PLAYER PAGE

Johannes Cornelis Botha

1110136394
Bojanala Platina (NBR)
Personal
Main rating
Rating 1630.9
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 80
Rating Change
()
Games 5
Score 3.5
We 3.65
SWe -0.12
Temp +/- -3.4
Penalties 0
Weight perform 1532.4
Final +/- -3.4
New Rating
()
Rating 1627.6
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 79.8
Standard rating
Rating 1630.2
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 79.8
Rating Change
()
Games 5
Score 3.5
We 3.56
SWe -0.06
Temp +/- -1.7
Penalties 0
Weight perform 1532.4
Final +/- -1.7
New Rating
()
Rating 1628.4
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 1409.3
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 1458.2
K-factor 32
Floor 958.2
Highest 1458.2 (2026-04-01)
Min/Max +/- allowed 114.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1552
Final +/- 0
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 Bojanala's Circuit Championships 1 of 4 2026 (U16) Standard 2026-05-30 2026-05-30 Bojanala Platina (NBR) 5 1630.9 5 3.5 1589.7 -3.4 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Spartans Bishops 2026 (U16 Bishops) Standard 2026-05-01 2026-05-03 Sarah Baartman (ESB) 5 1633.3 5 4 1629.6 0.9 Details
2 Mpumalanga Open Chess Championship 2026 (A) Standard 2026-04-25 2026-04-26 Nkangala (MNW) 6 1713.1 6 3 1358.8 -52.2 Details
3 Bojanala's Schoemies Open 2026 (Rooks+Queens) Standard 2026-04-18 2026-04-18 Bojanala Platina (NBR) 5 1713.1 5 1.5 1522.2 -28.5 Details
4 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
5 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
6 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
7 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
8 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
9 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
10 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
11 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
12 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
13 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
14 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
15 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
16 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
17 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
18 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
19 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
20 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
21 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
22 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
23 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
24 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
25 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
26 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
27 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
28 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
29 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
30 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
31 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
32 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
33 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
34 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
35 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
36 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
37 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
38 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
39 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
40 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
41 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
42 Incognito Invitational 2024 (A) Standard 2024-07-21 2024-07-21 Bojanala Platina (NBR) 5 1627.8 5 1 1282.7 -35.7 Details
43 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
44 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
45 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
46 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
47 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
48 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
49 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
50 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
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 57
Wins 31
Draws 7
Losses 19
White 32
Black 25
White wins 16
Black wins 15
Score 34.5
Percent 60.5
Dp 89.5
AOR 1539.9
Performance 1629.4
Game statistics (History)
Games 473
Wins 263
Draws 37
Losses 173
White 243
Black 230
White wins 138
Black wins 125
Score 281.5
Percent 59.5
Dp 80.9
AOR 1401.7
Performance 1482.5
Rankings (Main)
National
Overall 869
Gender 805
Age group 82
Gender/Age 71
Provincial
Overall 65
Gender 57
Age group 5
Gender/Age 3
Regional
Overall 55
Gender 48
Age group 4
Gender/Age 2
Rankings (Standard)
National
Overall 800
Gender 741
Age group 82
Gender/Age 71
Provincial
Overall 66
Gender 58
Age group 6
Gender/Age 4
Regional
Overall 56
Gender 49
Age group 5
Gender/Age 3
Rankings (Rapid)
National
Overall 1035
Gender 899
Age group 191
Gender/Age 155
Provincial
Overall 33
Gender 30
Age group 6
Gender/Age 5
Regional
Overall 30
Gender 27
Age group 6
Gender/Age 5
Rankings (Blitz)
National
Overall 171
Gender 167
Age group 8
Gender/Age 8
Provincial
Overall 11
Gender 11
Age group 1
Gender/Age 1
Regional
Overall 10
Gender 10
Age group 1
Gender/Age 1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 57
Score 34.5
Percent 60.5
Aor 1539.9
Dp 89.5
Prat 1629.4
Performance (12 months)
Games 117
Score 68
Percent 58.1
Aor 1549.6
Dp 69
Prat 1618.6
Performance (History)
Games 473
Score 281.5
Percent 59.5
Aor 1401.7
Dp 80.9
Prat 1482.5
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Terblanche, J (Johann) 12 7 5 One For The Ages 2022 (U12) South African Junior Closed Chess Championship 2026 (Blitz) Details
Overall 2 Grobler, R (Rowan) 11 7 4 Bojanala Chess Federation Wildcards 2022 (U12) Bojanala's Grenville Open 2026 (Rooks) Details
Overall 3 Ramaboa, T (Thando) 8 5 3 Bojanala Chess Federation Clash of Schools 2022 (PS Championship) South African Junior Closed Chess Championship 2026 (U16 Open) Details
Overall 4 Tshetlhe, B (Blessing) 8 3 5 Lebone II 2022 (D) Bojanala Closed Chess Championships 2026 (U16) Details
Overall 5 Changara, A (Adiel Tavonga) 7 5 2 Lebone II 2022 (D) South African Junior Closed Chess Championship 2026 (Blitz) 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 Ramaboa, T (Thando) 8 5 3 Bojanala Chess Federation Clash of Schools 2022 (PS Championship) South African Junior Closed Chess Championship 2026 (U16 Open) Details
Standard 4 Tshetlhe, B (Blessing) 8 3 5 Lebone II 2022 (D) Bojanala Closed Chess Championships 2026 (U16) Details
Standard 5 Changara, A (Adrian Tafara) 7 4 3 Nories Make It Happen 2023 (Rooks) Bojanala's Battle Of Mount Cambridge 2026 (Bishops+Rooks) Details
Rapid 1 Bantseke, B (Boikanyo) 2 0 2 Bojanala School League 2023 (Primary School Open) Robday Bergsig Sport Festival 2025 (Juniors) Details
Blitz 1 Sehularo, K (Kganya) 2 0 2 Bojanala's Kings & Queens 2025 (Blitz) South African Junior Closed Chess Championship 2026 (Blitz) Details