The article presents a case study of a 33-year-old female with recurrent episodes of wide‐QRS tachycardia. Topics include responsive to intravenous adenosine referred to the arrhythmia center for undergoing an electrophysiological study (EPS); and constant P‐QRS intervals during WQR not supporting the hypothesis of isorhythmic competition with an accelerated idioventricular rhythm (AIVR).