BUENOS AIRES - Huracan beat bitter rivals San Lorenzo 1-0 on Sunday to set up a dramatic three-horse finale to the Argentine Clausura championship. Huracan's win kept them one point behind leaders Velez Sarsfield and one ahead of Lanus with two games each to play. Lanus dropped from first to third after losing 4-1 at Arsenal on Saturday while Velez beat Newell's Old Boys 2-0. To add to the drama, Lanus host Velez next weekend before Velez face Huracan on the final day of the season. Defender Paulo Goltz headed the only goal following a corner in the 38th minute. "It was one of the worst games we've played," said Huracan coach Angel Cappa. "If we'd played at 30 or 40 percent of our capabilities, it would have been a simple second half." Racing Club eased their relegation worries by scoring three quickfire goals to beat fading Boca Juniors 3-0 in another derby. The Academy are 15th in the 20-team relegation standings which are decided over three seasons. The bottom two go down while the 17th and 18th teams play off against second division sides. The match burst into life in a three-minute spell just after the hour when Lucas Castroman put Racing ahead, Boca had midfielder Sebastian Battaglia sent off and Franco Zuculini added a second. Sebastian Grazzini completed the scoring in the 72nd minute as Boca, Argentina's most popular club, dropped to 15th. San Martin-Tucuman look set to go down after losing 1-0 at home to relegated Gimnasia-Jujuy. It was San Martin's first game since a group of armed men burst into a training session 10 days ago, threatened the players and fired a shot into the air.