Indiana were ahead 12-11 about 3 minutes into Q1. Then they fell apart and gave up turnover after turnover. OKC had an 11-0 run in less than 3 minutes.
Outside of that 11-0 run, the score has been fairly even. Indy down 14 at halftime so they were only outscored by 3 for the rest of the half. It was just that 2:30 minutes were they fell apart. And gave up turnover after turnover for easy transition finishes and paint finishes off of drives.