| 06/05/1951 | Drafted in the 1951 first-year player draft by the Osaka Sailors. (Round 4, Pick 8, 44th overall pick). |
| 10/11/1951 | Named the #74 prospect in the BAN |
| 05/01/1952 | Named the #70 prospect in the BAN |
| 06/22/1952 | Released by the Osaka Sailors. |
| 06/25/1952 | Signed a minor league contract with majors option with the Vesutan Bees organization. |
| 03/26/1953 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Vesutan Bees development complex. |
| 04/29/1953 | Outstandingly completed training to improve his defense at pitcher at the Vesutan Bees development complex. |
| 05/01/1953 | Named the #73 prospect in the BAN |
| 07/01/1953 | Wins the BAN WL Rookie of the Month Award. |
| 07/31/1953 | Was selected to the 1953 Baseball Association of Nippon All-Star Game. |
| 02/26/1954 | Released by the Vesutan Bees. |
| 04/02/1954 | Signed a 1-year contract worth a total of $14,600 with the Kinboshi Kites organization. |
| 03/26/1956 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Kinboshi Kites development complex. |
| 06/11/1956 | Injured (cold),day-to-day for 2 days. |
| 07/31/1956 | Was selected to the 1956 Baseball Association of Nippon All-Star Game. |
| 09/18/1956 | Injured (viral infection),day-to-day for one week. |
| 07/31/1957 | Was selected to the 1957 Baseball Association of Nippon All-Star Game. |
| 10/11/1957 | Wins the 1957 BAN Championship Series with the Kinboshi Kites. |
| 03/24/1958 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Kinboshi Kites development complex. |
| 07/31/1958 | Was selected to the 1958 Baseball Association of Nippon All-Star Game. |
| 05/04/1959 | Released by the Kinboshi Kites. |
| 05/12/1959 | Signed a 1-year contract worth a total of $17,400 with the Rakisuta Rams organization. |
| 10/14/1959 | Wins the 1959 BAN Championship Series with the Kinboshi Kites. |
| 04/23/1960 | Unsuccessfully completed training to increase his endurance on the mound at the Rakisuta Rams development complex. |
| 04/26/1962 | Unsuccessfully completed training to increase his endurance on the mound at the Rakisuta Rams development complex. |
| 05/04/1962 | Pitches a 6-hit shutout against the Kyoto Owls with 2 strikeouts and 1 BB allowed! |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 2; Movement: 3; Control: 3. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 2; Movement: 3; Control: 3. |
| 03/23/1963 | Unsuccessfully completed training to increase his endurance on the mound at the Rakisuta Rams development complex. |
| 07/31/1963 | Was selected to the 1963 Baseball Association of Nippon All-Star Game. |
| 08/19/1963 | Injured (torn UCL),out for 13 months. |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 2; Movement: 3; Control: 3. |
| 10/17/1964 | Was traded by the Rakisuta Rams to the Sapporo Bears, along with SP Shinichi Kimura, in exchange for SS Michihiko Ishikawa and LF Kazuo Kawahara. |
| 07/02/1965 | Injured (back stiffness),day-to-day for 2 weeks. |
| 07/01/1967 | Wins the BAN EL Pitcher of the Month Award. |
| 10/11/1972 | Retired from professional baseball. |
| LEADERBOARD APPEARANCES |
| | | Year | G | Rank | | 1957 | 62 | 1 | | 1958 | 65 | 1 | | 1962 | 47 | 6 | | 1965 | 50 | 10 | | | Year | GS | Rank | | 1953 | 22 | 8 | | 1967 | 29 | 9 | | 1968 | 29 | 9 | | 1969 | 29 | 7 | | | | Year | L | Rank | | 1953 | 14 | 2 | | 1960 | 11 | 6 | | 1968 | 11 | 8 | | 1969 | 12 | 5 | | 1972 | 14 | 6 | |
| Year | SV | Rank | | 1956 | 5 | 10 | | 1957 | 18 | 1 | | 1958 | 13 | 4 | | 1962 | 11 | 5 | | 1963 | 6 | 6 | | 1965 | 4 | 8 | | | Year | HLD | Rank | | 1956 | 1 | 9 | | 1957 | 2 | 3 | | 1958 | 3 | 3 | | 1965 | 7 | 6 | | | Year | IP | Rank | | 1953 | 133.0 | 9 | | | | Year | HRA | Rank | | 1967 | 19 | 5 | | 1968 | 22 | 4 | | 1969 | 16 | 10 | | 1972 | 34 | 4 | |
| | | Year | WP | Rank | | 1953 | 2 | 7 | | 1957 | 4 | 9 | | 1960 | 7 | 2 | | 1961 | 8 | 3 | | 1967 | 7 | 9 | | 1968 | 9 | 3 | | 1970 | 6 | 6 | | 1972 | 8 | 4 | | | Year | K/BB | Rank | | 1969 | 1.79 | 10 | | | Year | HR/9 | Rank | | 1961 | 0.60 | 7 | | | Year | BB/9 | Rank | | 1966 | 1.83 | 3 | | 1967 | 2.35 | 3 | | 1968 | 2.39 | 6 | | 1969 | 2.49 | 7 | |
| Year | RA | Rank | | 1957 | 62 | 1 | | 1958 | 65 | 1 | | 1962 | 38 | 9 | | 1965 | 50 | 10 | | | Year | GF | Rank | | 1957 | 46 | 2 | | 1958 | 50 | 2 | | 1962 | 36 | 6 | | 1963 | 23 | 9 | | | | |
| Year | GB% | Rank | | 1961 | 0.53 | 10 | | 1966 | 0.54 | 10 | | 1967 | 0.56 | 6 | | 1969 | 0.54 | 10 | | 1972 | 0.57 | 4 | | | | | |