It would appear that we missed an update during the previous revision of the rules.
The following rule was added to the Endurance rules but somehow we missed adding it to the Hydro & Offshore rules. This has now been corrected and therefore the following rule will apply to all classes.
If a competitor drops out of a final the reserve competitor can only take their place if the finalist’s hull is damaged beyond repair. Mechanical failures are not included.
The iMBRA Committee