He competes in classification ST[1] and with no arms and an impairment to his right leg has found his own way to becoming one of the best men's compound shooters in the world.

It took him nearly three years at the archery club Cardinal Mercier in Braine-l'Alleud, Belgium, before being able to shoot alone, with his feet in the manner of his idol and example, the American archer Matt Stutzman.

[1][4] Van Montagu is single and lives in Montignies-sur-Sambre, a district of the municipality of Charleroi, located in the province of Hainait, Belgium.

[6] His best result at a World Para Archery Championship was 4th place in the Men's Individual Compound Open at the 2023 World Para Archery Championships in July 2023 in Plzeň, Czech Republic, that also offered Belgium a quota spot for the 2024 Summer Olympics.

En route to the semi-final, Van Montagu eliminated in the round of sixteen his idol and global icon of the sport, Matt Stutzman who had not lost to another armless archer in 13 years.