PLAYER PAGE
Stefan van der Merwe
1120316252Cape Winelands (WCW)Personal
Main rating
| Rating | 1427.3 |
| K-factor | 32 |
| Floor | 927.3 |
| Highest | 1427.3 (2026-03-01) |
| Min/Max +/- allowed | 120 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1399.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1427.3 |
| K-factor | 32 |
| Floor | 927.3 |
| Highest | 1427.3 (2026-03-01) |
| Min/Max +/- allowed | 119.9 |
Standard rating
| Rating | 1409.1 |
| K-factor | 32 |
| Floor | 909.1 |
| Highest | 1409.1 (2026-03-01) |
| Min/Max +/- allowed | 123.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1381.6 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1409.1 |
| K-factor | 32 |
| Floor | 909.1 |
| Highest | 1409.1 (2026-03-01) |
| Min/Max +/- allowed | 123.1 |
Rapid rating
| Rating | 1323.2 |
| K-factor | 36 |
| Floor | 823.2 |
| Highest | 1323.2 (2026-03-01) |
| Min/Max +/- allowed | 139.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1323.2 |
| K-factor | 36 |
| Floor | 823.2 |
| Highest | 1323.2 (2026-03-01) |
| Min/Max +/- allowed | 139.1 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| 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 (2025-03-01) |
| 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 | Cape Winelands Schools - Prestige 2026 (U15 Boys) | Standard | 2026-03-21 | 2026-03-21 | Cape Winelands (WCW) | 5 | 1348.5 | 5 | 3 | 1409.3 | 12 | Details |
| 2 | Cape Winelands Open Rapid 2026 (Intermediate) | Rapid | 2026-03-14 | 2026-03-14 | Cape Winelands (WCW) | 6 | 1348.5 | 6 | 5 | 1531.8 | 22.1 | Details |
| 3 | Cape Winelands Schools - High School Trials 1 2026 (U15 Boys) | Standard | 2026-02-28 | 2026-02-28 | Cape Winelands | 5 | 1348.5 | 5 | 3 | 1407.3 | 9.1 | Details |
| 4 | Marie Delport Memorial 2026 (Open) | Standard | 2026-01-31 | 2026-01-31 | Cape Winelands (WCW) | 6 | 1303.5 | 6 | 4 | 1504.5 | 13.6 | Details |
| 5 | Paarl Boys' High School Chess Festival 2025 (Primary Schools) | Standard | 2025-10-17 | 2025-10-18 | Cape Winelands (WCW) | 6 | 1248.5 | 6 | 4 | 1510.7 | 30.5 | Details |
| 6 | Kleinmond Chess Club Open 2025 (U14) | Rapid | 2025-08-30 | 2025-08-30 | Overberg (WOS) | 6 | 1216.3 | 6 | 4 | 1451.6 | 17.8 | Details |
| 7 | Cape Winelands Open 2025 (U14) | Standard | 2025-07-19 | 2025-07-19 | Cape Winelands (WCW) | 5 | 1200 | 5 | 2 | 1292.5 | 8.1 | Details |
| 8 | Cape Winelands Schools - Trials 1 2025 (U13 Boys) | Standard | 2025-02-22 | 2025-02-22 | Cape Winelands (WCW) | 5 | 1200 | 2 | 1 | 1191.6 | -0.3 | 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 | 22 |
| Wins | 15 |
| Draws | 0 |
| Losses | 7 |
| White | 11 |
| Black | 11 |
| White wins | 5 |
| Black wins | 10 |
| Score | 15 |
| Percent | 68.2 |
| Dp | 154.5 |
| AOR | 1313.7 |
| Performance | 1468.2 |
Game statistics (History)
| Games | 41 |
| Wins | 26 |
| Draws | 0 |
| Losses | 15 |
| White | 21 |
| Black | 20 |
| White wins | 13 |
| Black wins | 13 |
| Score | 26 |
| Percent | 63.4 |
| Dp | 114 |
| AOR | 1323 |
| Performance | 1437.1 |
Rankings (Main)
| National | |
| Overall | 3078 |
| Gender | 2624 |
| Age group | 407 |
| Gender/Age | 326 |
| Provincial | |
| Overall | 927 |
| Gender | 756 |
| Age group | 125 |
| Gender/Age | 97 |
| Regional | |
| Overall | 136 |
| Gender | 103 |
| Age group | 26 |
| Gender/Age | 21 |
Rankings (Standard)
| National | |
| Overall | 3064 |
| Gender | 2556 |
| Age group | 438 |
| Gender/Age | 345 |
| Provincial | |
| Overall | 886 |
| Gender | 691 |
| Age group | 129 |
| Gender/Age | 95 |
| Regional | |
| Overall | 133 |
| Gender | 95 |
| Age group | 25 |
| Gender/Age | 18 |
Rankings (Rapid)
| National | |
| Overall | 1691 |
| Gender | 1427 |
| Age group | 325 |
| Gender/Age | 256 |
| Provincial | |
| Overall | 733 |
| Gender | 603 |
| Age group | 122 |
| Gender/Age | 94 |
| Regional | |
| Overall | 110 |
| Gender | 88 |
| Age group | 21 |
| Gender/Age | 18 |
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 | 22 |
| Score | 15 |
| Percent | 68.2 |
| Aor | 1313.7 |
| Dp | 154.5 |
| Prat | 1468.2 |
Performance (12 months)
| Games | 39 |
| Score | 25 |
| Percent | 64.1 |
| Aor | 1329.8 |
| Dp | 119.9 |
| Prat | 1449.7 |
Performance (History)
| Games | 41 |
| Score | 26 |
| Percent | 63.4 |
| Aor | 1323 |
| Dp | 114 |
| Prat | 1437.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Holmes, M (Matthew) | 2 | 2 | 0 | Cape Winelands Schools - High School Trials 1 2026 (U15 Boys) | Cape Winelands Schools - Prestige 2026 (U15 Boys) | Details |
| Standard | 1 | Holmes, M (Matthew) | 2 | 2 | 0 | Cape Winelands Schools - High School Trials 1 2026 (U15 Boys) | Cape Winelands Schools - Prestige 2026 (U15 Boys) | Details |