2021 WTA Finals – Doubles

Doubles
Doubles
2021 WTA Finals
Final
Champions	Barbora Krejčíková; Kateřina Siniaková
Runners-up	Hsieh Su-wei; Elise Mertens
Score	6–3, 6–4
Details
Draw	8 (round robin)
Events
Singles	Doubles

Barbora Krejčíková and Kateřina Siniaková defeated Hsieh Su-wei and Elise Mertens in the final, 6–3, 6–4 to win the doubles tennis title at the 2021 WTA Finals.

Tímea Babos and Kristina Mladenovic were the two-time reigning champions, but failed to qualify this year.^[1]

Krejčíková and Siniaková clinched the year-end no. 1 as a team with their win against Sharon Fichman and Giuliana Olmos in their first round-robin match, and Siniaková secured the individual year-end no. 1 ranking by winning the title. Hsieh was also in contention for the top ranking.^[2]

Seeds

Barbora Krejčíková / Kateřina Siniaková (champions)
Shuko Aoyama / Ena Shibahara (semifinals)
Hsieh Su-wei / Elise Mertens (final)
Nicole Melichar-Martinez / Demi Schuurs (semifinals)
Samantha Stosur / Zhang Shuai (round robin)
Alexa Guarachi / Desirae Krawczyk (round robin)
Darija Jurak / Andreja Klepač (round robin)
Sharon Fichman / Giuliana Olmos (round robin)

Alternates

Nadiia Kichenok / Raluca Olaru (Did not play)
Marie Bouzková / Lucie Hradecká (Did not play)

Draw

Key

Finals

Semifinals					Final

1	Barbora Krejčíková Kateřina Siniaková	3	6	[10]

4	Nicole Melichar-Martinez Demi Schuurs	6	3	[6]
					1	Barbora Krejčíková Kateřina Siniaková	6	6

					3	Hsieh Su-wei Elise Mertens	3	4
2	Shuko Aoyama Ena Shibahara	2	2

3	Hsieh Su-wei Elise Mertens	6	6

Group El Tajín

		Krejčíková Siniaková	Hsieh Mertens	Guarachi Krawczyk	Fichman Olmos	RR W–L	Set W–L	Game W–L	Standings
1	Barbora Krejčíková Kateřina Siniaková		6–3, 6–1	5–7, 7–6^(7–3), [10–7]	6–4, 6–1	3–0	6–1 (86%)	37–22 (63%)	1
3	Hsieh Su-wei Elise Mertens	3–6, 1–6		7–6^(7–3), 6–2	6–4, 7–6^(7–3)	2–1	4–2 (67%)	30–30 (50%)	2
6	Alexa Guarachi Desirae Krawczyk	7–5, 6–7^(3–7), [7–10]	6–7^(3–7), 2–6		0–6, 6–3, [11–9]	1–2	3–5 (38%)	28–35 (44%)	3
8	Sharon Fichman Giuliana Olmos	4–6, 1–6	4–6, 6–7^(3–7)	6–0, 3–6, [9–11]		0–3	1–6 (14%)	24–32 (43%)	4

Group Tenochtitlán

		Aoyama Shibahara	Melichar-Martinez Schuurs	Stosur Zhang	Jurak Klepač	RR W–L	Set W–L	Game W–L	Standings
2	Shuko Aoyama Ena Shibahara		6–4, 7–6^(7–5)	6–4, 3–6, [7–10]	6–0, 6–4	2–1	5–2 (71%)	34–25 (58%)	1
4	Nicole Melichar-Martinez Demi Schuurs	4–6, 6–7^(5–7)		6–2, 6–2	6–4, 3–6, [10–2]	2–1	4–3 (57%)	32–27 (54%)	2
5	Samantha Stosur Zhang Shuai	4–6, 6–3, [10–7]	2–6, 2–6		7–6^(12–10), 6–7^(4–7), [5–10]	1–2	3–5 (38%)	28–35 (44%)	4
7	Darija Jurak Andreja Klepač	0–6, 4–6	4–6, 6–3, [2–10]	6–7^(10–12), 7–6^(7–4), [10–5]		1–2	3–5 (38%)	28–35 (44%)	3

Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-player ties, head-to-head records; 4. in three-player ties, (a) percentage of sets won (head-to-head records if two players remain tied), then (b) percentage of games won (head-to-head records if two players remain tied), then (c) WTA rankings.