| 01/01/1963 | OSA scouting updated ratings: Stuff: 2; Movement: 2; Control: 1. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 2; Movement: 2; Control: 1. |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 1; Movement: 2; Control: 1. |
| 06/05/1965 | Drafted in the 1965 first-year player draft by the Rakisuta Rams. (Round 2, Pick 1, 13th overall pick). |
| 06/06/1965 | Released by the Rakisuta Rams. |
| 06/09/1965 | Signed a minor league contract with majors option with the Rakisuta Rams organization. |
| 06/11/1965 | Released by the Rakisuta Rams. |
| 06/17/1965 | Signed a minor league contract with majors option with the Rakisuta Rams organization. |
| 06/18/1965 | Released by the Rakisuta Rams. |
| 06/28/1965 | Signed a minor league contract with majors option with the Rakisuta Rams organization. |
| 07/16/1965 | Named the #13 prospect in the BAN |
| 05/01/1966 | Named the #11 prospect in the BAN |
| 05/31/1966 | Did not elect for free agency and will remain in the Rakisuta organization. |
| 07/16/1966 | Named the #9 prospect in the BAN |
| 09/13/1966 | Injured (bruised thigh),day-to-day for one week. |
| 05/01/1967 | Named the #7 prospect in the BAN |
| 08/27/1968 | Pitches a 5-hit shutout against the Kyoto Owls with 5 strikeouts and 2 BB allowed! |
| 03/21/1969 | Outstandingly completed training to improve his pitch control at the Rakisuta Rams development complex. |
| 08/02/1969 | Injured (food poisoning),out for 3 days. |
| 05/01/1970 | Outstandingly completed training to improve his secondary pitch at the Rakisuta Rams development complex. |
| 05/01/1971 | Successfully completed training to increase his pitch movement at the Rakisuta Rams development complex. |
| 05/01/1972 | Unsuccessfully completed training to increase his pitch movement at the Rakisuta Rams development complex. |
| 09/13/1972 | Pitches a 2-hit shutout against the Kyoto Owls with 7 strikeouts and 1 BB allowed! |
| 05/01/1973 | Successfully completed training to improve his secondary pitch at the Rakisuta Rams development complex. |
| 07/31/1973 | Was selected to the 1973 Baseball Association of Nippon All-Star Game. |
| 05/01/1974 | Outstandingly completed training to improve his strength and conditioning at the Rakisuta Rams development complex. |
| 07/18/1974 | Pitches a 3-hit shutout against the Sapporo Bears with 5 strikeouts and 2 BB allowed! |
| LEADERBOARD APPEARANCES |
| | | | Year | L | Rank | | 1971 | 11 | 9 | | 1972 | 15 | 3 | | 1974 | 14 | 2 | | | | Year | IP | Rank | | 1972 | 211.2 | 6 | | 1973 | 210.2 | 6 | | 1974 | 207.2 | 9 | |
| Year | BF | Rank | | 1972 | 902 | 6 | | 1973 | 888 | 7 | | 1974 | 898 | 7 | | | | Year | K | Rank | | 1972 | 146 | 8 | | 1974 | 122 | 10 | | | Year | WP | Rank | | 1971 | 6 | 7 | | 1972 | 7 | 6 | | 1974 | 9 | 3 | | | Year | BABIP | Rank | | 1971 | .289 | 8 | |
| Year | WHIP | Rank | | 1973 | 1.22 | 7 | | 1974 | 1.28 | 10 | | | Year | K/BB | Rank | | 1972 | 1.55 | 8 | | 1973 | 2.36 | 5 | | 1974 | 1.79 | 10 | | | Year | RA/9 | Rank | | 1973 | 11.53 | 10 | | | Year | HR/9 | Rank | | 1974 | 0.91 | 9 | | | Year | BB/9 | Rank | | 1972 | 4.00 | 8 | | 1973 | 2.14 | 2 | | 1974 | 2.95 | 10 | |
| Year | CG | Rank | | 1971 | 3 | 9 | | 1973 | 7 | 5 | | 1974 | 9 | 3 | | | Year | CGP | Rank | | 1971 | .111 | 9 | | 1973 | .241 | 5 | | 1974 | .321 | 4 | | | Year | SHO | Rank | | 1968 | 1 | 9 | | 1972 | 1 | 4 | | 1974 | 1 | 8 | | | Year | GB% | Rank | | 1968 | 0.55 | 7 | | | Year | WAR | Rank | | 1972 | 3.5 | 8 | | 1974 | 3.5 | 9 | |