On 6 December 2016, she crossed the Beagle Channel from Glacier Italia on Tierra del Fuego to Gordon Island in Chile, a 2 km crossing in 6.4°C (45°F) water in 44 minutes 51 seconds that established a new swim route offered by Patagonia Swim.
2014 World Open Water Swimming Woman of the Year Nomination
Macy was nominated for the 2014 World Open Water Swimming Woman of the Year. Her nomination reads: Her love of the sport knows no limits, she serves as support crew as readily as she dives in the water for her own marathon swims. Michelle Macy was the first American and third person overall to achieve the Oceans Seven. The full-time Nike employee takes enough time out of her busy work schedule to become one of the most prolific and accomplished open water swimmers in contemporary times. Without sponsors and without hype, the friendly, thoughtful, seriously-minded swimmer moves about the globe to cross channels and help others in their own quests. For her world record time across the North Channel, for her achievement of the Oceans Seven, for her joyful willingness to crew for other swimmers around the world, Michelle Macy is a worthy nominee for the 2014 World Open Water Swimming Woman of the Year.
Taupo x 3 Relay
Macy was a member of the Taupo x 3relay, a three-waycrossing of Lake Taupo by a 6-person male team and a 6-person female team of experienced open water swimmers in January 2009. The Taupo x 3relay teams set a world lake swimming record by completing a 126 km (68.2 miles) triple-crossing of Lake Taupo, the largest lake in New Zealand under organisers Chris Palfrey, Penny Palfrey, and Julie Bradshaw. The swim started at 5:44 am on 5 January 2009.
The men’s relay team finished in 34 hours 41 minutes 15 seconds and included Steve Junk (Australia), Mark Cockroft (New Zealand), Dougal Hunt (Australia), Chris Palfrey (Australia), and Stephen Spence (Australia) with New Zealand legend Philip Rush as the escort pilot. The women’s relay team finished in 34 hours 44 minutes 45 seconds and included Julie Bradshaw (England), Michelle Macy (USA), Barbara Pellick (Australia), Penny Palfrey (Australia), Lucy Roper (England), and Heather Osborn (New Zealand).
The plan was to start at first light from near Tokaanu, at the southern most point of the lake, heading roughly north east past Motutaiko Island, cutting close to Rangitiri point, before finishing on the beach in front of the Waikato River. The distance by GPS for one lap was 40.2 km. The second lap retraced the course back to the starting point and the final lap was a repeat of the first.
The men finished the first leg of 40.2 km in a time of 10 hours 22 minutes; the women finished in 10 hours 28 minutes. The men finished the second leg of 40.2 km in 12 hours 15 minutes; the women finished in 12 hours 19 minutes. The men finished the third leg of 40.2 km in 10 hours 54 minutes; the women finished in 10 hours 54 minutes. Both teams broke the world relay record set in December 2008 by 2 teams of 50 swimmers, each doing 2 km, who covered 100 km in 46 hours 6 minutes.