PLAYER PAGE
Hendrik Johannes Weideman
186042532Mangaung (FMB)Personal
Main rating
| Rating | 1598.5 |
| K-factor | 28 |
| Floor | 1224.9 |
| Highest | 1724.9 (2026-04-01) |
| Min/Max +/- allowed | 78 |
| Rating Change () | |
| Games | 4 |
| Score | 1.5 |
| We | 1.28 |
| SWe | 0.19 |
| Temp +/- | 5.3 |
| Penalties | 0 |
| Weight perform | 1507 |
| Final +/- | +5.3 |
| New Rating () | |
| Rating | 1603.7 |
| K-factor | 28 |
| Floor | 1224.9 |
| Highest | 1724.9 (2026-04-01) |
| Min/Max +/- allowed | 78.5 |
Standard rating
| Rating | 1576 |
| K-factor | 28 |
| Floor | 1217.7 |
| Highest | 1717.7 (2026-04-01) |
| Min/Max +/- allowed | 79.3 |
| Rating Change () | |
| Games | 4 |
| Score | 1.5 |
| We | 1.23 |
| SWe | 0.27 |
| Temp +/- | 7.4 |
| Penalties | 0 |
| Weight perform | 1507 |
| Final +/- | +7.4 |
| New Rating () | |
| Rating | 1583.4 |
| K-factor | 28 |
| Floor | 1217.7 |
| Highest | 1717.7 (2026-04-01) |
| Min/Max +/- allowed | 79.3 |
Rapid rating
| Rating | 1389.5 |
| K-factor | 36 |
| Floor | 893 |
| Highest | 1393 (2018-12-01) |
| Min/Max +/- allowed | 126 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1389.5 |
| K-factor | 36 |
| Floor | 893 |
| Highest | 1393 (2018-12-01) |
| Min/Max +/- allowed | 126 |
Blitz rating
| Rating | 1392.9 |
| K-factor | 36 |
| Floor | 893 |
| Highest | 1393 (2018-12-01) |
| Min/Max +/- allowed | 126 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1392.9 |
| K-factor | 36 |
| Floor | 893 |
| Highest | 1393 (2018-12-01) |
| Min/Max +/- allowed | 126 |
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 | 1598.5 | 4 | 1.5 | 1647.7 | 5.3 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 JMCA Open Chess Tournament (B) | Standard | 2026-08-15 | 2026-08-15 | Tshwane (GTP) | 5 | 1598.5 | 5 | 2 | 1412 | -28.2 | Details |
| 2 | Free State Closed 2026 (Open) | Standard | 2026-07-25 | 2026-07-25 | Mangaung (FMB) | 5 | 1625.5 | 5 | 2.5 | 1641 | 1.1 | Details |
| 3 | Mangaung Metro Chess 5-6 June 2026 (A) | Standard | 2026-06-05 | 2026-06-06 | Mangaung (FMB) | 5 | 1689.3 | 5 | 1 | 1218.4 | -63.8 | Details |
| 4 | Inter Regional Chess Championship 2026 (Individual Adult) | Standard | 2026-05-22 | 2026-05-23 | Mangaung (FMB) | 5 | 1724.9 | 5 | 4 | 1823.4 | 12.9 | Details |
| 5 | 2026 Centurion Mall Open Chess Tournament (A) | Standard | 2026-05-16 | 2026-05-17 | Tshwane (GTP) | 5 | 1724.9 | 4 | 1 | 1507.1 | -26.9 | Details |
| 6 | Mangaung Metro Chess 8-9 May 2026 (A) | Standard | 2026-05-08 | 2026-05-09 | Mangaung (FMB) | 5 | 1724.9 | 5 | 3 | 1573.9 | -21.5 | Details |
| 7 | 2026 PBHS Open (B) | Standard | 2026-04-25 | 2026-04-25 | Tshwane (GTP) | 5 | 1635.8 | 5 | 4 | 1795.6 | 23 | Details |
| 8 | 2026 KSNG Open Chess Tournament (B) | Standard | 2026-04-18 | 2026-04-18 | Tshwane (GTP) | 5 | 1635.8 | 5 | 3 | 1643.9 | 2.2 | Details |
| 9 | 2026 Mid Gauteng Open (B) | Standard | 2026-04-11 | 2026-04-11 | Tshwane (GTP) | 5 | 1635.8 | 5 | 4 | 1853.5 | 30.8 | Details |
| 10 | 2026 Chris Greyling Open Tournament (B) | Standard | 2026-03-14 | 2026-03-14 | Tshwane (GTP) | 5 | 1532.5 | 5 | 3 | 1649.4 | 17.1 | Details |
| 11 | 2026 Silver Lakes Open Chess Tournament (B) | Standard | 2026-03-07 | 2026-03-07 | Tshwane (GTP) | 5 | 1532.5 | 5 | 3 | 1690.4 | 25.7 | Details |
| 12 | 2026 AHS Chess Tournament (B) | Standard | 2026-02-28 | 2026-02-28 | Tshwane (GTP) | 5 | 1532.5 | 5 | 3.5 | 1754.2 | 35.7 | Details |
| 13 | 2025 Mzansi Individual Championships (Adult) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1507.1 | 6 | 3.5 | 1554.2 | 6.6 | Details |
| 14 | 2025 Mzansi Inter Provincial Team Championships (Adults) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1507.1 | 6 | 3.5 | 1585.9 | 9.3 | Details |
| 15 | Free State Closed 2025 (Adult Open) | Standard | 2025-08-14 | 2025-08-15 | Mangaung (FMB) | 5 | 1506.1 | 4 | 2 | 1512.6 | 0.6 | Details |
| 16 | 2025 Wynie Robbertse Chess Tournament (B) | Standard | 2025-07-19 | 2025-07-19 | Tshwane (GTP) | 5 | 1501.5 | 4 | 2 | 1562.1 | 4.6 | Details |
| 17 | South African Open 2025 (B) | Classical | 2025-06-28 | 2025-07-05 | Johannesburg Metro (GJM) | 11 | 1501.5 | 11 | 5.5 | 1441.8 | -14.4 | Details |
| 18 | South African Open 2025 (Blitz) | Blitz | 2025-07-02 | 2025-07-02 | Johannesburg Metro (GJM) | 9 | 1501.5 | 9 | 5 | 1648.4 | 4.5 | Details |
| 19 | 2025 Elise Steenkamp Open Chess Tournament (Queen) | Standard | 2025-06-14 | 2025-06-16 | Tshwane (GTP) | 7 | 1419.5 | 7 | 5 | 1678.7 | 40.7 | Details |
| 20 | Mangaung Metro Chess 9-10 May 2025 (A) | Standard | 2025-05-09 | 2025-05-10 | Mangaung (FMB) | 5 | 1404.4 | 5 | 2.5 | 1433.8 | 2.2 | Details |
| 21 | 2025 Silver Lakes Chess Club Open Chess Tournament (C) | Standard | 2025-05-03 | 2025-05-03 | Tshwane (GTP) | 5 | 1404.4 | 5 | 3.5 | 1484.9 | 7.3 | Details |
| 22 | 2025 Chris Greyling Open Chess Tournament (C) | Standard | 2025-03-15 | 2025-03-15 | Tshwane (GTP) | 5 | 1386.5 | 5 | 2.5 | 1452.2 | 5.6 | Details |
| 23 | AHS Open Chess Tournament 2025 (C) | Standard | 2025-03-01 | 2025-03-01 | Tshwane (GTP) | 5 | 1386.5 | 5 | 2.5 | 1437.9 | 4.3 | Details |
| 24 | 2025 KSNG Open (C) | Standard | 2025-02-22 | 2025-02-22 | Tshwane (GTP) | 5 | 1390.7 | 5 | 1.5 | 1247.1 | -14.8 | Details |
| 25 | 2025 Blou Bul Open Chess Tournament (C) | Standard | 2025-02-08 | 2025-02-08 | Tshwane (GTP) | 5 | 1390.7 | 5 | 3 | 1511.4 | 12.4 | Details |
| 26 | Mangaung Metro Chess 25 January 2025 (A) | Rapid | 2025-01-25 | 2025-01-25 | Mangaung (FMB) | 5 | 1382.3 | 4 | 1.5 | 1465.8 | 4.6 | Details |
| 27 | Morris Club Championship 2022 | Rapid | 2022-02-26 | 2022-02-26 | Mangaung (FMB) | 5 | 1393 | 4 | 2 | 1292.3 | -5.9 | Details |
| 28 | Morris Club Challenge 2013 | Standard | 2013-05-01 | 2013-05-01 | Free State (FS) | 5 | 1393 | 4 | 1 | 1312 | -6.3 | Details |
| 29 | Uj Dept. Of Acc. Chess Championship - B Section | Standard | 2010-08-31 | 2010-08-31 | Mid-Gauteng (GM) | 7 | 1346 | 7 | 5.5 | 1571 | 32.5 | Details |
Game statistics ( )
| Games | 4 |
| Wins | 1 |
| Draws | 1 |
| Losses | 2 |
| White | 2 |
| Black | 2 |
| White wins | 1 |
| Black wins | 0 |
| Score | 1.5 |
| Percent | 37.5 |
| Dp | -106.2 |
| AOR | 1754 |
| Performance | 1647.8 |
Game statistics ()
| Games | 63 |
| Wins | 27 |
| Draws | 17 |
| Losses | 19 |
| White | 30 |
| Black | 33 |
| White wins | 15 |
| Black wins | 12 |
| Score | 35.5 |
| Percent | 56.3 |
| Dp | 54 |
| AOR | 1579.3 |
| Performance | 1633.3 |
Game statistics (History)
| Games | 148 |
| Wins | 63 |
| Draws | 36 |
| Losses | 49 |
| White | 74 |
| Black | 74 |
| White wins | 36 |
| Black wins | 27 |
| Score | 81 |
| Percent | 54.7 |
| Dp | 40.2 |
| AOR | 1516.2 |
| Performance | 1556.4 |
Rankings (Main)
| National | |
| Overall | 1098 |
| Gender | 1007 |
| Age group | 482 |
| Gender/Age | 458 |
| Provincial | |
| Overall | 28 |
| Gender | 27 |
| Age group | 19 |
| Gender/Age | 19 |
| Regional | |
| Overall | 17 |
| Gender | 17 |
| Age group | 12 |
| Gender/Age | 12 |
Rankings (Standard)
| National | |
| Overall | 1152 |
| Gender | 1039 |
| Age group | 475 |
| Gender/Age | 448 |
| Provincial | |
| Overall | 26 |
| Gender | 25 |
| Age group | 18 |
| Gender/Age | 18 |
| Regional | |
| Overall | 16 |
| Gender | 16 |
| Age group | 12 |
| Gender/Age | 12 |
Rankings (Rapid)
| 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 |
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 | 4 |
| Score | 1.5 |
| Percent | 37.5 |
| Aor | 1754 |
| Dp | -106.2 |
| Prat | 1647.8 |
Performance ()
| Games | 63 |
| Score | 35.5 |
| Percent | 56.3 |
| Aor | 1579.3 |
| Dp | 54 |
| Prat | 1633.3 |
Performance (12 months)
| Games | 75 |
| Score | 42.5 |
| Percent | 56.7 |
| Aor | 1566.5 |
| Dp | 56.7 |
| Prat | 1623.2 |
Performance (History)
| Games | 148 |
| Score | 81 |
| Percent | 54.7 |
| Aor | 1516.2 |
| Dp | 40.2 |
| Prat | 1556.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Kgotse, T (Thorisho) | 4 | 1 | 3 | 2025 Blou Bul Open Chess Tournament (C) | 2026 Silver Lakes Open Chess Tournament (B) | Details |
| Overall | 2 | Pretorius, L (Leighan) | 3 | 1 | 2 | Mangaung Metro Chess 25 January 2025 (A) | Inter Regional Chess Championship 2026 (Individual Adult) | Details |
| Overall | 3 | Senatle, K (Kamogelo) | 3 | 0 | 3 | Mangaung Metro Chess 9-10 May 2025 (A) | Inter Regional Chess Championship 2026 (Individual Adult) | Details |
| Overall | 4 | Hannweg, NH (Norbert) | 3 | 3 | 0 | 2026 Silver Lakes Open Chess Tournament (B) | 2026 JMCA Open Chess Tournament (B) | Details |
| Overall | 5 | Ramonyai, M (Motshabo) | 2 | 1 | 1 | South African Open 2025 (Blitz) | 2026 Silver Lakes Open Chess Tournament (B) | Details |
| Standard | 1 | Kgotse, T (Thorisho) | 4 | 1 | 3 | 2025 Blou Bul Open Chess Tournament (C) | 2026 Silver Lakes Open Chess Tournament (B) | Details |
| Standard | 2 | Hannweg, NH (Norbert) | 3 | 3 | 0 | 2026 Silver Lakes Open Chess Tournament (B) | 2026 JMCA Open Chess Tournament (B) | Details |
| Standard | 3 | Senatle, K (Kamogelo) | 3 | 0 | 3 | Mangaung Metro Chess 9-10 May 2025 (A) | Inter Regional Chess Championship 2026 (Individual Adult) | Details |
| Standard | 4 | Rust, C (Christoph) | 2 | 0 | 2 | 2026 Chris Greyling Open Tournament (B) | 2026 Mid Gauteng Open (B) | Details |
| Standard | 5 | Mitchell, V (Vanadium) | 2 | 2 | 0 | Mangaung Metro Chess 5-6 June 2026 (A) | Free State Closed 2026 (Open) | Details |