Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Justin Rishworth

196032225
Tshwane (GTP)
Personal
Main rating
Rating 1616.2
K-factor 28
Floor 1103.3
Highest 1711.9 (2026-02-01)
Min/Max +/- allowed 80
Rating Change
()
Games 21
Score 13
We 10.02
SWe 2.34
Temp +/- 65.6
Penalties 0
Weight perform 1682
Final +/- +65.8
New Rating
()
Rating 1682
K-factor 28
Floor 1103.3
Highest 1711.9 (2026-02-01)
Min/Max +/- allowed 80
Standard rating
Rating 1605.9
K-factor 28
Floor 1109.3
Highest 1720.9 (2026-02-01)
Min/Max +/- allowed 78.9
Rating Change
()
Games 14
Score 9
We 6.48
SWe 2.52
Temp +/- 70.4
Penalties 0
Weight perform 1688.1
Final +/- +78.9
New Rating
()
Rating 1684.8
K-factor 28
Floor 1109.3
Highest 1720.9 (2026-02-01)
Min/Max +/- allowed 78.9
Rapid rating
Rating 1615.8
K-factor 28
Floor 1121.9
Highest 1633.9 (2023-12-01)
Min/Max +/- allowed 89.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1250.5
Final +/- 0
New Rating
()
Rating 1615.8
K-factor 28
Floor 1121.9
Highest 1633.9 (2023-12-01)
Min/Max +/- allowed 89.4
Blitz rating
Rating 1809.4
K-factor 24
Floor 1371.1
Highest 1871.1 (2024-05-01)
Min/Max +/- allowed 63.7
Rating Change
()
Games 7
Score 4
We 6.03
SWe -2.03
Temp +/- -48.7
Penalties 0
Weight perform 1514.1
Final +/- -48.7
New Rating
()
Rating 1760.7
K-factor 24
Floor 1371.1
Highest 1871.1 (2024-05-01)
Min/Max +/- allowed 63.7
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Chess Elevation Series - July 2026 (Level 5) Standard 2026-07-17 2026-07-18 Cape Town (WCT) 5 1616.2 5 4 1846.7 34.2 Details
2 2026 PECC Fast & Furious Blitz II Blitz 2026-05-28 2026-05-28 Nelson Mandela Bay (ENM) 7 1616.2 7 4 1689 2.8 Details
3 South African Open Championship 2026 (Advanced) Classical 2026-06-28 2026-07-05 Cape Town (WCT) 9 1616.2 9 5 1717.1 28.6 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Fountains Mall Open 2026 (Open) Standard 2026-05-16 2026-05-17 Sarah Baartman (ESB) 5 1652 5 3.5 1628.8 -4.4 Details
2 Moja Chess Extravaganza 2026 (B) Classical 2026-04-25 2026-04-30 Cape Town (WCT) 9 1652 9 3 1550.5 -31.4 Details
3 FIDE in the West 2026 (Open) Standard 2026-04-11 2026-04-11 West Rand (GWR) 5 1674.3 5 2.5 1510.6 -22.2 Details
4 2026 Lubowski Open Chess Tournament (B) Standard 2026-03-21 2026-03-22 Tshwane (GTP) 5 1665.8 5 3 1678.2 3.1 Details
5 2026 Chris Greyling Open Tournament (B) Standard 2026-03-14 2026-03-14 Tshwane (GTP) 5 1665.8 5 4 1798.6 19.3 Details
6 2026 Silver Lakes Open Chess Tournament (A) Standard 2026-03-07 2026-03-07 Tshwane (GTP) 5 1665.8 5 2 1715.4 5.6 Details
7 2026 Blou Bull Chess Tournament (A) Standard 2026-02-21 2026-02-21 Tshwane (GTP) 5 1665.8 4 1 1490.2 -19.2 Details
8 2026 AHS Chess Tournament (A) Standard 2026-02-28 2026-02-28 Tshwane (GTP) 5 1665.8 5 1.5 1510.7 -20.3 Details
9 SAJCCC ENM Players Fundraiser February 2026 (A) Standard 2026-02-14 2026-02-14 Nelson Mandela Bay (ENM) 5 1711.8 5 2 1568.8 -14.6 Details
10 Fide in the Bay 2026 (A) Standard 2026-01-24 2026-01-24 Nelson Mandela Bay (ENM) 5 1632.7 5 2.5 1702.8 2.9 Details
11 Centurion Chess Club Year End Blitz 2025 Blitz 2025-12-03 2025-12-03 Tshwane (GTP) 9 1523.7 9 5.5 1628.5 3.9 Details
12 Gauteng Inter-Region at Emerald Resort 2025 (Adults+Seniors) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1523.7 5 3.5 2032.7 45.9 Details
13 Bojanala's Merry ChessMas 2025 (Rooks) Standard 2025-11-29 2025-11-29 Bojanala Platina (NBR) 5 1523.7 5 3.5 1737.1 21.4 Details
14 2025 Laerskool Doringkloof Primary Open Chess Tournament (B) Standard 2025-10-25 2025-10-25 Tshwane (GTP) 5 1528.4 5 2.5 1560.5 2.3 Details
15 2025 Centurion Chess Open Tournament (B) Standard 2025-09-27 2025-09-27 Tshwane (GTP) 5 1531.2 5 2.5 1476.5 -4.6 Details
16 Tshwane Chess Club Clash 2025 (Prestige) Standard 2025-09-13 2025-09-13 Tshwane (GTP) 5 1531.2 5 1 1543.4 -1.8 Details
17 2025 Alekhine Open (B) Standard 2025-09-06 2025-09-07 Tshwane (GTP) 5 1531.2 5 1.5 1326.4 -21.8 Details
18 2025 Menlo Open (A) Standard 2025-07-26 2025-07-26 Tshwane (GTP) 5 1546.9 4 0.5 1338.2 -16.4 Details
19 2025 Wynie Robbertse Chess Tournament (B) Standard 2025-07-19 2025-07-19 Tshwane (GTP) 5 1546.9 5 3 1676.2 13.3 Details
20 South African Open 2025 (B) Classical 2025-06-28 2025-07-05 Johannesburg Metro (GJM) 11 1546.9 11 5.5 1502.5 -10.6 Details
21 South African Open 2025 (Blitz) Blitz 2025-07-02 2025-07-02 Johannesburg Metro (GJM) 9 1546.9 8 3 1506.5 -1.4 Details
22 2025 Jacaranda Round Robin Open Chess Tournament (C) Standard 2025-06-21 2025-06-21 Tshwane (GTP) 5 1524.4 5 3.5 1696.3 16.1 Details
23 NMBCU Closed 2025 (U20+Open) Standard 2025-06-13 2025-06-14 Nelson Mandela Bay (ENM) 6 1524.4 5 3 1540.4 0 Details
24 NMBCU Trial 4 2025 (U20+Open) Standard 2025-05-09 2025-05-10 Nelson Mandela Bay (ENM) 6 1574.7 6 4 1452.7 -13.9 Details
25 Moja Chess Extravaganza 2025 (C) Classical 2025-04-26 2025-05-01 Johannesburg Metro (GJM) 9 1574.7 8 3.5 1350.2 -42 Details
26 Moja Chess Extravaganza 2025 (Blitz) Blitz 2025-04-26 2025-04-26 Johannesburg Metro (GJM) 7 1574.7 7 3 1688.1 1.6 Details
27 2025 Silver Lakes Chess Club Open Chess Tournament (B) Standard 2025-05-03 2025-05-03 Tshwane (GTP) 5 1574.7 5 2 1438.2 -13.9 Details
28 Mpumalanga Open Chess Championship 2025 (A) Standard 2025-04-19 2025-04-19 Ehlanzeni (MEN) 5 1582.2 5 2.5 1583.9 0.9 Details
29 2025 Mid Gauteng Open Chess Tournament (B) Standard 2025-04-12 2025-04-12 Tshwane (GTP) 5 1582.2 5 2.5 1510.6 -6.3 Details
30 NMB 2nd Trials 2025 (U20+Adults) Standard 2025-03-07 2025-03-08 Nelson Mandela Bay (ENM) 6 1602.5 5 2.5 1442.2 -14.4 Details
31 NMBCH Trial 1 2025 (U20+Open) Standard 2025-02-14 2025-02-15 Nelson Mandela Bay (ENM) 5 1531.6 5 2.5 1561.4 3.3 Details
32 Pearson High Chess Festival 2025 (A) Standard 2025-02-21 2025-02-22 Nelson Mandela Bay (ENM) 5 1531.6 4 1.5 1629.5 7.1 Details
33 SBDCU Fundraiser 2025 (Open) Standard 2025-02-01 2025-02-01 Sarah Baartman (ESB) 5 1531.6 5 3 1769.4 22.7 Details
34 NMBCU vs BCC Derby Chess Invitational 2025 (Open A) Standard 2025-01-10 2025-01-11 Nelson Mandela Bay (ENM) 5 1505.2 5 4.5 1697.5 18.8 Details
35 NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A) Blitz 2025-01-12 2025-01-12 Nelson Mandela Bay (ENM) 9 1505.2 9 6 1563.6 2.4 Details
36 SBD Activation Tournament 2025 (Open) Rapid 2025-01-04 2025-01-04 Sarah Baartman (ESB) 5 1505.2 5 3 1426.8 -4.7 Details
37 Jeffreys Bay CC Senior vs Aston Bay CC 2024 Rapid 2024-10-19 2024-10-19 Sarah Baartman (ESB) 7 1489.6 7 5.5 1623.7 9.8 Details
38 Mossel Bay Open 2024 (A) Standard 2024-09-21 2024-09-22 Eden (WEG) 6 1478 6 2.5 1440.6 -5.3 Details
39 2024 UCC Mind Over Board (A) Classical 2024-08-30 2024-09-01 Nelson Mandela Bay (ENM) 5 1478 5 3 1588.7 9.2 Details
40 NMBCU Trial 5 2024 (U20+Open) Standard 2024-08-16 2024-08-17 Nelson Mandela Bay (ENM) 6 1459.1 6 5 1556.7 11.8 Details
41 Karen Ashworth 2024 (A) Standard 2024-07-19 2024-07-20 Nelson Mandela Bay (ENM) 6 1558.6 6 3.5 1530.7 -3.2 Details
42 South African Open Chess Championship 2024 (B) Classical 2024-06-29 2024-07-07 Ethekwini (KED) 11 1558.6 11 4.5 1330.3 -59.6 Details
43 Jeffreys Bay Chess Club Challenge 2024 (Open) Rapid 2024-06-18 2024-06-18 Sarah Baartman (ESB) 6 1555.4 6 4 1596.8 2 Details
44 Jeffreys Bay CC Rapid Tournament 2024 Rapid 2024-06-13 2024-06-13 Sarah Baartman (ESB) 5 1555.4 5 4 1543.3 0 Details
45 Fountains Mall 2024 (Open) Standard 2024-05-17 2024-05-18 Sarah Baartman (ESB) 6 1539.1 5 2.5 1575.8 2.9 Details
46 NMBCU Trial 3 2024 (U20+Open) Standard 2024-05-10 2024-05-11 Nelson Mandela Bay (ENM) 6 1539.1 6 4 1475 -7.1 Details
47 NMBCU Trials 2 2024 (U20+Open) Standard 2024-04-12 2024-04-13 Nelson Mandela Bay (ENM) 6 1483.2 4 3.5 1775.6 22.9 Details
48 UCC Strategic Moves 2024 (A) Standard 2024-03-08 2024-03-09 Nelson Mandela Bay (ENM) 5 1477.5 5 3 1521.1 3.6 Details
49 2024 Tshwane Chess AHS Open Chess Tournament (A) Standard 2024-02-24 2024-02-24 Tshwane (GTP) 5 1510.5 5 1.5 1489.6 -1.5 Details
50 2024 Piet Robbertse Open Chess Tournament (A) Standard 2024-02-03 2024-02-04 Tshwane (GTP) 5 1510.5 4 1 1492.7 -0.2 Details
Game statistics ( )
Games 5
Wins 4
Draws 0
Losses 1
White 2
Black 3
White wins 2
Black wins 2
Score 4
Percent 80
Dp 255
AOR 1591.7
Performance 1846.7
Game statistics ()
Games 74
Wins 30
Draws 16
Losses 28
White 39
Black 35
White wins 16
Black wins 14
Score 38
Percent 51.4
Dp 11.5
AOR 1637.1
Performance 1648.6
Game statistics (History)
Games 520
Wins 264
Draws 71
Losses 185
White 264
Black 256
White wins 138
Black wins 126
Score 299.5
Percent 57.6
Dp 64.6
AOR 1472.4
Performance 1537
Rankings (Main)
National
Overall 969
Gender 894
Age group 465
Gender/Age 443
Provincial
Overall 347
Gender 316
Age group 167
Gender/Age 159
Regional
Overall 129
Gender 121
Age group 68
Gender/Age 66
Rankings (Standard)
National
Overall 944
Gender 865
Age group 421
Gender/Age 401
Provincial
Overall 343
Gender 311
Age group 155
Gender/Age 148
Regional
Overall 129
Gender 119
Age group 63
Gender/Age 61
Rankings (Rapid)
National
Overall 149
Gender 146
Age group 75
Gender/Age 75
Provincial
Overall 37
Gender 35
Age group 21
Gender/Age 21
Regional
Overall 7
Gender 7
Age group 4
Gender/Age 4
Rankings (Blitz)
National
Overall 55
Gender 54
Age group 39
Gender/Age 38
Provincial
Overall 21
Gender 21
Age group 14
Gender/Age 14
Regional
Overall 9
Gender 9
Age group 6
Gender/Age 6
Performance ( )
Games 14
Score 9
Percent 64.3
Aor 1642
Dp 121.4
Prat 1763.4
Performance ()
Games 74
Score 38
Percent 51.4
Aor 1637.1
Dp 11.5
Prat 1648.6
Performance (12 months)
Games 113
Score 58
Percent 51.3
Aor 1626.2
Dp 11.3
Prat 1637.5
Performance (History)
Games 520
Score 299.5
Percent 57.6
Aor 1472.4
Dp 64.6
Prat 1537
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Krieger, BCJ (Brian) 12 2 10 Jeffreys Bay Chess Club Blitz 21 November 2022 SBD Activation Tournament 2025 (Open) Details
Overall 2 Freeman, V (Vianco) 9 5 4 Nelson Mandela University Open Rapid Tournament 2018 Fide in the Bay 2026 (A) Details
Overall 3 Sibengile, Z (Zolani) 7 4 3 Kouga Mayarol Cup 2022 (Open) Fountains Mall 2024 (Open) Details
Overall 4 Salie, R (Riaz) 7 5 2 Jefreys Bay Chess Club Rapid 10 November 2022 Jeffreys Bay Chess Club Challenge 2024 (Open) Details
Overall 5 Lagardien, I (Ismaeel) 7 4 3 Ultimate Chess Open 2018 (A) SAJCCC ENM Players Fundraiser February 2026 (A) Details
Standard 1 Lagardien, I (Ismaeel) 7 4 3 Ultimate Chess Open 2018 (A) SAJCCC ENM Players Fundraiser February 2026 (A) Details
Standard 2 Freeman, V (Vianco) 6 4 2 2020 NMBCU Chess Trial 1 (U20+Open) Fide in the Bay 2026 (A) Details
Standard 3 Sibengile, Z (Zolani) 6 4 2 Kouga Mayarol Cup 2022 (Open) Fountains Mall 2024 (Open) Details
Standard 4 Moos, X (Xavier) 4 1 3 Kouga Mayarol Cup 2022 (Open) SBDCU Fundraiser 2025 (Open) Details
Standard 5 Nevin, TW (Tyler William) 4 3 1 Ultimate Chess Open 2018 (A) Fountains Mall Open 2026 (Open) Details
Rapid 1 Krieger, BCJ (Brian) 10 1 9 Jeffreys Bay Chess Club Rapid 24 November 2022 SBD Activation Tournament 2025 (Open) Details
Rapid 2 Persent, G (Gavin) 6 3 3 Jeffreys Bay Chess Club Rapid 17 November 2022 Jeffreys Bay CC Senior vs Aston Bay CC 2024 Details
Rapid 3 Stuurman, P (Pedro) 6 3 3 Jeffreys Bay Chess Club Rapid 17 November 2022 Jeffreys Bay CC December Rapid 1 2023 Details
Rapid 4 Salie, R (Riaz) 6 4 2 Jefreys Bay Chess Club Rapid 10 November 2022 Jeffreys Bay Chess Club Challenge 2024 (Open) Details
Rapid 5 Stuurman, C (Caydee) 5 4 1 Jefreys Bay Chess Club Rapid 10 November 2022 Jeffreys Bay CC Dec Rapid 2 2023 Details
Blitz 1 Malgas, GL (Glenwell Lesley) 2 0 2 PECC King Cars Grand Prix Second Leg 2019 Ulitmate Chess Open 2019 (Blitz A) Details