They have won multiple championships with riders such as Casey Stoner in 2007 and Andrea Dovizioso in recent years.
The competitiveness of a MotoGP bike depends on various factors, including technological advancements, team strategies, rider skill, and other unpredictable variables. Manufacturers continually work on improving their bikes to remain competitive and contend for the title.
To stay up to date with the latest developments and announcements from Ducati regarding their MotoGP program, I recommend following official Ducati channels, news outlets, and MotoGP-related sources for the most accurate and current information.