RedHawks pitching tied a season high by giving up 11 walks in the game.
New Orleans starting pitcher Brian Flynn (2-9) took the loss, allowing two runs and seven hits over 6 2/3 innings. The lefthander struck out six and walked three.
The RedHawks' series with the Zephyrs continues at 7 p.m. Friday. Right-hander Jake Buchanan (1-0, 3.60 ERA) is scheduled to start for Oklahoma City, while left-hander Duane Below (4-3, 2.64) will take the mound for New Orleans.
After wrapping up the series with New Orleans, Oklahoma City will head to Round Rock for a three-game set before returning home to face New Orleans again on July 11.