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Sem Knopjes is a competitive kart racing driver from Netherlands, currently ranked #12 in the world in the KZ2 category with a WKR Rating of 899.7 from 10 counted races, and holds world rankings in 2 categories. Rankings by World Karting Rankings, updated August 3, 2026.
In the KZ2 world standings, Sem currently sits P12 out of 286 ranked drivers, with a WKR Rating of 899.7 built from 11 counted races — inside the top tenth of the world field.
Beyond the main class, Sem is also classified P77 in Rotax DD2 this season.
Sem’s most recent final in our database was P6 at ACI ValVibrata 2026 R4 on 24 July 2026, with a best recent result of P1 at ACI La Conca 2026 R2.
In the fight for KZ2 positions, Sem trails Arthur Lehouck (P11) by 10.5 rating points and holds a 28.2-point margin over Davide Fore' (P13).
Races this driver has competed in that are in our database and count toward their WKR rank — these are participations, not race results.
Sem Knopjes has 15 counted race participations across 11 events in KZ2, Rotax DD2 recorded in the WKR database. Sem Knopjes currently holds world rank #12 in KZ2 with a WKR Rating of 899.7. Compare with other drivers from Netherlands on the drivers list.
| Date | Race |
|---|---|
| 24 Jul 2026 | ACI ValVibrata 2026 R4 |
| 05 Jul 2026 | 2026 Circuito Internazionale Napoli - Sarno-Napoli |
| 28 Jun 2026 | ACI Sarno 2026 R3 |
| 31 May 2026 | ACI La Conca 2026 R2 |
| 24 May 2026 | 2026 Karting Genk |
| 18 Apr 2026 | WSK Euro Series 2026 Round 2 |
| 22 Mar 2026 | WSK Super Master Series 2026 Round 5 |
| 08 Mar 2026 | WSK Super Master Series 2026 Round 4 |
| 22 Feb 2026 | WSK Super Master Series 2026 Round 3 |
| 08 Feb 2026 | WSK Super Master Series 2026 Round 2 |
| Date | Race |
|---|---|
| 16 Jan 2026 | UAE RMC 2025-26 ROUND 4.1 DK - INTERNATIONAL |