Player Page

Koen, A (Andrea)
Dob: 2001/06/15 (Adult)
Gender: Female
Chess SA id: 201047585
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2019/07/20 (1765 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 rating1027.1
Curent Weighted rating1027.1
Curent Weighted performance395.0
Current official/published rating (highest between Raw, WR and WP)1027.1
Current floor (min rating allowed)671.4
Current highest rating achieved1171.4
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)±212.1
Current Raw change used (final)0.0
Projected new Raw rating1027.1
Projected new Weighed rating1027.1
Projected new Weighted performance395.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1027.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1171.4
Projected new floor671.4
Projected new K-facor40
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 rating1018.8
Curent Weighted rating1018.8
Curent Weighted performance391.9
Current official/published rating (highest between Raw, WR and WP)1018.8
Current floor (min rating allowed)665.6
Current highest rating achieved1165.6
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)±214.7
Current Raw change used (final)0.0
Projected new Raw rating1018.8
Projected new Weighed rating1018.8
Projected new Weighted performance391.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1018.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1165.6
Projected new floor665.6
Projected new K-facor40
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
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
16 Eden Top Schools 2019 (U18) 2019/07/20 2019/07/20 Eden District (WEG) Standard 60 0.83 5 4 3.0 959.7 934.0 Analysis
15 Eden Trials 3 2019 (U20 Open) 2019/05/11 2019/05/11 Eden District (WEG) Standard 60 0.83 5 4 0.0 1041.0 1035.6 Analysis
14 Western Cape Schools Individuals 2019 (U18 Girls) 2019/05/04 2019/05/05 Eden District (WEG) Standard 60 0.83 6 6 2.0 1041.0 1035.6 Analysis
13 Eden Trials 2 2019 (U20 Open) 2019/04/13 2019/04/13 Eden District (WEG) Standard 60 0.83 5 5 2.5 1011.7 1003.3 Analysis
12 Eden Trials 1 2019 (U20 Open) 2019/03/02 2019/03/02 Eden District (WEG) Standard 60 0.83 5 5 2.0 970.4 963.4 Analysis
11 George Trials 3 2019 (U20) 2019/02/23 2019/02/23 Eden District (WEG) Standard 60 0.83 5 5 2.5 895.7 880.0 Analysis
10 George Trials 2 2019 (U20) 2019/02/09 2019/02/09 Eden District (WEG) Standard 60 0.83 5 4 1.5 895.7 880.0 Analysis
9 George Trials 1 2019 (U20) 2019/01/26 2019/01/26 Eden District (WEG) Standard 60 0.83 5 4 2.0 877.4 856.0 Analysis
8 South African Junior Team Championships 2018 (U20B) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 0.0 956.6 928.4 Analysis
7 Eden Top Schools 2018 (U19 Mix) 2018/07/28 2018/07/28 Eden District (WEG) Standard 60 0.83 5 1 1.0 928.0 892.4 Analysis
6 EDENSC Closed 3 2018 (U18 Open) 2018/05/12 2018/05/12 Eden District (WEG) Standard 60 0.83 5 5 2.0 958.5 920.0 Analysis
5 EDENSC Closed 2 2018 (U18 (Open) 2018/04/14 2018/04/14 Eden District (WEG) Standard 60 0.83 5 5 1.0 1051.5 1027.6 Analysis
4 EDENSC Closed 1 2018 (U18) 2018/03/10 2018/03/10 Eden District (WEG) Standard 60 0.83 5 4 2.0 1063.8 1037.6 Analysis
3 George Trails 3 2018 (U18) 2018/02/24 2018/02/24 Eden District (WEG) Standard 60 0.83 5 4 1.0 1171.4 1165.6 Analysis
2 George Trails 2 2018 (U18) 2018/02/10 2018/02/10 Eden District (WEG) Standard 60 0.83 5 5 2.0 1171.4 1165.6 Analysis
1 George Trails 1 2018 (U18) 2018/01/27 2018/01/27 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 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 77 28 5 44 30.5 39.6 -88.3 1043.6 955.3
White 37 11 3 23 12.5 33.8 -137.8 1032.0 894.2
Black 40 17 2 21 18.0 45.0 -42.5 1054.3 1011.8
Standard All 77 28 5 44 30.5 39.6 -88.3 1043.6 955.3
White 37 11 3 23 12.5 33.8 -137.8 1032.0 894.2
Black 40 17 2 21 18.0 45.0 -42.5 1054.3 1011.8
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 2010096232 Campbell, A (Anje) 5 3.0 1 4 0 60.0 970.4 85.0 1055.4 View list
2 101012803 Holton , B (Brendon) 4 4.0 4 0 0 100.0 943.4 425.0 1368.4 View list
3 101064105 Rhode, J (Jadrique) 4 0.5 0 1 3 12.5 980.8 -318.8 662.1 View list
4 101064100 Gilbert, C (Cheslyn) 4 0.0 0 0 4 0.0 1022.3 -425.0 597.3 View list
5 1010096235 Swartz, L (Logan) 3 3.0 3 0 0 100.0 981.5 425.0 1406.5 View list
6 201065471 Carolus, L (Leigh) 2 2.0 2 0 0 100.0 1005.0 425.0 1430.0 View list
7 1030117283 Januarie, N (Nevan) 2 2.0 2 0 0 100.0 959.7 425.0 1384.7 View list
8 104086286 Murphy, S (Sidwell) 2 2.0 2 0 0 100.0 959.7 425.0 1384.7 View list
9 1030117282 Opperman, E (Eltiono) 2 2.0 2 0 0 100.0 959.7 425.0 1384.7 View list
10 102054190 Koopman, J (Jaydim) 2 1.0 1 0 1 50.0 1185.7 0.0 1185.7 View list
11 201036130 Stephanus, M (Melissa) 2 1.0 1 0 1 50.0 1026.3 0.0 1026.3 View list
12 102083810 Jantjies, J (Jowan) 2 0.0 0 0 2 0.0 959.7 -425.0 534.7 View list
13 102002022 Beukes, K (Kyle) 2 0.0 0 0 2 0.0 1185.7 -425.0 760.7 View list
14 101086594 Nyirenda, V (Vitumbiko) 2 0.0 0 0 2 0.0 999.8 -425.0 574.8 View list
15 101076897 Oktober, J (Jayson) 2 0.0 0 0 2 0.0 1033.6 -425.0 608.6 View list
16 101088360 Pietersen, M (Marlon) 2 0.0 0 0 2 0.0 1026.3 -425.0 601.3 View list
17 101054196 Turner, J (Jordan) 2 0.0 0 0 2 0.0 933.0 -425.0 508.0 View list
18 102054185 Cato, N (Nicholas) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
19 1020098491 Baatjies, J (Jayden) 1 1.0 1 0 0 100.0 1063.8 425.0 1488.8 View list
20 1020104317 Dyers, M (Matthew) 1 1.0 1 0 0 100.0 928.0 425.0 1353.0 View list