Invicta FC 29: Kaufman vs. Lehner was a mixed martial arts event headlined by Sarah Kaufman vs. Katharina Lehner fighting for the vacant bantamweight championship. Lisa Spangler was set to fight Yaya Rincon but the week of the event, Rincon pulled out of the bout and was replaced by Sarah Kleczka. 19 year old Croatian prospect Adriana Vukovic was scheduled to make her debut at this event but an opponent was not found for her, pushing her debut back to a future event.