What is ESPN BET? How do you use it? Where is it legal?ĮSPN BET is a newly-branded online sportsbook operated by PENN Entertainment that combines ESPN's industry-leading brand and multiplatform reach with PENN Entertainment's proprietary in-house technology and deep sportsbook operational expertise. You have reached a degraded version of because you're using an unsupported version of Internet Explorer.įor a complete experience, please upgrade or use a supported browser