Contender, the largest male great white shark ever documented in the Atlantic Ocean, is once again a subject of scientific mystery following his latest location ping. The massive shark, weighing nearly 1,700 pounds and measuring close to 14 feet, transmitted a signal from the Outer Banks on Thursday, June 25, according to OCEARCH's global shark tracker. This ping, classified as a Z-ping, indicates the shark briefly surfaced but not long enough for researchers to pinpoint its exact coordinates.
First tagged off the Florida-Georgia coast in January 2025, Contender has been instrumental in providing real-time data for migration research and ocean conservation efforts. The SPOT satellite tag attached to his dorsal fin transmits a location signal when the shark breaks the surface, completing a circuit.
"If the shark stays at the surface for 10, 20, 30 seconds, we’ll get a good fix on where the shark is," explained OCEARCH Chief Scientist Dr. Robert Hueter. However, a Z-ping, like the one recently recorded, means the transmission was too brief for a precise location. "It’s really a miracle of science," Hueter added.
Contender's last confirmed location prior to the recent Z-ping was in the Outer Banks in April. Researchers and the public can follow the movements of Contender and other tagged marine animals in real-time through the OCEARCH Global Shark Tracker app.