2021 ATP Finals – Singles

{{columns-list|colwidth=30em|

1. {{flagicon|SRB}} Novak Djokovic (semifinals)
2. {{flagicon|RUS}} Daniil Medvedev (final)
3. {{flagicon|GER}} Alexander Zverev (champion)
4. {{flagicon|GRE}} Stefanos Tsitsipas (round robin, withdrew due to right elbow injury)
5. {{flagicon|RUS}} Andrey Rublev (round robin)
6. {{flagicon|ITA}} Matteo Berrettini (round robin, withdrew due to abdominal injury)
7. {{flagicon|POL}} Hubert Hurkacz (round robin)
8. {{flagicon|NOR}} Casper Ruud (semifinals)

}}

{{columns-list|colwidth=30em|

1. {{flagicon|ITA}} Jannik Sinner (replaced Berrettini, round robin)
2. {{flagicon|GBR}} Cameron Norrie (replaced Tsitsipas, round robin)
3. {{flagicon|RUS}} Aslan Karatsev (Did not play)

}}

{{4TeamBracket-Tennis3

| RD1=Semifinals

| RD2=Final

| team-width=185

| RD1-seed1=1

| RD1-team1={{flagicon|SRB}} Novak Djokovic

| RD1-score1-1=6⁴

| RD1-score1-2=6

| RD1-score1-3=3

| RD1-seed2=3

| RD1-team2={{flagicon|GER}} Alexander Zverev

| RD1-score2-1=7⁷

| RD1-score2-2=4

| RD1-score2-3=6

| RD1-seed3=2

| RD1-team3={{flagicon|RUS}} Daniil Medvedev

| RD1-score3-1=6

| RD1-score3-2=6

| RD1-score3-3=

| RD1-seed4=8

| RD1-team4={{flagicon|NOR}} Casper Ruud

| RD1-score4-1=4

| RD1-score4-2=2

| RD1-score4-3=

| RD2-seed1=3

| RD2-team1={{flagicon|GER}} Alexander Zverev

| RD2-score1-1=6

| RD2-score1-2=6

| RD2-score1-3=

| RD2-seed2=2

| RD2-team2={{flagicon|RUS}} Daniil Medvedev

| RD2-score2-1=4

| RD2-score2-2=4

| RD2-score2-3=

}}

{{4TeamRR-TennisWide

|title-1=

|title-2=RR W–L

|title-3=Set W–L

|title-4=Game W–L

|title-5=Standings

| seed-1=1

| team-1-abbrev={{flagicon|SRB}} Djokovic

| team-1={{nowrap|{{flagicon|SRB}} Novak Djokovic}}

| match-w/l-1=3–0

| set-w/l-1={{twlp|W=6|L=0|dec=0}}

| game-w/l-1={{twlp|W=37|L=16|dec=0}}

| standings-1=1

| seed-3=5

| team-3-abbrev={{flagicon|RUS}} Rublev

| team-3={{nowrap|{{flagicon|RUS}} Andrey Rublev}}

| match-w/l-3=1–2

| set-w/l-3={{twlp|W=3|L=4|dec=0}}

| game-w/l-3={{twlp|W=34|L=36|dec=0}}

| standings-3=3

| seed-2=4
10

| team-2-abbrev={{flagicon|GRE}} Tsitsipas
{{flagicon|GBR}} Norrie

| team-2={{nowrap|{{flagicon|GRE}} Stefanos Tsitsipas}}
{{nowrap|{{flagicon|GBR}} Cameron Norrie}}

| match-w/l-2=0–1
0–2

| set-w/l-2={{twlp|W=0|L=2|dec=0}}
{{twlp|W=1|L=4|dec=0}}

| game-w/l-2={{twlp|W=8|L=12|dec=0}}
{{twlp|W=16|L=25|dec=0}}

| standings-2=X
4

| seed-4=8

| team-4-abbrev={{flagicon|NOR}} Ruud

| team-4={{nowrap|{{flagicon|NOR}} Casper Ruud}}

| match-w/l-4=2–1

| set-w/l-4={{twlp|W=4|L=4|dec=0}}

| game-w/l-4={{twlp|W=37|L=43|dec=0}}

| standings-4=2

|color-row-1= |1v2= 6–2, 6–1
(w/ Norrie) |1v3=6–3, 6–2 |1v4=7–6^(7–4), 6–2

|color-row-2= |2v1= 2–6, 1–6
(w/ Norrie) |2v3=4–6, 4–6
(w/ Tsitsipas) |2v4=6–1, 3–6, 4–6
(w/ Norrie)

|color-row-3= |3v1=3–6, 2–6 |3v2=6–4, 6–4
(w/ Tsitsipas) |3v4= 6–2, 5–7, 6–7^(5–7)

|color-row-4= |4v1=6–7^(4–7), 2–6 |4v2= 1–6, 6–3, 6–4
(w/ Norrie) |4v3=2–6, 7–5, 7–6^(7–5)

}}

{{4TeamRR-TennisWide

|title-1=

|title-2=RR W–L

|title-3=Set W–L

|title-4=Game W–L

|title-5=Standings

| seed-1=2

| team-1-abbrev={{flagicon|RUS}} Medvedev

| team-1={{nowrap|{{flagicon|RUS}} Daniil Medvedev}}

| match-w/l-1=3–0

| set-w/l-1={{twlp|W=6|L=3|dec=0}}

| game-w/l-1={{twlp|W=56|L=43|dec=0}}

| standings-1=1

| seed-2=3

| team-2-abbrev={{flagicon|GER}} Zverev

| team-2={{nowrap|{{flagicon|GER}} Alexander Zverev}}

| match-w/l-2=2–1

| set-w/l-2={{twlp|W=5|L=2|dec=0}}

| game-w/l-2={{twlp|W=36|L=31|dec=0}}

| standings-2=2

| seed-3=6
9

| team-3-abbrev={{flagicon|ITA}} Berrettini
{{flagicon|ITA}} Sinner

| team-3={{nowrap|{{flagicon|ITA}} Matteo Berrettini}}
{{nowrap|{{flagicon|ITA}} Jannik Sinner}}

| match-w/l-3=0–1
1–1

| set-w/l-3={{nowrap|0–2 (0%)}}^†
{{twlp|W=3|L=2|dec=0}}

| game-w/l-3= {{twlp|W=0|L=0|dec=0|none=yes}}
{{twlp|W=25|L=23|dec=0}}

| standings-3=X
3

| seed-4=7

| team-4-abbrev={{flagicon|POL}} Hurkacz

| team-4={{nowrap|{{flagicon|POL}} Hubert Hurkacz}}

| match-w/l-4=0–3

| set-w/l-4={{twlp|W=1|L=6|dec=0}}

| game-w/l-4={{twlp|W=24|L=42|dec=0}}

| standings-4=4

|color-row-1= |1v2=6–3, 6–7^(3–7), 7–6^(8–6) |1v3=6–0, 6–7^(5–7), 7–6^(10–8)
(w/ Sinner) |1v4=6–7^(5–7), 6–3, 6–4

|color-row-2= |2v1=3–6, 7–6^(7–3), 6–7^(6–8) |2v3=7–6^(9–7), 1–0, ret.
(w/ Berrettini) |2v4= 6–2, 6–4

|color-row-3= |3v1= 0–6, 7–6^(7–5), 6–7^(8–10)
(w/ Sinner) |3v2=6–7^(7–9), 0–1, ret.
(w/ Berrettini) |3v4=6–2, 6–2
(w/ Sinner)

|color-row-4= |4v1=7–6^(7–5), 3–6, 4–6 |4v2=2–6, 4–6 |4v3=2–6, 2–6
(w/ Sinner)

}}

† Following ATP rules, Berrettini's retirement against Zverev was counted as a straight-set loss in determining round robin standings.

Standings are determined by: 1. number of wins; 2. number of matches played; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, then percentage of games won; 5. ATP rankings.{{Cite web |title=Rules And Format |url=https://www.nittoatpfinals.com/en/event/rules-and-format |url-status=live |archive-url=https://web.archive.org/web/20200922180339/https://www.nittoatpfinals.com/en/event/rules-and-format |archive-date=2020-09-22 |access-date=2021-11-11 |website=Nitto ATP Finals}}

{{reflist}}

• [http://www.nittoatpfinals.com// Official website]
• [https://www.nittoatpfinals.com/en/scores-centre/group-standings Group standings]
• [http://www.protennislive.com/posting/2021/605/mds.pdf Singles draw]

{{2021 ATP Tour}}

{{DEFAULTSORT:2021 ATP Finals - Singles}}

Singles