell, N (Neyo)
3
1.0
1
0
2
33.3
1259.1
-141.7
1117.4
View list
4
104093501
September, C (Carltin)
3
1.0
1
0
2
33.3
1139.7
-141.7
998.1
View list
5
1090110397
Makatees, H (Haywill)
2
2.0
2
0
0
100.0
1161.1
425.0
1586.1
View list
6
106090527
Ruiters, A (Arnold-James)
2
2.0
2
0
0
100.0
1254.9
425.0
1679.9
View list
7
1090110403
Horn, M (Marshall)
2
1.0
1
0
1
50.0
1155.3
0.0
1155.3
View list
8
1080131878
Meyer, J (Junior)
2
1.0
1
0
1
50.0
1127.9
0.0
1127.9
View list
9
1110131966
Tieties, B (Beauton)
2
0.5
0
1
1
25.0
1138.7
-212.5
926.2
View list
10
1080110426
Berend, L (Luciano)
2
0.0
0
0
2
0.0
1161.1
-425.0
736.1
View list
11
1870149742
Bouwer, D (Dawid)
2
0.0
0
0
2
0.0
1138.7
-425.0
713.7
View list
12
109093484
Duiker, P (Phillip)
2
0.0
0
0
2
0.0
1123.8
-425.0
698.8
View list
13
109093559
Kameel, L (Lindon)
2
0.0
0
0
2
0.0
1143.5
-425.0
718.5
View list
14
207078017
Kilroe-Smith, I (Isabel)
2
0.0
0
0
2
0.0
1139.7
-425.0
714.7
View list
15
108087010
Viljoen, W (Wynand)
2
0.0
0
0
2
0.0
1189.8
-425.0
764.8
View list
16
1090110430
Djeudje, K (Keanen)
1
1.0
1
0
0
100.0
1115.9
425.0
1540.9
View list
17
2090099753
De Bruin, E (Elrise)
1
1.0
1
0
0
100.0
1141.8
425.0
1566.8
View list
18
1060130313
Davids, C (Cleverton)
1
1.0
1
0
0
100.0
1112.1
425.0
1537.1
View list
19
1080110427
Boks, M (Marquin)
1
1.0
1
0
0
100.0
1135.6
425.0
1560.6
View list
20
108065036
Eaton, M (Morgan)
1
1.0
1
0
0
100.0
1135.6
425.0
1560.6
View list