Martins, RuteMonteiro, PatríciaCampos, Ana CláudiaSthapit, EroseMascarenhas, Margarida2026-05-122026-05-122025-08-142752-6666http://hdl.handle.net/10400.1/28936Purpose – On-site tourist experience co-creation enhances memorability, and the latter precedes tourists’ intention to revisit and recommend the experience/destination to others. However, tourists’ interaction is not always perceived as positive, co-destroying experience value. This study aims to examine the influence of experience value co-destruction on sport tourists’ future behavioral intentions, considering the mediating effects of internal attention, involvement and memorability. Design/methodology/approach – Data were gathered from 254 non-resident spectators at Tudor Nazare´ Tow Surfing Challenge event in Portugal. Findings – The results showed that value co-destruction during a sport tourism experience negatively influences spectators’ internal attention and involvement, which further impacts their memorability and behavioral intentions. Practical implications – Sport event managers should minimize and reverse negative sport tourists’ interactions to enhance the spectators’ attention and involvement in the experience. In addition, to boost the memorability and behavioral intentions, spectators’ involvement should be prioritized through leveraging sport culture and event-generated liminality. Originality/value – This study expanded the research lens of co-destruction of tourist experience value by integrating cognitive psychology and behavioral outcomes, validating the on-site tourist experience co-creation model to co-destruction and extending it to behavioral intentions.engBehavioral intentionsCognitive psychologyCustomer-dominant logicMemorabilityPort tourism experienceValue co-destructionjournal article10.1108/cbth-09-2024-03062752-6674