Kiddle received her education at Wellington Girls' College, and she took up rowing in 2008 in her final year.

[2] Kiddle's first appearance at a FISA event was at the 2014 World Rowing U23 Championships in Varese, Italy, where she came fourth in the lightweight single sculls.

[4] At the 2016 World Rowing U23 Championships at the Willem-Alexander Baan in Rotterdam, Netherlands, she won a silver medal lightweight double sculls with Lucy Jonas.

[5] At the 2017 World Rowing Championships in Sarasota, Florida, she won a silver medal in the lightweight double sculls partnered with Zoe McBride.

[6] At the 2018 World Rowing Championships in Plovdiv, Bulgaria, McBride and Kiddle came sixth in the lightweight double sculls.