Chadchart won an outright majority—over 1 million votes more than the second leading candidate, Suchatvee Suwansawat, who contested for the Democrat Party.

[11] Chadchart Sittipunt, the former Minister of Transport during Yingluck Shinawatra's government, and Rosana Tositrakul, a former senator, have announced their plans to run for Governor of Bangkok since 2019.

She also campaigned to encourage the use of more solar panels, designating land for lower-income Bangkokians to do organic farming, and revising city planning and zoning regulations to lessen benefits given to major corporations.

[22][23] Aswin Kwanmuang campaigned about flood-prevention measures, solving the issue of there not being enough designated green areas, connect different modes of public transport, and promised to continue the work he had previously done as the incumbent governor of Bangkok.

[29] Examples include Suthep Thaugsuban, former Deputy Prime Minister, who said that people should elect Sakoltee instead of Chadchart because the latter "received benefits from Thaksinocracy."

Major General Nanthadech Mechsawasd, former head of the Special Operations branch of the Armed Force Security Center made a post on Facebook, calling for people who dislike Thaksin Shinawatra to elect Sakoltee and outvote Chadchart.

[30] In the last days before the election, Rosana used the same method, and said that people who are loyal to King Bhumibol's guidance would never vote for a corrupt person to be in public office.

Meanwhile, Permanent Secretary to the BMA and Director of Bangkok Local Elections later clarified that pens of colours other than blue can be used as long as it can be clearly seen on the ballot.

[5] Workpoint Today analysed that Chadchart's landslide victory came from several factors, including that he ran as an independent, his policies during his tenure as Minister of Transportation which were sabotaged, a clear vision, his follower number on Facebook which was higher than any other candidate, and that he took two years to prepare for the election.

Director of the Office of Innovations for Democracy, King Prajadhipok's Institute Satithorn Thananithichoti opined that people elected Chadchart because they didn't want to see massive change, only the effective administration of the capital such as collecting garbage on time or designating more green areas.

[36] Anusorn Thamjai of the Pridi Banomyong International College, Thammasat University, proposed the idea that this election showed the far-right, anti-democracy groups were weakening in numbers and were not popular within the younger population.

[37] Thitinan Pongsuttirak said that this election is symbolic of the people's dissatisfaction with the government's failures and a country that has been under military rule for so long.

[42] Prime Minister Prayut Chan-o-cha said that the election was only for one province and couldn't accurately reflect his or his government's popularity nationwide.