What is the longest range single pilot aircraft?

Question

Is there one that has a range of over 2500 nautical miles?

Answer 1

The U2 is typically a single-pilot aircraft. I don't know exactly what it's un-refueled range is, but it had to be enough for it to spy on the USSR, etc.

Non-military, some corporate jets can still be flown single pilot under "part 91" but I don't think any have a range of 2,500 NM or over.

Answer 2

The Global Flyer flew almost 26,000 miles, with just one pilot

Or are you looking for something a bit more... practical?