2018

Chwalińska's profile received a boost in May when she played in the ITF tournament in Trnava, Slovakia. In her final round qualifying match against Irina Falconi, she produced an amazing "tweener" shot which clipped the top of the net and dropped into Falconi's side of the court for a winner which became an internet sensation.^[4] Chwalińska went on to beat Falconi, and then the pair of them became part of a very unusual club when they met again in the first round proper. Chwalińska was originally drawn to meet Carol Zhao, who withdrew through injury and was replaced by Falconi as a lucky loser. In the rematch Chwalińska won again, but was beaten in the second round by Verónica Cepede Royg, a player ranked more than 500 places higher, and who went on to be the tournament runner-up.

A few weeks later she won her second doubles title, in Toruń, Poland, alongside Katarzyna Kawa, who had beaten her in a singles quarterfinal the day before, and her doubles ranking jumped to a career-high 510. She followed that by finishing runner-up in the singles at the European Junior Championship to Clara Tauson, and was a losing semifinalist in the doubles with Weronika Falkowska. In Warsaw, she reached the semifinals of the singles, going down in a marathon three hours and 15 minutes three-set match to Victoria Bosio, and won the doubles with Daria Kuczer, racing away to take the match tie-break 10–1, after losing the first set.

2019

Poland hosted the Europe/Africa I Fed Cup pool at Zielona Góra in February. Chwalińska represented her country at senior level for the first time in the tie against Denmark, where she partnered Alicja Rosolska in the doubles. They beat Maria Jespersen and Hannah Viller Møller, 6–0, 6–3.

She reached the doubles final of the ITF event in Trnava the following week, and the singles semifinals in Altenkirchen a week after that. Moving on to England, she and Ulrikke Eikeri won the doubles title at the ITF tournament in Sunderland, coming from match points down to win the match tie-break 11–9, Chwalińska finishing with an amazing backhand down the line from well outside the court.

Her first singles title followed in July, appropriately enough on home soil in Bytom, where she beat Nina Potočnik in the final. A week later, she made it two singles titles in a row on the Polish swing of the circuit, the runner-up this time being Dejana Radanović, and a week after that she successfully defended her doubles title in Warsaw, the differences from the previous year being that the tournament had now been upgraded to a $60k event and that Eikeri was her partner this time. Her partner from the previous year, Daria Kuczer, was half of the team they defeated in the first round. The following day saw a dream result as she defeated Anastasiya Komardina in the singles final to complete a treble of titles in consecutive weeks.

Her last two tournaments for the year were in Székesfehérvár, but she lost to Irina Bara in the first round both times. She also lost in the first round of doubles in both weeks.

2020

Chwalińska started the new season by travelling to Australia for the first time since 2017, making her senior Grand Slam debut in the Australian Open, where she lost in the first round of qualifying to Isabella Shinikova. At the Fed Cup Group I tournament in Esch-sur-Alzette, Luxembourg, Chwalińska, again partnered Alicja Rosolska in the doubles, this time against Slovenia. Rosolska picked up a slight injury during the match, hampering her enough to ruin their chance of victory. Chwalińska paired with Magdalena Fręch in the following day's win over Turkey. Her only subsequent tournament before the COVID-19 pandemic halted international tennis was at Altenkirchen, where she had to withdraw through injury during her second round singles match. That meant, she and Linda Fruhvirtová had to default their doubles semifinal.

Chwalińska returned to tournament play in August, at the event in Prague which had been upgraded to replace the cancelled US Open qualifying competition. She had easy wins in the first two rounds, but injured her wrist in her third-round loss to Clara Tauson. She resumed by winning a Polish inter-club tournament at the beginning of December, and followed that with an ITF tournament in Selva Gardena. Beaten in the first round of singles by Lea Bošković, she and Linda Fruhvirtová made it to the doubles final, where they lost to Italian 17 year olds Matilde Paoletti and Lisa Pigato, the latter being the French Open junior doubles champion.

2021

Chwalińska again found Clara Tauson to be a stumbling block when she played her first tournament of the year in Fujairah, losing to the Dane in the quarterfinals. She lost to Yuan Yue in the first round of qualifying for the Australian Open in Dubai before reaching the semifinals of a $25k tournament in Grenoble, but aggravated her wrist injury in Altenkirchen the following week and had to withdraw after winning her first match.

She then went to Argentina for a series of $25k tournaments, but contracted COVID-19^[5] and had to return home after quarantining without playing a match.

2022: Grand Slam debut and first win

She qualified for her first major at the 2022 Wimbledon Championships defeating No. 2 seed CoCo Vandeweghe in the final round of qualifying.^[6][7] She won her first major match defeating Kateřina Siniaková in the first round.^[8]

Singles

Current through the 2023 French Open qualifying.

Singles: 7 (5 titles, 2 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Feb 2017	ITF Birkenhead, UK	15,000	Hard (i)	Maia Lumsden	4–6, 1–6
Win	1–1	Jul 2019	ITF Bytom, Poland	25,000	Clay	Nina Potočnik	6–3, 6–4
Win	2–1	Aug 2019	ITF Grodzisk Mazowiecki, Poland	25,000	Clay	Dejana Radanović	7–6(5), 6–4
Win	3–1	Aug 2019	ITF Warsaw, Poland	60,000	Clay	Anastasiya Komardina	6–3, 6–0
Win	4–1	Jan 2022	ITF Monastir, Tunisia	25,000	Hard	Carole Monnet	6–4, 6–4
Loss	4–2	Feb 2022	ITF Porto, Portugal	25,000	Hard (i)	Julia Grabher	3–6, 7–6(2), 5–7
Win	5–2	May 2022	ITF Prague, Czech Republic	60,000	Clay	Ekaterine Gorgodze	7–5, 6–3

Doubles: 18 (8 titles, 10 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Sep 2016	ITF Brno, Czech Republic	10,000	Clay	Paulina Czarnik	Aneta Kladivová Aneta Laboutková	6–7(5), 6–3, [10–12]
Win	1–1	Feb 2017	ITF Birkenhead, UK	15,000	Hard (i)	Miyabi Inoue	Emina Bektas Ronit Yurovsky	6–4, 6–4
Win	2–1	Jun 2018	ITF Torun, Poland	25,000	Clay	Katarzyna Kawa	Albina Khabibulina Hélène Scholsen	6–1, 6–4
Win	3–1	Aug 2018	ITF Warsaw, Poland	25,000	Clay (i)[lower-alpha 1]	Daria Kuczer	Martyna Kubka Stefania Rogozińska Dzik	3–6, 7–6(5), [10–1]
Loss	3–2	Nov 2018	ITF Toronto, Canada	60,000	Hard (i)	Elitsa Kostova	Sharon Fichman Maria Sanchez	0–6, 4–6
Loss	3–3	Feb 2019	ITF Trnava, Slovakia	25,000	Hard (i)	Miriam Kolodziejová	Laura-Ioana Andrei Anastasia Zarycká	4–6, 3–6
Win	4–3	Apr 2019	ITF Sunderland, UK	25,000	Hard (i)	Ulrikke Eikeri	Emina Bektas Tara Moore	6–4, 3–6, [11–9]
Win	5–3	Aug 2019	ITF Warsaw, Poland (2)	60,000	Clay	Ulrikke Eikeri	Weronika Falkowska Martyna Kubka	6–4, 6–1
Loss	5–4	Dec 2020	ITF Selva Gardena, Italy	25,000	Hard (i)	Linda Fruhvirtová	Matilde Paoletti Lisa Pigato	5–7, 1–6
Loss	5–5	Oct 2021	ITF Istanbul, Turkey	25,000	Hard (i)	Miriam Kolodziejová	Jasmijn Gimbrère Bibiane Schoofs	2–6, 4–6
Loss	5–6	Nov 2021	ITF Haabneeme, Estonia	25,000	Hard (i)	Adrienn Nagy	Jessica Failla Chihiro Muramatsu	3–6, 4–6
Loss	5–7	Nov 2021	ITF Milovice, Czech Republic	25,000	Hard (i)	Linda Nosková	Sakura Hosogi Misaki Matsuda	6–3, 2–6, [8–10]
Win	6–7	Dec 2021	ITF Jablonec nad Nisou, Czech Republic	25,000	Carpet (i)	Katherine Sebov	Lucie Havlíčková Linda Klimovičová	7–5, 6–4
Win	7–7	Apr 2022	ITF Istanbul, Turkey	60,000	Clay	Jesika Malečková	Anastasia Tikhonova Berfu Cengiz	2–6, 6–4, [10–7]
Win	8–7	May 2023	ITF Prague, Czech Republic	60,000	Clay	Jesika Malečková	Aneta Kučmová Kaylah McPhee	6–0, 7–6(7–5)
Loss	8–8	Jun 2023	ITF Ilkley, UK	100,000	Hard	Jesika Malečková	Natalija Stevanović Nao Hibino	6–7(10–12), 6–7(5–7)
Loss	8–9	Dec 2023	ITF Sharm El Sheikh, Egypt	25,000	Hard	Gina Feistel	Victoria Mikhaylova Mariia Tkacheva	4–6, 6–3, [11–13]
Loss	8–10	Jan 2024	ITF Nonthaburi, Thailand	50,000	Hard	Yuki Naito	Anna Sisková Ksenia Zaytseva	5–7, 6–7(3–7)

Fed Cup/Billie Jean King Cup

Doubles (2–1)

Edition	Stage	Date	Location	Surface	Partner	Against	Opponents	W/L	Score
2019	ZG1 R/R	Feb 2019	Zielona Góra (POL)	Hard (i)	Alicja Rosolska	Denmark	Maria Jespersen Hannah Viller Møller	W	6–0, 6–3
2020–21	ZG1 R/R	Feb 2020	Esch-sur-Alzette (LUX)			Slovenia	Kaja Juvan Pia Lovrič	L	5–7, 0–6
					Magdalena Fręch	Turkey	Ayla Aksu İpek Öz	W	6–3, 6–4

Grand Slam tournaments

Girls' doubles: 1 (runner–up)

Result	Year	Tournament	Surface	Partner	Opponents	Score
Loss	2017	Australian Open	Hard	Iga Świątek	Bianca Andreescu Carson Branstine	1–6, 6–7(4)

ITF Junior Circuit

Singles: 2 (2 titles)

Result	W–L	Date	Location	Tier	Surface	Opponent	Score
Win	1–0	Feb 2016	ITF Szczecin, Poland	G4	Hard (i)	Weronika Falkowska	6–2, 6–3
Win	2–0	Feb 2016	ITF Hamburg, Germany	G4	Hard (i)	Shaline-Doreen Pipa	6–0, 7–6(0)

Doubles: 7 (1 title, 6 runner-ups)

Result	W–L	Date	Location	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Feb 2016	ITF Szczecin, Poland	G4	Hard (i)	Wiktoria Rutkowska	Klara Siłka Weronika Falkowska	6–1, 3–6, [2–10]
Loss	0–2	Feb 2016	ITF Šiauliai, Lithuania	G2	Hard (i)	Anna Laguza	Deniza Marcinkēviča Katyarina Paulenka	3–6, 2–6
Loss	0–3	May 2016	ITF Mödling, Austria	G2	Clay	Daria Kuczer	Olga Danilović Johana Marková	6–4, 6–7(2), [5–10]
Loss	0–4	May 2016	ITF Marcinelle, Belgium	G1	Clay	Eléonora Molinaro	Cho I-hsuan Yuki Naito	2–6, 7–5, [5–10]
Loss	0–5	Aug 2016	ITF Budaörs, Hungary	G2	Clay	Mihaela Lorena Marculescu	Eva Alexandrova Maryna Chernyshova	3–6, 5–7
Loss	0–6	Sep 2016	ITF Prague, Czech Republic	G2	Clay	Ania Hertel	Denisa Hunkova Kristyna Lavicková	6–2, 3–6, [6–10]
Win	1–6	Jan 2017	ITF Traralgon, Australia	G1	Hard	Iga Świątek	Gabriella Da Silva-Fick Kaitlin Staines	3–6, 6–4, [10–7]

Other junior finals

Fed Cup

Result	Date	Team competition	Surface	Partner/Team	Opponents	Score
Win	Oct 2016	Junior Fed Cup, Budapest	Clay	Iga Świątek Stefania Rogozińska-Dzik	Amanda Anisimova Claire Liu Caty McNally	2–1

Record against top 10 players

Chwalinska's record against players who have been ranked in the top 10, Active players are in boldface.^[9]

Player	Record	Win%	Hard	Clay	Grass	Last match
No. 1 ranked players
Iga Świątek	0–1	0%	0–1	–	–	Lost (2–6, 3–6) at 2016 ITF Stockholm (W10)
No. 2 ranked players
Barbora Krejcikova	0–1	0%	–	0–1	–	Lost (7–6(7–2), 5–7, 3–6) at 2019 ITF Staré Splavy
No. 5 ranked players
Sara Errani	1–0	100%	–	1–0	–	Won (6–3, 6–3) at 2019 ITF Staré Splavy
Daniela Hantuchova	0–1	0%	0–1	–	–	Lost (0–6, 2–6) at 2016 Katowice (Q)
No. 9 ranked players
CoCo Vandeweghe	1–0	100%	–	–	1–0	Won (3–6, 6–3, 6–4) at 2022 Wimbledon (Q)
Total	2–3	40%	0–2 (0%)	1–1 (50%)	1-0 (100%)	current through the 2022 Warsaw Open