Compare boats

Fleet from 2025 Brisbane to Gladstone Yacht Race, compared on their ORC and IRC certificate data. Pick up to 2 boats.

Comparing two boats. Sign in free to compare up to 6 and use the full toolkit.

and 272 more - search to narrow

In this fleet, no certificate linked yet - open a boat to add its ORC certificate link:

BOLT Out of the Blue Circe Coopers Double Black Flying Colours 2 Hutchies Yeah Baby Indigo II Maritimo 52 Mayfair Mystic Ocean Crusaders J-Bird Rushour Ryujin Samurai South Passage Top Gun XL2

To add any boat, paste its public ORC certificate link on that boat's profile page. ORC certificates and IRC published boat data also link automatically overnight.

Rated pace

The selection ordered by rating, fastest first. The gap is what the slower boat gets back in corrected time - per hour of racing under IRC, per mile under ORC.

IRCRestless1.034+79 s/hrBalancing Act1.012

Gaps are cumulative from the fastest-rated boat in the selection.

IRC vs ORCwhere the two rules disagree

Every boat holding both ratings, two independent measurement rules assessing the same hull. The line is this fleet's trend; boats off it are the ones the rules disagree about. Hover for the size of the disagreement; click a dot to add the boat.

whole fleet

Shade by season results

67 boats holding both an IRC and an ORC rating · dashed outline = expired IRC cert · hover lights up sisterships

Certificate measurements

Pick a family of measurements. Each bar runs left or right of the centre line to show how far that boat sits from the middle of the selection, on a fixed scale of ±10%. A near-empty row means the boats really are that alike.

Hull form	Balancing Act	Restless
Length overall (m)	9.95	10.64
Max beam (m)	3.41	-
Draft (m)	1.99	2.12
Displacement (kg)	4,641	3,199
Wetted surface (m²)	22.9	-
Stability index	126.1	-

Hull and stability numbers in sailing trim.

When they met

Races where at least two of the selected boats finished, scored under each measurement rating system the race carried - places are in the full division, margins in corrected time, exactly as the club published them.

Checking the results…

All figures come from each boat's public ORC certificate or IRC published boat data (IRC TCCs from club records); speeds are the ORC certificate VPP's predictions, not observed results. Measurements move together with boat size, so no single number explains a rating. The fairest comparisons are between boats of similar size or within one design classes.