2017 In December 2016, Lewis was awarded a wildcard for the
2017 ASB Classic. In the first round, she played former world No. 1,
Venus Williams, losing 6–7, 2–6.
2018 A year later, she received wildcards for the main draw of both singles and doubles at the
2018 ASB Classic. In the singles, she was beaten by Slovakian qualifier
Viktória Kužmová, 6–4, 6–3, and in the doubles, she and
Hsieh Shu-ying were beaten by second seeds,
Nao Hibino and
Darija Jurak, 6–1, 6–0. She then traveled to Egypt for a series of
ITF tournaments at
Sharm El Sheikh. In the first of these, she qualified for the main draw in singles, but lost in the first round. However, in the doubles, she and
Erin Routliffe reached the final where they beat the top seeds
Anastasia Potapova and Ekaterina Yashina. It was Lewis's first
ITF title. A week later, in the next tournament of the series, they repeated their success, again against the top seeds (although a different pair of opponents). Lewis then joined the New Zealand team in Bahrain for their
Fed Cup Asia/Oceania Group II playoffs. New Zealand started against Lebanon, with Lewis dispatching Hoda Habib 6–0, 6–0 in the second rubber of the tie. She and
Emily Fanning in the doubles then beat Habib and Nancy Karaky, 6–1, 6–3. The following day, New Zealand met top seeds Uzbekistan, and Lewis was beaten 7–5, 6–3, by
Nigina Abduraimova in the first singles rubber. Losing all three rubbers, New Zealand therefore finished second in the group, and moved through to the
5th–8th place play-offs against Pakistan the following day, where Lewis beat Mahin Qureshi, 6–1, 6–0. The tie was won 3–0, New Zealand therefore finishing 5th equal with the Philippines. In April 2018 it was reported that Lewis would take a break from tennis touring, and resuming full-time study at Louisiana State University (LSU) in Baton Rouge. She made a return to the circuit in June when an ITF tournament was played at the university, losing in the final round of qualifying for singles, and in the first round of doubles, but has not played any tour matches since then. ==ITF Circuit finals==