Feb. 24, 2020 Air Force selects 1,184 in senior master sergeant promotion cycle; list posts March 3 JOINT BASE SAN ANTONIO-RANDOLPH, Texas – Air Force officials have selected 1,184 master sergeants for promotion to senior master sergeant out of 15,544 eligible for a selection rate of 7.62 percent in the 20E8 promotion cycle. While this selection rate is lower than in previous years, the 20E8