This case report will feature a 2 year old, Thoroughbred racehorse who presented to Cornell University Equine Hospital on 10/24/2010. Chief complaint consisted of poor performance and a loud noise made during exercise. The referring veterinarian passed an endoscope and diagnosed recurrent laryngeal neuropathy. On presentation no significant physical exam abnormalities were found and a standing endoscopic examination confirmed the diagnosis of grade III laryngeal hemiplegia most likely due to recurrent laryngeal neuropathy. Laryngoplasty with left ventriculectomy and right aryepiglottic fold resection was recommended and performed. Prognosis for return to successful racing is good, although there are many complications possible post-operatively.