Player Page

Cosa, L (Lonwaba)
Dob: 2010/02/06 (U16)
Gender: Male
Chess SA id: 1100156864
FIDE id:
Region: West Coast (WCU)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (66 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 rating1210.2
Current Weighted rating1208.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1210.2
Current highest rating achieved1210.2
Current floor (min rating allowed)710.2
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)±163.4
Current Raw change used (final)0.0
Projected new Raw rating1210.2
Projected new Weighed rating1111.6
Projected new Weighted performance650.1
Projected new final Raw rating (if new WP > new Raw)1210.2
Projected new highest rating1210.2
Projected new floor710.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1210.2
Projected effective change (new Official - current Official)=0.0
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
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 rating1218.0
Current Weighted rating1212.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1218.0
Current highest rating achieved1218.0
Current floor (min rating allowed)718.0
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)±161.6
Current Raw change used (final)0.0
Projected new Raw rating1218.0
Projected new Weighed rating1115.8
Projected new Weighted performance684.3
Projected new final Raw rating (if new WP > new Raw)1218.0
Projected new highest rating1218.0
Projected new floor718.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1218.0
Projected effective change (new Official - current Official)=0.0
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
1 Lower West Top Schools 2024 (U15) 2024/05/11 2024/05/11 West Coast (WCU) Rapid 30 0.60 5 4 2.0 1209.3 1214.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
2 Lower West Top Schools 2024 (U15) 2024/05/11 2024/05/11 West Coast (WCU) Rapid 30 0.60 5 4 2.0 1209.3 1214.0 Analysis
1 St Helenabaai Open 2023 (Development) 2023/05/13 2023/05/13 West Coast (WCU) 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 4 2 0 2 2.0 50.0 0.0 1216.1 1216.1
White 2 1 0 1 1.0 50.0 0.0 1178.8 1178.8
Black 2 1 0 1 1.0 50.0 0.0 1253.3 1253.3
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 4 2 0 2 2.0 50.0 0.0 1216.1 1216.1
White 2 1 0 1 1.0 50.0 0.0 1178.8 1178.8
Black 2 1 0 1 1.0 50.0 0.0 1253.3 1253.3
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 9 5 0 4 5.0 55.6 47.2 1197.1 1244.3
White 4 2 0 2 2.0 50.0 0.0 1166.8 1166.8
Black 5 3 0 2 3.0 60.0 85.0 1221.3 1306.3
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 9 5 0 4 5.0 55.6 47.2 1197.1 1244.3
White 4 2 0 2 2.0 50.0 0.0 1166.8 1166.8
Black 5 3 0 2 3.0 60.0 85.0 1221.3 1306.3
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 1100192697 Oliver, J (Jeandre) 1 1.0 1 0 0 100.0 1209.3 425.0 1634.3 View list
2 1120156866 Matthyse, M (Michael) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
3 2120156869 Samuels, J (Jada) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 1090304289 Van Rooyen, C (Curtley) 1 1.0 1 0 0 100.0 1209.3 425.0 1634.3 View list
5 2100156873 Stevens, E (Elmodene) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 2100131696 Warner, A (Alicia) 1 0.0 0 0 1 0.0 1209.3 -425.0 784.3 View list
7 1100143096 September, G (G-Naro) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
8 1130156867 Peacock, C (Christian) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
9 1100157819 De Bruin, M (Matthew) 1 0.0 0 0 1 0.0 1209.3 -425.0 784.3 View list