John Cowan leads the Republican primary runoff for Georgia's 11th Congressional District at 66.5% implied probability, ahead of Rob Adkerson at 26%, following the May 19 primary where Cowan captured 42.6% to Adkerson's 21.7%. Cowan, a neurosurgeon and former GA-14 candidate, benefits from stronger first-round support and local name recognition in the open seat race to replace retiring Rep. Barry Loudermilk. Adkerson, Loudermilk's former chief of staff, holds the incumbent's endorsement and insider ties but trails after a more fragmented field. The June 16 runoff outcome hinges on voter consolidation among remaining primary supporters, with recent Atlanta Press Club debates highlighting contrasts on economic policy, healthcare, and alignment with national Republican priorities. Other listed candidates received negligible primary support.