The answer is yes, Lumphini Boxing Stadium in Bangkok has fights every night, list price is 2000 baht which is very expensive but have a chat with the blokes out the front selling tickets and they will often drop to 1800 baht. make sure you check the card before buying your ticket, some nights they have 15 year old kids fighting, then the next night they have a championship bout, and it’s all the same price.

Bouts are held on Tuesdays and Fridays at 6.00 pm, and twice on Saturdays at 5.00 pm and 8.30 pm.

It’s easy to tell when a fight is in progress by the hundreds of motorcycles parked outside on the road.

Here is a link for directions: http://maps.google.com/maps?hl=en&rlz=1B3GGGL_enUS253US253&q=Lumpini+Boxing+stadium+Rama+IV+Road,+Bangkok+&um=1&ie=UTF-8&sa=N&tab=wl

cheers