PLAYER PAGE
Johrne Rossouw
108086187Mangaung (FMB)Personal
Main rating
| Rating | 1786.1 |
| K-factor | 28 |
| Floor | 1293.1 |
| Highest | 1793.1 (2026-08-01) |
| Min/Max +/- allowed | 71 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 3.56 |
| SWe | -0.47 |
| Temp +/- | -13.2 |
| Penalties | 0 |
| Weight perform | 1675 |
| Final +/- | -13.2 |
| New Rating () | |
| Rating | 1772.9 |
| K-factor | 28 |
| Floor | 1293.1 |
| Highest | 1793.1 (2026-08-01) |
| Min/Max +/- allowed | 71.2 |
Standard rating
| Rating | 1793.5 |
| K-factor | 28 |
| Floor | 1293.5 |
| Highest | 1793.5 (2026-08-01) |
| Min/Max +/- allowed | 71.2 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 3.62 |
| SWe | -0.62 |
| Temp +/- | -17.3 |
| Penalties | 0 |
| Weight perform | 1765.8 |
| Final +/- | -17.3 |
| New Rating () | |
| Rating | 1776.2 |
| K-factor | 28 |
| Floor | 1293.5 |
| Highest | 1793.5 (2026-08-01) |
| Min/Max +/- allowed | 71.2 |
Rapid rating
| Rating | 1550.9 |
| K-factor | 32 |
| Floor | 1062.3 |
| Highest | 1564.3 (2024-03-01) |
| Min/Max +/- allowed | 98.7 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1391.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1550.9 |
| K-factor | 32 |
| Floor | 1062.3 |
| Highest | 1564.3 (2024-03-01) |
| Min/Max +/- allowed | 98.7 |
Blitz rating
| Rating | 1205.3 |
| K-factor | 36 |
| Floor | 705.3 |
| Highest | 1205.3 (2025-08-01) |
| Min/Max +/- allowed | 164.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1073 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1205.3 |
| K-factor | 36 |
| Floor | 705.3 |
| Highest | 1205.3 (2025-08-01) |
| Min/Max +/- allowed | 164.6 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 12th Piet van Zyl Chess Festival 2026 (A) | Standard | 2026-10-09 | 2026-10-10 | Mangaung (FMB) | 5 | 1786.1 | 5 | 3 | 1695.9 | -13.2 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Bloemfontein Highschools Chess Teams 2026 (Grade 11-12) | Rapid | 2026-08-15 | 2026-08-15 | Mangaung (FMB) | 4 | 1786.1 | 4 | 3 | 1511.7 | -7 | Details |
| 2 | Free State Closed 2026 (Open) | Standard | 2026-07-25 | 2026-07-25 | Mangaung (FMB) | 5 | 1713.3 | 5 | 5 | 2070.9 | 48 | Details |
| 3 | Inter Regional Chess Championship 2026 (Individual U20) | Standard | 2026-05-22 | 2026-05-23 | Mangaung (FMB) | 5 | 1704.3 | 5 | 4.5 | 1759.4 | 9 | Details |
| 4 | Mangaung Metro Chess 10-11 April 2026 (A) | Standard | 2026-04-10 | 2026-04-11 | Mangaung (FMB) | 5 | 1672.8 | 5 | 3 | 1745.5 | 11 | Details |
| 5 | South African Junior Closed Chess Championship 2026 (U18 Open) | Classical | 2026-03-28 | 2026-04-02 | Bojanala Platina (NBR) | 9 | 1672.8 | 9 | 4.5 | 1738.5 | 20.4 | Details |
| 6 | Grey College Team Championship 2026 (A) | Standard | 2026-02-20 | 2026-02-21 | Mangaung (FMB) | 5 | 1724.4 | 5 | 4 | 1676.1 | -3.7 | Details |
| 7 | Mangaung Metro Chess 6-7 February 2026 (A) | Standard | 2026-02-06 | 2026-02-07 | Mangaung (FMB) | 5 | 1724.4 | 5 | 2.5 | 1543.9 | -18.1 | Details |
| 8 | 2025 Mzansi Individual Championships (U18 Open) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1620.6 | 6 | 4.5 | 1806.6 | 26.2 | Details |
| 9 | 2025 Mzansi Inter Provincial Team Championships (U18 Open) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1620.6 | 6 | 4 | 1836.5 | 25.2 | Details |
| 10 | Morris Club Championship 2025 | Rapid | 2025-12-06 | 2025-12-06 | Mangaung (FMB) | 5 | 1620.6 | 5 | 5 | 1704.4 | 7.4 | Details |
| 11 | 11th Piet van Zyl Chess Festival 2025 (A) | Standard | 2025-10-10 | 2025-10-11 | Mangaung (FMB) | 5 | 1604.1 | 5 | 3.5 | 1729.9 | 11.9 | Details |
| 12 | Free State Closed 2025 (U18 Open) | Standard | 2025-08-14 | 2025-08-15 | Mangaung (FMB) | 5 | 1571.1 | 5 | 4.5 | 1749.4 | 20.6 | Details |
| 13 | Smart Chess Blitz 2025 (Open) | Blitz | 2025-07-19 | 2025-07-19 | Mangaung (FMB) | 9 | 1574 | 9 | 6 | 1527.9 | -1.8 | Details |
| 14 | Mangaung Metro Chess 7-8 March 2025 (A) | Standard | 2025-03-07 | 2025-03-08 | Mangaung (FMB) | 5 | 1593.2 | 5 | 3 | 1462.3 | -11.9 | Details |
| 15 | Grey College Team Championship 2025 (Prestige) | Standard | 2025-02-21 | 2025-02-22 | Mangaung (FMB) | 5 | 1541.5 | 5 | 4.5 | 1785 | 24.9 | Details |
| 16 | Mangaung Metro Chess 7-8 February 2025 (A) | Standard | 2025-02-07 | 2025-02-08 | Mangaung (FMB) | 5 | 1541.5 | 5 | 3 | 1609.5 | 7.4 | Details |
| 17 | Mangaung Metro Chess 25 January 2025 (A) | Rapid | 2025-01-25 | 2025-01-25 | Mangaung (FMB) | 5 | 1559.2 | 5 | 3 | 1399.4 | -11 | Details |
| 18 | Mangaung Metro Chess 11-12 October 2024 (A) | Standard | 2024-10-11 | 2024-10-12 | Mangaung (FMB) | 5 | 1546.6 | 5 | 3.5 | 1632.2 | 7.9 | Details |
| 19 | 2024 Moja Chess Extravaganza (B) | Classical | 2024-09-25 | 2024-09-29 | Frances Baard (NCF) | 9 | 1523.9 | 9 | 4.5 | 1582.7 | 13.4 | Details |
| 20 | Smart Chess Blitz 2024 (A) | Blitz | 2024-09-07 | 2024-09-07 | Mangaung (FMB) | 7 | 1523.9 | 7 | 4 | 1544 | 0.8 | Details |
| 21 | Bloemfontein Highschool League 02 Aug 2024 (U19A) | Rapid | 2024-08-02 | 2024-08-02 | Mangaung (FMB) | 5 | 1553.6 | 5 | 5 | 1682.3 | 5.7 | Details |
| 22 | Mangaung Metro Chess 3 August 2024 (A) | Rapid | 2024-08-03 | 2024-08-03 | Mangaung (FMB) | 5 | 1553.6 | 5 | 3.5 | 1610.9 | 4.8 | Details |
| 23 | Morris Club Championship 2024 | Standard | 2024-07-26 | 2024-07-27 | Mangaung (FMB) | 5 | 1553.6 | 4 | 1 | 1204.3 | -29.1 | Details |
| 24 | 10th Piet van Zyl Chess Festival 2024 (A+B) | Standard | 2024-05-24 | 2024-05-25 | Mangaung (FMB) | 5 | 1554.3 | 5 | 3 | 1556.5 | 1.1 | Details |
| 25 | Mangaung Metro Chess 10-11 May 2024 (A) | Standard | 2024-05-10 | 2024-05-11 | Mangaung (FMB) | 5 | 1554.3 | 5 | 3 | 1483.7 | -6.2 | Details |
| 26 | Spartan Bishops Chess Championships 2024 (Bishops) | Standard | 2024-05-04 | 2024-05-05 | Bojanala Platina (NBR) | 5 | 1554.3 | 5 | 3.5 | 1593.4 | 4.6 | Details |
| 27 | Mangaung Metro Chess 12-13 April 2024 (A) | Standard | 2024-04-12 | 2024-04-13 | Mangaung (FMB) | 5 | 1549.2 | 5 | 4 | 1584.2 | 3.2 | Details |
| 28 | Bloemfontein Highschool League 2024 (U19A) | Rapid | 2024-03-08 | 2024-03-08 | Mangaung (FMB) | 5 | 1535.4 | 5 | 5 | 1646.4 | 4.8 | Details |
| 29 | Mangaung Metro Chess 9 March 2024 (A) | Rapid | 2024-03-09 | 2024-03-09 | Mangaung (FMB) | 5 | 1535.4 | 5 | 3 | 1578.3 | 3.8 | Details |
| 30 | Mangaung Metro Chess 10 February 2024 (A) | Rapid | 2024-02-10 | 2024-02-10 | Mangaung (FMB) | 5 | 1488.3 | 5 | 3.5 | 1780.7 | 19.4 | Details |
| 31 | Grey College Team Championship 2024 (A) | Standard | 2024-02-23 | 2024-02-24 | Mangaung (FMB) | 5 | 1488.3 | 5 | 3.5 | 1519.1 | 3.8 | Details |
| 32 | Bloemfontein High School League 16 February 2024 (U19A+U19B) | Rapid | 2024-02-16 | 2024-02-16 | Mangaung (FMB) | 5 | 1488.3 | 5 | 4.5 | 1627 | 6.1 | Details |
| 33 | Kings & Queens Chess 27 January 2024 (A) | Rapid | 2024-01-27 | 2024-01-27 | Mangaung (FMB) | 5 | 1459.1 | 5 | 4 | 1712.3 | 18.2 | Details |
| 34 | Bloemfontein HS League 13 October 2023 (U17+U19) | Rapid | 2023-10-13 | 2023-10-13 | Mangaung (FMB) | 5 | 1495 | 5 | 4 | 1575.5 | 4.2 | Details |
| 35 | Heidedal Chess 14 October 2023 (A) | Rapid | 2023-10-14 | 2023-10-14 | Mangaung (FMB) | 5 | 1495 | 5 | 2 | 1210.1 | -20.3 | Details |
| 36 | Bloemfontein HS League 27 October 2023 (U19) | Rapid | 2023-10-27 | 2023-10-27 | Cape Winelands (WCW) | 5 | 1495 | 5 | 3 | 1352.8 | -6.1 | Details |
| 37 | St Andrews 19 August 2023 (A) | Rapid | 2023-08-19 | 2023-08-19 | Mangaung (FMB) | 5 | 1474.6 | 5 | 3.5 | 1638.8 | 12.6 | Details |
| 38 | Morris Club Championship 2023 | Rapid | 2023-07-28 | 2023-07-28 | Mangaung (FMB) | 5 | 1464.7 | 5 | 4 | 1550.2 | 5.9 | Details |
| 39 | 9th Piet van Zyl Chess Festival 2023 (B) | Standard | 2023-05-26 | 2023-05-27 | Mangaung (FMB) | 5 | 1405.7 | 5 | 3.5 | 1475 | 6.9 | Details |
| 40 | Inter Regional Chess Championship 2023 (U16) | Standard | 2023-05-19 | 2023-05-20 | Mangaung (FMB) | 5 | 1405.7 | 5 | 5 | 1712.3 | 29.7 | Details |
| 41 | Grey College Team Championship 2023 (A) | Standard | 2023-02-03 | 2023-02-04 | Mangaung (FMB) | 5 | 1375.5 | 5 | 4.5 | 1653.3 | 27.9 | Details |
| 42 | Bloemfontein Highschool League 24 Feb 2023 (U19A) | Rapid | 2023-02-24 | 2023-02-24 | Mangaung (FMB) | 5 | 1375.5 | 5 | 3 | 1117.8 | -9.1 | Details |
| 43 | Kings & Queens Chess 21 January 2023 (A) | Rapid | 2023-01-21 | 2023-01-21 | Mangaung (FMB) | 5 | 1370.1 | 5 | 3 | 1422.2 | 3.4 | Details |
| 44 | 2022 South African Junior Team Chess Championships (U16 Open) | Classical | 2022-12-04 | 2022-12-08 | 4 Knights (4K) | 7 | 1400.5 | 7 | 2 | 1280.3 | -19 | Details |
| 45 | Courteney Page Chess Festival 2022 (A+B) | Rapid | 2022-10-15 | 2022-10-15 | Mangaung (FMB) | 5 | 1399.7 | 5 | 2.5 | 1413.1 | 0.5 | Details |
| 46 | Bloemfontein School League 2022 (U19) | Rapid | 2022-08-12 | 2022-08-12 | Mangaung (FMB) | 5 | 1394.7 | 5 | 4.5 | 1455 | 10.2 | Details |
| 47 | Mangaung Metro Chess 13 August 2022 (A) | Rapid | 2022-08-13 | 2022-08-13 | Mangaung (FMB) | 5 | 1394.7 | 5 | 2 | 1280.8 | -8.9 | Details |
| 48 | Balans Blitz Chess 2022 (A) | Blitz | 2022-08-13 | 2022-08-13 | Mangaung (FMB) | 7 | 1394.7 | 6 | 3 | 1483.2 | 1.7 | Details |
| 49 | Mangaung Metro Chess 30 July 2022 (A) | Rapid | 2022-07-30 | 2022-07-30 | Mangaung (FMB) | 5 | 1405.7 | 4 | 2 | 1279.3 | -7.4 | Details |
| 50 | 8th Piet Van Zyl Chess Festival 2022 (A) | Standard | 2022-07-22 | 2022-07-23 | Mangaung (FMB) | 5 | 1405.7 | 5 | 2 | 1465.1 | 0.9 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 3 |
| Draws | 0 |
| Losses | 2 |
| White | 3 |
| Black | 2 |
| White wins | 1 |
| Black wins | 2 |
| Score | 3 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1610.9 |
| Performance | 1695.9 |
Game statistics ()
| Games | 43 |
| Wins | 28 |
| Draws | 3 |
| Losses | 12 |
| White | 21 |
| Black | 22 |
| White wins | 11 |
| Black wins | 17 |
| Score | 29.5 |
| Percent | 68.6 |
| Dp | 158.1 |
| AOR | 1566.3 |
| Performance | 1724.4 |
Game statistics (History)
| Games | 463 |
| Wins | 281 |
| Draws | 43 |
| Losses | 139 |
| White | 234 |
| Black | 229 |
| White wins | 146 |
| Black wins | 135 |
| Score | 302.5 |
| Percent | 65.3 |
| Dp | 130.3 |
| AOR | 1289.5 |
| Performance | 1419.8 |
Rankings (Main)
| National | |
| Overall | 305 |
| Gender | 286 |
| Age group | 33 |
| Gender/Age | 30 |
| Provincial | |
| Overall | 4 |
| Gender | 4 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 4 |
| Gender | 4 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Standard)
| National | |
| Overall | 270 |
| Gender | 254 |
| Age group | 31 |
| Gender/Age | 28 |
| Provincial | |
| Overall | 4 |
| Gender | 4 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 4 |
| Gender | 4 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Rapid)
| National | |
| Overall | 273 |
| Gender | 258 |
| Age group | 23 |
| Gender/Age | 22 |
| Provincial | |
| Overall | 2 |
| Gender | 2 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 2 |
| Gender | 2 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 5 |
| Score | 3 |
| Percent | 60 |
| Aor | 1610.9 |
| Dp | 85 |
| Prat | 1695.9 |
Performance ()
| Games | 43 |
| Score | 29.5 |
| Percent | 68.6 |
| Aor | 1566.3 |
| Dp | 158.1 |
| Prat | 1724.4 |
Performance (12 months)
| Games | 60 |
| Score | 43 |
| Percent | 71.7 |
| Aor | 1558 |
| Dp | 184.2 |
| Prat | 1742.2 |
Performance (History)
| Games | 463 |
| Score | 302.5 |
| Percent | 65.3 |
| Aor | 1289.5 |
| Dp | 130.3 |
| Prat | 1419.8 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Jordaan, W (Wian) | 9 | 4 | 5 | Smart Chess Blitz 2018 (U12) | Mangaung Metro Chess 10-11 May 2024 (A) | Details |
| Overall | 2 | Senatle, K (Kamogelo) | 9 | 2 | 7 | Mangaung Metro Chess 30 July 2022 (A) | Mangaung Metro Chess 11-12 October 2024 (A) | Details |
| Overall | 3 | Sekharume, L (Lefu) | 8 | 6 | 2 | Mangaung Metro Chess 9 March 2024 (A) | Free State Closed 2026 (Open) | Details |
| Overall | 4 | Weng, Q (Qi) | 7 | 3 | 4 | Inter Regional Chess Championship 2023 (U16) | Free State Closed 2025 (U18 Open) | Details |
| Overall | 5 | Modirwa, O (Ofentse) | 7 | 3 | 4 | Smart Chess Blitz 2022 (Open) | Mangaung Metro Chess 10-11 April 2026 (A) | Details |
| Standard | 1 | Sekharume, L (Lefu) | 7 | 5 | 2 | 10th Piet van Zyl Chess Festival 2024 (A+B) | Free State Closed 2026 (Open) | Details |
| Standard | 2 | Van Rensburg, M (Malan) | 4 | 3 | 1 | Mangaung Metro Chess 19 & 20 January 2018 (E) | 9th Piet van Zyl Chess Festival 2023 (B) | Details |
| Standard | 3 | Redguard, J (Junaid) | 4 | 2 | 2 | Mangaung Metro Chess 31 May to 1 June 2019 (C) | Mangaung Metro Chess 17-18 January 2020 (B) | Details |
| Standard | 4 | Pretorius, L (Leighan) | 3 | 1 | 2 | Mangaung Metro Chess 12-13 April 2024 (A) | 10th Piet van Zyl Chess Festival 2024 (A+B) | Details |
| Standard | 5 | Venter, I (Imche) | 3 | 3 | 0 | Mangaung Metro Chess 1-2 February 2019 (C) | Mangaung Metro Chess October 2019 (B) | Details |
| Rapid | 1 | Jordaan, W (Wian) | 5 | 3 | 2 | Mangaung Metro Chess 22 January 2022 (A) | Bloemfontein High School League 16 February 2024 (U19A+U19B) | Details |
| Rapid | 2 | Senatle, K (Kamogelo) | 4 | 2 | 2 | Mangaung Metro Chess 30 July 2022 (A) | Kings & Queens Chess 27 January 2024 (A) | Details |
| Rapid | 3 | Modirwa, O (Ofentse) | 4 | 2 | 2 | Morris Club Championship 2023 | Mangaung Metro Chess 3 August 2024 (A) | Details |
| Rapid | 4 | Kotze, CJ (Christiaan Jacob) | 4 | 3 | 1 | Mangaung Metro Chess 22 January 2022 (A) | Bloemfontein High School League 16 February 2024 (U19A+U19B) | Details |
| Rapid | 5 | De Villiers, H (Hj) | 4 | 2 | 2 | Courteney Page Chess Festival 2022 (A+B) | Bloemfontein Highschools Chess Teams 2026 (Grade 11-12) | Details |
| Blitz | 1 | Modirwa, O (Ofentse) | 2 | 1 | 1 | Smart Chess Blitz 2022 (Open) | Smart Chess Blitz 2024 (A) | Details |
| Blitz | 2 | Pretorius, L (Leighan) | 2 | 2 | 0 | Balans Blitz Chess 2022 (A) | Smart Chess Blitz 2025 (Open) | Details |
| Blitz | 3 | Landman, J (Johan) | 2 | 0 | 2 | Smart Chess Blitz 2022 (Open) | Smart Chess Blitz 2025 (Open) | Details |
| Blitz | 4 | Nophale, N (Ntokozo) | 2 | 2 | 0 | Smart Chess Blitz 2022 (Open) | Balans Blitz Chess 2022 (A) | Details |
| Blitz | 5 | Jordaan, W (Wian) | 2 | 1 | 1 | Smart Chess Blitz 2018 (U12) | Smart Chess Blitz 2020 (U14) | Details |