Chess South Africa
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Chess South Africa
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 (51 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1504.1
Curent Weighted rating
1535.7
Curent Weighted performance
1484.4
Current official/published rating (highest between Raw, WR and WP)
1535.7
Current floor (min rating allowed)
1116.0
Current highest rating achieved
1616.0
Current K-factor
28
Games played this month
0
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 rating
1504.1
Projected new Weighed rating
1533.7
Projected new Weighted performance
1484.4
Projected new official/published rating (highest between new Raw, new WR and new WP)
1533.7
Projected effective change (new Official - current Official)
-2.0
Projected new highest rating
1616.0
Projected new floor
1116.0
Projected new K-facor
28
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 rating
1478.8
Curent Weighted rating
1503.6
Curent Weighted performance
1454.8
Current official/published rating (highest between Raw, WR and WP)
1503.6
Current floor (min rating allowed)
1088.0
Current highest rating achieved
1588.0
Current K-factor
32
Games played this month
0
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 rating
1478.8
Projected new Weighed rating
1502.0
Projected new Weighted performance
1454.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1502.0
Projected effective change (new Official - current Official)
-1.6
Projected new highest rating
1588.0
Projected new floor
1088.0
Projected new K-facor
32
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 rating
1355.1
Curent Weighted rating
1292.4
Curent Weighted performance
1256.4
Current official/published rating (highest between Raw, WR and WP)
1355.1
Current floor (min rating allowed)
855.1
Current highest rating achieved
1355.1
Current K-factor
36
Games played this month
0
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 rating
1355.1
Projected new Weighed rating
1299.4
Projected new Weighted performance
1256.4
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
Projected new highest rating
1355.1
Projected new floor
855.1
Projected new K-facor
36
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 rating
959.7
Curent Weighted rating
836.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
959.7
Current floor (min rating allowed)
855.1
Current highest rating achieved
959.7
Current K-factor
40
Games played this month
0
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 rating
959.7
Projected new Weighed rating
848.8
Projected new Weighted performance
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
Projected new highest rating
959.7
Projected new floor
855.1
Projected new K-facor
40
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
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
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
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
1
2
3
Game History
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
107078359
Davids, R (Rafael)
4
2.5
2
1
1
62.5
1486.1
106.3
1592.3
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