Chess South Africa
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Chess South Africa
Witbooi, S (Sergio)
Dob:
2010/08/06 (U16)
Gender:
Male
Chess SA id:
1100151059
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2024/04/20 (33 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
1210.7
Curent Weighted rating
1214.2
Curent Weighted performance
1161.1
Current official/published rating (highest between Raw, WR and WP)
1214.2
Current floor (min rating allowed)
739.7
Current highest rating achieved
1239.7
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)
±163.3
Current Raw change used (final)
0.0
Projected new Raw rating
1210.7
Projected new Weighed rating
1214.1
Projected new Weighted performance
1161.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1214.1
Projected effective change (new Official - current Official)
-0.0
Projected new highest rating
1239.7
Projected new floor
739.7
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
1202.2
Curent Weighted rating
1214.8
Curent Weighted performance
1147.6
Current official/published rating (highest between Raw, WR and WP)
1214.8
Current floor (min rating allowed)
745.0
Current highest rating achieved
1245.0
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)
±165.3
Current Raw change used (final)
0.0
Projected new Raw rating
1202.2
Projected new Weighed rating
1214.0
Projected new Weighted performance
1147.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1214.0
Projected effective change (new Official - current Official)
-0.8
Projected new highest rating
1245.0
Projected new floor
745.0
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)
700.0
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
700.0
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)
700.0
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
700.0
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
5
Eden Chess Trials 2 2024 (U16)
2024/04/13
2024/04/20
Eden (WEG)
Standard
60
0.83
10
9
4.5
1184.1
1165.1
Analysis
4
Western Cape HS Individuals Championship 2024 (U15 Boys)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
1.0
1239.7
1245.0
Analysis
3
Eden School Chess Trials 1 2024 (U15 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
2.0
1239.7
1245.0
Analysis
2
OUDUSSA Trials 2 2024 (U15 Boys)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
5
2.5
1217.9
1221.6
Analysis
1
OUDUSSA Trials 1 2024 (U15 Boys)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
5
3.5
1217.9
1221.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
6
Eden Chess Trials 2 2024 (U16)
2024/04/13
2024/04/20
Eden (WEG)
Standard
60
0.83
10
9
4.5
1184.1
1165.1
Analysis
5
Western Cape HS Individuals Championship 2024 (U15 Boys)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
1.0
1239.7
1245.0
Analysis
4
Eden School Chess Trials 1 2024 (U15 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
2.0
1239.7
1245.0
Analysis
3
OUDUSSA Trials 2 2024 (U15 Boys)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
5
2.5
1217.9
1221.6
Analysis
2
OUDUSSA Trials 1 2024 (U15 Boys)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
5
3.5
1217.9
1221.6
Analysis
1
Oudussa Proewe 1 2023 (U13 Boys)
2023/02/11
2023/02/11
Eden District (WEG)
Standard
60
0.83
5
3
2.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
30
11
5
14
13.5
45.0
-42.5
1254.3
1211.8
White
16
7
3
6
8.5
53.1
26.6
1272.8
1299.4
Black
14
4
2
8
5.0
35.7
-121.4
1233.2
1111.8
Standard
All
30
11
5
14
13.5
45.0
-42.5
1254.3
1211.8
White
16
7
3
6
8.5
53.1
26.6
1272.8
1299.4
Black
14
4
2
8
5.0
35.7
-121.4
1233.2
1111.8
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
33
13
5
15
15.5
47.0
-25.8
1249.4
1223.6
White
17
8
3
6
9.5
55.9
50.0
1268.5
1318.5
Black
16
5
2
9
6.0
37.5
-106.3
1229.1
1122.8
Standard
All
33
13
5
15
15.5
47.0
-25.8
1249.4
1223.6
White
17
8
3
6
9.5
55.9
50.0
1268.5
1318.5
Black
16
5
2
9
6.0
37.5
-106.3
1229.1
1122.8
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1100193166
Sarels, I (Isaan)
2
1.5
1
1
0
75.0
1201.0
212.5
1413.5
View list
2
1090139251
Claasen, R (Rowen)
2
1.0
1
0
1
50.0
1217.9
0.0
1217.9
View list
3
1090132007
Thorne, J (Joey)
2
1.0
1
0
1
50.0
1217.9
0.0
1217.9
View list
4
1100193162
Jansen, R (Riaan Junior)
2
0.5
0
1
1
25.0
1217.9
-212.5
1005.4
View list
5
1110151037
Kamoetoe, D (Deago)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
1090131987
Botha, J (Josephnique)
1
1.0
1
0
0
100.0
1217.9
425.0
1642.9
View list
7
109094685
Beveridge, J (Jesse)
1
1.0
1
0
0
100.0
1239.7
425.0
1664.7
View list
8
1090108554
Saaiman, K (Kayle)
1
1.0
1
0
0
100.0
1239.7
425.0
1664.7
View list
9
1100150945
Rothman, W (Wade)
1
1.0
1
0
0
100.0
1239.7
425.0
1664.7
View list
10
1110151053
Samson, H (Heinrique-Pete)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
11
2100192922
Magomarele, R (Rachel)
1
1.0
1
0
0
100.0
1184.1
425.0
1609.1
View list
12
1100151041
Louw, M (Mentano)
1
1.0
1
0
0
100.0
1217.9
425.0
1642.9
View list
13
1090151079
Mienies, J (Jordan Lee)
1
1.0
1
0
0
100.0
1217.9
425.0
1642.9
View list
14
2090098402
Treurnicht, C (Chanique)
1
1.0
1
0
0
100.0
1184.1
425.0
1609.1
View list
15
2100119485
Makriga, G (Geonio)
1
0.5
0
1
0
50.0
1184.1
0.0
1184.1
View list
16
2100109666
Saayman, M (Miljenay)
1
0.5
0
1
0
50.0
1184.1
0.0
1184.1
View list
17
1100149929
Stander, J (Jack)
1
0.5
0
1
0
50.0
1184.1
0.0
1184.1
View list
18
1100151045
Minnies, J (Jo Neyden)
1
0.0
0
0
1
0.0
1184.1
-425.0
759.1
View list
19
1110151039
Koelman, L (Laytham)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
20
1090150963
Jansen, K (Kyle)
1
0.0
0
0
1
0.0
1239.7
-425.0
814.7
View list