| 06/27/1949 | Drafted in the 1949 first-year player draft by the Tokyo Denki Dynamics. (Round 2, Pick 3, 11th overall pick). |
| 09/20/1949 | Named the #5 prospect in the JBA |
| 01/01/1950 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 05/01/1950 | Named the #7 prospect in the BAN |
| 10/21/1950 | Was traded by the Denki Dynamics to the Sapporo Bears, along with CF Manobu Hirano, in exchange for RF Momota Matsuda and CF Okura Ichimura. |
| 02/18/1951 | Was traded by the Sapporo Bears to the Hosho Reliables, along with C Michinao Okamoto, in exchange for 3B Katsumasa Kaneshiro. |
| 04/29/1952 | Outstandingly completed training to work on his bunting at the Hosho Reliables development complex. |
| 07/31/1952 | Was selected to the 1952 Baseball Association of Nippon All-Star Game. |
| 10/13/1952 | Wins the 1952 BAN Championship Series with the Hosho Reliables. |
| 03/26/1953 | Unsuccessfully completed training to increase his velocity at the Hosho Reliables development complex. |
| 08/14/1953 | Pitches a 3-hit shutout against the Yokohama Kingfishers with 3 strikeouts and 0 BB allowed! |
| 03/26/1954 | Unsuccessfully completed training to add a pitch to his arsenal at the Hosho Reliables development complex. |
| 04/29/1955 | Successfully completed training to improve his defense at pitcher at the Hosho Reliables development complex. |
| 03/24/1957 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Hosho Reliables development complex. |
| 05/13/1957 | Released by the Hosho Reliables. |
| 05/15/1957 | Signed a 1-year contract worth a total of $4,620 with the Nagasaki Stars organization. |
| 06/24/1957 | Released by the Nagasaki Stars. |
| 06/26/1957 | Signed a 1-year contract worth a total of $4,660 with the Nagasaki Stars organization. |
| 03/24/1958 | Unsuccessfully completed training to increase his endurance on the mound at the Nagasaki Stars development complex. |
| 10/12/1958 | Wins the 1958 BAN Championship Series with the Nagasaki Stars. |
| 10/22/1958 | Released by the Nagasaki Stars. |
| 11/04/1958 | Signed a 1-year contract worth a total of $4,680 with the Hosho Reliables organization. |
| 03/23/1960 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Hosho Reliables development complex. |
| 03/23/1961 | Unsuccessfully completed training to increase his endurance on the mound at the Hosho Reliables development complex. |
| 08/09/1962 | Released by the Hosho Reliables. |
| 08/15/1962 | Signed a 1-year contract worth a total of $4,960 with the Denki Dynamics organization. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 2. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 2. |
| 10/17/1963 | Released by the Denki Dynamics. |
| 11/28/1963 | Signed a 1-year contract worth a total of $23,200 with the Vesutan Bees organization. |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 1. |
| 05/16/1964 | Released by the Vesutan Bees. |
| 05/20/1964 | Signed a 1-year contract worth a total of $23,200 with the Vesutan Bees organization. |
| 06/25/1964 | Pitches a 2-hit shutout against the Fukuoka Falcons with 4 strikeouts and 0 BB allowed! |
| 08/19/1964 | Released by the Vesutan Bees. |
| 10/16/1965 | Retired from professional baseball. |
| LEADERBOARD APPEARANCES |
| | | Year | G | Rank | | 1953 | 45 | 2 | | 1960 | 66 | 1 | | 1962 | 44 | 7 | | 1963 | 42 | 8 | | | | | Year | L | Rank | | 1952 | 9 | 6 | | 1953 | 7 | 10 | |
| Year | Win. % | Rank | | 1952 | .571 | 5 | | | Year | SV | Rank | | 1953 | 10 | 2 | | 1956 | 10 | 7 | | 1960 | 18 | 2 | | | Year | HLD | Rank | | 1956 | 2 | 5 | | 1959 | 3 | 1 | | 1963 | 3 | 7 | | | Year | IP | Rank | | 1952 | 177.0 | 6 | | |
| Year | HRA | Rank | | 1952 | 13 | 4 | | 1960 | 17 | 9 | | | Year | BB | Rank | | 1952 | 80 | 3 | | 1953 | 60 | 8 | | | Year | K | Rank | | 1952 | 100 | 6 | | 1953 | 61 | 10 | | | Year | WP | Rank | | 1952 | 7 | 1 | | 1953 | 3 | 8 | | | Year | ERA | Rank | | 1952 | 3.31 | 5 | |
| Year | BABIP | Rank | | 1952 | .289 | 6 | | | Year | WHIP | Rank | | 1952 | 1.46 | 6 | | | Year | K/BB | Rank | | 1952 | 1.25 | 6 | | | Year | RA/9 | Rank | | 1952 | 13.42 | 6 | | | Year | HR/9 | Rank | | 1952 | 0.66 | 7 | |
| Year | H/9 | Rank | | 1952 | 9.10 | 5 | | | Year | BB/9 | Rank | | 1952 | 4.07 | 9 | | | Year | K/9 | Rank | | 1952 | 5.08 | 3 | | | Year | RA | Rank | | 1953 | 36 | 3 | | 1960 | 66 | 1 | | 1962 | 44 | 6 | | 1963 | 40 | 8 | | | Year | GF | Rank | | 1953 | 34 | 2 | | 1960 | 58 | 1 | | 1961 | 23 | 9 | | 1962 | 24 | 9 | | 1963 | 24 | 6 | |
| | | Year | QSP | Rank | | 1952 | .630 | 5 | | | Year | CG | Rank | | 1952 | 2 | 8 | | 1953 | 2 | 7 | | | Year | CGP | Rank | | 1952 | .074 | 7 | | | Year | SHO | Rank | | 1953 | 1 | 5 | | 1964 | 1 | 7 | |
| Year | GB% | Rank | | 1952 | 0.49 | 3 | | | | | |