The Asia Series is an international baseball tournament in East Asia that was first held between November 10 and November 13, 2005, in Tokyo. The tournament was sponsored by Konami corporation from 2005 to 2007 and was known as the Konami Cup in that period.

It is played among the annual champions of the Nippon Professional Baseball's (NPB) Japan Series, the Korea Professional Baseball's (KPB) Korean Series, the Chinese Professional Baseball League's (CPBL) Taiwan Series, and the China Baseball League's (CBL) championship series. Prior to 2008, China Stars, an all-star team of China Baseball League participated in the series instead of the champion from China.

The tournament has not been played since 2008 due to financing issues following the withdrawal of Konami. However, the subject of re-introducing the event was discussed in a November 2010 meeting between the heads of the NPB, KPB, CPBL, and Australian Baseball League (ABL). The CPBL offered to host the event in November 2011, though scheduling issues complicate Australia's ability to participate.[1] The ABL is a winter league, with its season running from November to February.

The designated hitter rule is applied throughout the series.

Season Champions Score Runners-up MVP
2005 Chiba Lotte Marines 5 – 3 Samsung Lions Benny Agbayani
2006 Hokkaido Nippon Ham Fighters 1 – 0 La New Bears Yu Darvish
2007 Chunichi Dragons 6 – 5 SK Wyverns Hirokazu Ibata
2008 Saitama Seibu Lions 1 – 0 Uni-President 7-Eleven Lions Tomoaki Satoh

Country[1] Organization[2] Winners[3] Runners Up[4] Games[5] Win[6] Lose[7] Tie[8]
Japan Nippon Professional Baseball 4 0 16 14 2 0
South Korea Korea Professional Baseball 0 2 14 8 6 0
Chinese Taipei Chinese Professional Baseball League 0 2 14 6 8 0
China China Baseball League 0 0 12 0 12 0
Community content is available under CC-BY-SA unless otherwise noted.