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'
|New deals for Moore, Schlupp|
|Litex Lovech 3 Veris 0 (3-0 agg): Bulgarians through to second round|
|Valencia loan Fede to Cordoba|
|Stoke closing in on Bojan|
|Inter still hopeful of Jovetic capture|
|Finalists dominate Golden Ball nominees|
|Celtic end Austria tour unbeaten|
|Rizzoli appointed World Cup final referee|
|Oier joins Granada|
|Escriba extends Elche agreement|
|Newcastle have agreement for Cabella, says Nicollin|
|Scolari: We have to move on|
|Roma complete Emanuelson deal|
|Alex pledges to improve Milan|
|Di Maria doing everything he can, says agent|
|Villa give Richardson a Premier League return|
|Sabella ´to step down´ after World Cup final|
|Van Gaal eyes ´unbeaten´ campaign|
|Suarez to take case to CAS|
|Germany have same spirit as in 1990, says Beckenbauer|
|´Quite clear Suarez wanted to leave´ - Liverpool fanzine|
|Southampton closing in on Pelle deal - Koeman|
|Suarez, Ronaldo, Bale and more: The Premier League talent drain|
|Augsburg capture Caiuby|
|Gerrard lauds departing Suarez|
|Andrade delighted at Benfica return|
|No Bony talks with Liverpool - Swansea|
|Lahm: Experience will be key|
|FIFA World Cup Preview: Brazil v Netherlands|
|Suarez departs Liverpool with ´heavy heart´|
|Liverpool did everything to keep Suarez - Rodgers|
|Suarez to sign for Barca|
|Boyce: Referees not told to be lenient|
|Sanchez reveals Wenger admiration|
|Flick staying secretive on Messi plans|
|Determined Dyche aims to complete more deals|
|Matri joins Genoa on loan|
|Valderrama talks up James potential|
|Aguero: Argentina are World Cup underdogs|
|Everton in talks over Traore return|
|Lambert tipped to prise open defences|
|Thauvin hails Bielsa impact at Marseille|
|Zico: Time for Scolari to go|
|Klopp eager for defensive improvement|
|Arsenal to run the rule over Fathi|
|Chamakh signs news Palace deal|
|Neville set to learn United fate|
|Fiorentina swoop for Brillante|
|Navas set to join Bayern|
|Neymar rejects agent´s anti-Scolari Twitter tirade|
|Allegri undecided on Italy job|
|Fernando idolises City team-mate Toure|
|Arteta: FA Cup will inspire Arsenal´s Premier League tilt|
|Evergrande confirm Gilardino signing|
|Howedes calls for team effort to stop Messi|
|Kuyt: Van Gaal can succeed at United|
|Argentina fined for player no-show|
|Neymar: ´I could be in a wheelchair´|
|Mascherano: I tackled doubts to block Robben|
|Zaccheroni: I leave Japan in a good spot|
|Aguero: Argentina ready to give everything|
|UEFA Europa League Review: Gothenburg leave it late, Sillamae stun Honka|
|Klose lauds Ronaldo after scooping record|
|Iran refute Susic claims|
|Fernandez named Deportivo boss|
|Argentina have no chance, says Robben|
|Hierro to replace Zidane as Real first-team coach|
|Rhodes signs new Rovers deal|
|Arsenal complete Sanchez swoop|
|Inzaghi backs under-fire Balotelli|
|Defeat has overshadowed display - Vlaar|
|Maradona: Germany full of themselves|
|Barry hoping for England recall|
|Green extends QPR stay|
|Shanghai Shenhua 1 Guangzhou Evergrande 2: Rong leaves it late in dramatic win|
|Germany hope for Brazilian support|
|Torino striker Cerci in demand|
|FIFA critcised following Mascherano incident|
|Bernat happy at Bayern despite bad memories|
|Giggs backs Van Gaal to thrive at Old Trafford|
|Tadic can fill Lallana void - Koeman|
|New five-year deal for Nasri|
|Barcelona release injury-hit Cuenca|
|Suarez appeal rejected|
|La Decima a reflection of Di Stefano - Perez|
|Buoyant Mazzarri eager for Inter success|
|Mandzukic joins Atletico|
|Van Gaal criticises third-place play-off|
|Halilhodzic yet to decide future|
|Mandzukic eager for Simeone link-up|
|Davies hoping for Hull deal|
|Poyet hopeful over Altidore fitness|
|Diego close to ´dream´ Fenerbahce move|
|Inter loan out youngsters|
|Fired-up Cole can inspire Villa, claims Lambert|
|Hughes hailed for winning over Brit doubters|
|Hajrovic signs for Bremen|
|Hull can buck Europa League trend, says Meyler|
|Mertesacker talks up German chances|
|Swansea reveal Tottenham contact over Davies, Sigurdsson|
|Lloris pens five-year deal at Tottenham|
|Fernandinho: ´The pain is big´|
|MLS Preview: Portland aim for swift revenge against Seattle|
|Sabella: Germany have an advantage|
|Second Argentine journalist dies in Brazil|
|Aguero: Argentina defied critics|
|Impressive Mascherano thrilled with final´s berth|
|Zuniga offered protection by Colombia|
|Germany vowed not to ´humiliate´ Brazil|
|Hong resigns from South Korea post|
|Third-choice Vlaar ´wasn´t nervous´|
|Van Gaal: I wanted Krul in the shootout|
|Argentina: Key factors in reaching the final|
|Sabella revels in semi-final win|
|Proud Robben feels pain of World Cup exit|
|FIFA World Cup: Netherlands 0 Argentina 0 (after extra time, 2-4 on penalties)|
|Susic signs two-year extension with Bosnia-Herzegovina|