That's not nearly enough information to make an educated guess but even then, why does it matter? Are you trying to make an upgrade and stay or leave and be a FO decision?

Your chances are exactly 0% until you put your application in and meet the application minimums. If you have 1500 hours but that's all from the blue angels and space shuttle, you're the CEO's favorite nephew with a 4.0 GPA from Harvard and you have the charm of Ryan Seacrest in the interview room yeah you have a better chance at getting hired immediately. If you're at 1500 hours with 10 checkride busts your chances are slim. Anything in between is going to be "it depends". Nobody knows what exactly the magic fomula is, all you'll get is thirdhand, "I heard someone had this many hours when they got hired" with zero context of what that particular candidate's resume looked like or how they did in the interview. All you can do is fly more, improve your resume by checking as many boxes as possible, keep updating your apps, work on interview prep, go to the meet and greets and eventually you'll get the call.