Katja Kankaanpää has three losses against three opponents on her MMA record. For a list of Kankaanpää's best fights, refer to "Best fights of Katja Kankaanpää".
On September 12, 2015 Katja Kankaanpää faced off against DeAnna Bennett in a strawweight bout at age 34. She was coming in with a record of 10-3-1 (5), and Bennett was 30 years old and with a record of 7-0 (4). Kankaanpää lost the fight via 3-round unanimous decision.
On April 24, 2015 Katja Kankaanpää met Lívia Renata Souza in a strawweight (Invicta FC Championship) title defense fight. Kankaanpää was 33 years old and with a record of 10-2-1 (5). Kankaanpää lost the fight via 4th-round submission and lost the title.
On December 7, 2013 Katja Kankaanpää faced off against Joanne Calderwood at age 32. She was coming in with a record of 8-1-1 (3). Kankaanpää lost the fight via 3-round unanimous decision.