Binder grew up in an automotive family embedded in motorsport history. His family runs Binderholz, a major Austrian solid wood products manufacturer. He began karting in 2002 and competed in the category until 2008, finishing third in the German Junior Kart Championship in 2007 and runner-up in the German Challenger Kart Championship in 2008.
Binder launched his single-seater career in the ADAC Formel Masters in 2009 with Abt Sportsline, finishing seventh while his teammate Daniel Abt won the title. He then moved to the German Formula Three Championship, progressing through Motopark Academy, Jo Zeller Racing, and Van Amersfoort Racing between 2010 and 2012.
His GP2 Series debut came mid-2012 at Spa-Francorchamps, replacing Giancarlo Serenelli at Lazarus. A full GP2 campaign followed in 2013, with a season-best sixth at Monaco. He remained in GP2 through 2015, cycling through Arden International, Trident Racing, and MP Motorsport with modest points finishes.
In 2016 Binder shifted to the rebranded Formula V8 3.5 Series with the Charouz-run Lotus team. His results improved notably: five podiums in 2016 earned him seventh in the standings, and in 2017 he won both races at Monza, took pole and victory at Austin, and won the final race of the season in Bahrain. He temporarily led the championship that year and finished fourth overall, level on points with Roy Nissany but ahead on wins. At the end of 2017, he tested a rebadged Lotus E20 with Renault Sport F1 at Paul Ricard.
In 2018, Binder joined Juncos Racing for six IndyCar Series rounds in the No. 32 car, recording two top-twenty finishes and ending 28th in the standings. The experiment offered a transatlantic foothold before he committed more fully to endurance racing.
Binder's sportscar career began in 2018 with an LMP1 outing for ByKolles Racing at the 6 Hours of Silverstone, where a spin in full-course-yellow conditions ended his race early.
In 2019 he joined Panis Barthez Competition in LMP2 for the European Le Mans Series alongside Will Stevens and Julien Canal. The 2020 season brought a move to Inter Europol Competition, sharing with Matevos Isaakyan and Jakub Smiechowski for a twelfth-place team result.
The 2021 Asian Le Mans Series proved a breakthrough. Partnering Yifei Ye and Ferdinand Habsburg at G-Drive Racing run by Algarve Pro, Binder's crew won the opening round in Dubai through a well-timed pit stop under full-course yellow, repeated the feat the following day, and ultimately claimed the series title. In the 2021 ELMS he joined Duqueine Team alongside Tristan Gommendy and Memo Rojas, finishing second at Spa and fifth overall.
The 2022 FIA World Endurance Championship season brought Binder his most celebrated result. Originally set to join G-Drive alongside Daniil Kvyat, the Russian invasion of Ukraine forced the withdrawal of the team and Binder and James Allen regrouped under the Algarve Pro Racing banner alongside silver-rated Steven Thomas. In the LMP2 Pro-Am class, the trio claimed a class victory at the 24 Hours of Le Mans and another class win at Monza. Algarve Pro finished second in the Pro-Am classification for the season.
Upgraded to gold rating in 2023, Binder returned to ELMS with Duqueine alongside Neel Jani and Nico Pino. The season opened with a class win at Barcelona. At Le Mans in July, Binder, Jani, and Pino finished third overall despite suffering broken suspension on the final corner of the final lap. A WEC rookie test at season's end saw him drive a Porsche 963 with Proton Competition.
Binder joined Proton for the 2024 ELMS season alongside Bent Viscaal and Giorgio Roda, taking a second-place result at Le Castellet.
Binder's trajectory illustrates a common transition among well-funded single-seater prospects who find a more sustainable competitive level in endurance racing. His 2022 Le Mans class win alongside a team forced together by geopolitical circumstance stands as the defining moment of his career to date, underscoring adaptability under pressure. His family motorsport lineage — from uncle Hans Binder's Formula One tenure to his father's racing career — gives him one of the deeper roots in Austrian racing history.