Player Page

Van Heerden, EJ (Ethan Joel)
Dob: 2008/05/28 (U18)
Gender: Male
Chess SA id: 108072148
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2024/03/22 (125 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 rating1504.1
Current Weighted rating1531.6
Current Weighted performance1445.9
Current official/published rating (highest between Raw, WR and WP)1531.6
Current highest rating achieved1616.0
Current floor (min rating allowed)1116.0
Current K-factor28
Games played this month-4
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)±107.5
Current Raw change used (final)0.0
Projected new Raw rating1504.1
Projected new Weighed rating1409.1
Projected new Weighted performance1445.9
Projected new final Raw rating (if new WP > new Raw)1504.1
Projected new highest rating1616.0
Projected new floor1116.0
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1504.1
Projected effective change (new Official - current Official)-27.5
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 rating1478.8
Current Weighted rating1500.3
Current Weighted performance1432.6
Current official/published rating (highest between Raw, WR and WP)1500.3
Current highest rating achieved1588.0
Current floor (min rating allowed)1088.0
Current K-factor32
Games played this month-4
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)±111.5
Current Raw change used (final)0.0
Projected new Raw rating1478.8
Projected new Weighed rating1380.2
Projected new Weighted performance1432.6
Projected new final Raw rating (if new WP > new Raw)1478.8
Projected new highest rating1588.0
Projected new floor1088.0
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1478.8
Projected effective change (new Official - current Official)-21.5
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 rating1355.1
Current Weighted rating1305.9
Current Weighted performance1236.0
Current official/published rating (highest between Raw, WR and WP)1355.1
Current highest rating achieved1355.1
Current floor (min rating allowed)855.1
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)±132.9
Current Raw change used (final)0.0
Projected new Raw rating1355.1
Projected new Weighed rating1203.6
Projected new Weighted performance1236.0
Projected new final Raw rating (if new WP > new Raw)1355.1
Projected new highest rating1355.1
Projected new floor855.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1355.1
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 rating959.7
Current Weighted rating860.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)959.7
Current highest rating achieved959.7
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)±233.5
Current Raw change used (final)0.0
Projected new Raw rating959.7
Projected new Weighed rating794.8
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating959.7
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)959.7
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
6 Western Cape HS Individuals Championship 2024 (U18 Boys) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 3.5 1505.3 1472.1 Analysis
5 Cape Winelands Schools - Prestige 2024 (U18 Boys) 2024/03/02 2024/03/02 Cape Winelands (WCW) Standard 60 0.83 5 5 3.5 1505.3 1472.1 Analysis
4 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 4 3.0 1483.9 1448.1 Analysis
3 Cape Winelands Schools - HS Trials 1 2024 (U18 Boys) 2024/02/17 2024/02/17 Cape Winelands (WCW) Rapid 35 0.66 6 6 5.0 1483.9 1312.3 Analysis
2 Cape Winelands - Marie Delport Memorial 2024 (Open) 2024/01/27 2024/01/28 Cape Winelands (WCW) Standard 70 0.87 6 6 4.5 1570.7 1530.7 Analysis
1 Cape Town Masters Challenge 2024 (Advanced) 2024/01/03 2024/01/07 Cape Town (WCT) Standard 120 1.00 7 6 1.0 1570.7 1530.7 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
57 Western Cape HS Individuals Championship 2024 (U18 Boys) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 3.5 1505.3 1472.1 Analysis
56 Cape Winelands Schools - Prestige 2024 (U18 Boys) 2024/03/02 2024/03/02 Cape Winelands (WCW) Standard 60 0.83 5 5 3.5 1505.3 1472.1 Analysis
55 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 4 3.0 1483.9 1448.1 Analysis
54 Cape Winelands Schools - HS Trials 1 2024 (U18 Boys) 2024/02/17 2024/02/17 Cape Winelands (WCW) Rapid 35 0.66 6 6 5.0 1483.9 1312.3 Analysis
53 Cape Winelands - Marie Delport Memorial 2024 (Open) 2024/01/27 2024/01/28 Cape Winelands (WCW) Standard 70 0.87 6 6 4.5 1570.7 1530.7 Analysis
52 Cape Town Masters Challenge 2024 (Advanced) 2024/01/03 2024/01/07 Cape Town (WCT) Standard 120 1.00 7 6 1.0 1570.7 1530.7 Analysis
51 2023 Western Cape Rural Cup (U16) 2023/12/09 2023/12/10 Cape Winelands (WCW) Standard 60 0.83 5 3 2.0 1571.2 1528.8 Analysis
50 Paarl Boys High Chess Festival 2023 (Elite Division) 2023/10/13 2023/10/14 Cape Winelands (WCW) Standard 60 0.83 6 6 3.0 1590.7 1554.4 Analysis
49 Western Cape Top Schools 2023 (U18 Mixed) 2023/09/02 2023/09/03 Cape Winelands (WCW) Standard 60 0.83 6 6 4.0 1616.0 1588.0 Analysis
48 CW Top Schools 2023 (U18 Mix) 2023/08/26 2023/08/26 Cape Winelands (WCW) Rapid 32 0.63 5 5 5.0 1605.6 1227.3 Analysis
47 Cape Winelands Open 2023 (Advanced) 2023/07/22 2023/07/23 Cape Winelands (WCW) Standard 70 0.87 6 5 3.5 1550.7 1516.8 Analysis
46 2023 SA Schools Winter Games (U15 Open) 2023/07/04 2023/07/06 West Rand (GWR) Standard 65 0.85 7 7 5.0 1550.7 1516.8 Analysis
45 WP Closed 2023 (U16) 2023/06/16 2023/06/17 Cape Town (WCT) Standard 70 0.87 6 5 4.0 1516.6 1480.6 Analysis
44 Western Cape HS Individuals 2023 (U15 Boys) 2023/04/01 2023/04/02 Cape Town (WCT) Standard 60 0.83 6 6 4.5 1468.2 1436.1 Analysis
43 Cape Winelands Schools Prestige 2023 (U15 Boys) 2023/03/11 2023/03/11 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1449.1 1423.0 Analysis
42 Cape Winelands Schools Chess - Trials 1 2023 (U15 Boys) 2023/02/25 2023/02/25 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1445.4 1419.8 Analysis
41 Grey College Team Championship 2023 (B) 2023/02/03 2023/02/04 Mangaung (FMB) Standard 60 0.83 5 5 3.0 1445.4 1419.8 Analysis
40 Cape of Good Hope Open 2023 (Advanced) 2023/01/28 2023/01/29 Cape Town (WCT) Standard 70 0.87 6 6 1.5 1546.6 1524.3 Analysis
39 Cape Town Masters Challenge 2023 (Open) 2023/01/04 2023/01/08 Cape Town (WCT) Standard 120 1.00 5 5 1.0 1546.6 1524.3 Analysis
38 Western Cape Top Schools 2022 (U18 Mix) 2022/09/16 2022/09/17 Overberg (WOS) Standard 60 0.83 5 5 4.0 1538.7 1512.3 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 33 18 5 10 20.5 62.1 103.0 1359.9 1462.9
White 16 5 5 6 7.5 46.9 -26.6 1396.5 1369.9
Black 17 13 0 4 13.0 76.5 225.0 1325.5 1550.5
Standard All 27 13 5 9 15.5 57.4 63.0 1388.8 1451.8
White 13 3 5 5 5.5 42.3 -65.4 1426.1 1360.7
Black 14 10 0 4 10.0 71.4 182.1 1354.2 1536.4
Rapid All 6 5 0 1 5.0 83.3 283.3 1229.9 1513.2
White 3 2 0 1 2.0 66.7 141.7 1268.2 1409.9
Black 3 3 0 0 3.0 100.0 425.0 1191.5 1616.5
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 314 176 19 119 185.5 59.1 77.1 1277.1 1354.3
White 160 83 14 63 90.0 56.3 53.1 1278.7 1331.9
Black 154 93 5 56 95.5 62.0 102.1 1275.5 1377.6
Standard All 265 149 19 97 158.5 59.8 83.4 1275.6 1359.0
White 136 69 14 53 76.0 55.9 50.0 1278.8 1328.8
Black 129 80 5 44 82.5 64.0 118.6 1272.2 1390.8
Rapid All 45 27 0 18 27.0 60.0 85.0 1280.1 1365.1
White 22 14 0 8 14.0 63.6 115.9 1293.6 1409.5
Black 23 13 0 10 13.0 56.5 55.4 1267.2 1322.6
Blitz All 4 0 0 4 0.0 0.0 -425.0 1348.5 923.5
White 2 0 0 2 0.0 0.0 -425.0 1114.0 689.0
Black 2 0 0 2 0.0 0.0 -425.0 1583.0 1158.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 107078359 Davids, R (Rafael) 4 2.5 2 1 1 62.5 1486.1 106.3 1592.4 View list
2 108051707 De Wit, M (Marnus) 4 2.5 2 1 1 62.5 1387.5 106.3 1493.8 View list
3 1750099542 Van Heerden, A (Ashley John) 3 3.0 3 0 0 100.0 1274.4 425.0 1699.4 View list
4 108087010 Viljoen, W (Wynand) 3 3.0 3 0 0 100.0 1243.8 425.0 1668.8 View list
5 208087008 Vorster, M (Milla) 3 3.0 3 0 0 100.0 982.1 425.0 1407.1 View list
6 106045226 Palmer, C (Cheslin) 3 2.5 2 1 0 83.3 1535.3 283.3 1818.7 View list
7 108089520 Adams, K (Kyron) 3 2.0 1 2 0 66.7 1457.2 141.7 1598.9 View list
8 109076474 Palmer, J (Jesse) 3 1.0 1 0 2 33.3 1085.0 -141.7 943.4 View list
9 1070138106 Thakersee, A (Akshay) 3 1.0 1 0 2 33.3 1222.6 -141.7 1080.9 View list
10 1110104004 Shapiro, M (Matthew) 3 0.5 0 1 2 16.7 1380.8 -283.3 1097.4 View list
11 1070097985 Anderson, N (Neo) 3 0.0 0 0 3 0.0 1352.4 -425.0 927.4 View list
12 108083939 Rosenberg, W (Wagheed) 3 0.0 0 0 3 0.0 1336.1 -425.0 911.1 View list
13 208090617 Zenzile, A (Amahle) 3 0.0 0 0 3 0.0 1460.8 -425.0 1035.8 View list
14 209084197 Crotz, K (Kirsten) 2 2.0 2 0 0 100.0 1267.0 425.0 1692.0 View list
15 108078407 De Klerk, AJ (Abraham Jacobus) 2 2.0 2 0 0 100.0 1021.8 425.0 1446.8 View list
16 107064069 Drury, N (Nicholas) 2 2.0 2 0 0 100.0 1387.2 425.0 1812.2 View list
17 1080113447 February, E (Ethan) 2 2.0 2 0 0 100.0 1372.8 425.0 1797.8 View list
18 208078018 Kilroe-Smith, G (Gabriella) 2 2.0 2 0 0 100.0 1446.6 425.0 1871.6 View list
19 1070135117 Vassen, K (Keean) 2 2.0 2 0 0 100.0 1382.3 425.0 1807.3 View list
20 1080097987 Velem, R (Renico) 2 2.0 2 0 0 100.0 1473.5 425.0 1898.5 View list