[7] Longo attended Epsom Girls' Grammar School and played for their first XI, winning the NZ Secondary Schoolgirls tournament in 2008 with future international teammates Anna Green and Hannah Wall.

[12] She made her first appearance for Victory in their 3–2 win over the Brisbane Roar, playing 74 minutes before getting subbed off in the second half.

[14] In September 2023, Longo returned to the game, signing with New Zealand A-League Women club Wellington Phoenix.

[16][17] She scored New Zealand's first goal at the 2008 inaugural FIFA U-17 Women's World Cup although they were effectively eliminated from contention in the 1–2 loss to Denmark, having previously lost 0–1 to Canada in the opening game.

Longo was again included in the U-20 squad for the 2008 Women's U-20 World Cup finals to be played in Chile, featuring in two of their three group games.

[6] In an interview Longo gave in November 2014, she said she lives in Kaiapoi but also spends half of her week in Auckland for national trainings.