Table-topping Pohang Steelers continued their excellent season with a 1-0 win over Seoul at the Steelyard Stadium on Wednesday.
The away side were looking to avoid back-to-back defeats and appeared to be on their way to a hard-earned point before Mu-Yeol Ko's 88th-minute strike.
It was an important goal for Pohang and a sign that they were back on track following Saturday's 2-1 loss to Incheon United.
Ulsan maintained the pressure at the top of the table as they staged a come-from-behind 3-1 victory over Chunnam Dragons.
Robert Cornthwaite fired the away side into a 51st-minute lead after a first half that featured few clear-cut chances.
Their advantage was short-lived, however, as just eight minutes later Sang-Woon Han restored parity.
And Ulsan took the lead in the 67th minute via a Rafinha strike before the Brazilian grabbed his second of the game in second-half injury time.
The result ensured they stayed within two points of the leaders.
Struggling Daejeon Citizen's woes continued as they lost their sixth game in seven matches by going down 3-1 away to Suwon Bluewings, extending their winless run to 12.
Hong Chul opened the scoring in the 25th minute at the Suwon World Cup Stadium and by the 32nd minute they were 3-0 ahead through further efforts from Macedonian Stevica Ristic and Jung-Jin Seo, who grabbed his fifth goal of the season.
Daejeon showed some fighting spirit in the second half courtesy of Joao Paulo's 72nd-minute strike but the result was already beyond doubt, as Suwon moved up to fourth.
Daegu secured a precious three points with a 3-2 success over Gyeongnam at the Daegu Main Stadium.
Il-Soo Hwang got the home side off to the perfect start in the sixth minute, but they were pegged back in the 15th via Milan Bubalo.
But the real drama unfolded in the last 15 minutes of the second half, with three goals in a thrilling climax.
Derek Asamoah put Daegu ahead from the penalty spot in the 76th minute but with three minutes remaining Bubalo's spot-kick looked to have rescued a point for the away side.
However, Soon-Min Hwang's finish in the last minute of normal time wrapped up a dramatic finish.
Elsewhere, Jeonbuk Motors lost out by the odd goal in five at home to Seongnam with the game decided by a controversial incident.
With Seongnam leading 2-1, Jeonbuk accidentally scored when attempting to return the ball after a break for an injury.
Angry scenes ensued after the goal before Eun-Seong Choi sportingly scored an own goal to ensure a 3-2 triumph for Seongnam at the Jeonju World Cup Stadium.
Gangwon and Busan I'Park played out a 2-2 draw.
|Coach: Sun-Hong Hwang|
for Jin-Sung Hwang 59'
for Tae-Su Kim 62'
for Chan-Ho Cho 84'
|Solanke leads Chelsea to All-Stars victory|
|Indonesian Football Association suspended by FIFA|
|Randolph agrees West Ham switch|
|Mancini vows to rebuild Inter|
|Russian Premier League Review: Torpedo Moscow and Arsenal Tula suffer relegation|
|Kane the difference again as Tottenham see off Sydney|
|Garcia proud of resilient Roma|
|Rio Ferdinand retires from football|
|World Cup allocation to remain unchanged, Blatter confirms|
|Blatter defiant after re-election|
|Barkley break to benefit Everton - Jones|
|Bilic proud of Besiktas achievements following his final game in charge|
|Vietto encourages Atletico bid|
|Di Santo in demand, claims agent|
|Arteta: Arsenal harbour high ambitions for next season|
|Wilmots considering Schalke offer|
|McCall: Rangers need a miracle|
|Sporting Kansas City 4 Dallas 0: Nemeth, Zusi destroy 10-man visitors|
|Geferson replaces Marcelo for Copa America|
|PSG captain Silva in doubt for Coupe de France final|
|Valverde: Bilbao to stick to style in Copa final|
|Youngsters promoted to Australia´s squad to face Kyrgyzstan|
|´Another round of indictments´ expected in FIFA case|
|Disappointed FFA, US Soccer still want change|
|Gutierrez: Ashley abandoned me|
|US senator urges Blatter to release Garcia Report|
|Gutierrez, Taylor released by Newcastle|
|Figo calls on re-elected Blatter to resign after ´dark day´ for football|
|Szczesny blasts father over ´idiotic´ comments|
|Blatter vows to leave ´strong´ FIFA|
|Blatter re-elected as FIFA president|
|BREAKING NEWS: FIFA elections set for second round of voting|
|Atsu wings in for Bournemouth campaign|
|Klopp: Pokal final not about me|
|Clement says Real goodbyes|
|Inter v Empoli: Icardi looking for final flourish|
|BREAKING NEWS: Blatter - I will fix FIFA|
|Northern Ireland v Qatar: O´Neill keen to prepare for Romania test|
|Palestine drop proposal for Israel suspension|
|Suarez will only get better, warns Iniesta|
|Martinez keen to recruit quickly|
|Monk keen to build on successful Swansea campaign|
|Fit-again Suarez set to aid Barca´s treble quest|
|Anonymous ´bomb´ threat received at FIFA Congress|
|Qatar organisers insist World Cup bid met ´highest ethical standards´|
|Wilkinson and Sorensen leave Stoke|
|Blatter: You can´t ask everyone to behave ethically just like that|
|Van Bronckhorst positive about Feyenoord future|
|Australian police to look into FFA-Warner dealings|
|Dardai signs Hertha deal|
|Protester interrupts FIFA Congress|
|Spurs complete Wimmer signing|
|Warner questions charges following release|
|Mexico v Guatemala: Herrera´s men kick off Copa preparations|
|New Zealand no longer supporting Blatter|
|´Post-World Cup trauma´ affected Mertesacker|
|Racing Club 0 Guarani 0 (0-1 agg): Draw sees Paraguayans through|
|Hamburg shocked by Karlsruher attack - Labbadia|
|Serie A Preview: Napoli, Lazio eye Champions League|
|Hodgson will not overstay England welcome|
|Scholes: United must keep Di Maria|
|Leyton Orient appoint Hendon|
|Benteke has a buy-out clause - Sherwood|
|US Soccer will support Prince Ali in FIFA election|
|Dynamo disappointed with officials after City friendly abandoned|
|Calls for Suarez appeal gather momentum|
|Eredvisie Review: Vitesse denied by late Uth goal, NAC Breda boost survival hopes|
|Rangers 1 Motherwell 3: McCall´s men facing uphill struggle|
|Hamburg 1 Karlsruher 1: Bundesliga side escape with draw|
|Blatter vows to lead FIFA clear of trouble as corruption scandal rolls on|
|Bundesliga: Bayern Munich season review - League crown not enough to signal successful campaign|
|Genoa forced to wait for UEFA licence|
|Injured Cardozo out of Paraguay squad|
|CONCACAF provisionally dismisses Webb and Li|
|Klopp: Career highlights of a charismatic coach|
|Verona v Juventus: Ogbonna seeks strong Champions League warm-up|
|FA charges Demetriou over betting breaches|
|Atalanta v Milan: Inzaghi faces last chance to prove worth|
|King joins Bournemouth as QPR rebuild begins|
|Plymouth part ways with Sheridan|
|Hernandez banned for three matches|
|Chelsea star Fabregas has nose surgery|
|Blatter: More bad news may follow|
|Galliani hopeful over Ancelotti deal|
|Frontzeck to continue as Hannover coach|
|Tremmel released as Tate waves goodbye to Swansea|
|Arsenal v Aston Villa: Sherwood out to upset holders|
|UEFA open to boycott of World Cup - Platini|
|Porto activate release clause for Casemiro|
|Athletic Bilbao v Barcelona: Catalans seeking second leg of treble|
|Auxerre v Paris Saint-Germain: History beckons for Ligue 1 champions|
|Cole confirms West Ham departure|
|UEFA elect not to boycott FIFA Congress|
|Borussia Dortmund v Wolfsburg: Klopp aiming for triumphant farewell|
|Flamini hails Coquelin impact at Arsenal|
|South Africa deny wrongdoing in World Cup bid|
|Benitez confirms Napoli exit|
|McShane among six released by Hull|
|Cerci committed to Milan|
|West Ham expect Collins to return for pre-season|
|Real deny Pogba bid|
|Important to keep Chelsea squad together - Mourinho|
|Alonso: Gerrard was magic|
|Pochettino silent on Ings speculation|
|Visa threatens to ´reassess´ sponsorship amid FIFA scandal|
|Blatter skips FIFA Medical Conference|
|MLS Preview: Revs not out for revenge against Galaxy|
|MLS Review: Sounders go top in West, Timbers and Galaxy win|
|AFC stands by Blatter|
|Matheus ´alright´ after collapse - Markevych|
|Copa Libertadores Review: River, Inter through to semis|
|Signing Toni a ´long shot´ for Adelaide|
|Ramsey good enough for Barca - Coleman|
|Bacuna pushing for Benteke stay|
|Evans stunner settles City friendly in Toronto|
|Banega: Emery a great coach|
|Emery tight-lipped on Sevilla future|
|Argentina finalise Copa America squad|
|Nike issues statement following arrest of FIFA officials|