PLAYER PAGE
Janko Pretorius
1170318676Waterberg (LWM)Personal
Main rating
| Rating | 1311.9 |
| K-factor | 36 |
| Floor | 811.9 |
| Highest | 1311.9 (2026-07-01) |
| Min/Max +/- allowed | 141 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1269.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1311.9 |
| K-factor | 36 |
| Floor | 811.9 |
| Highest | 1311.9 (2026-07-01) |
| Min/Max +/- allowed | 141.4 |
Standard rating
| Rating | 1241 |
| K-factor | 36 |
| Floor | 741 |
| Highest | 1241 (2026-01-01) |
| Min/Max +/- allowed | 156.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1241 |
| K-factor | 36 |
| Floor | 741 |
| Highest | 1241 (2026-01-01) |
| Min/Max +/- allowed | 156.4 |
Rapid rating
| Rating | 1338.7 |
| K-factor | 36 |
| Floor | 838.7 |
| Highest | 1338.7 (2026-07-01) |
| Min/Max +/- allowed | 136.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1328.4 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1338.7 |
| K-factor | 36 |
| Floor | 838.7 |
| Highest | 1338.7 (2026-07-01) |
| Min/Max +/- allowed | 136.1 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-04-01) |
| 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 (2025-04-01) |
| 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 | Waterberg Junior Qualifying Tournament #5 2026 (U10) | Rapid | 2026-06-20 | 2026-06-20 | Waterberg (LWM) | 5 | 1302.6 | 5 | 5 | 1302.6 | 9.3 | Details |
| 2 | Waterberg Junior Qualifying Tournament #4 2026 (U10) | Rapid | 2026-05-16 | 2026-05-16 | Waterberg (LWM) | 5 | 1239.6 | 5 | 4.5 | 1535 | 38.8 | Details |
| 3 | NaboomSpar Open Chess Tournament 27 Apr 2026 | Rapid | 2026-04-27 | 2026-04-27 | Waterberg (LWM) | 6 | 1239.6 | 6 | 4.5 | 1410.6 | 24.2 | Details |
| 4 | Waterberg Open Chess Tournament 21 March 2026 | Rapid | 2026-03-21 | 2026-03-21 | Waterberg (LWM) | 5 | 1255.4 | 5 | 2 | 1113.8 | -15.8 | Details |
| 5 | 2025 Mzansi Individual Championships (U10 Open) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1223.3 | 6 | 2 | 1320.6 | 13.4 | Details |
| 6 | 2025 Mzansi Inter Provincial Team Championships (U10 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1223.3 | 6 | 2.5 | 1264.1 | 4.6 | Details |
| 7 | NABOOMSPAR Open Chess Tournament 21 Mar 2025 (B) | Rapid | 2025-03-21 | 2025-03-21 | Capricorn (LCP) | 5 | 1200 | 5 | 3.5 | 1370.5 | 11.6 | 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 | 21 |
| Wins | 15 |
| Draws | 2 |
| Losses | 4 |
| White | 9 |
| Black | 12 |
| White wins | 5 |
| Black wins | 10 |
| Score | 16 |
| Percent | 76.2 |
| Dp | 222.6 |
| AOR | 1121.2 |
| Performance | 1343.8 |
Game statistics (History)
| Games | 38 |
| Wins | 22 |
| Draws | 4 |
| Losses | 12 |
| White | 17 |
| Black | 21 |
| White wins | 9 |
| Black wins | 13 |
| Score | 24 |
| Percent | 63.2 |
| Dp | 111.8 |
| AOR | 1219.2 |
| Performance | 1331.1 |
Rankings (Main)
| National | |
| Overall | 6045 |
| Gender | 4962 |
| Age group | 276 |
| Gender/Age | 212 |
| Provincial | |
| Overall | 177 |
| Gender | 166 |
| Age group | 7 |
| Gender/Age | 5 |
| Regional | |
| Overall | 9 |
| Gender | 8 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Standard)
| National | |
| Overall | 8187 |
| Gender | 6464 |
| Age group | 446 |
| Gender/Age | 326 |
| Provincial | |
| Overall | 190 |
| Gender | 168 |
| Age group | 7 |
| Gender/Age | 5 |
| Regional | |
| Overall | 10 |
| Gender | 8 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Rapid)
| National | |
| Overall | 1498 |
| Gender | 1269 |
| Age group | 62 |
| Gender/Age | 54 |
| Provincial | |
| Overall | 106 |
| Gender | 99 |
| Age group | 5 |
| Gender/Age | 4 |
| Regional | |
| Overall | 4 |
| Gender | 4 |
| 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 | 21 |
| Score | 16 |
| Percent | 76.2 |
| Aor | 1121.2 |
| Dp | 222.6 |
| Prat | 1343.8 |
Performance (12 months)
| Games | 33 |
| Score | 20.5 |
| Percent | 62.1 |
| Aor | 1222.1 |
| Dp | 103 |
| Prat | 1325.1 |
Performance (History)
| Games | 38 |
| Score | 24 |
| Percent | 63.2 |
| Aor | 1219.2 |
| Dp | 111.8 |
| Prat | 1331.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |