» April 6, 1970:
In the traditional opener in Washington DC, Detroit's Mickey Lolich shuts out the Senators, 5–0. Dick Bosman is the losing pitcher.
» August 14, 1970: For a record-tying 4th time, Cesar Tovar has the Twins only hit, a single. This time Washington's Dick Bosman is the pitcher, winning 1–0.
» September 2, 1970:
In the first six innings, Rangers starter Sam McDowell walks six Nats batters, five intentionally. Three of the intentional passes go to Frank Howard in his first three at bats, twice when he leads off the inning. McDowell moves to 1B in the 6th inning, with two on and no outs, and Dean Chance comes in allowing both runners to score. McDowell comes back to the mound to finish, losing 4–1 to Dick Bosman.
» April 5, 1971: With 45,000 fans on hand at RFK Stadium, the Senators beat the Oakland A's, 8–0, behind the pitching of Dick Bosman. The loser is Vida Blue, who allows four runs in less than three innings. This will be the last Opening Day in Washington.
» September 30, 1971:
The Senators draw 14,000 for their final game in Washington, with another 4,000 crashing. Dick Bosman gives up homers to Bobby Murcer, Roy White, and Rusty Torres and the Nats are down 5–1 in the 6th. Mike Kekich then grooves a fastball for Frank Howard, who parks his 26th homer, and thanks ThurmanMunson as he crosses the plate. The Senators take a 7–5 lead, and after Murcer makes the 2nd out in the 9th, fans swarm onto the field, causing the game to be forfeited to the Yanks, 9–0. All records stand but reliever Paul Lindblad losses the W by not recording the 3rd out, batter Horace Clarke. Of the Senators, Jeff Burroughs will be the last to retire, finishing up in 1985.
» July 19, 1974: Cleveland's Dick Bosman no-hits Oakland 4–0. He has no one but himself to blame for not picking up a rare perfect game. His throwing error in the 4th puts the only A's runner on base. The two clubs combine to set an American League record with two runners left on base.
» May 20, 1975: The Indians trade pitchers Dick Bosman and Jim Perry to the A's for P Blue Moon Odom and cash.