# 2018 ATP Finals – Doubles

Mike Bryan and Jack Sock defeated Pierre-Hugues Herbert and Nicolas Mahut in the final, 5–7, 6–1, [13–11] to win the doubles tennis title at the 2018 ATP Finals. They saved a championship point en route to Bryan's fifth Tour Finals title, and his first with a partner other than his brother Bob Bryan. Bryan became the oldest doubles champion in the tournament's history.
Henri Kontinen and John Peers were the two-time reigning champions, but they only qualified for the first alternate spot. Kontinen and Peers replaced Nikola Mektić and Alexander Peya for the last match in the round-robin competition, but did not progress to the knockout stage.

## Seeds

* Oliver Marach / Mate Pavić (round robin)
* Juan Sebastián Cabal / Robert Farah (semifinals)
* Łukasz Kubot / Marcelo Melo (round robin)
* Jamie Murray / Bruno Soares (semifinals)
* Mike Bryan / Jack Sock (champions)
* Raven Klaasen / Michael Venus (round robin)
* Nikola Mektić / Alexander Peya (round robin, withdrew)
* Pierre-Hugues Herbert / Nicolas Mahut (final)

## Alternates

* Henri Kontinen / John Peers (replaced Mektić/Peya, round robin)
* Jean-Julien Rojer / Horia Tecău (Did not play)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 8 | Pierre-Hugues Herbert Nicolas Mahut | 6 | 5 | [10] | | | | | |
| 2 | Juan Sebastián Cabal Robert Farah | 3 | 7 | [5] | | | | | |
| 2 | Juan Sebastián Cabal Robert Farah | 3 | 7 | [5] | 8 | Pierre-Hugues Herbert Nicolas Mahut | 7 | 1 | [11] |
| | | | | | 5 | Mike Bryan Jack Sock | 5 | 6 | [13] |
| 4 | Jamie Murray Bruno Soares | 3 | 6 | [4] | 5 | Mike Bryan Jack Sock | 5 | 6 | [13] |
| 5 | Mike Bryan Jack Sock | 6 | 4 | [10] | | | | | |

### Group Knowles/Nestor

| | | Marach Pavić | Kubot Melo | Bryan Sock | Herbert Mahut | RR W–L | Set W–L | Game W–L | Standings |
| 1 | Oliver Marach Mate Pavić | | 6–7$^{(4–7)}$, 4–6 | 4–6, 6–7$^{(4–7)}$ | 6–4, 7–6$^{(7–3)}$ | 1–2 | 2–4 | 33–36 | 4 |
| 3 | Łukasz Kubot Marcelo Melo | 7–6$^{(7–4)}$, 6–4 | | 3–6, 6–7$^{(5–7)}$ | 2–6, 4–6 | 1–2 | 2–4 | 28–35 | 3 |
| 5 | Mike Bryan Jack Sock | 6–4, 7–6$^{(7–4)}$ | 6–3, 7–6$^{(7–5)}$ | | 2–6, 2–6 | 2–1 | 4–2 | 30–31 | 2 |
| 8 | Pierre-Hugues Herbert Nicolas Mahut | 4–6, 6–7$^{(3–7)}$ | 6–2, 6–4 | 6–2, 6–2 | | 2–1 | 4–2 | 34–23 | 1 |

### Group Llodra/Santoro

| | | Cabal Farah | Murray Soares | Klaasen Venus | Mektić Peya Kontinen Peers | RR W–L | Set W–L | Game W–L | Standings |
| 2 | Juan Sebastián Cabal Robert Farah | | 4–6, 3–6 | 6–3, 7–6$^{(7–5)}$ | 6–3, 6–4 (w/ Mektić/Peya) | 2–1 | 4–2 | 32–28 | 2 |
| 4 | Jamie Murray Bruno Soares | 6–4, 6–3 | | 7–6$^{(7–5)}$, 4–6, [10–5] | 3–6, 7–6$^{(7–3)}$, [10–3] (w/ Kontinen/Peers) | 3–0 | 6–2 | 35–31 | 1 |
| 6 | Raven Klaasen Michael Venus | 3–6, 6–7$^{(5–7)}$ | 6–7$^{(5–7)}$, 6–4, [5–10] | | 7–6$^{(7–5)}$, 7–6$^{(7–5)}$ (w/ Mektić/Peya) | 1–2 | 3–4 | 35–37 | 3 |
| 7 9 | Nikola Mektić Alexander Peya Henri Kontinen John Peers | 3–6, 4–6 (w/ Mektić/Peya) | 6–3, 6–7$^{(3–7)}$, [3–10] (w/ Kontinen/Peers) | 6–7$^{(5–7)}$, 6–7$^{(5–7)}$ (w/ Mektić/Peya) | | 0–2 0–1 | 0–4 1–2 | 19–26 12–11 | X 4 |
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, percentage of sets won, then percentage of games won, then ATP rankings.