Player Page

Posthumus, E (Ethan)
Dob: 2009/05/28 (U16)
Gender: Male
Chess SA id: 1090097412
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2022/06/04 (730 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 rating1084.1
Curent Weighted rating1084.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1084.1
Current floor (min rating allowed)651.5
Current highest rating achieved1151.5
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)±195.6
Current Raw change used (final)0.0
Projected new Raw rating1084.1
Projected new Weighed rating1084.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1084.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1151.5
Projected new floor651.5
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 rating1066.0
Curent Weighted rating1066.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1066.0
Current floor (min rating allowed)641.6
Current highest rating achieved1141.6
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)±200.7
Current Raw change used (final)0.0
Projected new Raw rating1066.0
Projected new Weighed rating1066.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1066.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1141.6
Projected new floor641.6
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
4 Gaueng Schools D7 2022 (U13 Boys) 2022/06/04 2022/06/04 Sedibeng (GSV) Standard 60 0.83 5 0 0.0 1084.1 1066.0 Analysis
3 D7 Primary School League 2019 (U11) 2019/08/03 2019/08/03 Sedibeng (GSV) Standard 60 0.83 5 4 1.0 1125.9 1113.6 Analysis
2 D7 Primary School League 2023 (U9 Boys+Mixed) 2018/04/21 2018/04/21 Sedibeng (GSV) Standard 61 0.83 5 5 1.5 1151.5 1141.6 Analysis
1 D7 Individual 2018 (U9 Boys) 2018/02/24 2018/02/24 Sedibeng (GSV) Standard 61 0.83 5 5 2.0 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 14 4 1 9 4.5 32.1 -151.8 1068.2 916.5
White 8 0 0 8 0.0 0.0 -425.0 1043.7 618.7
Black 6 4 1 1 4.5 75.0 212.5 1101.0 1313.5
Standard All 14 4 1 9 4.5 32.1 -151.8 1068.2 916.5
White 8 0 0 8 0.0 0.0 -425.0 1043.7 618.7
Black 6 4 1 1 4.5 75.0 212.5 1101.0 1313.5
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 2100100421 Deetlefs, A (Anzelle) 1 1.0 1 0 0 100.0 1151.5 425.0 1576.5 View list
2 2080098060 Keyser, K (Katelyn) 1 1.0 1 0 0 100.0 1125.9 425.0 1550.9 View list
3 110087167 De Koker, C (Christiaan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 1090097408 Botha, D (De Wet) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 210091657 Bergh, I (Isabelle) 1 0.5 0 1 0 50.0 1151.5 0.0 1151.5 View list
6 1100097411 Toona, N (Ntsika) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
7 1090100407 Putter, K (Kaylee) 1 0.0 0 0 1 0.0 1151.5 -425.0 726.5 View list
8 110092847 Mbatha, S (Samkelo) 1 0.0 0 0 1 0.0 1151.5 -425.0 726.5 View list
9 2080097384 Maloka, B (Bekang) 1 0.0 0 0 1 0.0 1125.9 -425.0 700.9 View list
10 1080100355 Jacobs, A (Aden) 1 0.0 0 0 1 0.0 1125.9 -425.0 700.9 View list
11 109093066 De Rouwe, R (Rohan) 1 0.0 0 0 1 0.0 1125.9 -425.0 700.9 View list
12 110093068 De Rouwe, ED (Eckhard) 1 0.0 0 0 1 0.0 1151.5 -425.0 726.5 View list
13 111087168 Cronje, E (Emile) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
14 109076176 Coetzee, J (Jaco) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list