I entered on a 2 month tourist visa, extended for a month, then went on visa run to Cambodia and then extended again for one month. I understand that you are only allowed one further land entry. Does this rule only apply to same day border runs or does it include obtaining a non imm o at a neighbouring country if you travel by bus?

 

 

It refers specifically to visa exempt entry by land. You are only allowed two of these per calendar year, and the length of time out of Thailand is irrelevant. If entering by land with any kind of visa issued at a consulate (including a tourist visa) there is no limit. If trying for a visa exemption by air, there is no hard limit, but immigration officials at airports will deny you visa exempt entry if, in their view, you are using visa exempt entry to stay longer than is compatible with regular tourism. How strict the officials are on this varies from airport to airport.