[6] Thailand appeared in the 1956 Summer Olympics in Melbourne, where their lost to Great Britain 0–9, was the largest to that point, thus failing to advance to the quarter-finals.

They made their second and latest appearance at the Summer Olympics in 1968, losing all three matches by at least 3 goals margin to Bulgaria, Guatemala, and Czechoslovakia hence en route to a first-round exit.

The team's performance at the final tournament was drawing first two matches with Qatar and eventual 3rd place China then losing 0–4 to Saudi Arabia.

[9] The regional 1998 AFF Championship saw Thailand met Indonesia in a match that ill-hearted players from both team deliberately making actions aimed to avoid facing hosts Vietnam in the semi-finals and undergoing technical burden of moving training bases from Ho Chi Minh City to Hanoi.

Thailand consecutively qualified to and participated in two AFC Asian Cup final tournaments both held within Western Asia in 1996 and 2000 when their "dream team" was beginning its golden period.

Coincidentally in both editions, the team's opponents all came from Western Asia and they are Saudi Arabia, Lebanon, Iran and Iraq, with the latter two share the same group with Thailand twice.

[11] The final 2000 AFF Championship match between Thailand and Indonesia, at a sold-out Rajamangala, was almost a carbon copy of their group stage encounter.

The sign of improvement only came in the 2007 AFC Asian Cup when Thailand participated as a well-prepared co-host and was placed with the debutant Australia, Oman, and Iraq.

In preparations for the 2010 AFF Championship, Robson led Thailand to victorious run against Singapore and Bob Houghton's India in a series of friendlies.

However, when entering the tournament in December, he failed to bring Thailand past group A after managing only draws against Laos and Malaysia and losing to Indonesia.

In the 2015 Asian Cup qualification, Thailand showed a setback with its defensive frailties exposed by Middle Eastern rivals (Iran, Kuwait, Lebanon) when losing all 6 games in the qualifiers, conceding 21 goals in the process.

[19] In 2014, Thailand ended a 12-year drought of the AFF Championship title from the late goals by Charyl Chappuis and Chanathip Songkrasin which gave them a dramatic 4–3 aggregate victory over Malaysia in the second leg of the finals at Bukit Jalil.

[21][22] Teerasil Dangda, Thailand's renowned striker, rejoined the rank of the national team after his loan with UD Almería ended earlier.

Drawn in Group F along with Chinese Taipei, Iraq and Vietnam, who Thailand played its first match home against on 24 May and can only be won by a victory goal from a shot 20 yards away.

[23] In the last round, Kiatisuk's men shared the same group with Australia, Japan, Saudi Arabia, UAE along with previous opponent, Iraq.

[24] After the elimination from World Cup qualifiers, Kiatisuk resigned and Thailand appointed Milovan Rajevac as a coach, thus marked the first non-Brazilian/German/English team's chief.

Sirisak guided Thailand to a 1–0 win over Bahrain and a 1–1 draw with the host UAE, enough to move on to the knockout stage of the AFC Asian Cup for the first time in 47 years.

The team was drawn into group G of the second round of 2022 FIFA World Cup qualification with other three Southeast Asian rivals: Vietnam, Malaysia, Indonesia; along with United Arab Emirates.

Despite defeating Indonesia 3–0 and UAE 2–1, Thailand failed to revenge Vietnam when getting goalless draws in both legs, while losing Malaysia 1–2 in Bukit Jalil.

However, the team suffered a huge loss of key players when Chanathip Songkrasin was injured, while Teerasil Dangda and Theerathon Bunmathan refused to participate the qualification due to various reasons.

[26] On 28 September 2021, Brazilian Alexandré Pölking was appointed as the head coach of the Thailand national team, replacing Akira Nishino.

After a hurried attempt, Japanese manager Masatada Ishii was announced as Thailand's temporarily new head coach, with a contract lasted until the end of the 2023 AFC Asian Cup as he faced a daunting prospect of reviving the lacklustre Thai side to reach continental level.

[34] However, Thailand failed to end their miserable knockout stage record in the Asian Cup, losing 2–1 to Uzbekistan in the round of 16 to equal their 2019 result.

The 2026 FIFA World Cup qualification saw Thailand drawn in group C against South Korea, China and Singapore, with the target to be winning the second place to advance to the final round.

[36][37][38] This home loss ultimately sealed Pölking's fate, despite a 3–1 away victory over Singapore which moved Thailand up to second place; with the Brazilian sacked for failing to meet expectations.

When Myanmar was still a football power, it was Thailand's first-ever rival, owned by the history of the Burmese–Siamese wars which led to a nationalist fervor among Thai fans with its desire to beat the Burmese.

[55] But with Myanmar weakened following the reign of Ne Win and junta, Thailand improved and since 1983, holds an undefeated streak over its western rival.