By now, Loewenhardt was locked into an "ace race" with Ernst Udet and Lothar von Richthofen for the honor of being the top scoring ace in their fighter wing. The rivalry between Loewenhardt and the younger Richthofen was a friendly one, as they often flew as wingmen. "Jasta 10" belonged to "The Flying Circus", and when the wing commander's spot came open on 29 June 1918, "Oberleutnant" Loewenhardt was tapped for temporary command of it. By then, his tally stood at 27. When he surrendered the JG I command on 6 July, it had risen to 34. By the end of July 1918, Loewenhardt's total was 48: 9 balloons and 39 airplanes.