Player Page

Coetsee, JE (Johan)
Dob: 2005/03/08 (U20)
Gender: Male
Chess SA id: 105052368
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2023/04/02 (438 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 rating1370.5
Current Weighted rating1365.0
Current Weighted performance1175.5
Current official/published rating (highest between Raw, WR and WP)1370.5
Current highest rating achieved1385.1
Current floor (min rating allowed)885.1
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)±130.1
Current Raw change used (final)0.0
Projected new Raw rating1370.5
Projected new Weighed rating1256.8
Projected new Weighted performance1175.5
Projected new final Raw rating (if new WP > new Raw)1370.5
Projected new highest rating1385.1
Projected new floor885.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1370.5
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 rating1309.7
Current Weighted rating1300.6
Current Weighted performance1068.9
Current official/published rating (highest between Raw, WR and WP)1309.7
Current highest rating achieved1314.7
Current floor (min rating allowed)814.7
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)±141.8
Current Raw change used (final)0.0
Projected new Raw rating1309.7
Projected new Weighed rating1198.0
Projected new Weighted performance1068.9
Projected new final Raw rating (if new WP > new Raw)1309.7
Projected new highest rating1314.7
Projected new floor814.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1309.7
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 rating1293.4
Current Weighted rating1289.4
Current Weighted performance963.4
Current official/published rating (highest between Raw, WR and WP)1293.4
Current highest rating achieved1293.4
Current floor (min rating allowed)793.4
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)±145.2
Current Raw change used (final)0.0
Projected new Raw rating1293.4
Projected new Weighed rating1186.9
Projected new Weighted performance963.4
Projected new final Raw rating (if new WP > new Raw)1293.4
Projected new highest rating1293.4
Projected new floor793.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1293.4
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 rating624.6
Current Weighted rating624.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)624.6
Current highest rating achieved624.6
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)±376.4
Current Raw change used (final)0.0
Projected new Raw rating624.6
Projected new Weighed rating574.6
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating624.6
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)624.6
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
18 Western Cape HS Individuals 2023 (U19 Boys) 2023/04/01 2023/04/02 Cape Town (WCT) Standard 60 0.83 6 6 2.5 1385.1 1314.7 Analysis
17 Cape Winelands Schools Prestige 2023 (U19 Boys) 2023/03/11 2023/03/11 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1364.2 1271.1 Analysis
16 Cape Winelands Schools Chess - Trials 1 2023 (U19 Boys) 2023/02/25 2023/02/25 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1308.5 1221.1 Analysis
15 Langeberg Schools Chess Trials 2023 (U19 Boys+Girls) 2023/02/11 2023/02/11 Cape Winelands (WCW) Rapid 30 0.60 5 5 3.5 1308.5 1250.6 Analysis
14 Lanfeberg Schools Chess Trials 2022 (U18) 2022/02/26 2022/02/26 Cape Winelands (WCW) Rapid 30 0.60 5 5 3.5 1291.9 1218.9 Analysis
13 Cape Winelands Schools Trials 2021 (U18 Boys) 2021/10/16 2021/10/16 Cape Winelands (WCW) Rapid 30 0.60 5 5 2.0 1301.8 1245.2 Analysis
12 Cape Winelands Schools Trials 1 2020 (U15 Boys) 2020/02/15 2020/02/15 Cape Winelands (WCW) Rapid 30 0.60 6 6 4.0 1282.6 1089.8 Analysis
11 2019 South African Junior Team Championships (U16D) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 5.5 1239.4 1156.3 Analysis
10 Robertson Strategema 2019 (U15) 2019/10/05 2019/10/05 Cape Winelands (WCW) Rapid 30 0.60 5 4 3.0 1226.4 1028.2 Analysis
9 Western Cape Schools Individuals 2019 (U15 Boys) 2019/05/04 2019/05/05 Eden District (WEG) Standard 60 0.83 6 6 3.0 1192.0 1107.3 Analysis
8 Cape Winelands Open 2019 (B) 2019/04/27 2019/04/27 Cape Winelands (WCW) Standard 60 0.83 5 5 3.0 1164.2 1007.8 Analysis
7 Cape Winelands Schools Closed 2019 (U15 Boys) 2019/03/16 2019/03/17 Cape Winelands (WCW) Standard 60 0.83 7 7 5.0 1098.1 857.0 Analysis
6 Strategema Robertson 2018 (U13) 2018/09/08 2018/09/08 Cape Winelands (WCW) Rapid 30 0.60 7 5 5.0 1019.8 869.0 Analysis
5 Western Cape Schools Individuals 2018 (U13 Boys) 2018/05/19 2018/05/20 Overberg (WOS) Standard 60 0.83 6 6 3.0 920.4 801.8 Analysis
4 Inter Regional 2018 (U14 Team) 2018/05/04 2018/05/05 Frances Baard (NCF) Standard 60 0.83 5 5 1.0 920.4 801.8 Analysis
3 Cape Winelands Schools Prestige 2018 (U13 Boys) 2018/03/24 2018/03/25 Cape Winelands (WCW) Standard 60 0.83 7 7 5.0 714.4 624.6 Analysis
2 Cape Winelands Schools Trials 1 2018 (U13 Boys) 2018/03/03 2018/03/03 Cape Winelands (WCW) Rapid 30 0.60 6 6 3.0 714.4 761.8 Analysis
1 North Boland Trials 2018 (U13 Boys) 2018/02/17 2018/02/17 Cape Winelands (WCW) Rapid 30 0.60 5 5 4.0 624.6 624.6 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 100 59 10 31 64.0 64.0 119.0 1186.0 1305.0
White 48 28 8 12 32.0 66.7 141.7 1150.2 1291.8
Black 52 31 2 19 32.0 61.5 98.1 1219.1 1317.2
Standard All 59 32 8 19 36.0 61.0 93.6 1172.0 1265.6
White 29 16 6 7 19.0 65.5 131.9 1135.0 1266.9
Black 30 16 2 12 17.0 56.7 56.7 1207.7 1264.3
Rapid All 41 27 2 12 28.0 68.3 155.5 1206.3 1361.8
White 19 12 2 5 13.0 68.4 156.6 1173.3 1329.8
Black 22 15 0 7 15.0 68.2 154.5 1234.8 1389.3
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 1050097108 Segelaar, G (Geriant) 5 1.0 1 0 4 20.0 1142.9 -255.0 887.9 View list
2 1050097104 Van Rooyen, D (De Villiers) 3 3.0 3 0 0 100.0 786.3 425.0 1211.3 View list
3 1050111376 Pienaar, E (Eduardt) 3 2.0 2 0 1 66.7 1256.9 141.7 1398.6 View list
4 1050096516 Cronje, Z (Zander) 2 2.0 2 0 0 100.0 1374.7 425.0 1799.7 View list
5 105060800 Beukes, JC (Jaeden) 2 1.0 1 0 1 50.0 669.5 0.0 669.5 View list
6 105065981 Minnaar, E (Ethan) 2 1.0 0 2 0 50.0 1152.8 0.0 1152.8 View list
7 1040112273 Mitchell, R (Raynard) 2 0.5 0 1 1 25.0 1259.2 -212.5 1046.7 View list
8 104082980 Mercuur, L (Logan) 2 0.0 0 0 2 0.0 1199.9 -425.0 774.9 View list
9 105057149 Van Der Merwe, A (Alexander) 2 0.0 0 0 2 0.0 1295.5 -425.0 870.5 View list
10 106087911 Benvenuto, O (Oscar) 1 1.0 1 0 0 100.0 714.4 425.0 1139.4 View list
11 1060132368 Basson, A (Altus) 1 1.0 1 0 0 100.0 1282.6 425.0 1707.6 View list
12 106087799 Anthony, L (Liquel) 1 1.0 1 0 0 100.0 714.4 425.0 1139.4 View list
13 1050097110 Africa, R (Rajiet) 1 1.0 1 0 0 100.0 714.4 425.0 1139.4 View list
14 1050132371 Botha, M (Marnus) 1 1.0 1 0 0 100.0 1301.8 425.0 1726.8 View list
15 1010098126 Conradie, D (Denrow) 1 1.0 1 0 0 100.0 1164.2 425.0 1589.2 View list
16 104088344 Dilman, L (Laythum) 1 1.0 1 0 0 100.0 1192.0 425.0 1617.0 View list
17 106078288 Africa, G (Gillmore) 1 1.0 1 0 0 100.0 624.6 425.0 1049.6 View list
18 105087805 Daniels, K (Kaylum) 1 1.0 1 0 0 100.0 1282.6 425.0 1707.6 View list
19 1050146199 Cupido, A (Aiden) 1 1.0 1 0 0 100.0 1364.2 425.0 1789.2 View list
20 105046625 De Wet, WJ (Wouter) 1 1.0 1 0 0 100.0 1019.8 425.0 1444.8 View list