Player Page

Koen, C (Cj)
Dob: 2004/01/23 (Adult)
Gender: Male
Chess SA id: 1040098121
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2022/03/05 (844 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 rating1047.4
Current Weighted rating1047.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1047.4
Current highest rating achieved1132.3
Current floor (min rating allowed)632.3
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)±206.1
Current Raw change used (final)0.0
Projected new Raw rating1047.4
Projected new Weighed rating963.6
Projected new Weighted performance489.8
Projected new final Raw rating (if new WP > new Raw)1047.4
Projected new highest rating1132.3
Projected new floor632.3
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1047.4
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 rating1094.0
Current Weighted rating1094.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1094.0
Current highest rating achieved1094.0
Current floor (min rating allowed)594.0
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)±192.8
Current Raw change used (final)0.0
Projected new Raw rating1094.0
Projected new Weighed rating1006.5
Projected new Weighted performance180.2
Projected new final Raw rating (if new WP > new Raw)1094.0
Projected new highest rating1094.0
Projected new floor594.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1094.0
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 rating1081.6
Current Weighted rating1081.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1081.6
Current highest rating achieved1085.6
Current floor (min rating allowed)585.6
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)±196.3
Current Raw change used (final)0.0
Projected new Raw rating1081.6
Projected new Weighed rating995.1
Projected new Weighted performance419.5
Projected new final Raw rating (if new WP > new Raw)1081.6
Projected new highest rating1085.6
Projected new floor585.6
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1081.6
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.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Cape Winelands Schools 2022 (U18 Boys) 2022/03/05 2022/03/05 Cape Winelands (WCW) Standard 60 0.83 5 5 0.0 1119.1 1200.0 Analysis
3 Lanfeberg Schools Chess Trials 2022 (U18) 2022/02/26 2022/02/26 Cape Winelands (WCW) Rapid 30 0.60 5 5 2.0 1118.6 1075.2 Analysis
2 Cape Winelands Schools Trials 1 2020 (U18 Boys) 2020/02/15 2020/02/15 Cape Winelands (WCW) Rapid 30 0.60 6 6 2.0 1132.3 1085.6 Analysis
1 Strategema Club 2018 (U16) 2018/03/10 2018/03/10 Cape Winelands (WCW) Rapid 30 0.60 5 4 0.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
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 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 20 4 0 16 4.0 20.0 -255.0 1161.4 906.4
White 11 1 0 10 1.0 9.1 -347.7 1185.3 837.6
Black 9 3 0 6 3.0 33.3 -141.7 1132.3 990.6
Standard All 5 0 0 5 0.0 0.0 -425.0 1185.3 760.3
White 3 0 0 3 0.0 0.0 -425.0 1197.1 772.1
Black 2 0 0 2 0.0 0.0 -425.0 1167.8 742.8
Rapid All 15 4 0 11 4.0 26.7 -198.3 1153.5 955.1
White 8 1 0 7 1.0 12.5 -318.8 1180.9 862.2
Black 7 3 0 4 3.0 42.9 -60.7 1122.1 1061.4
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 1050119379 De Wet, C (Christiaan) 2 1.0 1 0 1 50.0 1118.8 0.0 1118.8 View list
2 1030132403 Adolf, C (Clifford) 1 1.0 1 0 0 100.0 1132.3 425.0 1557.3 View list
3 1040133467 George, C (Cornelius) 1 1.0 1 0 0 100.0 1118.6 425.0 1543.6 View list
4 1040132413 Janse Van Rensburg, F (Frikkie) 1 1.0 1 0 0 100.0 1132.3 425.0 1557.3 View list
5 203060340 Giani, M (Mari) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
6 1040101966 Van Zyl, C (Christie) 1 0.0 0 0 1 0.0 1119.1 -425.0 694.1 View list
7 1040132421 Swartz, D (Divido) 1 0.0 0 0 1 0.0 1132.3 -425.0 707.3 View list
8 1030132419 Pretorius, M (Marlin) 1 0.0 0 0 1 0.0 1132.3 -425.0 707.3 View list
9 1040098123 Philander, G (Gemon) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
10 1020132417 Nel, K (Kyle) 1 0.0 0 0 1 0.0 1132.3 -425.0 707.3 View list
11 1050137725 Kuhn, J (John- Peter) 1 0.0 0 0 1 0.0 1118.6 -425.0 693.6 View list
12 1050132379 Kroutz, M (Monray) 1 0.0 0 0 1 0.0 1119.1 -425.0 694.1 View list
13 1050137723 Karelse, D (Diego) 1 0.0 0 0 1 0.0 1118.6 -425.0 693.6 View list
14 103068718 Francke, G (Gabriel) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
15 1040097114 Fielies, A (Antonio) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
16 103049664 Esterhuizen, PN (Peter) 1 0.0 0 0 1 0.0 1132.3 -425.0 707.3 View list
17 105052368 Coetsee, JE (Johan) 1 0.0 0 0 1 0.0 1118.6 -425.0 693.6 View list
18 106087911 Benvenuto, O (Oscar) 1 0.0 0 0 1 0.0 1119.1 -425.0 694.1 View list
19 1060117674 Adams, M (Marlin) 1 0.0 0 0 1 0.0 1119.1 -425.0 694.1 View list