[3] Once she was a member of Avon, Prendergast first competed at the New Zealand rowing championships in 2011, when they were held on Lake Ruataniwha.

[8] At the February 2012 New Zealand rowing championships held on Lake Karapiro, Prendergast competed in four boat classes.

At the 2013 World Rowing Championships on the Tangeum Lake in Chungju, South Korea, they missed the A-final but came first in the B-final (seventh overall).

[7] She travelled with a New Zealand squad to the 2014 World Rowing Cup III at the Rotsee, where she won a silver medal in the coxless pair with Gowler.

They had started as NZII, with NZI made consisting of Louise Trappitt and Rebecca Scown, but they beat the higher-rated team by five seconds and displaced them to the bronze medal position.

[15] Prendergast and Gowler then went to the 2014 World Rowing U23 Championships in Varese, Italy, where they won gold with a massive 13-second lead over an American pair.

[d][8][15][17] At the February 2015 New Zealand rowing championships, Prendergast competed in two premier boat classes and took out two national titles.

The same approach was used at the 2015 World Rowing Championships in Aiguebelette, France, where they won silver in both boat classes.

[e][6][7] At the February 2016 New Zealand rowing championships, Prendergast competed in three premier boat classes and won one national title.

[19] When the Olympic rowing team got announced in March 2016, it came as a big disappointment to Gowler and Prendergast that they were not picked for the coxless pair (this was given to Rebecca Scown and Genevieve Behrent)[7] but were chosen for the women's eight instead.

[21] The eight squad went to the 2016 World Rowing Cups II and III in Switzerland and Poland in preparation for the Olympics, and they came third and first, respectively.

[31] At the World Rowing Cup III in Rotterdam, Netherlands, they competed in both the eight (gold) and in the coxless pair (silver, beaten by the Australian team of Jessica Morrison and Annabelle McIntyre).

[8] In early February 2021, Rowing New Zealand announced the elite women's team for the Olympic year, with Prendergast and Gowler nominated for the coxless pair as well as being part of the eight.

[34] Two weeks later at the 2021 New Zealand rowing nationals at Lake Ruataniwha, Prendergast competed in three boat classes.

[35] When New Zealand's Olympic team was announced in June 2021, Prendergast and Gowler were confirmed to start with both the coxless pair and the eight.

[36] In November 2020, the World Rowing Federation predicted that New Zealand and Australia are currently so dominant that their teams would compete in the eight for gold and silver, with the remaining nations fighting over bronze.

[37] Former Olympian Sarah Cowley Ross, who will commentate from Tokyo for TVNZ, expects the eight and the coxless pair to both get medals.

[38] Sports bookmaker Pinnacle offers very low odds for the women's eight and the coxless pair to win gold.

[43] In 2022, Prendergast rowed in the 7-seat of the Cambridge women's eight in the 2022 Boat Race, a crew which went on to win in a record time of 18 minutes and 22 seconds.

[53] At the 2020 Sport Canterbury Awards, Prendergast won the Supreme Sportsperson of the Year title, breaking shot putter Tom Walsh's dominance.

[54] In the 2022 Queen's Birthday and Platinum Jubilee Honours, Prendergast was appointed a Member of the New Zealand Order of Merit, for services to rowing.