Chess South Africa
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Chess South Africa
Witbooi, S (Sergio)
Dob:
2011/01/01 (U14)
Gender:
Male
Chess SA id:
1110099718
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2019/09/01 (1709 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
1327.5
Curent Weighted rating
1327.5
Curent Weighted performance
536.7
Current official/published rating (highest between Raw, WR and WP)
1327.5
Current floor (min rating allowed)
827.5
Current highest rating achieved
1327.5
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)
±138.3
Current Raw change used (final)
0.0
Projected new Raw rating
1327.5
Projected new Weighed rating
1327.5
Projected new Weighted performance
536.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1327.5
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1327.5
Projected new floor
827.5
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
1328.0
Curent Weighted rating
1328.0
Curent Weighted performance
512.2
Current official/published rating (highest between Raw, WR and WP)
1328.0
Current floor (min rating allowed)
828.0
Current highest rating achieved
1328.0
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)
±138.2
Current Raw change used (final)
0.0
Projected new Raw rating
1328.0
Projected new Weighed rating
1328.0
Projected new Weighted performance
512.2
Projected new official/published rating (highest between new Raw, new WR and new WP)
1328.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1328.0
Projected new floor
828.0
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
1256.0
Curent Weighted rating
1256.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1256.0
Current floor (min rating allowed)
756.0
Current highest rating achieved
1256.0
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)
±153.1
Current Raw change used (final)
0.0
Projected new Raw rating
1256.0
Projected new Weighed rating
1256.0
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1256.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1256.0
Projected new floor
756.0
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)
756.0
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
756.0
Projected new K-facor
36
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
7
Western Cape Top Schools 2019 (U9 Mix)
2019/08/31
2019/09/01
Cape Winelands (WCW)
Standard
60
0.83
5
5
5.0
1253.7
1244.1
Analysis
6
Western Cape Schools Individuals 2019 (U9 Boys)
2019/05/18
2019/05/19
Eden District (WEG)
Standard
60
0.83
6
6
3.0
1247.4
1230.4
Analysis
5
Weskus Skole Prestige Skaak Kampioenskappe 2019 (O9 Seuns)
2019/03/02
2019/04/06
West Coast (WCU)
Standard
60
0.83
6
6
3.0
1263.8
1261.7
Analysis
4
Bo-Weskus Skole Skaak Prestige 2019 (O9 Seuns)
2019/02/16
2019/02/16
West Coast (WCU)
Rapid
30
0.60
7
4
4.0
1222.8
1170.4
Analysis
3
Back 2 School 2019 (U8)
2019/01/19
2019/01/19
West Coast (WCU)
Rapid
30
0.60
5
5
2.0
1250.4
1200.0
Analysis
2
Western Cape Top Schools 2018 (U7+U9 Mix)
2018/08/25
2018/08/26
Overberg (WOS)
Standard
60
0.83
5
5
4.0
1219.3
1223.2
Analysis
1
West Coast Schools Prestige Individual Championship 2018 (U7 Boys)
2018/03/10
2018/03/24
West Coast (WCU)
Standard
60
0.83
6
6
3.5
1200.0
1200.0
Analysis
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
37
24
1
12
24.5
66.2
137.8
1195.7
1333.5
White
18
13
0
5
13.0
72.2
188.9
1190.0
1378.9
Black
19
11
1
7
11.5
60.5
89.5
1201.1
1290.6
Standard
All
28
18
1
9
18.5
66.1
136.6
1207.9
1344.5
White
13
10
0
3
10.0
76.9
228.8
1208.0
1436.9
Black
15
8
1
6
8.5
56.7
56.7
1207.7
1264.4
Rapid
All
9
6
0
3
6.0
66.7
141.7
1157.9
1299.5
White
5
3
0
2
3.0
60.0
85.0
1143.1
1228.1
Black
4
3
0
1
3.0
75.0
212.5
1176.3
1388.8
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
110086098
Booysen, L (Lukas)
2
2.0
2
0
0
100.0
1233.3
425.0
1658.3
View list
2
1110110509
Strauss, J (Johan)
2
1.0
1
0
1
50.0
1243.3
0.0
1243.3
View list
3
2110099723
Cardinal, J (Jacelynn)
2
0.5
0
1
1
25.0
1225.2
-212.5
1012.7
View list
4
1110099722
Booysen, C (Chadlin)
2
0.0
0
0
2
0.0
1225.2
-425.0
800.2
View list
5
1110118927
Augustyn, J (Johan)
1
1.0
1
0
0
100.0
1253.7
425.0
1678.7
View list
6
1100108153
Arpin, L (Lukas)
1
1.0
1
0
0
100.0
1253.7
425.0
1678.7
View list
7
1100110514
Albertyn, J (Jowaiden)
1
1.0
1
0
0
100.0
1222.8
425.0
1647.8
View list
8
1100118468
De Bruin, L (Leo)
1
1.0
1
0
0
100.0
1253.7
425.0
1678.7
View list
9
1110110521
Cloete, K (Kian)
1
1.0
1
0
0
100.0
1222.8
425.0
1647.8
View list
10
1110099725
Cloete, K (Kayden)
1
1.0
1
0
0
100.0
1250.4
425.0
1675.4
View list
11
2110099724
Joseph, V (Vernitrune)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
12
1100116577
Hollenbaght, OJ (Owen James)
1
1.0
1
0
0
100.0
1222.8
425.0
1647.8
View list
13
1100108158
Godbeer, M (Michael)
1
1.0
1
0
0
100.0
1247.4
425.0
1672.4
View list
14
1110099716
Maarman, B (Blayden)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
15
1090104287
Liebenberg, B (Ben)
1
1.0
1
0
0
100.0
1219.3
425.0
1644.3
View list
16
2120099717
Lewaks, A (Andrea)
1
1.0
1
0
0
100.0
1250.4
425.0
1675.4
View list
17
1100103428
Fourie, O (Ockert)
1
1.0
1
0
0
100.0
1253.7
425.0
1678.7
View list
18
1090105978
Mazari, M (Mahdi)
1
1.0
1
0
0
100.0
1219.3
425.0
1644.3
View list
19
1100110492
November, J (Jovanni)
1
1.0
1
0
0
100.0
1263.8
425.0
1688.8
View list
20
1110110249
Oosthuizen, C (Conrad)
1
1.0
1
0
0
100.0
1263.8
425.0
1688.8
View list