PLAYER PAGE

Johannes Cornelis Botha

1110136394
Bojanala Platina (NBR)
Personal
Main rating
Rating 1645.3
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 80
Rating Change
()
Games 5
Score 3.5
We 3.18
SWe 0.27
Temp +/- 7.5
Penalties 0
Weight perform 1591
Final +/- +7.5
New Rating
()
Rating 1652.9
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 79.8
Standard rating
Rating 1659.2
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 3.21
SWe 0.29
Temp +/- 8.1
Penalties 0
Weight perform 1665.2
Final +/- +8.1
New Rating
()
Rating 1667.4
K-factor 28
Floor 1213.1
Highest 1713.1 (2026-03-01)
Min/Max +/- allowed 79.8
Rapid rating
Rating 1430.2
K-factor 32
Floor 930.2
Highest 1430.2 (2026-09-01)
Min/Max +/- allowed 119.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1406.9
Final +/- 0
New Rating
()
Rating 1430.2
K-factor 32
Floor 930.2
Highest 1430.2 (2026-09-01)
Min/Max +/- allowed 119.4
Blitz rating
Rating 1573
K-factor 32
Floor 1073
Highest 1573 (2026-10-01)
Min/Max +/- allowed 97.5
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1574.2
Final +/- 0
New Rating
()
Rating 1573
K-factor 32
Floor 1073
Highest 1573 (2026-10-01)
Min/Max +/- allowed 97.5
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 NW Provincial Chess Champioship 2026 (U15 Boys) Standard 2026-10-10 2026-10-10 Ngaka Modiri Molema (NNM) 5 1645.3 5 3.5 1706.5 7.5 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Bojanala's Kings & Queens 2026 (Open) Blitz 2026-09-19 2026-09-19 Bojanala Platina (NBR) 9 1627.1 9 6 1646.7 2 Details
2 2026 Bojanala Closed Circuit Championship 2 of 4 (U16) Standard 2026-09-05 2026-09-05 Bojanala Platina (NBR) 5 1627.1 5 3.5 1738 16.2 Details
3 Bojanala's Clash Of Schools 2026 (Open) Rapid 2026-08-08 2026-08-08 Bojanala Platina (NBR) 5 1627.1 5 2.5 1518.7 -13.8 Details
4 South African Open Championship 2026 (U15 Boys) Classical 2026-07-02 2026-07-05 Cape Town (WCT) 7 1653.1 7 4.5 1593.3 -12.2 Details
5 Bojanala's Die Rooi Masjien 2026 (Bishops) Standard 2026-06-06 2026-06-06 Bojanala Platina (NBR) 5 1630.9 5 4.5 1809.2 25.6 Details
6 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
7 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
8 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
9 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
10 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
11 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
12 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
13 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
14 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
15 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
16 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
17 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
18 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
19 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
20 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
21 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
22 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
23 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
24 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
25 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
26 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
27 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
28 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
29 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
30 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
31 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
32 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
33 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
34 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
35 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
36 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
37 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
38 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
39 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
40 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
41 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
42 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
43 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
44 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
45 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
46 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
47 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
48 Incognito Invitational 2024 (A) Standard 2024-07-21 2024-07-21 Bojanala Platina (NBR) 5 1627.8 5 1 1282.7 -35.7 Details
49 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
50 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
Game statistics ( )
Games 5
Wins 2
Draws 3
Losses 0
White 3
Black 2
White wins 1
Black wins 1
Score 3.5
Percent 70
Dp 170
AOR 1536.5
Performance 1706.5
Game statistics ()
Games 93
Wins 51
Draws 16
Losses 26
White 49
Black 44
White wins 26
Black wins 25
Score 59
Percent 63.4
Dp 114.2
AOR 1527.8
Performance 1642
Game statistics (History)
Games 509
Wins 283
Draws 46
Losses 180
White 260
Black 249
White wins 148
Black wins 135
Score 306
Percent 60.1
Dp 86
AOR 1409.2
Performance 1495.2
Rankings (Main)
National
Overall 823
Gender 772
Age group 85
Gender/Age 76
Provincial
Overall 62
Gender 58
Age group 4
Gender/Age 4
Regional
Overall 49
Gender 46
Age group 3
Gender/Age 3
Rankings (Standard)
National
Overall 693
Gender 650
Age group 78
Gender/Age 69
Provincial
Overall 59
Gender 57
Age group 5
Gender/Age 5
Regional
Overall 47
Gender 46
Age group 4
Gender/Age 4
Rankings (Rapid)
National
Overall 767
Gender 681
Age group 116
Gender/Age 96
Provincial
Overall 23
Gender 23
Age group 6
Gender/Age 6
Regional
Overall 22
Gender 22
Age group 6
Gender/Age 6
Rankings (Blitz)
National
Overall 123
Gender 121
Age group 7
Gender/Age 7
Provincial
Overall 10
Gender 10
Age group 1
Gender/Age 1
Regional
Overall 10
Gender 10
Age group 1
Gender/Age 1
Performance ( )
Games 5
Score 3.5
Percent 70
Aor 1536.5
Dp 170
Prat 1706.5
Performance ()
Games 93
Score 59
Percent 63.4
Aor 1527.8
Dp 114.2
Prat 1642
Performance (12 months)
Games 113
Score 70.5
Percent 62.4
Aor 1535.6
Dp 105.3
Prat 1640.9
Performance (History)
Games 509
Score 306
Percent 60.1
Aor 1409.2
Dp 86
Prat 1495.2
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Terblanche, J (Johann) 13 7 6 One For The Ages 2022 (U12) Bojanala's Circuit Championships 1 of 4 2026 (U16) Details
Overall 2 Grobler, R (Rowan) 11 7 4 Bojanala Chess Federation Wildcards 2022 (U12) Bojanala's Grenville Open 2026 (Rooks) Details
Overall 3 Changara, A (Adiel Tavonga) 10 7 3 Lebone II 2022 (D) 2026 Bojanala Closed Circuit Championship 2 of 4 (U16) Details
Overall 4 Tshetlhe, B (Blessing) 8 3 5 Lebone II 2022 (D) Bojanala Closed Chess Championships 2026 (U16) Details
Overall 5 Changara, A (Adrian Tafara) 8 4 4 Nories Make It Happen 2023 (Rooks) Bojanala's Kings & Queens 2026 (Open) Details
Standard 1 Terblanche, J (Johann) 12 7 5 One For The Ages 2022 (U12) Bojanala's Circuit Championships 1 of 4 2026 (U16) 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 (Adiel Tavonga) 8 6 2 Lebone II 2022 (D) 2026 Bojanala Closed Circuit Championship 2 of 4 (U16) Details
Standard 5 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
Rapid 1 Bantseke, B (Boikanyo) 2 0 2 Bojanala School League 2023 (Primary School Open) Robday Bergsig Sport Festival 2025 (Juniors) Details
Blitz 1 De Jager, L (Luan) 2 2 0 Uni-Mates Chess Fundraiser Tournament 2025 (Blitz) Bojanala's Kings & Queens 2026 (Open) Details
Blitz 2 Sehularo, K (Kganya) 2 0 2 Bojanala's Kings & Queens 2025 (Blitz) South African Junior Closed Chess Championship 2026 (Blitz) Details