Abstract
The author researched the method for preparing starting line-up of Japanese team targeting at 14 sets（four matches）in London Olympic 2012. The first block of Japanese team corresponded to opposing team’s marked players five times in front row.
Starting line-up was selected by Japanese team method and 2-LS alternative method.
With regard to rank for each set, higher rank was obtained by 2-LS alternative method. In Japan vs. Korea match, Japanese No.18, R2 player could avoid continuous loss in 3R phase of reception at front row. That was one of the reasons for victory. At that time, R2, No.10 player and setter marked by Korean team could play in front row and LS-6 not LS-2. It was a cause of success. There is a theory that if team plus rate exceeds 50.0%, the team can win with a probability of about 80.0% or more. There was a tendency supporting the theory. Line-up analysis using by 2-LS alternative method and team plus rate was effective method to win opposing team.
