Kurtz was promoted to Double-A Midland on Monday, Martin Gallegos of MLB.com reports.
Kurtz will skip over High-A Lansing and jump directly to Midland after batting .400 with four home runs, 12 RBI and 11 runs scored over 25 at-bats on seven games with Single-A Stockton. The 21-year-old will look to continue his impressive early success at Double-A.