| 06/05/1956 | Drafted in the 1956 first-year player draft by the Sapporo Bears. (Round 1, Pick 5, 5th overall pick). |
| 05/01/1957 | Named the #8 prospect in the BAN |
| 07/01/1957 | Wins the BAN EL Rookie of the Month Award. |
| 07/16/1957 | Named the #20 prospect in the BAN |
| 08/01/1957 | Wins the BAN EL Rookie of the Month Award. |
| 10/01/1957 | Wins the BAN EL Rookie of the Month Award. |
| 05/01/1958 | Successfully completed training to improve his defense at pitcher at the Sapporo Bears development complex. |
| 08/16/1958 | Pitches a 1-hit shutout against the Rakisuta Rams with 7 strikeouts and 2 BB allowed! |
| 03/24/1959 | Unsuccessfully completed training to increase his velocity at the Sapporo Bears development complex. |
| 05/01/1959 | Successfully completed training to improve his defense at pitcher at the Sapporo Bears development complex. |
| 05/19/1959 | Pitches a 3-hit shutout against the Kyoto Owls with 3 strikeouts and 3 BB allowed! |
| 07/26/1959 | Injured (herniated disc (back)),out for 2 weeks. |
| 09/02/1959 | Pitches a 4-hit shutout against the Rakisuta Rams with 2 strikeouts and 0 BB allowed! |
| 05/01/1960 | Unsuccessfully completed training to improve his defense at pitcher at the Sapporo Bears development complex. |
| 07/31/1960 | Was selected to the 1960 Baseball Association of Nippon All-Star Game. |
| 08/28/1960 | Pitches a 9-hit shutout against the Denki Dynamics with 4 strikeouts and 1 BB allowed! |
| 03/23/1961 | Successfully completed training to increase his velocity at the Sapporo Bears development complex. |
| 06/08/1961 | Pitches a 3-hit shutout against the Hosho Reliables with 4 strikeouts and 2 BB allowed! |
| 07/18/1961 | Pitches a 2-hit shutout against the Denki Dynamics with 2 strikeouts and 1 BB allowed! |
| 07/31/1961 | Was selected to the 1961 Baseball Association of Nippon All-Star Game. |
| 03/23/1962 | Successfully completed training to improve his secondary pitch at the Sapporo Bears development complex. |
| 05/01/1962 | Successfully completed training to improve his defense at pitcher at the Sapporo Bears development complex. |
| 06/12/1962 | Pitches a 2-hit shutout against the Hosho Reliables with 2 strikeouts and 3 BB allowed! |
| 09/28/1962 | Pitches a 3-hit shutout against the Yokohama Kingfishers with 4 strikeouts and 4 BB allowed! |
| 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. |
| 06/01/1963 | Wins the BAN EL Pitcher of the Month Award. |
| 10/01/1963 | Wins the BAN EL Pitcher of the Month Award. |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 3. |
| 03/22/1964 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Sapporo Bears development complex. |
| 09/13/1964 | Pitches a 3-hit shutout against the Denki Dynamics with 4 strikeouts and 1 BB allowed! |
| 09/14/1964 | Wins the BAN EL Player of the Week Award. |
| 03/22/1965 | Outstandingly completed training to make one of his poorer pitches more usable at the Sapporo Bears development complex. |
| 09/06/1965 | Injured (strained oblique),day-to-day for 2 weeks. |
| 10/30/1965 | Was traded by the Sapporo Bears to the Vesutan Bees in exchange for C Yasumitsu Shirai and 1B Hiroshi Kato. |
| 05/26/1966 | Pitches a 4-hit shutout against the Fukuoka Falcons with 3 strikeouts and 0 BB allowed! |
| 09/08/1966 | Pitches a 5-hit shutout against the Kobe Bulls with 4 strikeouts and 2 BB allowed! |
| 05/29/1967 | Wins the BAN WL Player of the Week Award. |
| 05/17/1968 | Pitches a 4-hit shutout against the Osaka Sailors with 5 strikeouts and 1 BB allowed! |
| 06/14/1969 | Released by the Vesutan Bees. |
| 12/16/1969 | Signed a 1-year contract worth a total of $96,000 with the Sapporo Bears organization. |
| 05/02/1970 | Pitches a NO-HITTER against the Denki Dynamics with 8 strikeouts and 0 BB allowed! |
| 06/07/1970 | Pitches a NO-HITTER against the Sapporo Bears with 4 strikeouts and 3 BB allowed! |
| 08/18/1970 | Injured (mild hamstring strain),day-to-day for 3 days. |
| 09/10/1970 | Pitches a 4-hit shutout against the Yokohama Kingfishers with 4 strikeouts and 4 BB allowed! |
| 09/14/1970 | Pitches a 6-hit shutout against the Denki Dynamics with 2 strikeouts and 1 BB allowed! |
| 09/13/1971 | Pitches a 3-hit shutout against the Kyoto Owls with 5 strikeouts and 1 BB allowed! |
| 07/07/1972 | Pitches a 4-hit shutout against the Denki Dynamics with 4 strikeouts and 5 BB allowed! |
| 10/01/1973 | Wins the BAN EL Pitcher of the Month Award. |
| 05/23/1974 | Injured (forearm inflammation),out for 3-4 months. |
| LEADERBOARD APPEARANCES |
| Year | SH | Rank | | 1958 | 11 | 6 | | 1962 | 9 | 6 | | 1963 | 9 | 10 | | 1964 | 12 | 1 | | 1970 | 16 | 6 | | | | Year | GS | Rank | | 1961 | 29 | 8 | | 1962 | 29 | 6 | | 1964 | 29 | 8 | | 1966 | 31 | 1 | | 1967 | 31 | 1 | | 1970 | 36 | 7 | | 1971 | 30 | 4 | | 1972 | 30 | 4 | | | Year | W | Rank | | 1958 | 12 | 8 | | 1960 | 12 | 8 | | 1961 | 16 | 1 | | 1963 | 15 | 3 | | 1964 | 12 | 8 | | 1966 | 17 | 1 | | 1970 | 15 | 9 | | 1971 | 12 | 4 | | 1972 | 12 | 9 | | 1973 | 12 | 9 | | | Year | L | Rank | | 1967 | 12 | 5 | | 1968 | 15 | 2 | | 1973 | 14 | 2 | |
| Year | Win. % | Rank | | 1959 | .625 | 8 | | 1960 | .571 | 10 | | 1961 | .762 | 1 | | 1963 | .652 | 4 | | 1964 | .632 | 6 | | 1966 | .739 | 2 | | 1970 | .600 | 3 | | 1971 | .600 | 5 | | | Year | IP | Rank | | 1960 | 203.0 | 9 | | 1961 | 197.0 | 9 | | 1962 | 194.0 | 8 | | 1963 | 206.0 | 6 | | 1964 | 198.2 | 7 | | 1966 | 228.1 | 3 | | 1967 | 197.1 | 10 | | 1970 | 289.0 | 5 | | 1971 | 199.0 | 8 | | 1972 | 208.0 | 8 | | | Year | BF | Rank | | 1960 | 875 | 4 | | 1961 | 865 | 7 | | 1962 | 858 | 7 | | 1963 | 846 | 6 | | 1964 | 817 | 8 | | 1966 | 933 | 3 | | 1967 | 852 | 8 | | 1968 | 849 | 8 | | 1970 | 1208 | 5 | | 1971 | 858 | 7 | | 1972 | 900 | 7 | | | Year | HRA | Rank | | 1970 | 34 | 3 | | 1971 | 26 | 9 | | 1972 | 28 | 10 | | 1973 | 34 | 3 | | | Year | BB | Rank | | 1962 | 87 | 6 | | 1963 | 77 | 4 | | 1964 | 62 | 6 | | 1967 | 73 | 3 | | 1968 | 56 | 10 | | 1970 | 104 | 8 | |
| Year | K | Rank | | 1958 | 130 | 8 | | 1966 | 121 | 3 | | 1968 | 106 | 10 | | | Year | WP | Rank | | 1957 | 6 | 1 | | 1959 | 6 | 10 | | 1963 | 6 | 7 | | 1964 | 6 | 8 | | 1967 | 11 | 2 | | 1971 | 8 | 4 | | | Year | ERA | Rank | | 1959 | 2.48 | 2 | | 1960 | 2.79 | 6 | | 1963 | 2.67 | 7 | | 1964 | 2.76 | 7 | | 1966 | 2.56 | 5 | | 1973 | 3.66 | 8 | | | Year | BABIP | Rank | | 1959 | .253 | 4 | | 1962 | .272 | 10 | | 1963 | .242 | 3 | | 1964 | .254 | 1 | | 1966 | .257 | 9 | | 1973 | .244 | 5 | | | Year | WHIP | Rank | | 1958 | 1.26 | 7 | | 1959 | 1.09 | 3 | | 1963 | 1.15 | 7 | | 1964 | 1.14 | 4 | | 1966 | 1.11 | 4 | | 1973 | 1.22 | 8 | |
| Year | K/BB | Rank | | 1958 | 2.55 | 2 | | 1959 | 2.16 | 6 | | 1966 | 2.09 | 7 | | | Year | RA/9 | Rank | | 1958 | 11.89 | 9 | | 1959 | 10.06 | 3 | | 1963 | 10.70 | 10 | | 1964 | 10.60 | 4 | | 1966 | 10.17 | 4 | | | Year | HR/9 | Rank | | 1958 | 0.51 | 4 | | 1959 | 0.32 | 3 | | 1960 | 0.40 | 3 | | 1961 | 0.64 | 9 | | 1964 | 0.41 | 4 | | 1965 | 0.41 | 2 | | 1966 | 0.24 | 1 | | 1968 | 0.54 | 10 | | | Year | H/9 | Rank | | 1959 | 7.26 | 4 | | 1963 | 6.95 | 3 | | 1964 | 7.47 | 3 | | 1966 | 7.69 | 7 | | 1973 | 8.21 | 9 | | | Year | BB/9 | Rank | | 1958 | 2.38 | 3 | | 1959 | 2.53 | 3 | | 1960 | 2.84 | 9 | | 1961 | 3.02 | 10 | | 1966 | 2.29 | 7 | | 1970 | 3.24 | 10 | | 1971 | 2.76 | 6 | | 1973 | 2.78 | 10 | |
| Year | K/9 | Rank | | 1958 | 6.06 | 7 | | 1966 | 4.77 | 9 | | | Year | QS | Rank | | 1958 | 19 | 9 | | 1960 | 22 | 3 | | 1962 | 19 | 8 | | 1963 | 23 | 2 | | 1964 | 23 | 3 | | 1966 | 23 | 3 | | 1968 | 21 | 7 | | 1970 | 25 | 5 | | 1971 | 18 | 4 | | 1973 | 20 | 4 | | | Year | QSP | Rank | | 1959 | .680 | 10 | | 1960 | .786 | 3 | | 1962 | .655 | 8 | | 1963 | .821 | 1 | | 1964 | .793 | 3 | | 1966 | .742 | 5 | | 1968 | .724 | 7 | | 1970 | .694 | 6 | | 1971 | .600 | 4 | | 1973 | .690 | 2 | | | Year | CG | Rank | | 1959 | 8 | 8 | | 1960 | 7 | 4 | | 1961 | 5 | 8 | | 1962 | 7 | 6 | | 1963 | 6 | 4 | | 1964 | 2 | 10 | | 1966 | 5 | 7 | | 1968 | 4 | 10 | | 1970 | 10 | 10 | | 1971 | 3 | 9 | | | Year | CGP | Rank | | 1959 | .320 | 8 | | 1960 | .250 | 4 | | 1961 | .172 | 8 | | 1962 | .241 | 6 | | 1963 | .214 | 5 | | 1964 | .069 | 9 | | 1966 | .161 | 7 | | 1968 | .138 | 10 | |
| Year | SHO | Rank | | 1958 | 1 | 8 | | 1959 | 2 | 7 | | 1961 | 2 | 3 | | 1962 | 2 | 3 | | 1964 | 1 | 5 | | 1966 | 2 | 3 | | 1968 | 1 | 9 | | 1970 | 4 | 8 | | 1971 | 1 | 5 | | 1972 | 1 | 4 | | | Year | GB% | Rank | | 1959 | 0.56 | 2 | | 1961 | 0.55 | 3 | | 1962 | 0.52 | 4 | | 1963 | 0.56 | 2 | | 1966 | 0.52 | 10 | | 1967 | 0.56 | 3 | | 1968 | 0.55 | 5 | | 1970 | 0.56 | 4 | | 1971 | 0.59 | 4 | | 1973 | 0.55 | 6 | | | Year | WAR | Rank | | 1958 | 5.4 | 6 | | 1959 | 5.9 | 7 | | 1960 | 4.7 | 9 | | 1961 | 4.2 | 8 | | 1966 | 6.1 | 2 | | 1968 | 4.1 | 10 | | | |