Rounding out the top five were Waikanae Surf Life Saving Club, who finished the second day with 14 points overall.
Oceans 18 event manager Scott Bicknell says "there was a fantastic atmosphere here all day".
"Everyone from the athletes, to supporters and officials are enjoying the event despite the challenging weather conditions. There is no doubt it has been a little bit tough for the athletes today but they've done exceptionally well and I think that's reflected in the close results.
"Plus the comraderie between the athletes has been really good to see. There is a lot of cheering going on during races and we all love seeing that. It creates a really amazing vibe and it's great to see them all supporting each other."
Oceans 18 continues todayfrom 8am at Orewa Beach with spectators welcome to attend for free.
Events for the athletes include the Diamond races, consisting of swim, board and beach sprint legs, along with a series of separate beach sprinting events.
Oceans 18 — Top 5 after Day 2
Mt Maunganui LS, 34, Lyall Bay SLSC, 34, Whakatane SLSC, 25, Omanu SLSC, 19, Waikanae SLSC, 14