A series of Navy radio transmitters were used to spread the ballgame results worldwide, as the Navy team defeated Army 11-1 on May 30, 1920. Only the relatively low powered transmitter at the ballfield in Annapolis was capable of audio transmissions--high-powered radiotelegraph stations relayed the results in Morse code throughout the world.
Popular Mechanics, August, 1920, page 208:
RADIO REPORTS ARMY-NAVY BALL GAME TO WORLD
As a demonstration of the marvels of modern radiotelephony, the manner in which the Memorial Day ball game between the army and the navy, at Annapolis, was reported to the wide world, left nothing to be desired. More than 50 War Department officials and clerks, in a room 60 ft. square at Washington, heard the report of every play and every decision of the umpire as clearly as though they had occupied a grandstand. The wireless transmitter was set up in the baseball field; the vacuum-tube receiver, connected to a loud-speaking telephone, occupied a table in the big room, 30 miles away.
Spectacular as this performance was, the crowning achievement of the occasion was the dissemination of the report, by relay, to all parts of the world. As fast as the plays were called and bulletined on a board in the office, a second operator sent them back to the high-power station at Annapolis, to be transmitted to San Diego, Calif., and thence distributed to the island possessions, Alaska, China, and Siberia. Meanwhile the Sayville station was sending them to the West Indies and the Canal Zone, and all the ships flying the United States flag, from home waters to Constantinople and the Black Sea, were breathlessly listening in for tidings of the great game.
