Shawn Chacon of the Astros has run his streak of starts at the beginning of the season without a decision to nine games.
Chacon gave up eight runs, including three home runs (two by Josh Hamilton and one by Jarrod Saltalamacchia) and left after 3 1/3 innings trailing 8-2.
But the Astros scored five times in the fifth off of Sidney Ponson and had the potential tying run thrown out at the plate to end the inning. In the sixth, Hideki Kazuo Matsui had a two-out single to score Michael Bourn to tie the game.
The last pitcher in the majors to make nine straight starts without a decision was Al Downing of the Dodgers who had a streak that went on and off, interspersed with relief appearances, from the end of 1974 to the end of 1976.
John D'Acquisto and Dick Stigman had streaks of 10 starts without a no-decision. Randy Lerch is the only pitcher that I could find with a streak of 10 straight starts without an intervening relief appearance with a no-decision. You can see the streaks here.