PLAYER PAGE

Johannes Cornelis Botha

1110136394
Bojanala Platina (NBR)
Personal
Main rating
Rating 1713.1
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 80
Rating Change
()
Games 18
Score 10
We 11.12
SWe -1.13
Temp +/- -31.7
Penalties 0
Weight perform 1646.6
Final +/- -31.7
New Rating
()
Rating 1681.5
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 79.8
Standard rating
Rating 1713.1
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 79.8
Rating Change
()
Games 9
Score 5
We 6.16
SWe -1.16
Temp +/- -32.5
Penalties 0
Weight perform 1681.4
Final +/- -32.5
New Rating
()
Rating 1680.7
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 79.8
Rapid rating
Rating 1382.3
K-factor 36
Floor 882.3
Highest 1382.3 (2025-09-01)
Min/Max +/- allowed 127.9
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1429.9
Final +/- 0
New Rating
()
Rating 1382.3
K-factor 36
Floor 882.3
Highest 1382.3 (2025-09-01)
Min/Max +/- allowed 127.9
Blitz rating
Rating 1318.1
K-factor 36
Floor 818.1
Highest 1318.1 (2025-11-01)
Min/Max +/- allowed 140.1
Rating Change
()
Games 9
Score 5
We 4.52
SWe 0.48
Temp +/- 17.3
Penalties 0
Weight perform 1573.5
Final +/- +140.1
New Rating
()
Rating 1458.2
K-factor 32
Floor 958.2
Highest 1458.2 (2026-04-01)
Min/Max +/- allowed 114.8
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 South African Junior Closed Chess Championship 2026 (U16 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1713.1 9 5 1608.3 -31.8 Details
2 South African Junior Closed Chess Championship 2026 (Blitz) Blitz 2026-03-31 2026-03-31 Bojanala Platina (NBR) 9 1713.1 9 5 1731.8 0.1 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Bojanala's Battle Of Mount Cambridge 2026 (Bishops+Rooks) Standard 2026-03-21 2026-03-21 Bojanala Platina (NBR) 5 1688.6 4 2.5 1685.6 -0.2 Details
2 Bojanala's Grenville Open 2026 (Rooks) Standard 2026-02-21 2026-02-21 Bojanala Platina (NBR) 5 1590.4 5 5 1976.1 37 Details
3 Bojanala Closed Chess Championships 2026 (U16) Classical 2026-02-13 2026-02-15 Bojanala Platina (NBR) 5 1590.4 5 3 1641.6 5.2 Details
4 Bojanala Wildcard Chess Championships 2026 (U20) Standard 2026-01-24 2026-01-24 Bojanala Platina (NBR) 5 1632.3 4 2 1530.5 -8.8 Details
5 2025 Mzansi Individual Championships (U16 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1540.3 6 4 1644.8 14.8 Details
6 2025 Mzansi Inter Provincial Team Championships (U16 Open) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1540.3 6 4 1608.7 8.1 Details
7 Bojanala's Merry ChessMas 2025 (Queens) Standard 2025-11-29 2025-11-29 Bojanala Platina (NBR) 5 1540.3 4 1.5 1820.9 13.8 Details
8 Bojanala's Circuit Championships 4 of 4 2025 (U16) Standard 2025-11-01 2025-11-01 Bojanala Platina (NBR) 5 1550.4 4 2 1477.2 -5.6 Details
9 Bojanala's Kings & Queens 2025 (Blitz) Blitz 2025-10-25 2025-10-25 Bojanala Platina (NBR) 9 1536.6 9 5.5 1819.1 9.5 Details
10 Bojanala's Battle Of Mount Cambridge 2025 (Rooks) Standard 2025-10-11 2025-10-11 Bojanala Platina (NBR) 5 1536.6 5 2.5 1490.8 -3.7 Details
11 2025 Midstream Open Chess Tournament (B) Standard 2025-08-25 2025-08-25 Tshwane (GTP) 5 1549.1 3 0 1141.5 -24.6 Details
12 Bojanala's Clash Of Schools 2025 (Championship Open) Rapid 2025-08-02 2025-08-02 Bojanala Platina (NBR) 5 1549.1 5 4 1676 10 Details
13 South African Open 2025 (U16 Open) Classical 2025-07-03 2025-07-05 Johannesburg Metro (GJM) 5 1525.1 5 3.5 1673 16.6 Details
14 South African Open 2025 (Blitz) Blitz 2025-07-02 2025-07-02 Johannesburg Metro (GJM) 9 1525.1 8 3.5 1544 0.6 Details
15 Knight Riders Youth Day Open 2025 (A) Standard 2025-06-15 2025-06-15 Johannesburg Metro (GJM) 5 1518.5 5 3 1488.3 -3.5 Details
16 Bojanala's Pre-Exam 2025 (Queens) Standard 2025-05-31 2025-05-31 Bojanala Platina (NBR) 5 1518.5 4 2 1609.9 7.1 Details
17 Spartan Bishops Championships Elite 2025 (U16) Standard 2025-05-23 2025-05-25 Frances Baard (NCF) 5 1516.9 5 3 1396.1 -12.4 Details
18 Bojanala's Circuit Championships 2 of 4 2025 (U16) Standard 2025-05-17 2025-05-17 Bojanala Platina (NBR) 5 1516.9 5 3 1561.2 5 Details
19 Moja Chess Extravaganza 2025 (C) Classical 2025-04-26 2025-05-01 Johannesburg Metro (GJM) 9 1516.9 8 4.5 1447.6 -12.8 Details
20 Robday Bergsig Sport Festival 2025 (Juniors) Rapid 2025-05-03 2025-05-03 Bojanala Platina (NBR) 5 1516.9 5 3.5 1465.2 -3.3 Details
21 FIDE in The West 2025 (Open) Standard 2025-04-12 2025-04-12 West Rand (GWR) 5 1528.7 5 2 1557.6 2 Details
22 South African Junior Closed Chess Championships 2025 (U14 Open) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1528.7 9 4 1450.3 -15.6 Details
23 Uni-Mates Chess Fundraiser Tournament 2025 (Rooks) Rapid 2025-03-22 2025-03-22 West Rand (GWR) 7 1520.4 7 6 1643.5 7.7 Details
24 Uni-Mates Chess Fundraiser Tournament 2025 (Blitz) Blitz 2025-03-22 2025-03-22 West Rand (GWR) 7 1520.4 7 5 1605.5 4.3 Details
25 Bojanala's Waterkloof - The Superior One 2025 (Queens) Standard 2025-03-15 2025-03-15 Bojanala Platina (NBR) 5 1520.4 5 0 1288.5 -22.1 Details
26 Bojanala Circuit Championships 1 of 4 2025 (U16) Standard 2025-03-01 2025-03-01 Bojanala Platina (NBR) 5 1520.4 5 4 1676.4 16.1 Details
27 Bojanala's Battle In The Kloof 2025 (Queens) Standard 2025-02-15 2025-02-15 Bojanala Platina (NBR) 5 1575.5 5 1.5 1048.4 -40.3 Details
28 Bojanala Closed Chess Championships 2025 (U14) Classical 2025-01-31 2025-02-02 Bojanala Platina (NBR) 5 1575.5 5 3 1576.3 1 Details
29 Mzansi Interprovincial Youth Chess Championships 2024 (U14 Open Championship) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1567 7 4.5 1622 8.4 Details
30 Bojanala's Merry Chess-Mas 2024 (Rooks) Standard 2024-12-07 2024-12-07 Bojanala Platina (NBR) 5 1567 5 4 1535.1 -2.2 Details
31 Bojanala's Circuit Championships 4 of 4 204 (U16) Standard 2024-10-12 2024-10-12 Bojanala Platina (NBR) 5 1586.5 5 2.5 1450.5 -13.9 Details
32 Bojanala's Battle In The Kloof 2024 (Queens) Standard 2024-09-21 2024-09-21 Bojanala Platina (NBR) 5 1549.5 5 1 1391.3 -16.3 Details
33 Kings Gambit Chess Open 14 Sept 2024 (C) Standard 2024-09-14 2024-09-14 Sedibeng (GSV) 5 1549.5 5 5 1791.1 24.6 Details
34 JCC Khelo India 1st Annual Chess Tournament 2024 (D) Standard 2024-08-31 2024-08-31 Johannesburg Metro (GJM) 5 1549.5 5 4.5 1739.7 18.1 Details
35 Bojanala's FIDE In The Sparkling Waters 2024 (Rooks) Classical 2024-08-16 2024-08-18 Bojanala Platina (NBR) 6 1560 6 4 1461.3 -13.4 Details
36 Bojanala's Kings & Queens Rapid and Doubles 2024 (Open) Rapid 2024-08-10 2024-08-10 Bojanala Platina (NBR) 7 1560 7 5 1665.4 5.9 Details
37 Incognito Invitational 2024 (A) Standard 2024-07-21 2024-07-21 Bojanala Platina (NBR) 5 1627.8 5 1 1282.7 -35.7 Details
38 Bojanala's Clash Of Schools 2024 (U13) Standard 2024-07-20 2024-07-20 Bojanala Platina (NBR) 5 1627.8 5 4 1574.7 -5.6 Details
39 JMC NG Weltevreden Church 2024 Rapid 2024-06-29 2024-06-29 Johannesburg Metro (GJM) 7 1627.8 6 3.5 1496.7 -7.1 Details
40 Bojanala Circuit Championship 2 of 4 2024 (U16) Standard 2024-06-15 2024-06-15 Bojanala Platina (NBR) 5 1682.2 4 1 1181.8 -38.8 Details
41 Bojanala Circuit Championship 1 of 4 2024 (U14) Standard 2024-05-25 2024-05-25 Bojanala Platina (NBR) 5 1566.2 5 5 1813.2 23.7 Details
42 Schoemies' Kwaggarus Chess Getaway 2024 (Senior) Standard 2024-05-18 2024-05-18 Bojanala Platina (NBR) 5 1566.2 5 5 1671.7 10.1 Details
43 Spartan Bishops Chess Championships 2024 (Knights) Standard 2024-05-04 2024-05-05 Bojanala Platina (NBR) 5 1566.2 5 4 1599.1 4.1 Details
44 2024 Milos Ristic Open Chess Tournament (U14) Standard 2024-04-27 2024-04-27 Tshwane (GTP) 5 1398.4 5 4.5 1644.3 24.7 Details
45 Bojanala Olienpark's One For The Ages 2024 (Rooks) Standard 2024-04-20 2024-04-20 Bojanala Platina (NBR) 5 1398.4 5 4 1554.2 14.8 Details
46 Bojanala's Rating Express 2024 (Rooks) Standard 2024-04-06 2024-04-06 Bojanala Platina (NBR) 5 1398.4 5 4 1636.2 23.9 Details
47 Bojanala Silwerrand's Rating Implosion 2024 (Rooks) Standard 2024-03-16 2024-03-16 Bojanala Platina (NBR) 5 1396.8 5 3 1397.9 1 Details
48 Bojanala Closed Chess Championships Finals 2024 (U14) Classical 2024-02-09 2024-02-11 Bojanala Platina (NBR) 5 1351.5 5 3.5 1511.7 18 Details
49 Bojanala Closed Chess Championships Stage 1 2024 (U14) Standard 2024-01-27 2024-01-27 Bojanala Platina (NBR) 5 1292 5 3.5 1503.4 21.6 Details
50 2023 Cross Border Chess Championships Gaborone vs Bojanala Classical 2023-12-14 2023-12-16 Botswana (BOT) 5 1325.8 5 3 1114.2 -23.8 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 36
Wins 20
Draws 5
Losses 11
White 21
Black 15
White wins 9
Black wins 11
Score 22.5
Percent 62.5
Dp 106.2
AOR 1588.6
Performance 1694.8
Game statistics (History)
Games 452
Wins 252
Draws 35
Losses 165
White 232
Black 220
White wins 131
Black wins 121
Score 269.5
Percent 59.6
Dp 81.8
AOR 1399.1
Performance 1480.9
Rankings (Main)
National
Overall 450
Gender 423
Age group 36
Gender/Age 32
Provincial
Overall 39
Gender 35
Age group 1
Gender/Age 1
Regional
Overall 34
Gender 30
Age group 1
Gender/Age 1
Rankings (Standard)
National
Overall 444
Gender 417
Age group 39
Gender/Age 34
Provincial
Overall 40
Gender 36
Age group 1
Gender/Age 1
Regional
Overall 36
Gender 32
Age group 1
Gender/Age 1
Rankings (Rapid)
National
Overall 970
Gender 835
Age group 183
Gender/Age 145
Provincial
Overall 25
Gender 21
Age group 5
Gender/Age 3
Regional
Overall 23
Gender 19
Age group 5
Gender/Age 3
Rankings (Blitz)
National
Overall 255
Gender 243
Age group 16
Gender/Age 15
Provincial
Overall 14
Gender 13
Age group 1
Gender/Age 1
Regional
Overall 12
Gender 11
Age group 1
Gender/Age 1
Performance ( )
Games 9
Score 5
Percent 55.6
Aor 1561.1
Dp 47.2
Prat 1608.3
Performance ()
Games 36
Score 22.5
Percent 62.5
Aor 1588.6
Dp 106.2
Prat 1694.8
Performance (12 months)
Games 123
Score 72
Percent 58.5
Aor 1534.3
Dp 72.6
Prat 1606.9
Performance (History)
Games 452
Score 269.5
Percent 59.6
Aor 1399.1
Dp 81.8
Prat 1480.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Terblanche, J (Johann) 11 7 4 One For The Ages 2022 (U12) Bojanala's Grenville Open 2026 (Rooks) Details
Overall 2 Grobler, R (Rowan) 11 7 4 Bojanala Chess Federation Wildcards 2022 (U12) Bojanala's Grenville Open 2026 (Rooks) Details
Overall 3 Tshetlhe, B (Blessing) 8 3 5 Lebone II 2022 (D) Bojanala Closed Chess Championships 2026 (U16) Details
Overall 4 Bantseke, B (Boikanyo) 7 2 5 RHS Know Thyself 2022 (C) Robday Bergsig Sport Festival 2025 (Juniors) Details
Overall 5 Ramaboa, T (Thando) 7 5 2 Bojanala Chess Federation Clash of Schools 2022 (PS Championship) Bojanala's Circuit Championships 4 of 4 2025 (U16) Details
Standard 1 Terblanche, J (Johann) 11 7 4 One For The Ages 2022 (U12) Bojanala's Grenville Open 2026 (Rooks) Details
Standard 2 Grobler, R (Rowan) 9 6 3 Bojanala Chess Federation Wildcards 2022 (U12) Bojanala's Grenville Open 2026 (Rooks) Details
Standard 3 Tshetlhe, B (Blessing) 8 3 5 Lebone II 2022 (D) Bojanala Closed Chess Championships 2026 (U16) Details
Standard 4 Changara, A (Adrian Tafara) 7 4 3 Nories Make It Happen 2023 (Rooks) Bojanala's Battle Of Mount Cambridge 2026 (Bishops+Rooks) Details
Standard 5 Ramaboa, T (Thando) 7 5 2 Bojanala Chess Federation Clash of Schools 2022 (PS Championship) Bojanala's Circuit Championships 4 of 4 2025 (U16) Details
Rapid 1 Bantseke, B (Boikanyo) 2 0 2 Bojanala School League 2023 (Primary School Open) Robday Bergsig Sport Festival 2025 (Juniors) Details