Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Sergio Witbooi

1100151059
Eden (WEG)
Personal
Main rating
Rating 1402.8
K-factor 32
Floor 902.8
Highest 1402.8 (2026-02-28)
Min/Max +/- allowed 124
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1328.4
Final +/- 0
New Rating
()
Rating 1402.8
K-factor 32
Floor 902.8
Highest 1402.8 (2026-02-28)
Min/Max +/- allowed 124.2
Standard rating
Rating 1432.1
K-factor 32
Floor 932.1
Highest 1432.1 (2026-02-28)
Min/Max +/- allowed 119.1
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1373.5
Final +/- 0
New Rating
()
Rating 1432.1
K-factor 32
Floor 932.1
Highest 1432.1 (2026-02-28)
Min/Max +/- allowed 119.1
Rapid rating
Rating 1209
K-factor 36
Floor 709
Highest 1209 (2025-04-01)
Min/Max +/- allowed 163.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1209
K-factor 36
Floor 709
Highest 1209 (2025-04-01)
Min/Max +/- allowed 163.7
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Oudussa Trials 1 2026 (U17) Standard 2026-02-14 2026-02-14 Eden (WEG) 5 1382.8 5 4 1499.6 0 Details
2 Eden Chess Trials 2 2025 (U16) Standard 2025-03-15 2025-04-12 Eden (WEG) 10 1356.5 10 5.5 1431.5 0 Details
3 Oudtshoorn Rapid 2025 (Open) Rapid 2025-03-28 2025-03-28 Eden (WEG) 6 1266.1 6 3 1285 0 Details
4 Eden Schools Chess Trials 1 2025 (U15 Boys) Standard 2025-03-08 2025-03-08 Eden (WEG) 5 1266.1 5 3 1433.3 0 Details
5 Oudussa Trials 2025 (U15) Standard 2025-03-01 2025-03-01 Eden (WEG) 5 1266.1 5 4 1511.2 0 Details
6 Oudussa Trials 2 2025 (U5 Boys+Girls) Standard 2025-02-01 2025-02-01 Eden (WEG) 5 1212.6 5 4 1510.2 0 Details
7 Eden Chess Trials 2 2024 (U16) Standard 2024-04-13 2024-04-20 Eden (WEG) 10 1184.1 9 4.5 1272.7 0 Details
8 Western Cape HS Individuals Championship 2024 (U15 Boys) Standard 2024-03-21 2024-03-22 Overberg (WOS) 6 1239.7 6 1 1050.6 0 Details
9 Eden School Chess Trials 1 2024 (U15 Boys) Standard 2024-03-09 2024-03-09 Eden (WEG) 5 1239.7 5 2 1159.9 0 Details
10 OUDUSSA Trials 2 2024 (U15 Boys) Standard 2024-02-17 2024-02-17 Eden (WEG) 5 1217.9 5 2.5 1191.9 0 Details
11 OUDUSSA Trials 1 2024 (U15 Boys) Standard 2024-02-03 2024-02-03 Eden (WEG) 5 1217.9 5 3.5 1367.5 0 Details
12 Oudussa Proewe 1 2023 (U13 Boys) Standard 2023-02-11 2023-02-11 Eden (WEG) 5 1200 3 2 1341.7 0 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 5
Wins 3
Draws 2
Losses 0
White 3
Black 2
White wins 2
Black wins 1
Score 4
Percent 80
Dp 255
AOR 1244.6
Performance 1499.6
Game statistics (History)
Games 69
Wins 32
Draws 14
Losses 23
White 34
Black 35
White wins 18
Black wins 14
Score 39
Percent 56.5
Dp 55.4
AOR 1280.5
Performance 1335.9
Rankings (Main)
National
Overall 3223
Gender 2741
Age group 477
Gender/Age 397
Provincial
Overall 973
Gender 802
Age group 145
Gender/Age 112
Regional
Overall 221
Gender 177
Age group 38
Gender/Age 29
Rankings (Standard)
National
Overall 2449
Gender 2095
Age group 341
Gender/Age 282
Provincial
Overall 682
Gender 561
Age group 94
Gender/Age 72
Regional
Overall 160
Gender 125
Age group 26
Gender/Age 20
Rankings (Rapid)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 5
Score 4
Percent 80
Aor 1244.6
Dp 255
Prat 1499.6
Performance (12 months)
Games 26
Score 15.5
Percent 59.6
Aor 1329.4
Dp 81.7
Prat 1411.1
Performance (History)
Games 69
Score 39
Percent 56.5
Aor 1280.5
Dp 55.4
Prat 1335.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Jansen, R (Riaan Junior) 4 2 2 OUDUSSA Trials 1 2024 (U15 Boys) Oudussa Trials 1 2026 (U17) Details
Overall 2 Stander, J (Jack) 3 2 1 Eden Chess Trials 2 2024 (U16) Oudussa Trials 2025 (U15) Details
Overall 3 Sarels, I (Isaan) 3 2 1 OUDUSSA Trials 1 2024 (U15 Boys) Eden Chess Trials 2 2025 (U16) Details
Overall 4 Julies, M (Miche) 2 0 2 Oudussa Trials 2 2025 (U5 Boys+Girls) Eden Chess Trials 2 2025 (U16) Details
Overall 5 Thorne, J (Joey) 2 0 2 OUDUSSA Trials 1 2024 (U15 Boys) OUDUSSA Trials 2 2024 (U15 Boys) Details
Standard 1 Jansen, R (Riaan Junior) 4 2 2 OUDUSSA Trials 1 2024 (U15 Boys) Oudussa Trials 1 2026 (U17) Details
Standard 2 Stander, J (Jack) 3 2 1 Eden Chess Trials 2 2024 (U16) Oudussa Trials 2025 (U15) Details
Standard 3 Sarels, I (Isaan) 3 2 1 OUDUSSA Trials 1 2024 (U15 Boys) Eden Chess Trials 2 2025 (U16) Details
Standard 4 Julies, M (Miche) 2 0 2 Oudussa Trials 2 2025 (U5 Boys+Girls) Eden Chess Trials 2 2025 (U16) Details
Standard 5 Claasen, R (Rowen) 2 2 0 OUDUSSA Trials 1 2024 (U15 Boys) OUDUSSA Trials 2 2024 (U15 Boys) Details