One keen punter has laid out $15,000 on the All Blacks to take out the Lions series, and another has banked $20,000 after Team New Zealand won the Louis Vuitton Cup.
However, despite a few big bets, betting has been relatively tame over both events so far, TAB spokesman Mark Stafford said.
"There hasn't really been the big bets that we used to see," he said.
He suspected the time zone difference for the America's Cup has put a lot of people off given the races were so early in the morning.
"We haven't really seen big bets on the yachting just because of the time of the day. It's 5am, and people sleep and watch the replays. If it was good New Zealand time zones it would be different."