Omaha had off on Wednesday, as they start a four-game series in Colorado Springs on Thursday.
NW Arkansas has now won four in a row and have guaranteed themselves a series win over Springfield, as the Naturals won Wednesday afternoon by a 5-0 score.
Andy Ferguson earned his second win of the season and lowered his ERA to a miniscule 0.45. He allowed two hits and walked two over six scoreless innings. He struck out six.
Ali Williams was activated from the DL and allowed a hit over his scoreless inning of work.