For some reason, the people who circumnavigate or cross oceans in power boats are not as "clubby" as Sailors (exception is the nordhavn set).
Bruce Kessler circumnavigate around 2000 in a 62' Northern Marine
I forget his name, but I spent a half day with the owner of one of the very first diesel ducks built by Seahorse Marine in China. Owner brought it to California on her own bottom. He was a self admitted novice and single handed.
A sistership to my Willard 36 went from California to Hawaii (2200 nms) in 1987 burning just 335 gallons of diesel
I recall an early PMM article about an owner of a GB42 who crossed to Hawaii single handed. He removed one prop and ran on one engine. Hard to believe, but I seem to recall that, mid ocean, he removed the prop and installed the other to balance engine hours.
I also recall PMM article from early 2000s nordhavn 40 that went from acupulco to the Marquesa Islands, something like 3000 nms, an incredible trip in my mind.
Also aabout 2000, our own Steve d'antonio and PMMs Bill Parletore took a new Willard 30 from the Zimmerman yard in Virginia to Bermuda (700 nms).
A couple years ago, there was a kiwi family on a trawler who had the misfortune of a pirate attack in Honduras (father, around 60, was tragically killed). About 62-foot steel trawler as I recall, and they were on their way back to NZ.
And these are just cross ocean treks I know of.
Unlike sailboats, there are no media outlets for Trans oceanic powerboats except manufacturers marketing efforts such as PAE. Despite its moniker, a large percentage of boats featured in Passagemaker Magazine are not designed to make this type of trip. Contrast that to a handful of sail-oriented rags that feature long passage cruisers (personal favorite is Latitude 38 - free, with PDFs download able online - out of San Francisco, which is collecting a registry of circumavigators).
If a survey of boats represented in this TF is representative, on a tiny percentage of "trawlers" are equipped for a multi-day open ocean journey.