Dodgers closer Kenley Jansen retired 27 straight batters from July 23-Aug. 8 this season.
The last reliever to retire more than 27 batters in a row was the Giants' Sergio Romo, who got 31 consecutive hitters out from July 4-Aug. 6, 2011.
Uehara has gone 27 innings without allowing a run, his longest streak in either the Majors or Japan.
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.