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 (152 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 rating1224.4
Current Weighted rating1197.7
Current Weighted performance1170.4
Current official/published rating (highest between Raw, WR and WP)1224.4
Current highest rating achieved1224.4
Current floor (min rating allowed)724.4
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)±160.2
Current Raw change used (final)0.0
Projected new Raw rating1224.4
Projected new Weighed rating1102.3
Projected new Weighted performance1170.4
Projected new final Raw rating (if new WP > new Raw)1224.4
Projected new highest rating1224.4
Projected new floor724.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1224.4
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 rating1225.6
Current Weighted rating1195.7
Current Weighted performance1170.4
Current official/published rating (highest between Raw, WR and WP)1225.6
Current highest rating achieved1225.6
Current floor (min rating allowed)725.6
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)±159.9
Current Raw change used (final)0.0
Projected new Raw rating1225.6
Projected new Weighed rating1100.5
Projected new Weighted performance1170.4
Projected new final Raw rating (if new WP > new Raw)1225.6
Projected new highest rating1225.6
Projected new floor725.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1225.6
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 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
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
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 1120193059 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