Player Page

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
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 rating1210.7
Curent Weighted rating1214.2
Curent Weighted performance1161.1
Current official/published rating (highest between Raw, WR and WP)1214.2
Current floor (min rating allowed)739.7
Current highest rating achieved1239.7
Current K-factor36
Games played this month0
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 rating1210.7
Projected new Weighed rating1214.1
Projected new Weighted performance1161.1
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 rating1239.7
Projected new floor739.7
Projected new K-facor36
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 rating1202.2
Curent Weighted rating1214.8
Curent Weighted performance1147.6
Current official/published rating (highest between Raw, WR and WP)1214.8
Current floor (min rating allowed)745.0
Current highest rating achieved1245.0
Current K-factor36
Games played this month0
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 rating1202.2
Projected new Weighed rating1214.0
Projected new Weighted performance1147.6
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 rating1245.0
Projected new floor745.0
Projected new K-facor36
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
Current K-factor36
Games played this month0
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 rating1200.0
Projected new Weighed rating1200.0
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 rating1200.0
Projected new floor700.0
Projected new K-facor36
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
Current K-factor36
Games played this month0
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 rating1200.0
Projected new Weighed rating1200.0
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 rating1200.0
Projected new floor700.0
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
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
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
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
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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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