2021 Arizona Diamondbacks -- 22 games (and counting)
Diamondbacks pitcher Humberto Castellanos reacts after allowing a grand slam to the Giants' Mike Yastrzemski during a loss in San Francisco on June 15. Entering June 17 the D-backs have lost 22 straight road games, tying the major league record with the 1963 New York Mets and 1943 Philadelphia Athletics. (Jeff Chiu/AP)
1963 New York Mets -- 22 games
Willie Mays of the San Francisco Giants, sitting on a bicycle, and Casey Stengel, manager of the New York Mets, are seen in New York's Polo Grounds during a tribute to Mays on May 3, 1963.
