On 30 July, "Stephen Potter" joined TG 58.4 which, from 31 July to 8 August, provided air support for United States troops fighting on Guam. The destroyer steamed from Eniwetok on 30 August, rendezvoused with TG 38.2 on 3 September, and screened the fast carriers as their aircraft pounded the Philippines from 9 to 25 September. Strikes were launched against Mindanao, Luzon, Cebu, Leyte, Angaur, and Manila Bay. The task group was at Ulithi from 1 to 6 October when it again got underway.