| Player History |
| 12-15-1952 | Drafted in the 1952 first-year player draft (Round 1, Pick 3, 3rd overall Pick) by the Washington Senators. |
| 12-15-1952 | Released by the Washington organization. |
| 01-01-1953 | SISA scouting updated ratings (potential): Stuff: 33 (36); Movement: 83 (79); Control: 55 (45). |
| 02-08-1953 | Signed a 2-year contract worth a total of $4,800,000 with the Milwaukee Braves organization. |
| 02-09-1953 | Was traded by the Milwaukee Braves to the Washington Senators in exchange for . |
| 05-01-1953 | Wins the CCBLAAA AL Pitcher of the Month Award. |
| 05-22-1953 | Pitches a 4-hit shutout against the Pawtucket Red Sox with 8 strikeouts and 1 BB allowed! |
| 06-14-1953 | Pitches a 4-hit shutout against the Toledo Mud Hens with 5 strikeouts and 2 BB allowed! |
| 07-01-1953 | Wins the CCBLAAA AL Pitcher of the Month Award. |
| 07-12-1953 | Was selected to the 1953 CCBL Triple A All-Star Game. |
| 10-30-1953 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1954 | SISA scouting updated ratings (potential): Stuff: 38 (36); Movement: 83 (79); Control: 50 (45). |
| 04-05-1954 | Injured (back spasms), day-to-day for 1-2 weeks. |
| 10-29-1954 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1955 | SISA scouting updated ratings (potential): Stuff: 38 (36); Movement: 83 (79); Control: 50 (45). |
| 06-17-1955 | Pitches a 4-hit shutout against the Cleveland Indians with 8 strikeouts and 0 BB allowed! |
| 07-22-1955 | Pitches a 2-hit shutout against the Baltimore Orioles with 6 strikeouts and 2 BB allowed! |
| 07-27-1955 | Injured (ruptured ulnar collateral ligament (elbow)), out for 7 months. |
| 01-01-1956 | SISA scouting updated ratings (potential): Stuff: 37 (36); Movement: 81 (79); Control: 44 (45). |
| 04-05-1956 | Pitches a 4-hit shutout against the New York (A) Yankees with 8 strikeouts and 3 BB allowed! |
| 05-22-1956 | Injured (strained back muscle), day-to-day for 1-2 weeks. |
| 06-18-1956 | Was selected to the 1956 Cooperstown Chronicle Baseball League All-Star Game. |
| 07-11-1956 | Pitches a 5-hit shutout against the Cleveland Indians with 4 strikeouts and 1 BB allowed! |
| 09-06-1956 | Injured (back spasms), out for 2 weeks. |
| 09-19-1956 | Pitches a 3-hit shutout against the Chicago (A) White Sox with 5 strikeouts and 2 BB allowed! |
| 09-29-1956 | Won the 1956 Cooperstown Chronicle Baseball League World Championship with the Washington Senators! |
| 10-12-1956 | Wins the 1956 CCBL AL Cy Young Award. |
| 10-23-1956 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1957 | SISA scouting updated ratings (potential): Stuff: 34 (36); Movement: 81 (79); Control: 45 (45). |
| 06-10-1957 | Injured (strained abdominal muscle), day-to-day for 2 weeks. |
| 09-18-1957 | Pitches a 3-hit shutout against the Chicago (A) White Sox with 8 strikeouts and 2 BB allowed! |
| 10-04-1957 | Won the 1957 Cooperstown Chronicle Baseball League World Championship with the Washington Senators! |
| 10-25-1957 | Received a 1-year contract worth a total of $2,028,600 through arbitration. |
| 01-01-1958 | SISA scouting updated ratings (potential): Stuff: 37 (36); Movement: 81 (79); Control: 44 (45). |
| 04-07-1958 | Pitches a 4-hit shutout against the New York (A) Yankees with 3 strikeouts and 2 BB allowed! |
| 05-11-1958 | Pitches a 3-hit shutout against the Chicago (A) White Sox with 7 strikeouts and 3 BB allowed! |
| 09-21-1958 | Pitches a 3-hit shutout against the Boston Red Sox with 5 strikeouts and 2 BB allowed! |
| 10-31-1958 | Received a 1-year contract worth a total of $1,622,880 through arbitration. |
| 01-01-1959 | OSA scouting updated ratings (potential): Stuff: 36 (36); Movement: 78 (79); Control: 48 (46). |
| 05-14-1959 | Pitches a 3-hit shutout against the Kansas City Athletics with 7 strikeouts and 1 BB allowed! |
| 06-01-1959 | Wins the CCBL AL Pitcher of the Month Award. |
| 06-22-1959 | Was selected to the 1959 Cooperstown Chronicle Baseball League All-Star Game. |
| 10-30-1959 | Received a 1-year contract worth a total of $1,950,000 through arbitration. |
| 01-01-1960 | OSA scouting updated ratings (potential): Stuff: 37 (36); Movement: 78 (79); Control: 49 (46). |
| 04-18-1960 | Pitches a 6-hit shutout against the Kansas City Athletics with 10 strikeouts and 0 BB allowed! |
| 05-27-1960 | Pitches a 2-hit shutout against the Chicago (A) White Sox with 10 strikeouts and 3 BB allowed! |
| 06-01-1960 | Wins the CCBL AL Pitcher of the Month Award. |
| 06-20-1960 | Was selected to the 1960 Cooperstown Chronicle Baseball League All-Star Game. |
| 07-01-1960 | Wins the CCBL AL Pitcher of the Month Award. |
| 07-23-1960 | Signed a 4-year contract extension worth a total of $29,200,000 with the Washington Senators organization. |
| 08-13-1960 | Pitches a 6-hit shutout against the Kansas City Athletics with 3 strikeouts and 2 BB allowed! |
| 10-14-1960 | Wins the 1960 CCBL AL Cy Young Award. |
| 01-01-1961 | OSA scouting updated ratings (potential): Stuff: 35 (36); Movement: 77 (79); Control: 48 (47). |
| 05-01-1961 | Wins the CCBL AL Pitcher of the Month Award. |
| 07-01-1961 | Wins the CCBL AL Pitcher of the Month Award. |
| 08-21-1961 | Pitches a 2-hit shutout against the Boston Red Sox with 7 strikeouts and 2 BB allowed! |
| 09-01-1961 | Wins the CCBL AL Pitcher of the Month Award. |
| 10-17-1961 | Wins the 1961 CCBL AL Gold Glove Award at P. |
| 10-19-1961 | Injured (pinched nerve (neck)), out for 2 weeks. |
| 01-01-1962 | OSA scouting updated ratings (potential): Stuff: 35 (35); Movement: 79 (79); Control: 48 (47). |
| 04-18-1962 | Injured (strained elbow ligament), out for 4 weeks. |