PLAYER PAGE
Stefan Oosthuizen
1100321846Sarah Baartman (ESB)Personal
Main rating
| Rating | 1524.4 |
| K-factor | 32 |
| Floor | 931.9 |
| Highest | 1524.4 (2026-02-28) |
| Min/Max +/- allowed | 104 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1527.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1524.4 |
| K-factor | 32 |
| Floor | 931.9 |
| Highest | 1524.4 (2026-02-28) |
| Min/Max +/- allowed | 104.4 |
Standard rating
| Rating | 1514.8 |
| K-factor | 32 |
| Floor | 947.3 |
| Highest | 1514.8 (2026-02-28) |
| Min/Max +/- allowed | 105.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1527.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1514.8 |
| K-factor | 32 |
| Floor | 947.3 |
| Highest | 1514.8 (2026-02-28) |
| Min/Max +/- allowed | 105.9 |
Rapid rating
| Rating | 1274.1 |
| K-factor | 36 |
| Floor | 774.1 |
| Highest | 1274.1 (2025-08-01) |
| Min/Max +/- allowed | 149.2 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1274.1 |
| K-factor | 36 |
| Floor | 774.1 |
| Highest | 1274.1 (2025-08-01) |
| Min/Max +/- allowed | 149.2 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-06-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-06-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | SBDCA Trial 4 2026 (U16+U18) | Standard | 2026-02-14 | 2026-02-14 | Sarah Baartman (ESB) | 5 | 1460.6 | 5 | 4 | 1682.4 | 0 | Details |
| 2 | SBDCA Trial 1 2026 (U16+U18) | Standard | 2026-01-17 | 2026-01-17 | Sarah Baartman (ESB) | 5 | 1350.7 | 5 | 3.5 | 1594.1 | 0 | Details |
| 3 | 2025 Mzansi Individual Championships (U16 Open) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1328 | 6 | 2 | 1285.8 | 0 | Details |
| 4 | 2025 Mzansi Inter Provincial Team Championships (U16 Open) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1328 | 6 | 2.5 | 1490.4 | 0 | Details |
| 5 | EC Closed 2025 (U16 Open) | Standard | 2025-09-06 | 2025-09-07 | Nelson Mandela Bay (ENM) | 6 | 1250.3 | 5 | 3.5 | 1636 | 0 | Details |
| 6 | Port Alfred Chess Tournament 2025 (B) | Rapid | 2025-06-21 | 2025-06-21 | Sarah Baartman (ESB) | 5 | 1200 | 5 | 4.5 | 1600.6 | 0 | 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 | 10 |
| Wins | 7 |
| Draws | 1 |
| Losses | 2 |
| White | 6 |
| Black | 4 |
| White wins | 4 |
| Black wins | 3 |
| Score | 7.5 |
| Percent | 75 |
| Dp | 212.5 |
| AOR | 1425.7 |
| Performance | 1638.2 |
Game statistics (History)
| Games | 32 |
| Wins | 16 |
| Draws | 8 |
| Losses | 8 |
| White | 17 |
| Black | 15 |
| White wins | 9 |
| Black wins | 7 |
| Score | 20 |
| Percent | 62.5 |
| Dp | 106.2 |
| AOR | 1431.9 |
| Performance | 1538.2 |
Rankings (Main)
| National | |
| Overall | 1558 |
| Gender | 1397 |
| Age group | 175 |
| Gender/Age | 150 |
| Provincial | |
| Overall | 149 |
| Gender | 133 |
| Age group | 23 |
| Gender/Age | 22 |
| Regional | |
| Overall | 31 |
| Gender | 29 |
| Age group | 6 |
| Gender/Age | 6 |
Rankings (Standard)
| National | |
| Overall | 1523 |
| Gender | 1347 |
| Age group | 178 |
| Gender/Age | 150 |
| Provincial | |
| Overall | 155 |
| Gender | 137 |
| Age group | 27 |
| Gender/Age | 24 |
| Regional | |
| Overall | 30 |
| Gender | 28 |
| Age group | 8 |
| Gender/Age | 7 |
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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 10 |
| Score | 7.5 |
| Percent | 75 |
| Aor | 1425.7 |
| Dp | 212.5 |
| Prat | 1638.2 |
Performance (12 months)
| Games | 32 |
| Score | 20 |
| Percent | 62.5 |
| Aor | 1431.9 |
| Dp | 106.2 |
| Prat | 1538.2 |
Performance (History)
| Games | 32 |
| Score | 20 |
| Percent | 62.5 |
| Aor | 1431.9 |
| Dp | 106.2 |
| Prat | 1538.2 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Ackerdien, S (Saud) | 2 | 1 | 1 | EC Closed 2025 (U16 Open) | 2025 Mzansi Inter Provincial Team Championships (U16 Open) | Details |
| Overall | 2 | Munemo, T (Tanaka) | 2 | 2 | 0 | SBDCA Trial 1 2026 (U16+U18) | SBDCA Trial 4 2026 (U16+U18) | Details |
| Standard | 1 | Ackerdien, S (Saud) | 2 | 1 | 1 | EC Closed 2025 (U16 Open) | 2025 Mzansi Inter Provincial Team Championships (U16 Open) | Details |
| Standard | 2 | Munemo, T (Tanaka) | 2 | 2 | 0 | SBDCA Trial 1 2026 (U16+U18) | SBDCA Trial 4 2026 (U16+U18) | Details |