Menno Koolhaas, a notable Dutch triathlete born in 1995. Hi s first break through race result can be traced back to when he claimed victory at Ironman 70.3 Cascais with a remarkable half-marathon run time of 1 hour, 10 minutes, and 54 seconds​​. Additionally, Koolhaas made a standout performance at the Challenge Almere-Amsterdam in 2023, setting a new course record with a time of 7 hours, 36 minutes, and 36 seconds. This outstanding achievement at Challenge Almere-Amsterdam also earned him the title of European Champion Long Distance, marking him as the Dutch Long Distance Record holder.