Player Page

Koetser, J (Joshua)
Dob: 2008/08/04 (U18)
Gender: Male
Chess SA id: 1080193698
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (8 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 rating1233.4
Curent Weighted rating1205.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1233.4
Current floor (min rating allowed)733.4
Current highest rating achieved1233.4
Current K-factor36
Games played this month6
Score (S)2.5
Expected score (We)1.91
Difference (S-We)0.59
Current Raw change (no limits, including tournament time weight)10.0
Current min/max change allowed (with limits)±158.1
Current Raw change used (final)10.0
Projected new Raw rating1243.4
Projected new Weighed rating1209.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1243.4
Projected effective change (new Official - current Official)+10.0
Projected new highest rating1243.4
Projected new floor743.4
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 rating1228.5
Curent Weighted rating1205.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1228.5
Current floor (min rating allowed)728.5
Current highest rating achieved1228.5
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)±159.2
Current Raw change used (final)0.0
Projected new Raw rating1228.5
Projected new Weighed rating1207.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1228.5
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1228.5
Projected new floor728.5
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 achieved0.0
Current K-factor40
Games played this month6
Score (S)2.5
Expected score (We)2.05
Difference (S-We)0.45
Current Raw change (no limits, including tournament time weight)18.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)18.0
Projected new Raw rating1218.0
Projected new Weighed rating1201.4
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1218.0
Projected effective change (new Official - current Official)+18.0
Projected new highest rating1218.0
Projected new floor718.0
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 achieved0.0
Current K-factor40
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 rating0.0
Projected new floor700.0
Projected new K-facor40
Tournaments
Tournament: Steinitz Chess Festival 2024 (Open Rapid)
Start: 2024/05/11  End: 2024/05/11  Host: WCT  Type: Rapid   Time: 20  Time weight: 0.47  Rounds: 6
Games: 6  Score: 2.5
Main rating: 1233.4  Rating gain/loss: 10.0
Type rating: 1200.0  Rating gain/loss: 18.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Steinitz Chess Festival 2024 (Open Rapid) 2024/05/11 2024/05/11 Cape Town (WCT) Rapid 20 0.47 6 6 2.5 1233.4 1200.0 Analysis
2 Cape Town Open Chess Championship 2024 (Beginner) 2024/03/16 2024/03/17 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1209.6 1208.0 Analysis
1 North District School Trials 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 4 2.0 1200.0 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 Steinitz Chess Festival 2024 (Open Rapid) 2024/05/11 2024/05/11 Cape Town (WCT) Rapid 20 0.47 6 6 2.5 1233.4 1200.0 Analysis
2 Cape Town Open Chess Championship 2024 (Beginner) 2024/03/16 2024/03/17 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1209.6 1208.0 Analysis
1 North District School Trials 2024 (U18 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 4 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 16 8 1 7 8.5 53.1 26.6 1272.4 1298.9
White 7 5 0 2 5.0 71.4 182.1 1245.4 1427.5
Black 9 3 1 5 3.5 38.9 -94.4 1293.4 1198.9
Standard All 10 6 0 4 6.0 60.0 85.0 1210.1 1295.1
White 5 4 0 1 4.0 80.0 255.0 1181.6 1436.6
Black 5 2 0 3 2.0 40.0 -85.0 1238.5 1153.5
Rapid All 6 2 1 3 2.5 41.7 -70.8 1376.2 1305.4
White 2 1 0 1 1.0 50.0 0.0 1404.7 1404.7
Black 4 1 1 2 1.5 37.5 -106.3 1362.0 1255.8
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 16 8 1 7 8.5 53.1 26.6 1272.4 1298.9
White 7 5 0 2 5.0 71.4 182.1 1245.4 1427.5
Black 9 3 1 5 3.5 38.9 -94.4 1293.4 1198.9
Standard All 10 6 0 4 6.0 60.0 85.0 1210.1 1295.1
White 5 4 0 1 4.0 80.0 255.0 1181.6 1436.6
Black 5 2 0 3 2.0 40.0 -85.0 1238.5 1153.5
Rapid All 6 2 1 3 2.5 41.7 -70.8 1376.2 1305.4
White 2 1 0 1 1.0 50.0 0.0 1404.7 1404.7
Black 4 1 1 2 1.5 37.5 -106.3 1362.0 1255.8
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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2090145674 Du Plessis, M (Madelein) 1 1.0 1 0 0 100.0 1209.6 425.0 1634.6 View list
2 107085509 Li, T (Traynor) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
3 2090141163 Roto, A (Ahluma) 1 1.0 1 0 0 100.0 1209.6 425.0 1634.6 View list
4 1100140763 Prins, S (Stefan) 1 1.0 1 0 0 100.0 1233.4 425.0 1658.4 View list
5 2070096496 Nelson, OS (Olenka Shai) 1 1.0 1 0 0 100.0 1209.6 425.0 1634.6 View list
6 1080190213 Miller, K (Kenwyn) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 208089522 Williams, N (Nicole) 1 1.0 1 0 0 100.0 1209.6 425.0 1634.6 View list
8 1150304137 Uys, I (Ivan) 1 1.0 1 0 0 100.0 1233.4 425.0 1658.4 View list
9 2130191696 Sun, H (Haojia) 1 0.5 0 1 0 50.0 1233.4 0.0 1233.4 View list
10 1070138709 Williams, R (Reindert) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
11 1090300796 Mackinna, C (Cashlin) 1 0.0 0 0 1 0.0 1209.6 -425.0 784.6 View list
12 1090109869 Priestley, L (Logan) 1 0.0 0 0 1 0.0 1233.4 -425.0 808.4 View list
13 107076747 Osborne, R (Ryan Eugene) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
14 1090157940 Dubbeld, B (Benjamin) 1 0.0 0 0 1 0.0 1233.4 -425.0 808.4 View list
15 103003300 Bown, D (Dean) 1 0.0 0 0 1 0.0 1233.4 -425.0 808.4 View list
16 1090150200 Adriaanse, J (Jordan) 1 0.0 0 0 1 0.0 1209.6 -425.0 784.6 View list