Cal Ripken Jr.
1988 ... the Orioles lost an MLB record 21 consecutive games to start the season.
Orioles
Cal Ripken Jr. played in 2632 consecutive games for the Baltimore Orioles from May 30, 1982 to September 20, 1998.
Cal Ripken Jr.
Check out the 'Consecutive Games Played Streaks' link on this page to see the 15 longest consecutive games played streaks in MLB history.
The ovation for Cal Ripken Jr of the Baltimore Orioles, when he broke Lou Gehrig's record for most consecutive games at 2,131, lasted for 22 minutes and 15 seconds.
The record for the most consecutive games with a home run by a team in Major League Baseball history is 27 games, achieved by the 2019 New York Yankees.
Vinny testaverde
The most consecutive wins to start a season is 13 by the 1982 Atlanta Braves and 1987 Milwaukee Brewers.
The Boston Red Sox have sold out the most consecutive games in MLB history while the Portland Trailblazers have sold out the most consecutive home games in the NBA (and in North America for any sport).
The Boston Red Sox hold the record with 615 consecutive sellouts as of August 14, 2010.
The 1988 Orioles started with 21 consecutive losses, which I believe is the modern record.