It’s always a tough one to lose in the first round of a tournament with a Sunday start.

You’re out, before it even begins, really.

And that’s what happened to Garbiñe Muguruza, who was up 6-0, 5-3 on Canadian Bianca Andreescu – only to fall in three sets.

Tough for her. Great start for Andreescu, who begins 2023 having had to put together an entirely new team around her.

Meanwhile, Genie Bouchard gave American Katie Volynets a walkover in her final-round qualifying match in Auckland.

ATP Tour – Sunday, Jan. 1, 2023 final results

United Cup – Sunday, Jan. 1, 2023 final results

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Adelaide International I
Location: Adelaide, Australia
Surface: Outdoor Hard
Dates: Jan 1 – 8, 2023 (Joint event with the ATP Tour)
Prize money: $826,837
Draw size: S30 / D24

Sunday, Jan. 1, 2023
Final results

Singles, first round

[PR] Bianca Andreescu (CAN) def. Garbiñe Mugurza (ESP) 06 76 (3) 61

Kaia Kanepi (EST) def Aliaksandra Sasnovich (BLR) 46 61 64

Doubles, first round

Timea Babos (HUN) / Kristina Mladenovic (FRA) def. Angelina Gabueva (RUS) / Alison Riske Amritraj (USA) 61 60
Veronika Kudermertova / Liudmila Samsonova (RUS) def. Marta Kostyuk (UKR) / Mayar Sherif (EGY) 62 63
Nadiia Kichenok (UKR) / Kimberley Zimmerman (BEL) def. Han Xinyun (CHN) / Vivian Heisen (GER) 75 63
Cristina Bucsa (ESP) / Makoto Ninomiya (JPN) def Alicia Barnett / Olivia Nicholls (GBR) 61 75
Ekaterina Alexandrova (RUS) / Zhang Shuai (CHN) def Natela Dzalamidze (GEO) / Alexandra Panova (RUS) 62 64

Qualifying, final round

(1st round opponents in brackets)

Viktorija Golubic (SUI) def. [WC] Storm Sanders Hunter (AUS) 46 63 63 (Qualifying, final round) (Sorana Cirstea)
[1] Anhelina Kalinina (UKR) def. Anna Bondar (HUN) 61 61 (Qualifying, final round) (Victoria Azarenka)
[11] Marta Kostyuk (UKR) def [6] Mayar Sherif (EGY) 63 61 (Qualifying, final round) ([WC] Jaimee Fourlis)
[9] Claire Liu (USA) def. [5] Katerina Siniakova (CZE) 06 63 61 (Qualifying, final round) ([WC] Priscilla Hon)
Linda Noskova (CZE) def. [3] Anastasia Potapova (RUS) 63 62 (Qualifying, final round) ([3] Daria Kasatkina)
[4] Shelby Rogers (USA) def. Kimberly Birrell (AUS) 61 62 (Qualifying, final round) (Irina-Camelia Begu)

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ASB Classic
Location: Auckland, New Zealand
Surface: Outdoor Hard
Dates: Jan. 2 – 8, 2023
Prize money: $259,303

Sunday, Jan. 1, 2023
Final results
Qualifying, final round

(1st-round opponents in brackets)

[1] Ysaline Bonaventure (BEL) def. [7] Arantxa Rus (NED) 63 26 64 (Caty McNally)
Nao Hibino (JPN) def Jaqueline Cristian (ROU) 63 46 62 ([7] Danka Kovinic)
Viktoria Kuzmova (SVK) def. [2] Varvara Gracheva (RUS) 63 46 63 ([4] Bernarda Pera)
[12] Rebeka Masarova (ESP) def. [4] Sara Errani (ITA) 62 63 ([2] Sloane Stephens)
[8] Elena-Gabriela Ruse (ROU) def. [3] Moyuka Uchiyama (JPN) 64 61 ([WC] Erin Routliffe)