List of aviators who became ace in a day

A Bristol F2B crew – Canadian pilot Captain Alfred Atkey and English observer Lieutenant Charles Gass – became "ace in a day" twice in the same week.

[3] The first aviators to ever achieve "ace in a day" were pilot Julius Arigi and observer/gunner Johann Lasi of the Austro-Hungarian air force, on 22 August 1916, when they downed five Italian planes.

[4] The first single pilot (as opposed to double aviators, as is the case with the previously mentioned Arigi and Lasi) was World War I German flying ace Fritz Otto Bernert.

During the Indo-Pakistani War of 1965, Muhammad Mahmood Alam of Pakistan Air Force downed five aircraft in a single sortie on 7 September 1965 all in less than a minute to establish an aerial record.

Voroshylov had shot down two Russian cruise missiles the day prior, though this has yet to be officially verified by independent sources.

Julius Arigi , the first "ace in a day"
Hiromichi Shinohara, double-ace in a day
Walter Nowotny, seventeen-time ace in day
Hans-Joachim Marseille, eight-time ace in day
Günther Rall , three-time ace in a day
David McCampbell , two-time ace in a day
Hans Wind , two-time ace in a day
Jorma Sarvanto, ace in a day on 6 January 1940
Clive Caldwell, ace in a day on 5 December 1941.
Edward O'Hare, ace in a day on 20 February 1942
Shigetaka Ōmori, ace in a day on 4 June 1942
James E. Swett, ace in a day on 7 April 1943
MacArthur Powers (left) and Richard E. Duffey, both ace in a day on 18 April 1943
Pappy Boyington, ace in a day on 16 September 1943
Fred J. Christensen, ace in a day on 7 July 1944
George Preddy, ace in a day on 6 August 1944
William A. Shomo, ace in a day on 11 January 1945