Chess South Africa
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Chess South Africa
Botha, JCC (Johannes Christiaan Corneli)
Dob:
2011/12/21 (U14)
Gender:
Male
Chess SA id:
1110118128
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2024/05/04 (15 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
1564.1
Curent Weighted rating
1566.7
Curent Weighted performance
1484.3
Current official/published rating (highest between Raw, WR and WP)
1566.7
Current floor (min rating allowed)
1162.7
Current highest rating achieved
1662.7
Current K-factor
28
Games played this month
14
Score (S)
4.5
Expected score (We)
8.14
Difference (S-We)
-3.64
Current Raw change (no limits, including tournament time weight)
-96.8
Current min/max change allowed (with limits)
±98.7
Current Raw change used (final)
-96.8
Projected new Raw rating
1467.3
Projected new Weighed rating
1558.6
Projected new Weighted performance
1484.3
Projected new official/published rating (highest between new Raw, new WR and new WP)
1558.6
Projected effective change (new Official - current Official)
-8.1
Projected new highest rating
1662.7
Projected new floor
1162.7
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
1556.4
Curent Weighted rating
1561.8
Curent Weighted performance
1478.7
Current official/published rating (highest between Raw, WR and WP)
1561.8
Current floor (min rating allowed)
1162.5
Current highest rating achieved
1662.5
Current K-factor
28
Games played this month
14
Score (S)
4.5
Expected score (We)
8.37
Difference (S-We)
-3.87
Current Raw change (no limits, including tournament time weight)
-108.4
Current min/max change allowed (with limits)
±99.8
Current Raw change used (final)
-99.8
Projected new Raw rating
1456.6
Projected new Weighed rating
1553.2
Projected new Weighted performance
1478.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1553.2
Projected effective change (new Official - current Official)
-8.6
Projected new highest rating
1662.5
Projected new floor
1162.5
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
1255.6
Curent Weighted rating
1253.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1255.6
Current floor (min rating allowed)
755.6
Current highest rating achieved
1255.6
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)
±153.2
Current Raw change used (final)
0.0
Projected new Raw rating
1255.6
Projected new Weighed rating
1254.5
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1255.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1255.6
Projected new floor
755.6
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
755.6
Current highest rating achieved
1200.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1200.0
Projected new floor
755.6
Projected new K-facor
36
Tournaments
History
Tournament:
JMC Helpmekaar Kollege Tournament 2024 (B)
Start:
2024/05/04
End:
2024/05/04
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.5
Main rating:
1564.1
Rating gain/loss:
-24.9
Type rating:
1556.4
Rating gain/loss:
-35.8
Analysis
Tournament:
South African Junior Closed Chess Championship 2024 (U14 Open)
Start:
2024/04/27
End:
2024/05/01
Host:
GE
Type:
Standard
Time:
120
Time weight:
1.00
Rounds:
9
Games:
9
Score:
2.0
Main rating:
1564.1
Rating gain/loss:
-72.0
Type rating:
1556.4
Rating gain/loss:
-72.5
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
7
JMC Helpmekaar Kollege Tournament 2024 (B)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1564.1
1556.4
Analysis
6
South African Junior Closed Chess Championship 2024 (U14 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
2.0
1564.1
1556.4
Analysis
5
Westwood Open 2024 (A)
2024/04/13
2024/04/13
Ekurhuleni (GE)
Standard
60
0.83
5
4
3.0
1572.5
1568.2
Analysis
4
JNW Open - Classic - Crawford 2024 (B)
2024/03/09
2024/03/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1564.8
1558.4
Analysis
3
2024 Constantiapark Open (B)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1576.7
1574.9
Analysis
2
JMC Kick Off Tournament 2024 (B)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1581.5
1578.8
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U14A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
3.0
1581.5
1578.8
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
39
JMC Helpmekaar Kollege Tournament 2024 (B)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1564.1
1556.4
Analysis
38
South African Junior Closed Chess Championship 2024 (U14 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
2.0
1564.1
1556.4
Analysis
37
Westwood Open 2024 (A)
2024/04/13
2024/04/13
Ekurhuleni (GE)
Standard
60
0.83
5
4
3.0
1572.5
1568.2
Analysis
36
JNW Open - Classic - Crawford 2024 (B)
2024/03/09
2024/03/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1564.8
1558.4
Analysis
35
2024 Constantiapark Open (B)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1576.7
1574.9
Analysis
34
JMC Kick Off Tournament 2024 (B)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1581.5
1578.8
Analysis
33
2024 Gauteng Inter-Region Chess Championship (U14A)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
3.0
1581.5
1578.8
Analysis
32
2023 Gauteng Top Schools (U13 Mixed)
2023/08/18
2023/08/18
West Rand (GWR)
Standard
60
0.83
5
5
5.0
1530.3
1525.8
Analysis
31
2023 Ekurhuleni North District Schools Finals (U13)
2023/07/29
2023/07/29
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1516.6
1507.6
Analysis
30
Gauteng Schools Individual Finals 2023 (U13 Boys)
2023/05/26
2023/05/26
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1534.0
1518.5
Analysis
29
Gauteng Open Arnold Classic 2023 (Open)
2023/05/20
2023/05/21
Tshwane (GTP)
Standard
90
0.94
5
4
0.0
1534.0
1518.5
Analysis
28
Ekurhuleni North Schools Individual Finals 2023 (U13 Boys)
2023/05/12
2023/05/12
Ekurhuleni (GE)
Standard
60
0.83
5
5
5.0
1534.0
1518.5
Analysis
27
Ekurhuleni Trials 2 2023 (U14)
2023/04/22
2023/04/22
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1569.9
1562.7
Analysis
26
Alberton Chess Club Tournament 1 2023 (B)
2023/04/15
2023/04/15
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1569.9
1562.7
Analysis
25
2023 South African Junior Closed Chess Championships (U12 Open)
2023/03/31
2023/04/04
Chess South Africa (CSA)
Standard
120
1.00
9
9
5.0
1569.9
1562.7
Analysis
24
Ekhuruleni Chess Trials 1 2023 (U14)
2023/03/25
2023/03/25
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1579.4
1575.0
Analysis
23
2022 South African Junior Team Chess Championships (U12 Open)
2022/12/04
2022/12/08
4 Knights (4K)
Standard
120
1.00
7
7
6.0
1558.1
1554.0
Analysis
22
Super 8 Skaak 2022 (Seniors)
2022/10/14
2022/10/14
Bojanala Platina (NBR)
Rapid
30
0.60
7
6
5.0
1555.0
1200.0
Analysis
21
ACB Tournament 2022 (A)
2022/10/07
2022/10/08
Ekurhuleni (GE)
Standard
90
0.94
5
5
3.0
1555.0
1545.3
Analysis
20
Ekurhuleni Chess Springs Club Open 2022 (C)
2022/09/03
2022/09/03
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1575.7
1572.2
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
38
17
5
16
19.5
51.3
11.2
1456.1
1467.3
White
20
10
3
7
11.5
57.5
63.7
1429.0
1492.7
Black
18
7
2
9
8.0
44.4
-47.2
1486.2
1439.0
Standard
All
38
17
5
16
19.5
51.3
11.2
1456.1
1467.3
White
20
10
3
7
11.5
57.5
63.7
1429.0
1492.7
Black
18
7
2
9
8.0
44.4
-47.2
1486.2
1439.0
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
210
138
9
63
142.5
67.9
151.8
1330.5
1482.3
White
106
71
5
30
73.5
69.3
164.4
1317.4
1481.8
Black
104
67
4
33
69.0
66.3
138.9
1343.9
1482.8
Standard
All
204
133
9
62
137.5
67.4
147.9
1333.2
1481.1
White
103
68
5
30
70.5
68.4
156.8
1319.7
1476.5
Black
101
65
4
32
67.0
66.3
138.9
1347.0
1485.8
Rapid
All
6
5
0
1
5.0
83.3
283.3
1239.0
1522.4
White
3
3
0
0
3.0
100.0
425.0
1238.9
1663.9
Black
3
2
0
1
2.0
66.7
141.7
1239.2
1380.9
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1110103524
Kotzee, A (Armand)
4
3.0
3
0
1
75.0
1558.4
212.5
1770.9
View list
2
2110151735
Ambrose, I (Isabella)
3
3.0
3
0
0
100.0
1542.1
425.0
1967.1
View list
3
210088032
De Vasconcelos, T (Tiaana)
3
3.0
3
0
0
100.0
1449.0
425.0
1874.0
View list
4
1110118124
Pieterse, JF (Jurgens Francois)
3
3.0
3
0
0
100.0
1356.7
425.0
1781.7
View list
5
1110097360
Pillay, Z (Zac)
3
3.0
3
0
0
100.0
1490.9
425.0
1915.9
View list
6
1100116478
Smith, H (Henre)
3
3.0
3
0
0
100.0
1433.9
425.0
1858.9
View list
7
1110109195
Tema, O (Ofana)
3
1.5
1
1
1
50.0
1522.6
0.0
1522.6
View list
8
1120096779
Yang, JD (Daniel)
3
1.5
1
1
1
50.0
1574.5
0.0
1574.5
View list
9
111009119
Esterhuizen, JL (Janco)
2
2.0
2
0
0
100.0
1531.7
425.0
1956.7
View list
10
1110097689
Froom, J (Jacob)
2
2.0
2
0
0
100.0
1496.1
425.0
1921.1
View list
11
2100107820
Labuschagne, M (Melindie)
2
2.0
2
0
0
100.0
1389.1
425.0
1814.1
View list
12
1110139528
Robinson, E (Ethan)
2
2.0
2
0
0
100.0
1484.8
425.0
1909.8
View list
13
1110103928
Slabbert, ZN (Zander Nicolaas)
2
2.0
2
0
0
100.0
1496.1
425.0
1921.1
View list
14
1090118195
Strydom, L (Leyan)
2
2.0
2
0
0
100.0
1597.8
425.0
2022.8
View list
15
1120108381
Van Der Merwe, M (Marthinus)
2
2.0
2
0
0
100.0
1556.5
425.0
1981.5
View list
16
1110135703
Bain, M (Michael)
2
1.5
1
1
0
75.0
1553.5
212.5
1766.0
View list
17
1110131971
Chipunza, J (Jared)
2
1.0
1
0
1
50.0
1567.0
0.0
1567.0
View list
18
111092701
Deysel, K (Kaleb)
2
1.0
1
0
1
50.0
1542.5
0.0
1542.5
View list
19
1110100045
Gondwe, P (Prosper)
2
1.0
1
0
1
50.0
1493.2
0.0
1493.2
View list
20
2110111566
Hingorani, R (Ridhima)
2
1.0
1
0
1
50.0
1546.8
0.0
1546.8
View list