| 06/28/2026 |
Entered the Major League Baseball as an international amateur free agent from North Korea. |
| 07/01/2026 |
Signed a minor league contract ($0 bonus) out of North Korea with the Seattle Mariners organization. |
| 01/01/2027 |
OSA scouting updated ratings (potential): Stuff: 35 (60); Movement: 30 (55); Control: 20 (65). |
| 01/01/2028 |
OSA scouting updated ratings (potential): Stuff: 40 (50); Movement: 30 (50); Control: 30 (55). |
| 10/13/2028 |
Wins the 2028 Pioneer Baseball League World Series with the Victoria Capitals! |
| 01/01/2029 |
OSA scouting updated ratings (potential): Stuff: 40 (50); Movement: 35 (50); Control: 35 (55). |
| 11/01/2029 |
Wins the 2029 New York-Penn League A- World Series with the Everett AquaSox! |
| 11/04/2029 |
Wins the 2029 Appalachian League World Series with the Seattle (APP) Mariners! |
| 01/01/2030 |
OSA scouting updated ratings (potential): Stuff: 50 (55); Movement: 40 (50); Control: 45 (55). |
| 05/13/2030 |
Injured (Virus), day-to-day for 3 days. |
| 01/01/2031 |
OSA scouting updated ratings (potential): Stuff: 60 (65); Movement: 40 (45); Control: 45 (55). |
| 01/01/2032 |
OSA scouting updated ratings (potential): Stuff: 60 (65); Movement: 40 (50); Control: 50 (55). |
| 01/01/2033 |
OSA scouting updated ratings (potential): Stuff: 55 (60); Movement: 45 (50); Control: 55 (55). |
| 02/21/2033 |
Signed a 1-year minor league contract extension with the Seattle Mariners organization. |
| 09/01/2033 |
Wins the IL AL Pitcher of the Month Award. |
| 01/01/2034 |
OSA scouting updated ratings (potential): Stuff: 55 (60); Movement: 45 (45); Control: 55 (55). |
| 11/23/2034 |
Became a minor league free agent. |
| 12/21/2034 |
Signed a minor league contract with the New York Yankees organization. |
| 01/01/2035 |
OSA scouting updated ratings (potential): Stuff: 55 (60); Movement: 50 (50); Control: 55 (60). |
| 01/14/2035 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 12/25/2035 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 01/01/2036 |
OSA scouting updated ratings (potential): Stuff: 60 (60); Movement: 45 (45); Control: 60 (60). |
| 01/01/2037 |
OSA scouting updated ratings (potential): Stuff: 65 (70); Movement: 45 (45); Control: 55 (60). |
| 03/01/2037 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 01/01/2038 |
OSA scouting updated ratings (potential): Stuff: 65 (65); Movement: 45 (45); Control: 60 (60). |
| 10/28/2038 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 01/01/2039 |
OSA scouting updated ratings (potential): Stuff: 65 (65); Movement: 45 (45); Control: 60 (60). |
| 08/11/2039 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 01/01/2040 |
OSA scouting updated ratings (potential): Stuff: 65 (65); Movement: 40 (40); Control: 60 (60). |
| 10/09/2040 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 12/01/2040 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 01/01/2041 |
OSA scouting updated ratings (potential): Stuff: 65 (65); Movement: 40 (40); Control: 60 (60). |
| 06/16/2041 |
Was selected to the 2041 Midwest League All-Star Game. |
| 11/30/2041 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 01/01/2042 |
OSA scouting updated ratings (potential): Stuff: 65 (65); Movement: 45 (45); Control: 60 (60). |
| 01/01/2043 |
OSA scouting updated ratings (potential): Stuff: 65 (65); Movement: 45 (45); Control: 60 (60). |
| 01/01/2043 |
Signed a 1-year minor league contract extension with the New York Yankees organization. |
| 01/01/2044 |
OSA scouting updated ratings (potential): Stuff: 65 (65); Movement: 45 (45); Control: 60 (60). |
| 11/30/2044 |
Became a minor league free agent. |
| 01/01/2045 |
OSA scouting updated ratings (potential): Stuff: 55 (55); Movement: 45 (45); Control: 60 (60). |
| 04/18/2045 |
Signed a minor league contract with the Chicago White Sox organization. |
| 11/28/2045 |
Became a minor league free agent. |
| 01/01/2046 |
OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 50 (50); Control: 60 (60). |
| 12/04/2046 |
Signed a minor league contract with the Chicago White Sox organization. |