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'
|Corinthians dreaming of Drogba - Paulo Roberto|
|Coutinho calls for Liverpool focus|
|Chiellini compares Pogba to LeBron and Bolt|
|Maradona to become Napoli ambassador|
|Mihajlovic furious after Torino collapse|
|Icardi has offers from China - Wanda Nara|
|Pogba can cope with pressure - Ibrahimovic|
|´My half-time words will stay in the dressing room´ - Montella annoyed with AC Milan|
|Juventus unveil dramatic change to club logo - but not everyone´s a fan|
|´I do not think I will return to coaching´ - Van Gaal set to call it quits|
|Torino 2 AC Milan 2: Bacca caps thrilling comeback as hosts pay the penalty|
|DR Congo 1 Morocco 0: Kabananga pounces on blunder to give 10 men the points|
|´Happy and comfortable´ Sanchez dismisses Arsenal exit talk|
|How much?! West Ham flop Simone Zaza could cost Valencia €20m|
|Mali v Egypt: Salah leads Pharaohs´ bid for AFCON glory|
|Sevilla concede they ´cannot force´ sporting director Monchi to stay|
|Ivory Coast 0 Togo 0: Reigning champions held to opening draw by Adebayor and co.|
|Goalkeeping woes, Stones and tactical confusion - How Guardiola is making life difficult for himself|
|Ozil and Sanchez can be persuaded to stay - Cech|
|Pogba: I rejected Barcelona and Real Madrid|
|Ghana v Uganda: Gyan dreams of first trophy since 1982|
|Chiellini: Juventus a work in progress|
|Robben agrees Bayern renewal until 2018|
|Hazard: Goals do not matter to me|
|Bennell pleads not guilty to eight child sex offences|
|Muller fed up with debate over Bayern role|
|Wenger glad Sanchez is not ´a Costa problem´|
|Flick resigns as DFB´s sporting director|
|Gomis ´can´t wait´ to welcome Payet to Marseille|
|Chinese FA changes foreign player rules after ´irrational´ spending|
|Like father, like son: Justin Kluivert follows in dad´s footsteps|
|´No reason to lose him´ - Marotta rubbishes talk of Allegri exit|
|Courtois: We don´t need Costa|
|Kane: Tottenham players won´t go to China|
|Noble ´angry and disappointed´ with Payet|
|Klopp furious over Matip uncertainty|
|Wenger surprised by tight Premier League|
|´Money is not everything´ - Conte issues warning amid China speculation|
|Fiorentina defeat a ´bad setback´ - Allegri|
|´This will elevate this group of players´ - Sampaoli revels in Sevilla late show|
|WATCH: Rio Ferdinand screams and dances in crazy Man Utd celebration|
|Real Madrid relaxed, admits Zidane after Sevilla defeat|
|Monaco go top of Ligue 1 with stunning Marseille victory|
|Ronaldo equals LaLiga penalty record as Real Madrid lose|
|Sevilla 2 Real Madrid 1: Stunning late comeback ends unbeaten run at 40|
|Fiorentina 2 Juventus 1: Brilliant Viola breathe life into Serie A title race|
|Tunisia 0 Senegal 2: Mane on target as favourites start strongly|
|Mourinho explains Klopp confrontation|
|Klopp delights in Alexander-Arnold display|
|Algeria must cut out mistakes against Tunisia - Leekens|
|Long balls led to Man Utd equaliser, says Klopp|
|´We attacked, Liverpool defended´ – Mourinho insists a point flattered Klopp´s men|
|DR Congo v Morocco: ´Confidence´ the Atlas Lions´ biggest hindrance ahead of AFCON opener|
|Ibrahimovic: Direct tactics worked for United|
|Guardiola rues gap to Chelsea after Goodison mauling|
|Algeria 2 Zimbabwe 2: Mahrez double prevents shock defeat|
|Manchester United 1 Liverpool 1: In-form Ibrahimovic saves hosts|
|Ivory Coast v Togo: AFCON champions hope to tame Le Roy´s ´troublemakers´|
|Guardiola lays City´s mental frailties bare after Goodison rout|
|Koeman hails ´perfect´ Everton after City mauling|
|Nice stalemate gives Monaco chance to go top|
|Guardiola suffers heaviest league loss in Everton thrashing|
|Neymar-esque Zaha is England´s loss – Bolasie|
|Everton 4 Manchester City 0: Koeman leaves old pal Guardiola´s title bid in tatters|
|Matip withdrawn from Liverpool selection over eligibility questions|
|Podolski staying at Galatasaray, insists sporting director|
|Cavani wants PSG stay|
|Torino move feels normal now – Hart|
|Chinese FA changes rule on CSL foreign players - reports|
|Bayern complete swoop for Hoffenheim duo Sule and Rudy|
|Aubameyang: Dortmund not really like Barca, Madrid or Bayern|
|Pogba can chance a game in one second - Herrera|
|Newcastle Jets 2 Perth Glory 2: Keogh´s eighth of season seals draw|
|Klopp: Liverpool ready for Old Trafford test|
|Herrera taunts Liverpool ahead of Old Trafford showdown|
|I had to be 100 per cent to stay at Boca - Tevez|
|No player is bigger than the club - Carroll takes swipe at want-away Payet|
|Icardi: I can always move to China at end of career|
|Mkhitaryan: Klopp convinced me not to join Liverpool|
|Mourinho: Pogba can score every game|
|Cameroon´s profligacy frustrates Broos|