Pool A of the first round of the 2009 World Baseball Classic was held at Tokyo Dome, Tokyo, Japan from March 5 to 9, 2009.
Pool A was a modified double-elimination tournament. The winners for the first games matched up in the second game, while the losers faced each other in an elimination game. The winners of the elimination game then played the losers of the non-elimination game in another elimination game. The remaining two teams then played each other to determine seeding for the Pool 1.
| Preliminaries | Qualifiers | Seeding | |||||||||||
| – |  China | 0 | |||||||||||
| – |  Japan | 4 | |||||||||||
| W1 | Japan | 14 | |||||||||||
| W2 |  South Korea | 2 | |||||||||||
| – |  Chinese Taipei | 0 | |||||||||||
| – | South Korea | 9 | |||||||||||
| W4 | Japan | 0 | |||||||||||
| W5 | South Korea | 1 | |||||||||||
| Lower round 1 | Lower final | ||||||||||||
| W3 | China | 0 | |||||||||||
| L1 | China | 4 | L4 | South Korea | 14 | ||||||||
| L2 | Chinese Taipei | 1 | |||||||||||
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| China |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 2 | |||||||||||||||||||||
| Japan |
0 | 0 | 3 | 0 | 0 | 1 | 0 | 0 | X | 4 | 5 | 0 | |||||||||||||||||||||
| WP: Yu Darvish (1−0) LP: Chenhao Li (0−1) Home runs: CHN: None JPN: Shuichi Murata (1) Attendance: 43,428 (103.4%) Umpires: HP − Ed Hickox, 1B − Jorge Pérez, 2B − Dana DeMuth, 3B − Daniel Toledo Boxscore | |||||||||||||||||||||||||||||||||
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chinese Taipei |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | |||||||||||||||||||||
| South Korea |
6 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | X | 9 | 10 | 0 | |||||||||||||||||||||
| WP: Hyun-jin Ryu (1−0) LP: C. C. Lee (0−1) Home runs: TPE: None KOR: Jin-young Lee (1), Keun-woo Jeong (1) Attendance: 12,704 (30.2%) Umpires: HP − Andy Fletcher, 1B − Daniel Toledo, 2B − Ed Hickox, 3B − Paul Hyham Boxscore | |||||||||||||||||||||||||||||||||
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chinese Taipei |
0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 7 | 0 | |||||||||||||||||||||
| China |
1 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | X | 4 | 9 | 0 | |||||||||||||||||||||
| WP: Jiangang Lü (1−0) LP: Yueh-ping Lin (0−1) Sv: Kun Chen (1) Home runs: TPE: None CHN: Ray Chang (1) Attendance: 12,890 (30.7%) Umpires: HP − Dana DeMuth, 1B − Paul Hyham, 2B − Andy Fletcher, 3B − Jorge Pérez Boxscore | |||||||||||||||||||||||||||||||||
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Japan |
3 | 5 | 0 | 1 | 2 | 2 | 1 | X | X | 14 | 14 | 0 | |||||||||||||||||||||
| South Korea |
2 | 0 | 0 | 0 | 0 | 0 | 0 | X | X | 2 | 4 | 1 | |||||||||||||||||||||
| WP: Daisuke Matsuzaka (1−0) LP: Kwang-hyun Kim (0−1) Home runs: JPN: Shuichi Murata (2), Kenji Johjima (1) KOR: Tae-kyun Kim (1) Attendance: 45,640 (108.7%) Umpires: HP − Ed Hickox, 1B − Jorge Pérez, 2B − Andy Fletcher, 3B − Daniel Toledo Notes: Completed early due to 10–run mercy rule after 7 innings. Boxscore | |||||||||||||||||||||||||||||||||
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| China |
0 | 0 | 0 | 0 | 0 | 0 | 0 | X | X | 0 | 2 | 2 | |||||||||||||||||||||
| South Korea |
2 | 0 | 0 | 2 | 5 | 5 | X | X | X | 14 | 10 | 0 | |||||||||||||||||||||
| WP: Suk-min Yoon (1−0) LP: Guoqiang Sun (0−1) Home runs: CHN: None KOR: Bum-ho Lee (1) Attendance: 12,571 (29.9%) Umpires: HP − Andy Fletcher, 1B − Daniel Toledo, 2B − Dana DeMuth, 3B − Paul Hyham Notes: Completed early due to 10–run mercy rule after 7 innings. Boxscore | |||||||||||||||||||||||||||||||||
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| South Korea |
0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | |||||||||||||||||||||
| Japan |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | |||||||||||||||||||||
| WP: Jung-keun Bong (1−0) LP: Hisashi Iwakuma (0−1) Sv: Chang-yong Lim (1) Attendance: 42,879 (102.1%) Umpires: HP − Dana DeMuth, 1B − Paul Hyham, 2B − Ed Hickox, 3B − Jorge Pérez Boxscore | |||||||||||||||||||||||||||||||||