Player Page

Foster, B (Bjorn)
Dob: 2015/02/11 (U10)
Gender: Male
Chess SA id: 1150150111
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/03/03 (115 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
Current Raw rating1153.2
Current Weighted rating1177.5
Current Weighted performance1079.1
Current official/published rating (highest between Raw, WR and WP)1177.5
Current highest rating achieved1226.4
Current floor (min rating allowed)726.4
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)±177.2
Current Raw change used (final)0.0
Projected new Raw rating1153.2
Projected new Weighed rating1082.6
Projected new Weighted performance1079.1
Projected new final Raw rating (if new WP > new Raw)1153.2
Projected new highest rating1226.4
Projected new floor726.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1153.2
Projected effective change (new Official - current Official)-24.3
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
Current Raw rating1146.4
Current Weighted rating1190.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1190.4
Current highest rating achieved1239.6
Current floor (min rating allowed)739.6
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)±179.0
Current Raw change used (final)0.0
Projected new Raw rating1146.4
Projected new Weighed rating1094.8
Projected new Weighted performance872.9
Projected new final Raw rating (if new WP > new Raw)1146.4
Projected new highest rating1239.6
Projected new floor739.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1146.4
Projected effective change (new Official - current Official)-44.0
s
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
Current Raw rating1159.5
Current Weighted rating1167.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1167.1
Current highest rating achieved1223.2
Current floor (min rating allowed)723.2
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)±175.7
Current Raw change used (final)0.0
Projected new Raw rating1159.5
Projected new Weighed rating1072.9
Projected new Weighted performance954.2
Projected new final Raw rating (if new WP > new Raw)1159.5
Projected new highest rating1223.2
Projected new floor723.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1159.5
Projected effective change (new Official - current Official)-7.6
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
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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 rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 0.5 1226.4 1239.6 Analysis
2 De Hoop Teams Play Offs 2023 (U9 Mixed) 2024/02/10 2024/02/10 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1170.5 1200.0 Analysis
1 CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1170.5 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
8 Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 0.5 1226.4 1239.6 Analysis
7 De Hoop Teams Play Offs 2023 (U9 Mixed) 2024/02/10 2024/02/10 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1170.5 1200.0 Analysis
6 CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1170.5 1200.0 Analysis
5 Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed) 2023/11/04 2023/11/04 Cape Town (WCT) Rapid 30 0.60 6 6 3.5 1151.5 1122.4 Analysis
4 De Hoop Chess Championship 2023 (U8) 2023/10/14 2023/10/14 Cape Town (WCT) Rapid 30 0.60 5 4 1.0 1169.2 1147.6 Analysis
3 CT Metro District East Top Schools Chess 2023 (U9 Mixed) 2023/07/29 2023/07/29 Cape Town (WCT) Rapid 30 0.60 5 2 0.0 1190.6 1182.2 Analysis
2 Rhenish Primary Tournament 2023 (U10) 2023/05/13 2023/05/13 Cape Winelands (WCW) Rapid 30 0.60 5 5 1.5 1214.4 1223.2 Analysis
1 De Hoop Teams Play Offs 2023 (U9 Mixed) 2023/02/11 2023/02/11 Cape Town (WCT) Rapid 30 0.60 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 16 6 1 9 6.5 40.6 -79.7 1241.0 1161.3
White 8 2 0 6 2.0 25.0 -212.5 1275.2 1062.7
Black 8 4 1 3 4.5 56.3 53.1 1206.8 1259.9
Standard All 16 6 1 9 6.5 40.6 -79.7 1241.0 1161.3
White 8 2 0 6 2.0 25.0 -212.5 1275.2 1062.7
Black 8 4 1 3 4.5 56.3 53.1 1206.8 1259.9
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 38 14 3 21 15.5 40.8 -78.3 1220.6 1142.3
White 19 5 1 13 5.5 28.9 -178.9 1238.0 1059.0
Black 19 9 2 8 10.0 52.6 22.4 1203.3 1225.6
Standard All 16 6 1 9 6.5 40.6 -79.7 1241.0 1161.3
White 8 2 0 6 2.0 25.0 -212.5 1275.2 1062.7
Black 8 4 1 3 4.5 56.3 53.1 1206.8 1259.9
Rapid All 22 8 2 12 9.0 40.9 -77.3 1205.8 1128.5
White 11 3 1 7 3.5 31.8 -154.5 1210.9 1056.3
Black 11 5 1 5 5.5 50.0 0.0 1200.7 1200.7
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 1150150107 Burnett, T (Tomas) 3 1.0 1 0 2 33.3 1179.9 -141.7 1038.2 View list
2 1150150112 Fourie, S (Steph) 3 0.0 0 0 3 0.0 1179.9 -425.0 754.9 View list
3 1160150117 Lin, J (Junming) 2 2.0 2 0 0 100.0 1161.0 425.0 1586.0 View list
4 1160158922 Koen, G (Gustav) 2 0.0 0 0 2 0.0 1180.5 -425.0 755.5 View list
5 1150140699 Marais, A (Alexander) 2 0.0 0 0 2 0.0 1161.0 -425.0 736.0 View list
6 1150193273 Krengo, O (Olwakhe) 1 1.0 1 0 0 100.0 1170.5 425.0 1595.5 View list
7 1150193466 Luzaruo, P (Prins) 1 1.0 1 0 0 100.0 1170.5 425.0 1595.5 View list
8 1160162752 Lourens, S (Simeon Juda) 1 1.0 1 0 0 100.0 1170.5 425.0 1595.5 View list
9 1150193462 Biesenbach, J (Johannes) 1 1.0 1 0 0 100.0 1170.5 425.0 1595.5 View list
10 2170193481 Armstrong, C (Charlotte) 1 1.0 1 0 0 100.0 1170.5 425.0 1595.5 View list
11 1140151156 Amoraal, S (Simeon) 1 1.0 1 0 0 100.0 1151.5 425.0 1576.5 View list
12 1140156877 Cloete, D (Dale) 1 1.0 1 0 0 100.0 1214.4 425.0 1639.4 View list
13 1140150119 Potgieter, E (Ean) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
14 1150150122 Schutte, M (Maks) 1 1.0 1 0 0 100.0 1169.2 425.0 1594.2 View list
15 1150191256 Snyman, D (Daniel) 1 1.0 1 0 0 100.0 1151.5 425.0 1576.5 View list
16 1150150124 Wantenaar, X (Xander) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
17 1140191245 Du Toit, N (Nayvin) 1 0.5 0 1 0 50.0 1151.5 0.0 1151.5 View list
18 1140156879 Kruger, H (Hanko) 1 0.5 0 1 0 50.0 1214.4 0.0 1214.4 View list
19 1150147907 Sonday, R (Rayyan) 1 0.5 0 1 0 50.0 1226.4 0.0 1226.4 View list
20 1140156880 Massyn, L (Lincoln) 1 0.0 0 0 1 0.0 1214.4 -425.0 789.4 View list