The Mark Twain has achieved remarkable results in various regattas and races, particularly the Sydney to Hobart Yacht Race. Here are some of the notable achievements:

• 1971 — Sydney–Hobart: Finished successfully (first Hobart completion for Mark Twain).

• 1972 — One Ton Cup (international): Represented Australia under skipper Jock Sturrock (selection-race pattern noted: 5–3–2–1–1).

• 1973 — Sydney–Hobart: Won the “One Ton Cup division” (as stated in the timeline).

• 1979 — Sydney–Nouméa Race: Won the race; then backed up for the Hobart the same season.

• 1984 — Sydney–Hobart: 42nd on elapsed time out of 151 starters.

• 1990 — Sydney–Hobart: Elapsed time noted as ~4 days 7 hours.

• 1998 — Sydney–Hobart (the deadly year): Finished; one of 44 finishers overall. 33rd across the line (elapsed).

• 2001 — Sydney–Hobart: Reached 24 Hobart starts, tied the all-time record at that time.

• 2002 — Sydney–Hobart: 25th start (first yacht ever to reach 25 starts); received a recognition medallion in Hobart.

• 2018 — Sydney–Hobart: Returned and finished; oldest boat in the fleet at 47 years old.