Photo: kees torn · CC BY-SA 2.0
SEASPAN HARMONY
367 metres of container ship · 15 years on the water
formerly COSCO HARMONY
2nd of 5 · 08:35 · 6 July 2025+ Follow this boatSign in to follow her and keep her in your corner.Personal best08:09Archive timing · 3.7 km course time
Typical course time10:10Median of 19 archive runs
Daily race record0–19Wins – losses · 19 starts
Stare-down record11–12Wins – losses · all opponents
Everything on file.
- Official name
- SEASPAN HARMONY
- MMSI
- 563277400
- IMO
- 9472177
- Call sign
- 9VMX6
- Flag
- SG
- Type
- container ship (from its AIS ship-type code)
- Class
- container
- Built
- 2011 · 15 years old
- Length
- 367 m
- Beam
- 48 m
- Gross tonnage
- 141,823
- Deadweight
- 140,453 t
- Capacity
- 13,100 TEU
- AIS ship type
- 70
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
- 08:09 · 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.
None.
How fast she’s gone.
- Observed top speed
- 20.4 kn · 25 Jan 2026 · off Oakland, CA · NOAA archive
- Fastest leg
- New York, NY to Savannah, GA · 108 h 32 m · 5.7 kn average · 9 Jun 2026
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.