Promoted club Los Caimanes registered their first win of the Peruvian Primera Division season on Sunday to rise from the bottom of the table.
Los Caimanes won the Segunda Division in 2013 to gain promotion to the Primera but had to wait until their ninth game of the campaign to earn their maiden victory, coming from behind to defeat San Simon 4-2.
Roberto Jimenez struck a hat-trick for Los Caimanes, including a pair of penalties, as the Chiclayo-based club leapfrogged Sport Huancayo in the standings.
In the other Sunday match, Inti Gas moved into top spot with a 2-0 victory over reigning champions Universitario.
Inti Gas rose to 18 points, one ahead of Juan Aurich, Cesar Vallejo and Melgar.
At the Estadio 25 de Noviembre, San Simon took the lead in front of their home fans in the 14th minute, when Diego Chavarri thrashed the ball into the net from 20 yards after his initial free-kick bounced back off the defensive wall.
Jimenez equalised for Los Caimanes in the 33rd minute with a spot-kick, while the visitors took the lead in first-half stoppage time when Angel Ojeda thumped a 25-yard drive past Federico Nicosia.
In a frantic finish to the match, Los Caimanes stretched their lead with nine minutes left, with Jimenez tapping in Elsar Rodas' cross, before Miguel Silva dragged a goal back for the hosts three minutes later.
But Los Caimanes secured victory in the 90th minute when Jimenez converted from the spot to complete his hat-trick.
Inti Gas replaced Melgar at the top of the standings with their win on Sunday, scoring twice in three first-half minutes through Jesus Arismendi and Amilton Prado.
Aurich claimed second with a 2-1 victory over Union Comercio, while Cesar Vallejo sit third after a 3-2 triumph over Sporting Cristal.
Melgar drew 1-1 with Real Garcilaso to drop to fourth, while Cienciano moved ahead of Universitario into fifth with a 2-2 draw at Leon de Huanuco.
In other results, Universidad San Martin thrashed UTC Cajamarca, while Alianza Lima prevailed 4-3 in a seven-goal thriller with Sport Huancayo.
|Coach: E. Malvestitti|
for J. Rey 62'
for N. Marcos 62'
for J. Acasiete 72'
|Argentina 2 El Salvador 0: Mancuello nets debut goal in straightforward win|
|Kovac not satisfied despite Croatia victory|
|Netherlands 1 Turkey 1: Huntelaar spares Hiddink from historic home loss|
|Ghana 1 Senegal 2: Konate brace downs Black Stars|
|Bulgaria 2 Italy 2: Controversial debutant Eder rescues Conte´s men|
|Morocco 0 Uruguay 1: Cavani spot-kick seals win|
|Al Sadd say talks with Xavi ongoing|
|McClean slams Sunderland´s handling of poppy controversy|
|Ghana 1-2 Senegal: Black Stars continue Afcon hangover|
|Cheltenham player diagnosed with cancer|
|Palace takeover talk premature - Parish|
|Odegaard becomes Euro qualifiers´ youngest starter|
|Job not done yet, Bale warns Wales|
|Israel 0 Wales 3: Brilliant Bale bags brace as Wales go top|
|Dunga backs Neymar to overhaul Pele´s Brazil goal record|
|League Two Review: Hartlepool climb out of drop zone, Cheltenham go bottom|
|El Salvador 0-2 Argentina: Martino's men triumph without Messi|
|League One Review: Canavan leaves it late to deny County|
|Freddy Adu signs with 11th team in as many years|
|Besiktas deny Cech, Danny rumours|
|Puerto Rico v Canada: Haber targets more momentum|
|Miranda not contemplating Atletico exit|
|Austin relaxed over England prospects|
|Manchester United should sign Ibrahimovic - Schmeichel|
|Ibe eyes Liverpool run-in|
|Bertrand called up by England as withdrawal of four players confirmed|
|A-League Review: Risdon nets stunner, Germano tames Roar|
|Panama v Costa Rica: Unbeaten run a secondary concern for Wanchope|
|Italy coach Conte shaken after death threats - FIGC chief|
|Barca fears over Alba eased|
|Schweinsteiger to start Germany qualifier|
|Akinfeev thanks fans after flare incident|
|Injuries offer Kane chance of first England start|
|Russian Football Union to protest following Montenegro abandonment|
|October comeback the target for injured Foster|
|Van der Vaart looks set to leave Hamburg|
|Bale focused on Wales - Coleman|
|Kluivert helps Curacao to victory|
|Hamstrung Alba returns to Barcelona|
|Macedonia v Australia: Confident visitors eye victory|
|Akinfeev to return to Moscow with Russia squad|
|Brnovic: Montenegro have no chance of qualifying|
|Russia had to resume after Akinfeev incident - Capello|
|Terim: Robben absence important|
|Brazil - Chile Preview: Winning is 'our only option' - Dunga|
|France - Denmark Preview: Olsen hits out at 'disrespectful' hosts|
|Morata keen to keep working|
|Canada 1 Guatemala 0: Haber heads Floro´s men to win|
|Difficult to find a place for Kane in starting XI - Hodgson|
|Difficult to find a place for Kane in starting XI - Hodgson|
|Montenegro-Russia abandoned after scuffle|
|Euro 2016 Qualifying Review: Montenegro-Russia abandoned, Spain and England win|
|Accrington Stanley 0 Newport County 2: Visitors up to sixth|
|Kane delighted with ´dream´ start|
|England 4 Lithuania 0: Kane enjoys dream debut|
|Spain 1 Ukraine 0: Morata settles tight contest|
|Akinfeev struck by flare as Montenegro-Russia game suspended after 30 seconds|
|Brazil v Chile: Winning is ´our only option´ - Dunga|
|Northern Ireland v Finland: Controversial fixture met with religious protests|
|Scotland v Gibraltar: Wilson out to dent countrymen´s hopes|
|Republic of Ireland v Poland: Pressure is on, says O´Neill|
|Georgia v Germany: Schneider warns world champions|
|PSV agree permament Guardado deal|
|France v Denmark: Olsen hits out at training facilities|
|Pienaar to return to Everton training|
|Hughes eyes silverware at Stoke after signing new deal|
|Portugal v Serbia: Carvalho vows to attack|
|Dynamo Kiev stadium partially closed after racism probe|
|Hull City fined £30,000 for misconduct|
|Balotelli must work hard for Italy return – Bonucci|
|Marchisio suffers knee ligament injury|
|Hughes agrees new Stoke City deal until 2018|
|Martinez hopeful over injured Everton trio|
|South Korea 1-1 Uzbekistan: Kuziboyev's debut strike denies hosts|
|South Korea 1 Uzbekistan 1: Kuziboyev´s debut strike denies hosts|
|Japan 2 Tunisia 0: Kagawa and Honda shine as Halilhodzic starts with a win|
|South Africa v Nigeria: Mashaba wary of bitter opponents|
|Japan 2-0 Tunisia: Kagawa & Honda shine in Halilhodzic's first game|
|Parma captain Lucarelli welcomes FIGC reforms|
|South Africa - Nigeria Preview: Mashaba wary of bitter opponents|
|Di Francesco ignoring Milan rumours|
|Melbourne Victory 2 Central Coast Mariners 1: Finkler leads fightback|
|Bale would be ´perfect´ for United - Scholes|
|Badstuber and Bellarabi out of Georgia clash|
|Rooney KOs boxing celebration|
|Allen thrilled with Welsh ´hunger´|
|Kovacic to miss Euro 2016 qualifier|
|Costa Rica 0 Paraguay 0: Dour draw marks Diaz debut|
|Reid ruled out of South Korea friendly|
|Deschamps talks up France despite defeat|
|Rooney chasing England goalscoring record|
|Brazil ´superior´ admit French veterans|
|Reeves sidelined for Finland clash|
|Confidence critical for rampaging Brazil - Dunga|