Colo Colo survived a late flurry from Palestino to win 2-1 on Sunday and claim a four-point lead atop the Chile Primera Division.
Juan Delgado and Esteban Paredes scored for Colo Colo in the opening 20 minutes but a 90th-minute penalty from Palestino's Sergio Lopez ensured the league leaders had a nervous finish.
Sunday's victory took Colo Colo to 22 points after eight rounds with the 29-time Chilean champions still undefeated in the Clausura campaign.
O'Higgins are the only other undefeated club so far this season and sit second on 18 points, while Universidad Catolica are third, just ahead of Deportes Iquique on goal difference (both 16 points).
At Palestino's Estadio Santa Laura, Colo Colo stunned the home side in just the fourth minute with a nice move down the right-hand side, which was finished off by Delgado.
The visitors doubled their lead in the 19th minute thanks to another cross from the right wing, which picked out a charging Paredes and the veteran midfielder headed the ball home.
Palestino worked hard in the second half but first managed to score in the final minute when Lopez was tripped in the area and then converted the subsequent spot-kick himself.
The win was Colo Colo's fifth in a row, while Palestino, who led the Primera Division earlier in the season, have one victory in their past four matches to sit fifth on 14 points.
O'Higgins leapfrogged Catolica into second on Saturday with a 2-0 victory over Universidad.
Pablo Calandria put O'Higgins ahead just past the half-hour mark but the home side were unable to wrap up victory until the first minute of second-half stoppage time when Yerko Opazo scored.
Catolica's hopes of equalising were severely weakened when midfielder Milovan Mirosevic was sent off in the 78th minute.
A hat-trick from Manuel Villalobos saw Deportes Iquique come from two goals down at half-time to win 3-2 at home to Antofagasta, while in another high-scoring encounter; Audax Italiano drew 3-3 with Universidad de Chile.
Santiago Wanderers defeated Union La Calera 1-0, Cobresal trumped Cobreloa 3-0, Everton won 3-1 away to Union Espanola, Huachipato edged out Nublense 1-0 and Rangers were held to a scoreless draw by Universidad Concepcion.
|Coach: E. Astorga|
for N. Suarez 46'
for E. Carvajal 53'
for R. Ramos 69'
|Ba left out of Senegal AFCON squad|
|Redknapp frustrated by penalty call|
|Wenger sees Giroud wrongs|
|Premier League schedule a ´disgrace´, says Poyet|
|Championship Review: Bournemouth stay top, Heskey scores on Bolton debut|
|Hughes lauds Bojan performance|
|Koeman: Saints marching on|
|Pardew rues referee error|
|Arsenal 2 QPR 1: Sublime Alexis secures the spoils|
|Martinez questions Walters decision|
|Poyet laments Sunderland mistakes|
|League One Review: Swindon cruise to win over Walsall|
|Irvine aware of need for improvement|
|United still doing ´very bad things´ - Van Gaal|
|Lambert proud of players despite Swansea defeat|
|Warnock bemoans Palace defence|
|Bruce hails Hull´s spirit|
|Pochettino relieved to come away with victory|
|Dyche: We had our pocket pinched|
|Monk hails Fabianski performance|
|Pearson demands greater concentration from Leicester|
|Kompany set for City return|
|Rodgers hails character after battling win|
|League Two Review: Ainsworth frustrated by Luton, Shrewsbury go top|
|Everton 0 Stoke City 1: Lacklustre Everton slip to defeat|
|Sunderland 1 Hull City 3: Triumphant return for Bruce|
|Burnley 0 Liverpool 1: Sterling wins it at Turf Moor|
|Leicester City 1 Tottenham 2: Eriksen piles misery on Pearson´s men|
|Manchester United 3 Newcastle United 1: Rooney extends hosts´ streak|
|West Brom 1 Manchester City 3: Three and easy for in-form champions|
|Swansea City 1 Aston Villa 0: Hosts break Boxing Day duck|
|Crystal Palace 1 Southampton 3: Mane marks return with star performance|
|Allardyce upbeat despite defeat|
|Van Dijk happy at Celtic - Deila|
|Table-topping Chelsea delight Mourinho|
|Chelsea 2 West Ham 0: Mourinho´s men ease to victory|
|Suarez enjoying Messi, Neymar link-up|
|A-League Review: Garcia rescues point for Perth, Adelaide up to second|
|Poyet calls for mid-season break|
|Van Gaal rules out Januzaj move|
|Rodgers: Balotelli may have to get used to bench|
|Lallana: I was trying too hard|
|Walker juggles music, football careers in Sweden|
|Song to face ´brother from another mother´ Fabregas|
|Adriano announces Le Havre deal|
|Pardew braced for Old Trafford test|
|Lescott unfazed by City reunion|
|Tskhadadze appointed Georgia coach|
|United to finish top three - Ferdinand|
|Allardyce: Stamford Bridge stalemate saved my job|
|Southampton need three January signings, says Watson|
|Liverpool can make Champions League, says fanzine editor|
|Walsh: Hull clash crucial for Leicester|
|Toure, Aubameyang and Enyeama make shortlist for African gong|
|Docherty backs Chelsea to win two-horse race|
|Liverpool could benefit from Hyypia influence - Scales|
|Saudi Arabia name Asian Cup squad|
|Forty-year-old Cahill no problem for Postecoglou|