MAERSK WILLEMSTADT
254 metres of container ship · 19 years on the water
formerly SPIRIT OF SHANGHAI
1st of 8 · 08:14 · 17 April 2026+ Follow this boatSign in to follow her and keep her in your corner.Personal best06:45Archive timing · 3.7 km course time
Typical course time08:55Median of 35 archive runs
Daily race record9–26Wins – losses · 35 starts
Stare-down record22–13Wins – losses · all opponents
Everything on file.
- Official name
- MAERSK WILLEMSTADT
- MMSI
- 563148200
- IMO
- 9362401
- Call sign
- 9V7729
- Flag
- SG
- Type
- container ship (from the liner schedule)
- Class
- container
- Built
- 2007 · 19 years old
- Length
- 254 m
- Beam
- 32 m
- Gross tonnage
- 41,483
- Deadweight
- 53,160 t
- Capacity
- 3,752 TEU
- AIS ship type
- 71
Particulars come from her AIS broadcast and the sourced facts ledger. A type decided from her name or her operator is a guess and is labelled as one.
Two measurements, kept apart.
- Window best
- none
- Archive best
- 06:45 · Archive timing, 2021 to 2026
- Best race score, window
- none
- Best race score, archive
- none
The window receiver times a gate to about a second; the national archive carries one fix a minute, interpolated to about two. Her two bests are two different measurements and are never ranked against each other.
What she holds.
- Slowest and most majestic
- 23:07 · Box ships, Inbound, open season, Archive
How fast she’s gone.
- Observed top speed
- 21.8 kn · 13 Apr 2026 · off Cape Hatteras, NC · NOAA archive
From our own position archives, with reasonableness checks: a plausible top speed over a corroborated window, a direct leg between two named places. A bound carries no second fix to confirm it and is labelled as one.