| 12/17/2012 | Joined the Chiba Lotte Marines. |
| 01/01/2013 | OSA scouting updated ratings (potential): Stuff: - (10); Movement: - (15); Control: - (10). |
| 04/27/2013 | Pitches a 3-hit shutout against the Hokkaido Nippon-Ham Fighters with 11 strikeouts and 0 BB allowed! |
| 05/10/2013 | Injured (neck stiffness), day-to-day for 6 days. |
| 05/23/2013 | Was selected to the 2013 Nippon Baseball League All-Star Game. |
| 06/13/2013 | Strikes out 17 against the Fukuoka SoftBank Hawks. |
| 07/09/2013 | Strikes out 17 against the ORIX Buffaloes. |
| 08/01/2013 | Wins the Pro Feeder PL Pitcher of the Month Award. |
| 10/28/2013 | Wins the 2013 Pro Feeder PL Cy Young Award. |
| 12/17/2013 | Released by the Chiba Lotte Marines. |
| 12/17/2013 | Drafted in the 2013 first-year player draft (Round 1, Pick 1, 1st overall pick) by the Washington Capitalists. |
| 12/19/2013 | Signed a minor league contract with the Washington Capitalists organization with a signing bonus of $6,220,000. |
| 01/01/2014 | OSA scouting updated ratings (potential): Stuff: - (10); Movement: - (14); Control: - (10). |
| 04/07/2014 | Named the #1 prospect in the ABL |
| 09/19/2014 | Injured (torn UCL (Tommy John surgery)), out for 14 months. |
| 01/01/2015 | OSA scouting updated ratings (potential): Stuff: - (17); Movement: - (16); Control: - (17). |
| 04/06/2015 | Named the #1 prospect in the ABL |