Vietnam have secured their passage to the semi-finals of the 2026 ASEAN Cup following a decisive 3–1 home victory over Cambodia at My Dinh Stadium in Hanoi on August 7. The result saw the Vietnamese side finish Group A undefeated with 10 points from three wins and one draw, establishing themselves as frontrunners in the tournament ahead of the decisive final group stage matches that determined the remaining semi-final places.

Playing before their home crowd, Vietnam demonstrated tactical superiority from the opening stages, maintaining possession and systematically probing Cambodia's defensive setup through both wings. Coach Kim Sang-sik's side controlled the tempo of the match while Cambodia adopted a more conservative approach, seeking to exploit opportunities on the counter-attack. This strategic contrast set the tone for an engaging contest in which Vietnam's superior technical execution gradually wore down their opponents.

The breakthrough came in the 18th minute when Nguyen Dinh Bac initiated a direct run through the centre of the pitch, penetrating Cambodia's defensive line and firing a low, precise shot across goalkeeper Koy Salim to establish a 1–0 lead. The early goal energised the home team, who pressed their territorial advantage by continuing to create chances while Cambodia retreated deeper to shield their goal. Despite Vietnam's dominance, the first half remained relatively tense, with Cambodia's goalkeeper making important interventions to keep the deficit manageable at the interval.

Cambodia's resilience was tested severely in the second period as Vietnam intensified their attacking intent. Yet the visitors produced a moment of tactical brilliance in the 71st minute when striker Iago Bento latched onto a long clearance, outpaced Vietnamese defender Pham Xuan Manh, and finished clinically to level the match at 1–1. This unexpected equaliser provided Cambodia with genuine hope and momentum, forcing Vietnam to recalibrate their approach during a critical phase of the contest.

The turning point arrived in the 84th minute when Nguyen Xuan Son broke free on goal, and his attempt forced Cambodian defender Im Vakhim into an own goal as he attempted to clear the danger, restoring Vietnam's lead at 2–1. Two minutes into stoppage time, Bac completed his personal brace with a well-executed counter-attacking finish, sealing the 3–1 scoreline and confirming Vietnam's progression with maximum points.

Vietnam's semi-final opponent will emerge from Group B, where Thailand, Malaysia, Myanmar, and the Philippines continue competing. Thailand entered the final matchday with nine points from three consecutive victories, positioning themselves as Group B favourites. Malaysia occupied second place with six points, level with Myanmar, though Malaysia held the superior head-to-head record. The final group stage fixtures on August 8 would determine which two nations would join Vietnam and Singapore in the semi-finals.

Singapore qualified as Group A runners-up following a 1–1 draw against Indonesia, confirming Indonesia's elimination from the tournament despite showing competitive form throughout their group campaign. Singapore's draw preserved their position as the group's second-best performer, securing their semi-final berth through a combination of results across the group stage.

The tournament structure has created compelling narratives across Southeast Asia, with Malaysia's performance holding particular significance for regional readers. The Malaysians' current position alongside Thailand and Myanmar in the Group B mix means that the August 8 fixtures will determine whether Tan Cheng Hoe's side can upset Thailand to secure a semi-final spot, or whether they will exit the competition. A victory over the Philippines combined with potential other results could see Malaysia progress, adding drama to the group stage conclusion.

Vietnam's qualification reflects both their technical superiority within the regional context and their effective utilisation of home advantage at My Dinh Stadium. The Golden Stars have established themselves as serious tournament contenders, their unbeaten record serving as a platform for deeper runs in the competition. Their controlled approach throughout the group stage—winning comfortably without excessive expenditure of energy—positions them well for the knockout phase, where intensity and tactical flexibility become increasingly decisive factors.

The semi-final draw promises compelling matchups given the varying styles exhibited throughout the group stage. Vietnam's methodical control-based football contrasts markedly with Thailand's direct, aggressive approach and Malaysia's tactical flexibility. Singapore's qualification alongside Vietnam suggests that technical proficiency and possession-based football have dominated Group A, whereas Group B appears to favour more varied tactical approaches. These stylistic differences will generate intriguing semi-final encounters that will test which tactical philosophy proves most effective at this stage of the tournament.