This chapter examines the evolution of sports betting as a new frontier of behavioral addiction, tracing a historical overview that extends from ancient civilizations to the contemporary digital era, characterized by technological innovations and a wide array of betting modalities. It presents data on the global prevalence of gambling involvement, highlighting statistics and epidemiological data that describe the associated impacts of gambling-related disorders. The updated diagnostic criteria in ICD-11 and DSM-5-TR are reviewed, providing a detailed understanding of the characteristics of these disorders. The text explores vulnerability factors, including genetic, physiological, and temperamental dimensions, and discusses the neurobiology and cognitive aspects that shape choice behavior, emphasizing the interaction between the prefrontal cortex and brain areas associated with the processing of emotions and rewards. Additionally, it examines the sociocultural and economic contexts influencing gambling involvement, along with frequently observed psychiatric comorbidities. The chapter also addresses case assessment and formulation and presents principles and applications of cognitive and behavioral approaches, describing theoretical models, techniques, and practical examples that demonstrate effective interventions. Thus, the chapter offers a comprehensive understanding of the complexities involved in gambling behavior, underscoring the importance of multidimensional strategies for treating disorders related to hazardous gambling and sports betting.