Known for his long-hitting, Neinaber turned professional aged 19 as South Africa's top ranked amateur golfer after winning the 2019 South African Amateur Championship.

The teenager made his European Tour debut as an amateur at the South African Open hosted by the City of Johannesburg where he opened with two rounds of 69 to make the cut.

Won his first professional title in 2021 at the Dimension Data Pro-Am, co-sanctioned by the Challenge Tour and Sunshine Tour.