Listed at 5 feet 11 inches (1.80 m) tall and 177 pounds (80 kg), Bertaina batted and threw left-handed.

[3] In 1962, the Orioles assigned Bertaina to the Aberdeen Pheasants of the Class-C Northern League, where he had a 13–10 record and 3.40 ERA.

[3] In Kansas City, he started and gave up two earned runs in seven innings pitched, but did not receive a decision in the 5–2 Orioles victory.

[8] On September 12, he one-hit the Kansas City Athletics, winning 1-0, while opposing losing pitcher Bob Meyer allowed the Orioles just one hit as well.

[9][10] This was the fourth double one-hitter pitched in the modern era (since 1901) in MLB history and to date, the most recent.

[1][11] In 1967, he had pitched in five games for the Orioles when he was traded on May 29 to the Washington Senators, along with rookie slugger Mike Epstein, for veteran left-handed pitcher Pete Richert.

[1] With both Baltimore and Washington in 1967, he went 7–6 with a 2.99 ERA and a career-high 86 strikeouts,[1] while tying for ninth in the American League with four shutouts.

[5] In a seven-year major league career, Bertaina posted a 19–29 record with 3.84 ERA in 100 pitching appearances, including 66 starts, five shutouts, six complete games and 10 games finished, giving up 208 runs (176 earned) on 399 hits, while striking out 280 and walking 214 in 413 innings of work.