"For watching Muay Thai, I consider Lumpinee Stadium the best spot in Bangkok: the new stadium (opened in 2014) holds up to 15,000 spectators, fight nights are typically Tuesday, Friday, and Saturday at 6pm with around 7–9 fights per night, matches last about 25 minutes unless there’s a knockout, and tickets start around 1,600 THB; there are also plenty of food hawkers so you can grab a bite while watching." - Matthew Kepnes