Stoltz was born in Nelspruit, Mpumalanga before shifting with her family to Rustenburg, North West.
She has played netball for the past seventeen years and attended Hoërskool Rustenburg.
She also participated in the Brutal Fruit Netball Cup for the North West Flames and represented her university in the local varsity championship.
[1] She also played for Loughborough Lightning in the British Fast5 All Stars Netball Championship whereby she sank a last-minute five pointer in the grand final against Team Bath to earn the championship title as well as earned the player of the series award.
[2] She also got selected to represent South Africa in the 2017 Fast5 Netball World Series in Australia.