Hello derekjbj, thanks for your question.
It’s hard to make a pronouncement as to your potential competitiveness without a complete picture (especially without a GMAT score), but I’ll comment broadly.
I think your competitiveness will come down to the quality of your work experience. Can you draw upon “moments” when you truly led: influenced individuals and organizations, drove results, took initiative?
You mentioned any extracurricular activities – what you’ve done more recently has more weight than what you did in university/school.
You haven’t mentioned post-MBA goals. You will need to demonstrate to the admissions committees that your desired career path necessitates an MBA. Identify the specific gaps that stand between you and your goals (knowledge, skills, experiences, network, etc.) and show how business school would directly address those gaps.
Hope this helps.
Best of luck,
Brian