Niels Koolen

Niels Koolen (born 25 May 2001) is a Dutch racing driver. He currently competes in Indy NXT driving the No. 33 for HMD Motorsports. He is the son of rally raid driver and businessman Kees Koolen.

Formula 4
After competing in karting prior to the COVID-19 pandemic, Koolen, a relatively latecomer to single-seater racing aged 21, made his car racing debut in Round 6 of the 2022 F4 Spanish Championship, driving for Monlau Motorsport. He also contested the final two rounds of the 2022 Italian F4 Championship, also with Monlau Motorsport, competing under a Belgian license.

Formula Regional European Championship
Following the 2022 season, Koolen partook in several Formula Regional European Championship tests, driving for Van Amersfoort Racing.

Formula Regional Middle East Championship
On 5 January 2023, it was announced that Koolen would be driving for VAR-Pinnacle Motorsport in the 2023 Formula Regional Middle East Championship.

Racing career summary
† As Koolen was a guest driver, he was ineligible to score points.

Complete F4 Spanish Championship results
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Complete Italian F4 Championship results
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Complete Formula Regional Middle East Championship results
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Complete Formula Regional European Championship results
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Complete Eurocup-3 results
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Indy NXT
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) (Races with L indicate a race lap led) (Races with * indicate most race laps led) * Season still in progress.