Knapp turned professional in 2016. He played on PGA Tour Canada from 2016 to 2019 and again in 2022, winning three times. He played on the Korn Ferry Tour in 2020, 2021, and 2023. He earned his 2024 PGA Tour card by finishing 13th on the Korn Ferry Tour points list in 2023.[5]
In February 2024, Knapp won the Mexican Open for his first PGA Tour victory. Knapp hit just two fairways in the final round, becoming the first PGA Tour player since 1983 to hit two or fewer fairways in his final round and win.[6][7]
At the Cognizant Classic in February 2025, Knapp shot a 59 in the first round, which was just the 15th sub-60 round in PGA Tour history.[8]
Personal life
Knapp worked as a bouncer after losing his full time status on the Korn Ferry Tour.[9]
On September 26, 2025, Knapp's girlfriend Makena White died.[10]