RedactedNarrative: vessel 1 was traveling south on a port tack, vessel 2 was on a starboard tack, vessel 2 altered course to port passing each other starboard to starboard, upon contact with vessel 1 sustained a 20" tear in the broadseams, vessel 2 sustained damage to starboard side stanchion post (5-6) and some damage to bow pulpit. No vessel exchange signals.