Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Arokiam, E (Ethan)
Dob:
2009/12/14 (U16)
Gender:
Male
Chess SA id:
1090130895
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/05/11 (6 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
1334.0
Curent Weighted rating
1293.6
Curent Weighted performance
1327.6
Current official/published rating (highest between Raw, WR and WP)
1334.0
Current floor (min rating allowed)
926.9
Current highest rating achieved
1426.9
Current K-factor
32
Games played this month
10
Score (S)
5.5
Expected score (We)
4.62
Difference (S-We)
0.88
Current Raw change (no limits, including tournament time weight)
23.4
Current min/max change allowed (with limits)
±137.0
Current Raw change used (final)
23.4
Projected new Raw rating
1357.4
Projected new Weighed rating
1297.6
Projected new Weighted performance
1327.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1357.4
Projected effective change (new Official - current Official)
+23.4
Projected new highest rating
1426.9
Projected new floor
926.9
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
1357.0
Curent Weighted rating
1298.0
Curent Weighted performance
1349.5
Current official/published rating (highest between Raw, WR and WP)
1357.0
Current floor (min rating allowed)
915.1
Current highest rating achieved
1415.1
Current K-factor
32
Games played this month
10
Score (S)
5.5
Expected score (We)
4.98
Difference (S-We)
0.52
Current Raw change (no limits, including tournament time weight)
16.6
Current min/max change allowed (with limits)
±132.6
Current Raw change used (final)
16.6
Projected new Raw rating
1373.6
Projected new Weighed rating
1303.5
Projected new Weighted performance
1349.5
Projected new official/published rating (highest between new Raw, new WR and new WP)
1373.6
Projected effective change (new Official - current Official)
+16.6
Projected new highest rating
1415.1
Projected new floor
915.1
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
1168.7
Curent Weighted rating
1182.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1182.9
Current floor (min rating allowed)
703.2
Current highest rating achieved
1203.2
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)
±173.4
Current Raw change used (final)
0.0
Projected new Raw rating
1168.7
Projected new Weighed rating
1181.3
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1181.3
Projected effective change (new Official - current Official)
-1.7
Projected new highest rating
1203.2
Projected new floor
703.2
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
1190.0
Curent Weighted rating
1192.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1192.6
Current floor (min rating allowed)
703.2
Current highest rating achieved
1190.0
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)
±168.2
Current Raw change used (final)
0.0
Projected new Raw rating
1190.0
Projected new Weighed rating
1192.2
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1192.2
Projected effective change (new Official - current Official)
-0.4
Projected new highest rating
1190.0
Projected new floor
703.2
Projected new K-facor
40
Tournaments
History
Tournament:
JMC Crawford International Sandton 2024 (C)
Start:
2024/05/11
End:
2024/05/11
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
3.5
Main rating:
1334.0
Rating gain/loss:
25.8
Type rating:
1357.0
Rating gain/loss:
26.9
Analysis
Tournament:
JMC Helpmekaar Kollege Tournament 2024 (C)
Start:
2024/05/04
End:
2024/05/04
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.0
Main rating:
1334.0
Rating gain/loss:
-2.4
Type rating:
1357.0
Rating gain/loss:
-10.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
8
JMC Crawford International Sandton 2024 (C)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.5
1334.0
1357.0
Analysis
7
JMC Helpmekaar Kollege Tournament 2024 (C)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1334.0
1357.0
Analysis
6
2024 Silver Lakes Open Chess Tournament (D2)
2024/04/20
2024/04/20
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1318.9
1333.5
Analysis
5
Ekurhuleni Open 2024 (B)
2024/04/06
2024/04/06
Ekurhuleni (GE)
Standard
60
0.83
5
5
2.5
1318.9
1333.5
Analysis
4
JMC Unika School Tournament 2024 (C)
2024/03/02
2024/03/02
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1308.5
1322.6
Analysis
3
Chess Power House 1st Rapid 2024 (A)
2024/02/24
2024/02/24
Johannesburg Metro (GJM)
Rapid
20
0.47
5
5
2.0
1307.0
1168.3
Analysis
2
JMC Kick Off Tournament 2024 (C)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1244.3
1259.9
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U16C)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1244.3
1259.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
42
JMC Crawford International Sandton 2024 (C)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.5
1334.0
1357.0
Analysis
41
JMC Helpmekaar Kollege Tournament 2024 (C)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1334.0
1357.0
Analysis
40
2024 Silver Lakes Open Chess Tournament (D2)
2024/04/20
2024/04/20
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1318.9
1333.5
Analysis
39
Ekurhuleni Open 2024 (B)
2024/04/06
2024/04/06
Ekurhuleni (GE)
Standard
60
0.83
5
5
2.5
1318.9
1333.5
Analysis
38
JMC Unika School Tournament 2024 (C)
2024/03/02
2024/03/02
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1308.5
1322.6
Analysis
37
Chess Power House 1st Rapid 2024 (A)
2024/02/24
2024/02/24
Johannesburg Metro (GJM)
Rapid
20
0.47
5
5
2.0
1307.0
1168.3
Analysis
36
JMC Kick Off Tournament 2024 (C)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1244.3
1259.9
Analysis
35
2024 Gauteng Inter-Region Chess Championship (U16C)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1244.3
1259.9
Analysis
34
Mzansi Bryanston Rapid 2023 (Intermediate)
2023/10/07
2023/10/07
Johannesburg Metro (GJM)
Rapid
25
0.54
5
4
1.0
1274.7
1203.2
Analysis
33
St Peters College Chess League 2023 (A)
2023/09/11
2023/10/23
Johannesburg Metro (GJM)
Standard
60
0.83
6
3
1.0
1274.7
1279.4
Analysis
32
ThinkChess Academy 2023 (A)
2023/09/09
2023/09/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1277.3
1285.8
Analysis
31
Mzansi Spring Rapid 2023
2023/09/02
2023/09/02
Johannesburg Metro (GJM)
Rapid
15
0.39
7
7
3.0
1277.3
1200.0
Analysis
30
Chess Power House 2023 (B)
2023/08/19
2023/08/19
Johannesburg Metro (GJM)
Standard
90
0.94
5
5
1.5
1314.0
1327.4
Analysis
29
JMC Trinity Little Falls 2023 (B)
2023/07/02
2023/07/02
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
1.5
1318.2
1329.5
Analysis
28
JNW Open - Trinityhouse Little Falls 2023 (B)
2023/06/24
2023/06/24
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1238.3
1208.7
Analysis
27
JMC Blitz - Higher Ground 2023
2023/06/17
2023/06/17
Johannesburg Metro (GJM)
Blitz
8
0.25
7
6
3.0
1238.3
1200.0
Analysis
26
GoForChess Junior Chess Championship 2023 (Senior)
2023/06/10
2023/06/10
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1238.3
1208.7
Analysis
25
Wynie Robbertse Open Tournament 2023 (B)
2023/06/03
2023/06/03
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1238.3
1208.7
Analysis
24
Gauteng Open Arnold Classic 2023 (C)
2023/05/20
2023/05/20
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1229.8
1192.4
Analysis
23
2023 Milos Ristic Open Tournament (B)
2023/04/27
2023/04/27
Tshwane (GTP)
Standard
60
0.83
5
4
0.0
1273.9
1243.9
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
40
20
5
15
22.5
56.3
53.1
1332.8
1386.0
White
19
11
2
6
12.0
63.2
111.8
1344.6
1456.5
Black
21
9
3
9
10.5
50.0
0.0
1322.2
1322.2
Standard
All
35
18
5
12
20.5
58.6
72.9
1322.9
1395.8
White
17
10
2
5
11.0
64.7
125.0
1337.9
1462.9
Black
18
8
3
7
9.5
52.8
23.6
1308.8
1332.4
Rapid
All
5
2
0
3
2.0
40.0
-85.0
1402.1
1317.1
White
2
1
0
1
1.0
50.0
0.0
1402.0
1402.0
Black
3
1
0
2
1.0
33.3
-141.7
1402.1
1260.4
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
211
98
18
95
107.0
50.7
6.0
1293.3
1299.3
White
106
45
12
49
51.0
48.1
-16.0
1301.0
1285.0
Black
105
53
6
46
56.0
53.3
28.3
1285.4
1313.8
Standard
All
189
89
18
82
98.0
51.9
15.7
1281.5
1297.3
White
95
41
12
42
47.0
49.5
-4.5
1289.1
1284.6
Black
94
48
6
40
51.0
54.3
36.2
1273.9
1310.0
Rapid
All
16
6
0
10
6.0
37.5
-106.3
1393.6
1287.3
White
8
4
0
4
4.0
50.0
0.0
1352.0
1352.0
Black
8
2
0
6
2.0
25.0
-212.5
1435.2
1222.7
Blitz
All
6
3
0
3
3.0
50.0
0.0
1395.0
1395.0
White
3
0
0
3
0.0
0.0
-425.0
1541.8
1116.8
Black
3
3
0
0
3.0
100.0
425.0
1248.3
1673.3
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
108082807
Joseph, J (Jamie)
3
2.0
2
0
1
66.7
1286.8
141.7
1428.5
View list
2
2090108309
Maharaj, A (Anaamika)
3
2.0
2
0
1
66.7
1258.8
141.7
1400.5
View list
3
1140135557
Thorulsley, K (Kairaav)
3
2.0
2
0
1
66.7
1304.9
141.7
1446.6
View list
4
2100108310
Maharaj, A (Arya)
3
1.5
1
1
1
50.0
1278.7
0.0
1278.7
View list
5
1100110075
Mupalala, K (Kenzo)
3
1.5
1
1
1
50.0
1304.8
0.0
1304.8
View list
6
1090105698
Naicker, GC (Gabriel Christian)
3
1.0
1
0
2
33.3
1385.4
-141.7
1243.7
View list
7
109089434
Van Loggerenberg, L (Logan)
3
0.0
0
0
3
0.0
1282.2
-425.0
857.2
View list
8
1080143807
Cruikshanks, C (Connor)
2
2.0
2
0
0
100.0
1276.4
425.0
1701.4
View list
9
208073206
Fauconier, A (Amber)
2
2.0
2
0
0
100.0
1318.2
425.0
1743.2
View list
10
1100116575
Iyer, A (Aditya)
2
2.0
2
0
0
100.0
1310.8
425.0
1735.8
View list
11
1130130727
Badenhorst, M (Matthew)
2
1.5
1
1
0
75.0
1290.7
212.5
1503.2
View list
12
111092267
D`Alton, E (Ezra)
2
1.5
1
1
0
75.0
1305.7
212.5
1518.2
View list
13
1110134884
Habangana, B (Bushe)
2
1.5
1
1
0
75.0
1269.0
212.5
1481.5
View list
14
1100133076
Hazelton-Lagarrigue, V (Vincent)
2
1.5
1
1
0
75.0
1225.8
212.5
1438.3
View list
15
1080143808
Dukhan, K (Kashvir)
2
1.0
1
0
1
50.0
1302.4
0.0
1302.4
View list
16
2120115655
Mugaragumbo, A (Amour)
2
1.0
1
0
1
50.0
1231.6
0.0
1231.6
View list
17
1120111803
Retief, A (Antonie)
2
1.0
1
0
1
50.0
1285.8
0.0
1285.8
View list
18
1100117290
Weng, Y (Yu Bo (David))
2
1.0
1
0
1
50.0
1302.4
0.0
1302.4
View list
19
109086017
Roetz, K (Kyle)
2
0.5
0
1
1
25.0
1325.7
-212.5
1113.2
View list
20
109069449
Boheim, E (Eugene)
2
0.0
0
0
2
0.0
1291.2
-425.0
866.2
View list