52356 was close hauled on starboard tack and on a converging course with 55149 close hauled on port tack.
52356 tacked to avoid contact with 55149 and capsized.
55149 tacked at the last minute and also capsized.
55149 took a two turns penalty immediately after the incident.
There was no contact and no damage. Both boats finished.
55149 did not keep clear as required by rule 10 but exonerated herself.