Can I do a border run from Chiang Mai for another 30 days after two visa exemptions?

The user is currently in Chiang Mai with two 30-day visa exemption stamps and is considering a border run to extend their stay in Thailand. They are inquiring about the possibility of doing a border run to places like Chiang Rai or Chiang Khong, particularly if they need to apply for a tourist visa in Vientiane instead. Comments indicate that if the user has not already done two border entries in the current calendar year, they may be eligible for another entry, but they should also consider applying for a 30-day extension before proceeding.