Player Page

Coetzee, JS (Justin)
Dob: 1986/10/14 (Adult)
Gender: Male
Chess SA id: 186005214
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2022/12/03 (518 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 rating1356.0
Curent Weighted rating1356.3
Curent Weighted performance1024.1
Current official/published rating (highest between Raw, WR and WP)1356.3
Current floor (min rating allowed)902.9
Current highest rating achieved1402.9
Current K-factor32
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)±132.8
Current Raw change used (final)0.0
Projected new Raw rating1356.0
Projected new Weighed rating1356.1
Projected new Weighted performance1024.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1356.1
Projected effective change (new Official - current Official)-0.1
Projected new highest rating1402.9
Projected new floor902.9
Projected new K-facor32
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 rating1358.4
Curent Weighted rating1358.8
Curent Weighted performance1059.7
Current official/published rating (highest between Raw, WR and WP)1358.8
Current floor (min rating allowed)912.9
Current highest rating achieved1412.9
Current K-factor32
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)±132.3
Current Raw change used (final)0.0
Projected new Raw rating1358.4
Projected new Weighed rating1358.7
Projected new Weighted performance1059.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1358.7
Projected effective change (new Official - current Official)-0.1
Projected new highest rating1412.9
Projected new floor912.9
Projected new K-facor32
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 rating1354.1
Curent Weighted rating1354.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1354.1
Current floor (min rating allowed)854.1
Current highest rating achieved1354.1
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)±133.1
Current Raw change used (final)0.0
Projected new Raw rating1354.1
Projected new Weighed rating1354.1
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1354.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1354.1
Projected new floor854.1
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 rating1322.6
Curent Weighted rating1323.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1323.0
Current floor (min rating allowed)854.1
Current highest rating achieved1436.5
Current K-factor32
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)±139.2
Current Raw change used (final)0.0
Projected new Raw rating1322.6
Projected new Weighed rating1322.6
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1322.6
Projected effective change (new Official - current Official)-0.4
Projected new highest rating1436.5
Projected new floor854.1
Projected new K-facor32
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
15 George Open 2022 (A) 2022/12/03 2022/12/03 Eden District (WEG) Standard 60 0.83 5 4 1.0 1358.9 1364.5 Analysis
14 South African Open 2022 (Blitz) 2022/07/14 2022/07/14 Cape Town (WCT) Blitz 5 0.18 10 10 3.5 1373.4 1436.5 Analysis
13 South African Open 2022 (B) 2022/07/09 2022/07/17 Cape Town (WCT) Standard 120 1.00 11 11 6.0 1373.4 1370.3 Analysis
12 George Open 2022 (A) 2022/06/11 2022/06/11 Eden District (WEG) Standard 65 0.85 5 5 2.0 1382.9 1382.5 Analysis
11 Steinitz Open 2022 (B) 2022/05/20 2022/05/22 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1362.4 1363.6 Analysis
10 Eden Open 2022 (A) 2022/04/22 2022/04/24 Eden District (WEG) Standard 65 0.85 6 6 3.0 1347.7 1343.8 Analysis
9 Western Cape Club Championships 2021 (B) 2021/10/15 2021/10/17 Eden District (WEG) Standard 65 0.85 6 6 3.0 1334.9 1330.0 Analysis
8 2019 Western Cape Club Championship (A+B) 2019/10/25 2019/10/27 Overberg (WOS) Standard 65 0.85 6 5 3.0 1303.3 1290.3 Analysis
7 Pacaltsdorp Open 2019 (A) 2019/08/30 2019/08/31 Eden District (WEG) Standard 62 0.84 6 5 2.0 1321.0 1310.5 Analysis
6 South African Open 2018 (Blitz) 2018/07/11 2018/07/11 Mangaung (FMB) Blitz 5 0.18 9 9 4.5 1348.4 1354.1 Analysis
5 South African Open 2018 (B) 2018/07/07 2018/07/14 Mangaung (FMB) Standard 150 1.00 11 11 5.5 1348.4 1348.6 Analysis
4 Oudtshoorn Open 2018 2018/06/29 2018/06/30 Eden District (WEG) Standard 60 0.83 6 6 2.5 1402.9 1412.9 Analysis
3 King Cars PECC Grand Prix Third Leg 2018 2018/06/22 2018/06/24 Nelson Mandela Bay (ENM) Standard 92 0.94 6 5 2.0 1402.9 1412.9 Analysis
2 Pacaltsdorp Chess Club Open 2018 (A) 2018/05/25 2018/05/26 Eden District (WEG) Standard 60 0.83 6 6 4.0 1354.1 1354.1 Analysis
1 Calitzdorp Ope 2018 2018/05/05 2018/05/05 Eden District (WEG) Standard 60 0.83 5 5 3.5 1354.1 1354.1 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 42 13 45 48.5 48.5 -12.8 1381.3 1368.6
White 49 16 8 25 20.0 40.8 -78.1 1401.9 1323.8
Black 51 26 5 20 28.5 55.9 50.0 1361.6 1411.6
Standard All 81 35 11 35 40.5 50.0 0.0 1361.2 1361.2
White 39 13 7 19 16.5 42.3 -65.4 1379.9 1314.5
Black 42 22 4 16 24.0 57.1 60.7 1343.8 1404.6
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 19 7 2 10 8.0 42.1 -67.1 1467.1 1400.0
White 10 3 1 6 3.5 35.0 -127.5 1487.7 1360.2
Black 9 4 1 4 4.5 50.0 0.0 1444.2 1444.2
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 198065504 Jaars, T (Thomas) 3 2.0 1 2 0 66.7 1368.2 141.7 1509.9 View list
2 199009456 Fielies, H (Henrique) 2 2.0 2 0 0 100.0 1338.3 425.0 1763.3 View list
3 147031319 Quirk, T (Terence) 2 2.0 2 0 0 100.0 1325.5 425.0 1750.5 View list
4 181033053 Samson, H (Henry) 2 1.5 1 1 0 75.0 1368.5 212.5 1581.0 View list
5 1050106566 Makaula, V (Vumankosi) 2 1.0 1 0 1 50.0 1373.4 0.0 1373.4 View list
6 192037054 Swartbooi, G (Gabriel) 2 1.0 1 0 1 50.0 1356.5 0.0 1356.5 View list
7 189002582 Booys, LI (Leatin) 2 0.0 0 0 2 0.0 1348.7 -425.0 923.7 View list
8 190017240 Lawerlot, GLR (George) 2 0.0 0 0 2 0.0 1354.1 -425.0 929.1 View list
9 180020180 Malgas, GL (Glenwell) 2 0.0 0 0 2 0.0 1402.9 -425.0 977.9 View list
10 186009575 Floors, R (Romano) 1 1.0 1 0 0 100.0 1402.9 425.0 1827.9 View list
11 199078225 Adams, D (Delbert) 1 1.0 1 0 0 100.0 1334.9 425.0 1759.9 View list
12 164009064 Esau, O (Omar) 1 1.0 1 0 0 100.0 1362.4 425.0 1787.4 View list
13 108072976 Du Plessis, A (Arno) 1 1.0 1 0 0 100.0 1358.9 425.0 1783.9 View list
14 184005799 Crowther, FF (Filip) 1 1.0 1 0 0 100.0 1348.4 425.0 1773.4 View list
15 184005559 Cornforth, RM (Rodney) 1 1.0 1 0 0 100.0 1382.9 425.0 1807.9 View list
16 287094417 Conradie, M (Magda) 1 1.0 1 0 0 100.0 1354.1 425.0 1779.1 View list
17 106061659 Coetsee, W (Wilco) 1 1.0 1 0 0 100.0 1354.1 425.0 1779.1 View list
18 187004356 Chaava, A (Aaron) 1 1.0 1 0 0 100.0 1347.7 425.0 1772.7 View list
19 207090606 Gcuze, K (Khanya) 1 1.0 1 0 0 100.0 1373.4 425.0 1798.4 View list
20 1810116440 Greeff, R (Reginald) 1 1.0 1 0 0 100.0 1373.4 425.0 1798.4 View list