The official BeirutMarathon website says she finished in 04:25:34.
Smalley was part of a team of Kiwis running the 42km race through the hot streets of the Lebanese capital as part of World Vision's Forgotten Millions campaign.
New Zealand's Get Running "Beirut" team were also down to visit refugee camps on the border in the days leading up to the run to meet some of the people they were raising money for.
The Forgotten Millions campaign, run by the Herald and World Vision, raised $436,000 for refugees in March.
The campaign was then relaunched in September amid the Syrian refugee crisis in Europe.