He kept his promise. He told the story. The rest is the Pacific, which keeps what it keeps.
## The Distances: Measured and Unmeasured
The estimated drift distance of approximately 5,500 to 6,700 miles — 8,900 to 10,800 kilometers — is worth examining carefully, because it illustrates a point about the nature of the evidence that runs through this entire story.
The distance is estimated, not measured. There was no GPS device recording the boat’s position at intervals throughout the drift. There was no satellite tracking transponder transmitting coordinates to a shore station. The path the boat took across the Pacific is unknown in its specific geometry; what is known is the start point and the end point. The estimated distance is derived from the oceanographic models that simulate what path a boat starting in that location at that time, subject to observed current and wind conditions, would most likely have taken.
Different sources cite slightly different figures for the distance — some say 5,500 miles, some say 6,700 miles, some cite metric figures that translate to numbers in that range. These are not competing measurements; they are estimates derived from modeling assumptions that vary slightly. The consistent conclusion is that the distance was thousands of miles and the drift was consistent with one of the longest solo open-ocean survival voyages in the documented record.
The word “estimated” matters because it is the honest descriptor. Claims that Alvarenga drifted exactly 6,000 miles, or exactly 5,500 miles, present as precise what is inherently approximate. The distance is a model output, not a measurement. It is credible and consistent with the physical evidence, and it is an estimate.