Player Page

Koopman, J (Juan)
Dob: 2011/09/22 (U14)
Gender: Male
Chess SA id: 1110150938
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/05/05 (12 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 rating1219.2
Curent Weighted rating1183.6
Curent Weighted performance1199.5
Current official/published rating (highest between Raw, WR and WP)1219.2
Current floor (min rating allowed)719.2
Current highest rating achieved1219.2
Current K-factor36
Games played this month6
Score (S)2.0
Expected score (We)1.91
Difference (S-We)0.09
Current Raw change (no limits, including tournament time weight)2.7
Current min/max change allowed (with limits)±161.3
Current Raw change used (final)2.7
Projected new Raw rating1221.9
Projected new Weighed rating1186.3
Projected new Weighted performance1199.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1221.9
Projected effective change (new Official - current Official)+2.7
Projected new highest rating1221.9
Projected new floor721.9
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 rating1222.3
Curent Weighted rating1180.0
Curent Weighted performance1202.5
Current official/published rating (highest between Raw, WR and WP)1222.3
Current floor (min rating allowed)722.3
Current highest rating achieved1222.3
Current K-factor36
Games played this month6
Score (S)2.0
Expected score (We)1.96
Difference (S-We)0.04
Current Raw change (no limits, including tournament time weight)1.4
Current min/max change allowed (with limits)±160.6
Current Raw change used (final)1.4
Projected new Raw rating1223.7
Projected new Weighed rating1183.2
Projected new Weighted performance1202.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1223.7
Projected effective change (new Official - current Official)+1.4
Projected new highest rating1223.7
Projected new floor723.7
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 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
Tournament: Western Cape PS Individuals Championship 2024 (U13 Boys)
Start: 2024/05/04  End: 2024/05/05  Host: WCU  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 6
Games: 6  Score: 2.0
Main rating: 1219.2  Rating gain/loss: 2.7
Type rating: 1222.3  Rating gain/loss: 1.4
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
4 Western Cape PS Individuals Championship 2024 (U13 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 2.0 1219.2 1222.3 Analysis
3 Eden School Chess Trials 1 2024 (U13 Boys) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 3.5 1150.5 1142.4 Analysis
2 Kannaland Proewe 2 2024 (U13 Boys) 2024/02/24 2024/02/24 Eden District (WEG) Standard 60 0.83 5 4 2.0 1176.5 1171.6 Analysis
1 Kannaland Proewe 1 (U13 Boys) 2024/02/17 2024/02/17 Eden District (WEG) Standard 60 0.83 5 4 0.0 1176.5 1171.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
8 Western Cape PS Individuals Championship 2024 (U13 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 2.0 1219.2 1222.3 Analysis
7 Eden School Chess Trials 1 2024 (U13 Boys) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 3.5 1150.5 1142.4 Analysis
6 Kannaland Proewe 2 2024 (U13 Boys) 2024/02/24 2024/02/24 Eden District (WEG) Standard 60 0.83 5 4 2.0 1176.5 1171.6 Analysis
5 Kannaland Proewe 1 (U13 Boys) 2024/02/17 2024/02/17 Eden District (WEG) Standard 60 0.83 5 4 0.0 1176.5 1171.6 Analysis
4 Eden Top Schools 2023 (U13 Mix) 2023/08/19 2023/08/19 Eden District (WEG) Standard 60 0.83 5 5 3.0 1151.7 1141.0 Analysis
3 Eden Trials 2+3 2023 (U14) 2023/04/15 2023/05/13 Eden District (WEG) Standard 60 0.83 10 4 0.0 1198.3 1196.8 Analysis
2 Eden Trails 1 2023 (U13 Boys) 2023/03/11 2023/03/11 Eden District (WEG) Standard 60 0.83 5 5 2.0 1215.3 1218.4 Analysis
1 Kannaland Proewe 1 2023 (U11+U13 Boys) 2023/02/18 2023/02/18 Eden District (WEG) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 19 7 1 11 7.5 39.5 -89.5 1319.4 1229.9
White 10 2 1 7 2.5 25.0 -212.5 1317.9 1105.4
Black 9 5 0 4 5.0 55.6 47.2 1321.1 1368.3
Standard All 19 7 1 11 7.5 39.5 -89.5 1319.4 1229.9
White 10 2 1 7 2.5 25.0 -212.5 1317.9 1105.4
Black 9 5 0 4 5.0 55.6 47.2 1321.1 1368.3
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 15 1 22 15.5 40.8 -78.3 1273.0 1194.7
White 21 5 1 15 5.5 26.2 -202.4 1268.9 1066.5
Black 17 10 0 7 10.0 58.8 75.0 1278.0 1353.0
Standard All 38 15 1 22 15.5 40.8 -78.3 1273.0 1194.7
White 21 5 1 15 5.5 26.2 -202.4 1268.9 1066.5
Black 17 10 0 7 10.0 58.8 75.0 1278.0 1353.0
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 1110150947 Van Der Berg, J (Janelle) 3 3.0 3 0 0 100.0 1176.1 425.0 1601.1 View list
2 1120150944 Pretorius, I (Immanuel) 3 1.0 1 0 2 33.3 1184.3 -141.7 1042.7 View list
3 1110190089 Claassen, A (Aiden) 2 0.0 0 0 2 0.0 1176.5 -425.0 751.5 View list
4 1100149864 Cook, E (Ethan) 1 1.0 1 0 0 100.0 1215.3 425.0 1640.3 View list
5 1120152560 Branco, J (Joshua) 1 1.0 1 0 0 100.0 1151.7 425.0 1576.7 View list
6 1120156901 Fortuin, H (Haywill) 1 1.0 1 0 0 100.0 1219.2 425.0 1644.2 View list
7 1110161658 Julius, G (Gio) 1 1.0 1 0 0 100.0 1176.5 425.0 1601.5 View list
8 1110108531 Joseph, W (William) 1 1.0 1 0 0 100.0 1150.5 425.0 1575.5 View list
9 1100098398 Jonas, D (Damian) 1 1.0 1 0 0 100.0 1215.3 425.0 1640.3 View list
10 1110151034 Januarie, C (Cedwyn) 1 1.0 1 0 0 100.0 1150.5 425.0 1575.5 View list
11 1100150942 Pieterse, A (Alwin) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
12 1120145242 Prinsloo, J (Jaco) 1 1.0 1 0 0 100.0 1219.2 425.0 1644.2 View list
13 1110193151 Stuurman, D (Dante) 1 1.0 1 0 0 100.0 1150.5 425.0 1575.5 View list
14 1100148852 Vrolik, J (Jean-Paul) 1 1.0 1 0 0 100.0 1151.7 425.0 1576.7 View list
15 1120161647 Matanase, A (Akohlulwa) 1 0.5 0 1 0 50.0 1150.5 0.0 1150.5 View list
16 1100131365 Michaels, J (Joshua) 1 0.0 0 0 1 0.0 1215.3 -425.0 790.3 View list
17 1110135813 Coleman, A (Anthony) 1 0.0 0 0 1 0.0 1219.2 -425.0 794.2 View list
18 1110158220 Majiet, C (Clayton) 1 0.0 0 0 1 0.0 1151.7 -425.0 726.7 View list
19 1120150940 Lot, A (Alexio) 1 0.0 0 0 1 0.0 1176.5 -425.0 751.5 View list
20 1110132074 Kwabe, A (Awonke) 1 0.0 0 0 1 0.0 1219.2 -425.0 794.2 View list