Player Page

Koen, E (Ethan)
Dob: 2006/12/04 (U20)
Gender: Male
Chess SA id: 1060157589
FIDE id:
Region: Umgungunglovu (KUP)
Citizen: RSA
Title(s):
Last active: 2024/05/25 (34 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 rating1352.8
Current Weighted rating1249.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1352.8
Current highest rating achieved1352.8
Current floor (min rating allowed)852.8
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)±133.4
Current Raw change used (final)0.0
Projected new Raw rating1352.8
Projected new Weighed rating1151.3
Projected new Weighted performance1121.3
Projected new final Raw rating (if new WP > new Raw)1352.8
Projected new highest rating1352.8
Projected new floor852.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1352.8
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 rating1305.5
Current Weighted rating1208.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1305.5
Current highest rating achieved1305.5
Current floor (min rating allowed)805.5
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)±142.7
Current Raw change used (final)0.0
Projected new Raw rating1305.5
Projected new Weighed rating1112.1
Projected new Weighted performance517.4
Projected new final Raw rating (if new WP > new Raw)1305.5
Projected new highest rating1305.5
Projected new floor805.5
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1305.5
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 rating1292.5
Current Weighted rating1238.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1292.5
Current highest rating achieved1292.5
Current floor (min rating allowed)792.5
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)±145.3
Current Raw change used (final)0.0
Projected new Raw rating1292.5
Projected new Weighed rating1140.5
Projected new Weighted performance816.1
Projected new final Raw rating (if new WP > new Raw)1292.5
Projected new highest rating1292.5
Projected new floor792.5
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1292.5
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
2 Umgungundlovu Schools League 2024 (U18 Boys) 2024/05/17 2024/05/25 Umgungunglovu (KUP) Standard 60 0.83 7 7 6.5 1282.9 1200.0 Analysis
1 Umgungundlovu Open 2024 (A) 2024/04/06 2024/04/06 Umgungunglovu (KUP) Rapid 30 0.60 6 6 4.0 1250.3 1238.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 Umgungundlovu Schools League 2024 (U18 Boys) 2024/05/17 2024/05/25 Umgungunglovu (KUP) Standard 60 0.83 7 7 6.5 1282.9 1200.0 Analysis
2 Umgungundlovu Open 2024 (A) 2024/04/06 2024/04/06 Umgungunglovu (KUP) Rapid 30 0.60 6 6 4.0 1250.3 1238.5 Analysis
1 2023 KZN Winter Schools Selections (U18 Boys) 2023/06/24 2023/06/24 Ethekwini (KED) Rapid 30 0.60 7 7 4.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 13 10 1 2 10.5 80.8 261.5 1256.1 1517.6
White 6 4 1 1 4.5 75.0 212.5 1226.6 1439.1
Black 7 6 0 1 6.0 85.7 303.6 1281.3 1584.8
Standard All 7 6 1 0 6.5 92.9 364.3 1206.2 1570.5
White 4 3 1 0 3.5 87.5 318.8 1205.3 1524.0
Black 3 3 0 0 3.0 100.0 425.0 1207.4 1632.4
Rapid All 6 4 0 2 4.0 66.7 141.7 1314.2 1455.9
White 2 1 0 1 1.0 50.0 0.0 1269.3 1269.3
Black 4 3 0 1 3.0 75.0 212.5 1336.7 1549.2
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 14 2 4 15.0 75.0 212.5 1291.8 1504.3
White 9 5 2 2 6.0 66.7 141.7 1276.3 1417.9
Black 11 9 0 2 9.0 81.8 270.5 1304.5 1575.0
Standard All 7 6 1 0 6.5 92.9 364.3 1206.2 1570.5
White 4 3 1 0 3.5 87.5 318.8 1205.3 1524.0
Black 3 3 0 0 3.0 100.0 425.0 1207.4 1632.4
Rapid All 13 8 1 4 8.5 65.4 130.8 1337.9 1468.7
White 5 2 1 2 2.5 50.0 0.0 1333.0 1333.0
Black 8 6 0 2 6.0 75.0 212.5 1341.0 1553.5
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 1070099475 Gumede, A (Alwande) 3 1.5 1 1 1 50.0 1244.4 0.0 1244.4 View list
2 1950154229 Mkhulisi, M (Mbongeni) 1 1.0 1 0 0 100.0 1250.3 425.0 1675.3 View list
3 1060305591 Mkhize, S (Siyabonga) 1 1.0 1 0 0 100.0 1282.9 425.0 1707.9 View list
4 1050099472 Mkhize, S (Siyabonga) 1 1.0 1 0 0 100.0 1250.3 425.0 1675.3 View list
5 1070148103 Mkhize, S (Samkelo) 1 1.0 1 0 0 100.0 1282.9 425.0 1707.9 View list
6 1080157499 Mbhele, A (Anele) 1 1.0 1 0 0 100.0 1282.9 425.0 1707.9 View list
7 1070301842 Makhonza, P (Philasande) 1 1.0 1 0 0 100.0 1282.9 425.0 1707.9 View list
8 1070305589 Maipath, C (Caleb) 1 1.0 1 0 0 100.0 1282.9 425.0 1707.9 View list
9 1050154256 Singh, K (Kaylum) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 1060107368 Sibiya, ST (Simphiwe) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
11 2080157569 Shezi, S (Sbahle) 1 1.0 1 0 0 100.0 1250.3 425.0 1675.3 View list
12 1070305598 Rorisang, M (Motshoane) 1 1.0 1 0 0 100.0 1282.9 425.0 1707.9 View list
13 163006020 Danisa, CT (Cyril) 1 1.0 1 0 0 100.0 1250.3 425.0 1675.3 View list
14 107066678 Bhixi, N (Ntando) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
15 1050099462 Dlamini, A (Ayabonga) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
16 105059782 Moodley, J (Jamie) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
17 1950144574 Mlawuza, S (Sbongiseni) 1 0.0 0 0 1 0.0 1250.3 -425.0 825.3 View list
18 1060103664 Hlatshwayo, S (Sphelele) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list