Austin Inno’s Tech Madness bracket started in March with 64 Austin startups. Now, it has to come down to just one champion.

After several close contests and more than 50,000 votes cast, the community narrowed it down to the Final Four. Opcity squared off with Ballogy, which was the Cinderella story of the tournament, upsetting bigger startups along the way. And TurnKey Vacation Rentals matched up with YouEarnedIt.

Opcity edged Ballogy in a close contest decided by just 179 votes — or 51.6 percent to 48.4 percent. Meanwhile, TurnKey Vacation Rentals ran away with a big win, landing 68 percent of the vote in its contest.

Now, TurnKey Vacation Rentals and Opcity are going head-to-head in the championship match.

Remember, this contest asks you to vote for the company you’d most like to invest in. That might mean the company that would give you the biggest return — or it might mean the one that could give you the quickest return. Or maybe you’re more into who is on the team and supporting them — not just looking for hypothetical ROI.

Voting is open until 11 p.m. Thursday evening.