PLAYER PAGE

Cathri Amari Botha

2110130015
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1446.4
K-factor 32
Floor 1029.1
Highest 1529.1 (2024-10-01)
Min/Max +/- allowed 104
Rating Change
()
Games 5
Score 3
We 3.36
SWe -0.3
Temp +/- -9.6
Penalties 0
Weight perform 1312.1
Final +/- -9.6
New Rating
()
Rating 1436.8
K-factor 32
Floor 1029.1
Highest 1529.1 (2024-10-01)
Min/Max +/- allowed 103.8
Standard rating
Rating 1489.6
K-factor 32
Floor 1033.2
Highest 1535.6 (2026-02-28)
Min/Max +/- allowed 102.8
Rating Change
()
Games 5
Score 3
We 3.62
SWe -0.62
Temp +/- -19.8
Penalties 0
Weight perform 1414.3
Final +/- -19.8
New Rating
()
Rating 1469.9
K-factor 32
Floor 1033.2
Highest 1535.6 (2026-02-28)
Min/Max +/- allowed 102.8
Rapid rating
Rating 1305.3
K-factor 36
Floor 852.3
Highest 1632.2 (2022-10-01)
Min/Max +/- allowed 89.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1305.3
K-factor 36
Floor 852.3
Highest 1632.2 (2022-10-01)
Min/Max +/- allowed 89.6
Blitz rating
Rating 1195.1
K-factor 36
Floor 745.4
Highest 1245.4 (2025-05-05)
Min/Max +/- allowed 155.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1195.1
K-factor 36
Floor 745.4
Highest 1245.4 (2025-05-05)
Min/Max +/- allowed 155.4
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 JMC Helpmekaar 2026 (B) Standard 2026-05-31 2026-05-31 Johannesburg Metro (GJM) 5 1446.4 5 3 1376.5 -9.6 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 JMC Crawford Sandton Rapid 2026 (Open) Rapid 2026-05-09 2026-05-09 Johannesburg Metro (GJM) 5 1481.2 5 2 1166.1 -34.7 Details
2 2026 Silver Lakes Open Chess Tournament (B) Standard 2026-03-07 2026-03-07 Tshwane (GTP) 5 1517.1 5 1 1294.3 -36 Details
3 Grey College Team Championship 2026 (B) Standard 2026-02-20 2026-02-21 Mangaung (FMB) 5 1452.5 5 5 1712.2 25.2 Details
4 JCC ChessPowerHouse Feb Rapid 2026 (B) Rapid 2026-02-15 2026-02-15 Johannesburg Metro (GJM) 5 1452.5 5 3 1430.8 -1.7 Details
5 Ekurhuleni 1st Standard Tournament 2026 (C) Standard 2026-02-14 2026-02-14 Ekurhuleni (GE) 5 1452.5 4 2 1465.6 1 Details
6 EG Janesn Open 2026 (U15) Standard 2026-02-07 2026-02-07 Ekurhuleni (GE) 5 1452.5 5 3 1533.8 4.9 Details
7 Gauteng Inter-Region at Emerald Resort 2025 (U16 Championship) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1459.1 5 2.5 1423.2 -4.7 Details
8 Goue Liga Blitz 2025 Blitz 2025-10-25 2025-10-25 Johannesburg Metro (GJM) 9 1465.5 8 2 1131.5 -16.1 Details
9 World Youth Championships 2025 Classical 2025-10-04 2025-10-15 FIDE (FID) 11 1465.5 11 3 1432.8 -10 Details
10 Laerskool Eligwa Open 20 Sept 2025 (C) Standard 2025-09-20 2025-09-20 Sedibeng (GSV) 5 1475.2 5 3 1489.9 0.8 Details
11 Sedibeng Chess Open 06 Sept 2025 (B) Standard 2025-09-06 2025-09-06 Sedibeng (GSV) 5 1475.2 4 1 1324.6 -11.8 Details
12 JMC Closed 2025 (U16) Standard 2025-08-09 2025-08-10 Johannesburg Metro (GJM) 5 1464.3 5 3.5 1531.6 6.8 Details
13 JMC Helpmekaar 2025 (B) Standard 2025-06-01 2025-06-01 Johannesburg Metro (GJM) 5 1483.1 5 0.5 1145.5 -32.2 Details
14 JMC Crawford Sandton 2025 (B) Standard 2025-05-10 2025-05-10 Johannesburg Metro (GJM) 5 1521 5 2 1300.1 -20.7 Details
15 2025 Silver Lakes Chess Club Open Chess Tournament (C) Standard 2025-05-03 2025-05-03 Tshwane (GTP) 5 1521 5 3 1496.9 -3 Details
16 FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Blitz) Blitz 2025-04-16 2025-04-17 Geece (GRE) 11 1454.1 11 2 1433.1 -2 Details
17 FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Rapid) Rapid 2025-04-13 2025-04-15 Greece (GRE) 11 1454.1 11 2 1463.1 -1.6 Details
18 South African Junior Closed Chess Championships 2025 (U14 Girls) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1454.1 9 6 1673 45.4 Details
19 JMC Crawford Ruimsig 2025 (B) Standard 2025-03-01 2025-03-01 Johannesburg Metro (GJM) 5 1456.8 4 0.5 1060 -30.9 Details
20 Grey College Team Championship 2025 (A) Standard 2025-02-21 2025-02-22 Mangaung (FMB) 5 1462.7 5 3 1327.1 -13.9 Details
21 MCA Welcome 2025 (Advanced) Standard 2025-02-15 2025-02-15 Johannesburg Metro (GJM) 5 1462.7 5 2.5 1486.6 1.7 Details
22 Gauteng Inter-Region at UJ 2024 (U14 Girls) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1501.2 4 1.5 1246.3 -24 Details
23 Gauteng Top Schools 2024 (U13 Open) Standard 2024-10-04 2024-10-04 Ekurhuleni (GE) 5 1529.1 5 2.5 1341.3 -17.4 Details
24 Ekurhuleni North Schools Finals - Teams 2024 (U13 Open) Standard 2024-08-03 2024-08-03 Ekurhuleni (GE) 5 1477.6 5 5 1677.7 20.6 Details
25 Ekurhuleni Trails 3 2024 (U14) Standard 2024-08-24 2024-08-24 Ekurhuleni (GE) 5 1477.6 5 3 1486.2 0.2 Details
26 Gauteng Schools Individuals Finals 2024 (U13 Girls) Standard 2024-08-16 2024-08-16 Ekurhuleni (GE) 5 1477.6 5 4 1602.7 11.5 Details
27 Ekurhuleni Trails 2 2024 (U14) Standard 2024-07-27 2024-07-27 Ekurhuleni (GE) 5 1485 3 2 1392 -4.6 Details
28 AG Visser Open 2024 (C) Standard 2024-06-08 2024-06-08 Sedibeng (GSV) 5 1296.9 5 3 1437.3 14.4 Details
29 Ekurhuleni Trails 1 2024 (U14) Standard 2024-06-01 2024-06-01 Ekurhuleni (GE) 5 1296.9 5 4 1578.3 27.2 Details
30 Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Girls) Standard 2024-05-11 2024-05-11 Ekurhuleni (GE) 5 1296.9 5 5 1749.6 44.8 Details
31 South African Junior Closed Chess Championship 2024 (U14 Girls) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1357.4 9 2 1181.8 -37.8 Details
32 Westwood Open 2024 (A) Standard 2024-04-13 2024-04-13 Ekurhuleni (GE) 5 1368.3 4 2.5 1465.2 7.6 Details
33 Ekurhuleni Open 2024 (B) Standard 2024-04-06 2024-04-06 Ekurhuleni (GE) 5 1368.3 5 2 1214.3 -14.4 Details
34 JNW Open - Classic - Crawford 2024 (B) Standard 2024-03-09 2024-03-09 Johannesburg Metro (GJM) 5 1383.7 5 2 1292 -9.6 Details
35 2024 Constantiapark Open (B) Standard 2024-02-17 2024-02-17 Tshwane (GTP) 5 1432.3 5 0 1114.2 -30.5 Details
36 2024 Gauteng Inter-Region Chess Championship (U14 Girls) Standard 2024-01-13 2024-01-14 Tshwane (GTP) 5 1495.6 4 1 1165.8 -28.9 Details
37 JMC Kick Off Tournament 2024 (C) Standard 2024-01-28 2024-01-28 Johannesburg Metro (GJM) 5 1495.6 5 2.5 1376.7 -10.6 Details
38 2023 Gauteng Top Schools (U13 Mixed) Standard 2023-08-18 2023-08-18 West Rand (GWR) 5 1504.6 5 3 1439.5 -5.5 Details
39 2023 Ekurhuleni North District Schools Finals (U13) Standard 2023-07-29 2023-07-29 Ekurhuleni (GE) 5 1442.1 5 5 1656.6 21.9 Details
40 Gauteng Open Arnold Classic 2023 (C) Standard 2023-05-20 2023-05-20 Tshwane (GTP) 5 1378.8 5 2.5 1237.2 -14.4 Details
41 Gauteng Schools Individual Finals 2023 (U13 Girls) Standard 2023-05-26 2023-05-26 Ekurhuleni (GE) 5 1378.8 5 4 1545.8 17.1 Details
42 Ekurhuleni North Schools Individual Finals 2023 (U13 Girls) Standard 2023-05-12 2023-05-12 Ekurhuleni (GE) 5 1378.8 5 5 1660.8 27.1 Details
43 Ekurhuleni Trials 2 2023 (U14) Standard 2023-04-22 2023-04-22 Ekurhuleni (GE) 5 1486.9 5 4 1455.4 -2.2 Details
44 Alberton Chess Club Tournament 1 2023 (B) Standard 2023-04-15 2023-04-15 Ekurhuleni (GE) 5 1486.9 5 2 1190 -29.4 Details
45 2023 South African Junior Closed Chess Championships (U12 Girls) Classical 2023-03-31 2023-04-04 Chess South Africa (CSA) 9 1486.9 9 4.5 1310.8 -36 Details
46 Ekhuruleni Chess Trials 1 2023 (U14) Standard 2023-03-25 2023-03-25 Ekurhuleni (GE) 5 1488 5 4 1472.5 -0.5 Details
47 2022 South African Junior Team Chess Championships (U10+U12 Girls) Classical 2022-12-04 2022-12-07 4 Knights (4K) 5 1449 5 5 1663.2 24.6 Details
48 Super 8 Skaak 2022 (Seniors) Rapid 2022-10-14 2022-10-14 Bojanala Platina (NBR) 7 1467.2 6 6 1621 13.4 Details
49 ACB Tournament 2022 (A) Standard 2022-10-07 2022-10-08 Ekurhuleni (GE) 5 1467.2 5 2 1248.1 -24.8 Details
50 Ekurhuleni Chess Springs Club Open 2022 (D) Standard 2022-09-03 2022-09-03 Ekurhuleni (GE) 5 1496.4 5 3 1314 -18.3 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 34
Wins 19
Draws 0
Losses 15
White 18
Black 16
White wins 11
Black wins 8
Score 19
Percent 55.9
Dp 50
AOR 1374.4
Performance 1424.4
Game statistics (History)
Games 380
Wins 205
Draws 20
Losses 155
White 190
Black 190
White wins 104
Black wins 101
Score 215
Percent 56.6
Dp 55.9
AOR 1345.7
Performance 1401.6
Rankings (Main)
National
Overall 2751
Gender 383
Age group 347
Gender/Age 68
Provincial
Overall 938
Gender 136
Age group 114
Gender/Age 24
Regional
Overall 305
Gender 38
Age group 32
Gender/Age 7
Rankings (Standard)
National
Overall 1929
Gender 260
Age group 224
Gender/Age 46
Provincial
Overall 689
Gender 95
Age group 72
Gender/Age 18
Regional
Overall 230
Gender 28
Age group 24
Gender/Age 7
Rankings (Rapid)
National
Overall 1975
Gender 329
Age group 380
Gender/Age 83
Provincial
Overall 383
Gender 61
Age group 65
Gender/Age 20
Regional
Overall 152
Gender 16
Age group 17
Gender/Age 5
Rankings (Blitz)
National
Overall 536
Gender 53
Age group 56
Gender/Age 10
Provincial
Overall 192
Gender 26
Age group 16
Gender/Age 4
Regional
Overall 102
Gender 13
Age group 6
Gender/Age 3
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 34
Score 19
Percent 55.9
Aor 1374.4
Dp 50
Prat 1424.4
Performance (12 months)
Games 72
Score 34
Percent 47.2
Aor 1423.1
Dp -23.6
Prat 1399.5
Performance (History)
Games 380
Score 215
Percent 56.6
Aor 1345.7
Dp 55.9
Prat 1401.6
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Botha, JCC (Johannes Christiaan Corneli) 4 2 2 2024 Constantiapark Open (B) Ekurhuleni 1st Standard Tournament 2026 (C) Details
Overall 2 Williams, A (Anika) 4 1 3 South African Junior Closed Chess Championships 2022 (U12 Girls) Ekurhuleni 1st Standard Tournament 2026 (C) Details
Overall 3 Horn, E (Erin) 4 1 3 Ekurhuleni Chess Open 2022 (D) Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Girls) Details
Overall 4 Jacobs, L (Lillith) 3 2 1 Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Girls) Ekurhuleni Trails 3 2024 (U14) Details
Overall 5 Bothma, J (Jaculene) 3 0 3 Ekurhuleni North Schools Individual 2021 (D) Ekhuruleni Chess Trials 1 2023 (U14) Details
Standard 1 Williams, A (Anika) 4 1 3 South African Junior Closed Chess Championships 2022 (U12 Girls) Ekurhuleni 1st Standard Tournament 2026 (C) Details
Standard 2 Horn, E (Erin) 4 1 3 Ekurhuleni Chess Open 2022 (D) Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Girls) Details
Standard 3 Botha, JCC (Johannes Christiaan Corneli) 4 2 2 2024 Constantiapark Open (B) Ekurhuleni 1st Standard Tournament 2026 (C) Details
Standard 4 Kriel, D (Darius Kidon) 3 1 2 Ekhuruleni Chess Trials 1 2023 (U14) 2023 Ekurhuleni North District Schools Finals (U13) Details
Standard 5 Maharaj, A (Arya) 3 2 1 Gauteng Schools Individual Finals 2023 (U13 Girls) South African Junior Closed Chess Championship 2024 (U14 Girls) Details