Seoul, South Korea - USA West became the first team from the 2009 "M-1 Challenge Presented by Affliction" (www.M-1Global.com) season to clinch a semifinal final playoff berth on Saturday night. The post-season berth was locked down after taking first place in Group B by defeating the defending 2008 M-1 Challenge Champions, Team Russia Imperial.

While family and friends celebrate the Fourth of July at home in America, USA West held a celebration of its own in Seoul after recording its second 5-0 shutout of the season by sweeping Imperial. The statement victory allowed the Americans to finish the regular season with an unblemished 3-0 challenge record and a remarkable 13-2 record in individual fights.

During the dominating performance, both David Jansen and Shane Del Rosario of USA West preserved their undefeated records in professional MMA. Jansen, a product of Matt Lindland's Team Quest, moved to 11-0 following a guillotine submission victory via submission just 22 seconds into his encounter against Imperial's Amirkhan Mazikov.

Del Rosario, an EliteXC veteran, bested Jansen's time by one second following his TKO at 0:21 over Maksim Grishin. The heavyweight improved to 7-0 with all seven fights having ended inside the distance and six of them ending in round 1.

Team South Korea also competed on its home turf for the second time in two years on Saturday. Facing Group B rival Brazil Naja in a best-of-five series televised live on SBS, the Koreans fell one victory short of sending its countrymen and women home happy.

In the opener, Brazilian lightweight Hacran Dias was handed the first defeat of his career after dropping a unanimous decision to Korea's Nam Yui Chul. With the loss, Dias still maintains an impressive record of 11-1-1 and while Chul is now 9-2.

During the most anticipated bout of the evening, Brazil's Eduardo Pamplona finished the M-1 Challenge regular season with a perfect 3-0 record after winning a decision over Doh Hyung Kim at 2:59 of round three due to a cut. Soon after both fighters made their respective charismatic entrances, Kim sustained a wound that opened up during the course of the fight.

When medical officials examined Kim in round three and decided to call a premature end to the bout, the outcome of the fight reverted to the scorecards of the judges. The judges ruled that Pamplona, 11-2, won the fight in unanimous fashion. The encounter between the two welterweights lived up to the hype, with both Kim and Pamplona earning unofficial "Fight of the Night" honors.