The KBO League (), officially the Shinhan Bank SOL KBO League, is the highest level league of baseball in South Korea. The KBO League was founded with six franchises in 1982 and is the most popular sports league in South Korea. The Kia Tigers are the most successful team, having won 11 of the 40 championships. In comparison with American Major League Baseball, ESPN reports that the KBO level of play "appears to be somewhere between Double-A and Triple-A, on average, though the best players are more likely to be MLB-quality than your typical Double-A league." Historically, the KBO is known for its vocal and exuberant fan base, as well as the widespread practice of bat flips (ppa-dun (), a portmanteau of the "first syllables of the words for 'bat' and 'throw'") by hitters after stroking what they think will be a home run. In the KBO, the bat flipping tradition dates to the 1990s. League structure Regular season Since the 2015 season, each team plays 144 games in the regular season, an increase from 128 games, along with the introduction of the KT Wiz to the league. Each team plays every other team 16 times. In general, Korean teams play six games a week, with every Monday off. KBO All-Star Game In mid-July of every season, the best players participate in the KBO All-Star Game. The franchises participating are divided into two sets of teams: "Dream All-Stars" (Doosan, KT, Lotte, Samsung, and SSG) and "Nanum All-Stars" (Kia, Hanwha, LG, NC and Kiwoom). Post-season The KBO League's season culminates in its championship series, known as the KBO Korean Series. Currently, the top five teams qualify for the post-season based on win–loss records. The lowest-qualifying teams face off in a step-ladder playoff system, where each winner then faces the next-highest team, culminating in the Korean Series against the top-ranked team. KBO Wild Card Game: fifth-place team vs. fourth-place team Fourth-place team starts the series with a 1–0 lead and advances with one win or a tie, while the fifth-place team must win twice to advance. KBO Semi-playoffs: KBO Wild Card Game winner vs. third-place team Best of five series. KBO Playoffs: KBO Semi-playoffs winner vs. second-place team Best of five series. KBO Korean Series: KBO Playoffs winner vs. first-place team Best of seven series. Any playoff games ending in an official tie are replayed, thereby raising the possibility of a close