Lowans' best first-class season was his first, 1959–60, when he made 395 runs at 35.90.

[1] He scored his only century the next season when he made 100 against Canterbury.

[2] Lowans was a stalwart for Nelson in the Hawke Cup, forming an opening partnership with his Central Districts partner Lawrie Reade during Nelson's hold on the title between 1958 and 1965.

He played in 39 Hawke Cup challenge and elimination matches, scoring 2120 runs at 37.19 and hitting four centuries.

[5] He also represented Nelson at association football and badminton.