| 06/05/1957 | Drafted in the 1957 first-year player draft by the Sapporo Bears. (Round 1, Pick 12, 12th overall pick). |
| 07/16/1957 | Named the #10 prospect in the BAN |
| 03/24/1958 | Successfully completed training to improve his pitch control at the Sapporo Bears development complex. |
| 05/01/1958 | Named the #10 prospect in the BAN |
| 03/24/1959 | Successfully completed training to improve his secondary pitch at the Sapporo Bears development complex. |
| 05/01/1959 | Named the #11 prospect in the BAN |
| 07/16/1959 | Named the #27 prospect in the BAN |
| 03/23/1960 | Unsuccessfully completed training to increase his velocity at the Sapporo Bears development complex. |
| 05/01/1960 | Named the #18 prospect in the BAN |
| 05/25/1960 | Pitches a 4-hit shutout against the Rakisuta Rams with 6 strikeouts and 2 BB allowed! |
| 06/01/1960 | Wins the BAN EL Rookie of the Month Award. |
| 06/09/1960 | Injured (knee contusion),day-to-day for 3 days. |
| 07/31/1960 | Was selected to the 1960 Baseball Association of Nippon All-Star Game. |
| 08/14/1960 | Pitches a 4-hit shutout against the Hosho Reliables with 11 strikeouts and 1 BB allowed! |
| 09/29/1960 | Pitches a 4-hit shutout against the Denki Dynamics with 2 strikeouts and 0 BB allowed! |
| 03/23/1961 | Successfully completed training to improve his secondary pitch at the Sapporo Bears development complex. |
| 05/01/1961 | Successfully completed training to work on his bunting at the Sapporo Bears development complex. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 3. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 3. |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 3. |
| 08/08/1964 | Pitches a 4-hit shutout against the Yokohama Kingfishers with 3 strikeouts and 0 BB allowed! |
| 10/01/1964 | Wins the BAN EL Pitcher of the Month Award. |
| 09/08/1965 | Pitches a 4-hit shutout against the Hosho Reliables with 5 strikeouts and 1 BB allowed! |
| 06/29/1966 | Pitches a 3-hit shutout against the Rakisuta Rams with 6 strikeouts and 1 BB allowed! |
| 07/02/1967 | Pitches a 1-hit shutout against the Denki Dynamics with 4 strikeouts and 0 BB allowed! |
| 07/03/1967 | Wins the BAN EL Player of the Week Award. |
| 07/31/1967 | Was selected to the 1967 Baseball Association of Nippon All-Star Game. |
| 03/21/1968 | Unsuccessfully completed training to improve his secondary pitch at the Sapporo Bears development complex. |
| 05/01/1970 | Unsuccessfully completed training to increase his velocity at the Sapporo Bears development complex. |
| 05/05/1970 | Pitches a NO-HITTER against the Rakisuta Rams with 6 strikeouts and 4 BB allowed! |
| 05/17/1970 | Pitches a NO-HITTER against the Yokohama Kingfishers with 6 strikeouts and 1 BB allowed! |
| 06/06/1970 | Injured (strained abdominal muscle),day-to-day for 1-2 weeks. |
| 06/11/1970 | Pitches a NO-HITTER against the Kyoto Owls with 6 strikeouts and 2 BB allowed! |
| 07/08/1970 | Injured (torn rotator cuff),career-ending injury! |
| 07/09/1970 | Released by the Sapporo Bears. |
| 10/23/1970 | Retired from professional baseball. |
| LEADERBOARD APPEARANCES |
| Year | SH | Rank | | 1962 | 11 | 5 | | 1963 | 9 | 10 | | | Year | GS | Rank | | 1961 | 29 | 8 | | 1962 | 29 | 6 | | 1963 | 29 | 5 | | 1964 | 29 | 8 | | 1967 | 30 | 4 | | 1968 | 31 | 1 | | 1969 | 29 | 7 | | | Year | W | Rank | | 1960 | 12 | 8 | | 1961 | 12 | 8 | | 1964 | 14 | 5 | | 1965 | 12 | 5 | | 1968 | 13 | 4 | | | Year | L | Rank | | 1961 | 10 | 8 | | 1962 | 17 | 1 | | 1963 | 16 | 1 | | 1965 | 11 | 8 | | 1967 | 12 | 8 | | 1968 | 11 | 8 | | 1969 | 13 | 4 | | | Year | Win. % | Rank | | 1960 | .571 | 10 | | 1964 | .609 | 8 | | 1966 | .562 | 9 | | 1968 | .542 | 9 | |
| Year | IP | Rank | | 1961 | 202.2 | 7 | | 1962 | 211.0 | 4 | | 1963 | 204.1 | 7 | | 1964 | 194.0 | 10 | | 1968 | 210.0 | 5 | | 1969 | 189.0 | 9 | | | Year | BF | Rank | | 1961 | 903 | 5 | | 1962 | 921 | 3 | | 1963 | 852 | 4 | | 1964 | 825 | 7 | | 1967 | 832 | 8 | | 1968 | 862 | 7 | | 1969 | 809 | 9 | | | Year | HRA | Rank | | 1961 | 29 | 1 | | 1962 | 28 | 1 | | 1963 | 31 | 1 | | 1964 | 21 | 2 | | 1965 | 19 | 3 | | 1966 | 13 | 8 | | 1967 | 17 | 9 | | 1968 | 23 | 3 | | 1969 | 27 | 2 | | | Year | K | Rank | | 1960 | 131 | 5 | | 1961 | 147 | 4 | | 1962 | 159 | 3 | | 1963 | 154 | 5 | | 1964 | 133 | 10 | | 1967 | 133 | 4 | | 1968 | 127 | 8 | | 1969 | 124 | 4 | | | Year | WP | Rank | | 1960 | 5 | 6 | | 1964 | 6 | 8 | | 1967 | 10 | 3 | |
| Year | BABIP | Rank | | 1963 | .254 | 7 | | | Year | WHIP | Rank | | 1966 | 1.12 | 10 | | 1968 | 1.14 | 7 | | | Year | K/BB | Rank | | 1960 | 2.73 | 5 | | 1961 | 2.07 | 6 | | 1962 | 2.18 | 6 | | 1963 | 2.75 | 6 | | 1965 | 2.42 | 8 | | 1966 | 2.28 | 8 | | 1967 | 2.15 | 8 | | 1968 | 2.31 | 4 | | 1969 | 1.94 | 6 | | | Year | RA/9 | Rank | | 1960 | 11.54 | 9 | | 1963 | 10.66 | 7 | | 1966 | 10.26 | 9 | | 1968 | 10.41 | 7 | | | Year | BB/9 | Rank | | 1960 | 2.35 | 5 | | 1962 | 3.11 | 9 | | 1963 | 2.47 | 8 | | 1966 | 1.91 | 6 | | 1968 | 2.36 | 5 | |
| Year | K/9 | Rank | | 1960 | 6.41 | 3 | | 1961 | 6.53 | 3 | | 1962 | 6.78 | 5 | | 1963 | 6.78 | 7 | | 1965 | 5.89 | 6 | | 1967 | 6.16 | 4 | | 1968 | 5.44 | 10 | | 1969 | 5.90 | 5 | | | | Year | CG | Rank | | 1960 | 5 | 10 | | 1961 | 8 | 3 | | 1962 | 11 | 2 | | 1963 | 6 | 4 | | 1965 | 3 | 6 | | 1968 | 3 | 8 | | | Year | CGP | Rank | | 1960 | .185 | 10 | | 1961 | .276 | 3 | | 1962 | .379 | 2 | | 1963 | .207 | 6 | | 1965 | .107 | 6 | | | Year | SHO | Rank | | 1960 | 3 | 3 | | 1964 | 1 | 5 | | 1965 | 1 | 5 | | 1966 | 1 | 6 | | 1967 | 1 | 6 | |
| Year | WAR | Rank | | 1960 | 4.7 | 8 | | 1967 | 4.3 | 6 | | | | | |