INTRODUCTION & AIMS Individuals diagnosed with cancer experience significant physical and psychosocial consequences from oncological treatment. Based on current research, exercise therapy may be a valuable non-pharmacological approach to improve health-related quality of life (HRQoL). However, the effectiveness of individually tailored exercise programs to improve quality of life in real-world settings is understudied. The current study aims to analyse preliminary clinical data regarding the impact of tailored exercise supervised within an Australian private day hospital (LIFT) on HRQoL in individuals diagnosed with cancer. METHODS A retrospective longitudinal cohort study was conducted on adults diagnosed with cancer who attended the LIFT clinical service for at least 12 months between 2020 and 2023. QoL and symptoms were assessed using the Functional Assessment of Cancer Treatment – General Questionnaire (FACT-G). Data collected included diagnosis (type and stage), medical treatment, session frequency, and demographic data. RESULTS Overall, 40 patients (age=67.0±16.8 years) met the inclusion criteria. A within-group analysis demonstrated significant findings in the subscales of emotional wellbeing (p = 0.008) and functional wellbeing (p = 0.003), and significance was also found in the total FACT-G score (p = 0.0019). Interestingly, while not statistically significant, a clinically significant difference in HRQoL was found between individuals completing ≤1 or ≥ 2 supervised exercise sessions per week at LIFT cancer care centre, favouring those completing ≥ 2 sessions. CONCLUSION Preliminary analysis indicated that a “real-world” individualised supervised moderate-vigorous exercise within a day hospital has the potential to significantly improve HRQoL outcomes in individuals diagnosed with cancer.