Moustakas' manager at Northwest Arkansas, Brian Poldberg, was named Manager of the Year in an announcement by Texas League president Tom Kayser.
Moustakas was with the Naturals from April 22 through July 17 and led the Texas League in the three Triple Crown categories with a .347 average, 21 home runs and 76 RBIs when he was promoted to Omaha.
"He was phenomenal," Poldberg said from Tulsa. "He missed the first 16 games of the season and by midseason he was leading the league in all the categories. And I think he's got 108 RBIs between Omaha and here despite missing that many games. So he's having a spectacular year and I'm glad to see him continue to do well."
With eight games left, Poldberg had the first-place Naturals at 80 victories overall. They won the first-half division title and were leading the second half by three games.
Poldberg has managed the Naturals to a 42-20 record at Arvest Park at Springdale, Ark., near the home of Royals owner David Glass who attends many games.
"It's kind of nice because he gets to see what's coming up and there are a lot of positives here," Poldberg said.