2021 WTA Finals – Doubles
2021 tennis event results
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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.
Barbora Krejčíková Kateřina Siniaková
Hsieh Su-wei
Elise Mertens| Doubles | |
|---|---|
| 2021 WTA Finals | |
| Champions | Barbora Krejčíková Kateřina Siniaková |
| Runners-up | Hsieh Su-wei Elise Mertens |
| Score | 6–3, 6–4 |
| Draw | 8 (round robin) |
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. Krejčíková was the only player in this edition to qualify for both the singles and doubles tournaments.[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
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
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.