Player Page

Koen, I (Ian)
Dob: 2007/07/12 (U18)
Gender: Male
Chess SA id: 107076733
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2019/05/19 (1865 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 rating1098.1
Current Weighted rating1098.1
Current Weighted performance371.3
Current official/published rating (highest between Raw, WR and WP)1098.1
Current highest rating achieved1161.5
Current floor (min rating allowed)661.5
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)±191.7
Current Raw change used (final)0.0
Projected new Raw rating1098.1
Projected new Weighed rating1010.3
Projected new Weighted performance371.3
Projected new final Raw rating (if new WP > new Raw)1098.1
Projected new highest rating1161.5
Projected new floor661.5
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1098.1
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 rating1089.0
Current Weighted rating1089.0
Current Weighted performance371.3
Current official/published rating (highest between Raw, WR and WP)1089.0
Current highest rating achieved1178.2
Current floor (min rating allowed)678.2
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)±194.2
Current Raw change used (final)0.0
Projected new Raw rating1089.0
Projected new Weighed rating1001.9
Projected new Weighted performance371.3
Projected new final Raw rating (if new WP > new Raw)1089.0
Projected new highest rating1178.2
Projected new floor678.2
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1089.0
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 rating800.7
Current Weighted rating779.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)800.7
Current highest rating achieved800.7
Current floor (min rating allowed)500.0
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)±292.9
Current Raw change used (final)0.0
Projected new Raw rating800.7
Projected new Weighed rating717.4
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating800.7
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)800.7
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 rating763.0
Current Weighted rating763.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)763.0
Current highest rating achieved763.0
Current floor (min rating allowed)500.0
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)±309.0
Current Raw change used (final)0.0
Projected new Raw rating763.0
Projected new Weighed rating702.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating763.0
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)763.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
8 Western Cape Schools Individuals 2019 (U13 Boys) 2019/05/18 2019/05/19 Eden District (WEG) Standard 60 0.83 6 6 1.0 1161.5 1178.2 Analysis
7 Trial 2 Teddy/Toy Tournament 2019 (U12) 2019/04/06 2019/04/06 Overberg (WOS) Standard 60 0.83 5 5 3.0 1132.3 1148.2 Analysis
6 Overberg School Chess Close Champs 2019 (U13 Boys) 2019/03/08 2019/03/09 Overberg (WOS) Standard 60 0.83 6 6 4.0 1084.8 1094.6 Analysis
5 Caledon Casino 2 2018 (U12) 2018/10/20 2018/10/20 Overberg (WOS) Standard 60 0.83 5 5 2.5 1054.5 1101.8 Analysis
4 Western Cape Schools Individuals 2018 (U11 Boys) 2018/05/19 2018/05/20 Overberg (WOS) Standard 60 0.83 6 6 2.5 816.1 827.0 Analysis
3 Overberg 3rd Trial 2018 (U12) 2018/05/05 2018/05/05 Overberg (WOS) Standard 60 0.83 5 5 4.0 816.1 827.0 Analysis
2 Overberg 2nd Trial 2018 (U12) 2018/05/05 2018/05/05 Overberg (WOS) Standard 60 0.83 5 5 4.0 816.1 827.0 Analysis
1 Overberg Schools Closed 2018 (U11 Boys) 2018/03/23 2018/03/23 Overberg (WOS) Standard 60 0.83 6 6 4.0 763.0 763.0 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 44 24 2 18 25.0 56.8 58.0 1081.9 1139.9
White 24 14 1 9 14.5 60.4 88.5 1114.5 1203.0
Black 20 10 1 9 10.5 52.5 21.3 1042.8 1064.1
Standard All 44 24 2 18 25.0 56.8 58.0 1081.9 1139.9
White 24 14 1 9 14.5 60.4 88.5 1114.5 1203.0
Black 20 10 1 9 10.5 52.5 21.3 1042.8 1064.1
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 108084101 De Wet, R (Rossouw) 3 2.5 2 1 0 83.3 877.9 283.3 1161.2 View list
2 2080099834 Du Plessis, Y (Yara) 2 2.0 2 0 0 100.0 974.2 425.0 1399.2 View list
3 208084107 Beveridge, TG (Talitha) 2 1.0 1 0 1 50.0 935.3 0.0 935.3 View list
4 106088984 Jonas, SG (Sue-Win) 2 0.0 0 0 2 0.0 950.5 -425.0 525.5 View list
5 208068746 Snyders, M (Meya) 2 0.0 0 0 2 0.0 935.3 -425.0 510.3 View list
6 207088935 Dees, J (Jody) 1 1.0 1 0 0 100.0 816.1 425.0 1241.1 View list
7 1090111522 Da Silva, M (Miguel) 1 1.0 1 0 0 100.0 1132.3 425.0 1557.3 View list
8 1080099825 Burger, B (Bartho) 1 1.0 1 0 0 100.0 763.0 425.0 1188.0 View list
9 208080808 Beukes, L (Lanique) 1 1.0 1 0 0 100.0 1054.5 425.0 1479.5 View list
10 1070110154 Bester, Q (Q-Whine) 1 1.0 1 0 0 100.0 1161.5 425.0 1586.5 View list
11 1080099820 Hofmeyr, J (Jonah) 1 1.0 1 0 0 100.0 763.0 425.0 1188.0 View list
12 106095776 Higham, E (Ethan) 1 1.0 1 0 0 100.0 1084.8 425.0 1509.8 View list
13 1070111318 Hewitt, P (Peter) 1 1.0 1 0 0 100.0 1084.8 425.0 1509.8 View list
14 208068740 Hans, J (Joy) 1 1.0 1 0 0 100.0 816.1 425.0 1241.1 View list
15 1070100613 Gabriels, J (Jawon) 1 1.0 1 0 0 100.0 816.1 425.0 1241.1 View list
16 107091560 Fourie, T (Tristan) 1 1.0 1 0 0 100.0 816.1 425.0 1241.1 View list
17 1000099748 Neo, B (Bell) 1 1.0 1 0 0 100.0 816.1 425.0 1241.1 View list
18 1070097771 Pieterse, S (Shaun) 1 1.0 1 0 0 100.0 1084.8 425.0 1509.8 View list
19 108091556 Snyman, CS (Carel) 1 1.0 1 0 0 100.0 816.1 425.0 1241.1 View list
20 1080110747 Snyman, S (Sebastian) 1 1.0 1 0 0 100.0 1132.3 425.0 1557.3 View list