Chess South Africa
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Chess South Africa
Jaftha, J (Jeyhlin)
Dob:
2006/06/22 (U20)
Gender:
Male
Chess SA id:
106064704
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/04/20 (23 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
1393.9
Curent Weighted rating
1406.9
Curent Weighted performance
1326.9
Current official/published rating (highest between Raw, WR and WP)
1406.9
Current floor (min rating allowed)
925.4
Current highest rating achieved
1425.4
Current K-factor
32
Games played this month
6
Score (S)
5.5
Expected score (We)
4.09
Difference (S-We)
1.41
Current Raw change (no limits, including tournament time weight)
24.4
Current min/max change allowed (with limits)
±125.8
Current Raw change used (final)
24.4
Projected new Raw rating
1418.3
Projected new Weighed rating
1408.8
Projected new Weighted performance
1326.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1418.3
Projected effective change (new Official - current Official)
+11.4
Projected new highest rating
1425.4
Projected new floor
925.4
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
1370.6
Curent Weighted rating
1383.2
Curent Weighted performance
1312.0
Current official/published rating (highest between Raw, WR and WP)
1383.2
Current floor (min rating allowed)
911.9
Current highest rating achieved
1411.9
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)
±130.0
Current Raw change used (final)
0.0
Projected new Raw rating
1370.6
Projected new Weighed rating
1382.9
Projected new Weighted performance
1312.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1382.9
Projected effective change (new Official - current Official)
-0.3
Projected new highest rating
1411.9
Projected new floor
911.9
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
1303.5
Curent Weighted rating
1250.6
Curent Weighted performance
1212.1
Current official/published rating (highest between Raw, WR and WP)
1303.5
Current floor (min rating allowed)
803.5
Current highest rating achieved
1303.5
Current K-factor
36
Games played this month
6
Score (S)
5.5
Expected score (We)
3.96
Difference (S-We)
1.54
Current Raw change (no limits, including tournament time weight)
55.4
Current min/max change allowed (with limits)
±143.1
Current Raw change used (final)
55.4
Projected new Raw rating
1358.9
Projected new Weighed rating
1263.7
Projected new Weighted performance
1212.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1358.9
Projected effective change (new Official - current Official)
+55.4
Projected new highest rating
1358.9
Projected new floor
858.9
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
1213.5
Curent Weighted rating
859.3
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1213.5
Current floor (min rating allowed)
803.5
Current highest rating achieved
1213.5
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)
±162.7
Current Raw change used (final)
0.0
Projected new Raw rating
1213.5
Projected new Weighed rating
894.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1213.5
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1213.5
Projected new floor
803.5
Projected new K-facor
36
Tournaments
History
Tournament:
Cape Town Junior League - Qualifier 2 2024 (U18)
Start:
2024/04/20
End:
2024/04/20
Host:
WCT
Type:
Rapid
Time:
25
Time weight:
0.54
Rounds:
6
Games:
6
Score:
5.5
Main rating:
1393.9
Rating gain/loss:
24.4
Type rating:
1303.5
Rating gain/loss:
55.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
5
Cape Town Junior League - Qualifier 2 2024 (U18)
2024/04/20
2024/04/20
Cape Town (WCT)
Rapid
25
0.54
6
6
5.5
1393.9
1303.5
Analysis
4
Cape Town Junior League Qualifier 2024 (U18 Open)
2024/04/06
2024/04/06
Cape Town (WCT)
Rapid
25
0.54
6
6
3.0
1390.8
1297.0
Analysis
3
Cape Town Open Chess Championship 2024 (Advanced)
2024/03/15
2024/03/17
Cape Town (WCT)
Standard
90
0.94
6
6
2.0
1412.4
1387.6
Analysis
2
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1412.4
1387.6
Analysis
1
CT District East Schools Chess Individuals Trails 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1425.4
1396.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
45
Cape Town Junior League - Qualifier 2 2024 (U18)
2024/04/20
2024/04/20
Cape Town (WCT)
Rapid
25
0.54
6
6
5.5
1393.9
1303.5
Analysis
44
Cape Town Junior League Qualifier 2024 (U18 Open)
2024/04/06
2024/04/06
Cape Town (WCT)
Rapid
25
0.54
6
6
3.0
1390.8
1297.0
Analysis
43
Cape Town Open Chess Championship 2024 (Advanced)
2024/03/15
2024/03/17
Cape Town (WCT)
Standard
90
0.94
6
6
2.0
1412.4
1387.6
Analysis
42
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Boys)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1412.4
1387.6
Analysis
41
CT District East Schools Chess Individuals Trails 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1425.4
1396.9
Analysis
40
CW Top Schools 2023 (Advanced)
2023/08/11
2023/08/13
West Coast (WCU)
Standard
90
0.94
6
6
3.0
1396.8
1362.0
Analysis
39
CT Metro District East Top Schools Chess 2023 (U17+U19 Mixed)
2023/07/29
2023/07/29
Cape Town (WCT)
Rapid
30
0.60
5
5
2.0
1404.5
1297.5
Analysis
38
Curro Durbanville Chess Open Rapid 2023 (Advanced)
2023/07/15
2023/07/15
Cape Town (WCT)
Rapid
35
0.66
6
6
2.0
1404.5
1297.5
Analysis
37
GPCA Rapid 2023 (Advanced)
2023/06/24
2023/06/24
Cape Town (WCT)
Rapid
25
0.54
7
7
4.5
1395.7
1191.4
Analysis
36
Hermanus Rapid 2023 (B)
2023/04/22
2023/04/22
Overberg (WOS)
Rapid
25
0.54
6
6
4.0
1396.1
1092.6
Analysis
35
Western Cape HS Individuals 2023 (U17 Boys)
2023/04/01
2023/04/02
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1396.1
1394.0
Analysis
34
Cape Town Open 2023 (Advanced)
2023/03/24
2023/03/26
Cape Town (WCT)
Standard
90
0.94
6
6
3.0
1394.6
1394.3
Analysis
33
Cape Town Metro Schools Chess Closed Individuals 2023 (U17 Boys)
2023/03/03
2023/03/04
Cape Town (WCT)
Standard
60
0.83
6
6
3.5
1394.6
1394.3
Analysis
32
District East Schools Chess Individual Trials 2023 (U17 Boys)
2023/02/03
2023/02/04
Cape Town (WCT)
Standard
60
0.83
6
6
4.0
1382.6
1380.5
Analysis
31
Kraaifontein Open 2022 (Advanced)
2022/12/16
2022/12/18
Cape Town (WCT)
Standard
90
0.94
6
6
2.0
1408.2
1411.9
Analysis
30
Metro Rapid 2022 (U18 Boys)
2022/10/22
2022/10/22
Cape Town (WCT)
Rapid
30
0.60
4
4
2.0
1337.5
1054.2
Analysis
29
Western Cape Closed Championship 2022 (Prestige)
2022/09/24
2022/09/25
Cape Winelands (WCW)
Standard
70
0.87
6
6
3.0
1321.4
1312.2
Analysis
28
2022 Western Province Club League (D)
2022/08/27
2022/10/01
Cape Town (WCT)
Standard
70
0.87
7
1
0.5
1337.5
1331.6
Analysis
27
2022 Western Province Club League (C)
2022/08/20
2022/10/01
Cape Town (WCT)
Standard
120
1.00
11
8
7.0
1337.5
1331.6
Analysis
26
South African Open 2022 (B)
2022/07/09
2022/07/17
Cape Town (WCT)
Standard
120
1.00
11
11
5.5
1332.4
1301.0
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
29
14
6
9
17.0
58.6
73.3
1342.4
1415.6
White
15
9
1
5
9.5
63.3
113.3
1317.5
1430.9
Black
14
5
5
4
7.5
53.6
30.4
1369.0
1399.3
Standard
All
17
6
5
6
8.5
50.0
0.0
1353.1
1353.1
White
9
5
0
4
5.0
55.6
47.2
1348.0
1395.3
Black
8
1
5
2
3.5
43.8
-53.1
1358.8
1305.7
Rapid
All
12
8
1
3
8.5
70.8
177.1
1327.1
1504.2
White
6
4
1
1
4.5
75.0
212.5
1271.8
1484.3
Black
6
4
0
2
4.0
66.7
141.7
1382.5
1524.2
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
261
119
49
93
143.5
55.0
42.3
1307.7
1350.0
White
130
57
24
49
69.0
53.1
26.2
1307.2
1333.4
Black
131
62
25
44
74.5
56.9
58.4
1308.2
1366.6
Standard
All
183
82
39
62
101.5
55.5
46.4
1306.3
1352.7
White
92
39
18
35
48.0
52.2
18.5
1309.4
1327.9
Black
91
43
21
27
53.5
58.8
74.7
1303.1
1377.8
Rapid
All
71
34
10
27
39.0
54.9
41.9
1326.7
1368.6
White
34
17
6
11
20.0
58.8
75.0
1323.4
1398.4
Black
37
17
4
16
19.0
51.4
11.5
1329.8
1341.3
Blitz
All
7
3
0
4
3.0
42.9
-60.7
1151.7
1091.0
White
4
1
0
3
1.0
25.0
-212.5
1118.4
905.9
Black
3
2
0
1
2.0
66.7
141.7
1196.1
1337.7
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
108087782
Jonkers, T (Tristan)
4
2.5
2
1
1
62.5
1356.3
106.3
1462.5
View list
2
1060108786
Blauw, S (Siyamthanda)
4
0.0
0
0
4
0.0
1399.4
-425.0
974.4
View list
3
107087105
Brink, W (Wihan)
3
2.0
2
0
1
66.7
1182.5
141.7
1324.1
View list
4
108083939
Rosenberg, W (Wagheed)
3
1.0
0
2
1
33.3
1380.4
-141.7
1238.8
View list
5
1060096732
Van Tonder, W (Wium)
3
1.0
0
2
1
33.3
1371.4
-141.7
1229.7
View list
6
1060097568
Mizen, D (Daniel)
2
2.0
2
0
0
100.0
1374.2
425.0
1799.2
View list
7
205053638
Palmer, ZE (Zante)
2
1.5
1
1
0
75.0
1398.8
212.5
1611.3
View list
8
1080193268
Petersen-Bizaare, S (Shaqeel)
2
1.5
1
1
0
75.0
1418.9
212.5
1631.4
View list
9
1080108770
Williams, K (Kylo)
2
1.5
1
1
0
75.0
1403.2
212.5
1615.7
View list
10
1060096574
Bell, A (Ayakha)
2
1.0
1
0
1
50.0
867.6
0.0
867.6
View list
11
106065267
Becker, M (Matthew)
2
1.0
1
0
1
50.0
1248.3
0.0
1248.3
View list
12
205053625
Blows, K (Kiara)
2
1.0
1
0
1
50.0
1238.5
0.0
1238.5
View list
13
2110130686
Joya, I (Imkhita)
2
1.0
1
0
1
50.0
1397.0
0.0
1397.0
View list
14
1080108756
Masoka, A (Ayema)
2
1.0
1
0
1
50.0
1326.9
0.0
1326.9
View list
15
1100109057
Tsabola, B (Bright)
2
1.0
1
0
1
50.0
1363.5
0.0
1363.5
View list
16
2070096482
Ziegers, Z (Zaskia)
2
1.0
1
0
1
50.0
1272.7
0.0
1272.7
View list
17
1060150614
Kannemeyer, D (David)
2
1.0
0
2
0
50.0
1395.3
0.0
1395.3
View list
18
2030107204
Osborne, N (Nicole)
2
1.0
0
2
0
50.0
1337.3
0.0
1337.3
View list
19
107092100
Bomela, N (Nlantha)
2
0.5
0
1
1
25.0
1110.3
-212.5
897.8
View list
20
1120130970
Bell, L (Luke)
2
0.5
0
1
1
25.0
1360.9
-212.5
1148.4
View list