| 01/01/1952 |
Joined the Team 48 Sky Chiefs. |
| 05/05/1952 |
Named to the 1952 Geiyo Islands League for the Imabari Ginners. |
| 01/01/1953 |
OSA scouting updated ratings (potential): Stuff: 20 (40); Movement: 20 (35); Control: 20 (35). |
| 03/01/1953 |
Successfully completed training to make one of his poorer pitches more usable at the Tokyo Central High School Sky Chiefs development complex. |
| 03/04/1953 |
Injured (forearm cramp),day-to-day for 4 days. |
| 04/13/1953 |
Injured (back spasms),day-to-day for one week. |
| 10/16/1953 |
Unsuccessfully completed training to improve his infield defense at the Tokyo Central High School Sky Chiefs development complex. |
| 01/01/1954 |
OSA scouting updated ratings (potential): Stuff: 20 (40); Movement: 20 (30); Control: 20 (25). |
| 01/01/1955 |
OSA scouting updated ratings (potential): Stuff: 25 (40); Movement: 25 (35); Control: 20 (25). |
| 03/07/1955 |
Named to the 1955 World Youth Championship for the Chinese Taipei. |
| 04/08/1955 |
Injured (back spasms),day-to-day for 3 days. |
| 04/13/1955 |
Injured (elbow strain),out for 5 weeks. |
| 05/14/1955 |
Suffered setback in recovery from injury, will miss another 1-2 weeks. |
| 07/01/1955 |
Was not drafted and joined the Kaohsiung University Golden Panthers. |