Not absolutely sure as there are 4 holes where l can't remember whether or not I've had a birdie. So I'll say 55 - which is 14 under, all birdies, no eagles. Best gross, 83.
I've birdied 14 and eagled 4 in just under 3 years. Considering I've only broken 80 twice I think that tells me everything I need to know about my (lack of) consistency...
If you go onto HowdidIDo and click 'Statistics' then onto 'Hole by Hole' it tells you at the top. This is only competition rounds mind.
Mine says 51 - which is slightly incorrect as we lost our old 2nd and 10th holes and it moved a few hole numbers around (e.g. 9th was a par 3 but is now the 7th and the 11th is the new 9th. - This shows I've scored a 2 on it but in honesty I never had a 2 on what is now the 9th).
I also birdied the 12th recently but not in a comp so that still shows my best score being a Par (3)