| Date: | 30 December 2017 – 6 January 2018 |
| Edition: | XXX (30th) |
| Surface: | Hard (indoor) |
| Location: | Perth, Western Australia |
| Venue: | Perth Arena |
The Hopman Cup XXX (also known as the 2018 Mastercard Hopman Cup for sponsorship reasons)[1] was the 30th edition of the Hopman Cup tournament between nations in men's and women's tennis. It took place at the Perth Arena in Perth, Western Australia.
France were the defending champions; however they did not return to defend their title. This marked the first edition without France competing since 2010.[2]
Switzerland defeated Germany in the final to win its third title.[3] [4]
The draw took place on 5 October 2017 and it placed the 8 teams into two groups, according to the following ranking-based seedings:
| Seed | Team | Female player | WTA1 | Male player | ATP1 | Total | Elimination | |
|---|---|---|---|---|---|---|---|---|
| 1 | Angelique Kerber | 12 | Alexander Zverev | 3 | 15 | Runners-up | ||
| 2 | CoCo Vandeweghe | 10 | Jack Sock | 8 | 18 | Round robin | ||
| 3 | Elise Mertens | 38 | David Goffin | 7 | 49 | Round robin | ||
| 4 | Anastasia Pavlyuchenkova | 21 | Karen Khachanov | 42 | 63 | Round robin | ||
| 5 | Naomi Osaka | 62 | Yūichi Sugita | 40 | 102 | Round robin | ||
| 6 | Eugenie Bouchard | 79 | Vasek Pospisil | 84 | 163 | Round robin | ||
| 7 | Belinda Bencic | 196 | Roger Federer | 2 | 198 | Champions | ||
| 8 | Daria Gavrilova | 22 | Thanasi Kokkinakis | 212 | 234 | Round robin | ||
| 1 – [5] | ||||||||
| Pre-tournament replacement | ||||
|---|---|---|---|---|
| Team | Replacement | Original player | Reason | |
| Anastasia Pavlyuchenkova | Svetlana Kuznetsova | Left wrist injury[6] | ||
| In-tournament partial replacement | ||||
 Maddison Inglis | Naomi Osaka | Illness | ||
| Pat Cash | Jack Sock | Hip injury | ||
| Maddison Inglis | Eugenie Bouchard | Gluteus maximus injury | ||
All times are local (UTC+8).
| width=10 | width=110 | width=75 | Germany | width=75 | Belgium | width=75 | Canada | width=75 | Australia | width=50 | RR W–L | width=50 | Matches W–L | width=50 | Sets W–L | width=50 | Games W–L | Standings | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2–1 | 3–0 | 2–1 | 3–0 | 7–2 | 13–4 | 89–66 | 1 | ||||||||||||
| 3 | 1–2 | 3–0 | 3–0 | 2–1 | 7–2 | 14–6 | 97–68 | 2 | ||||||||||||
| 6 | 0–3 | 0–3 | 1–2 | 0–3 | 1–8 | 3–16 | 56–97 | 4 | ||||||||||||
| 8 | 1–2 | 0–3 | 2–1 | 1–2 | 3–6 | 8–12 | 80–91 | 3 |
Notes. Due to Eugenie Bouchard's withdrawal from the mixed doubles rubber, the scores are counted as 4–0, 4–0 win for Belgium.
All times are local (UTC+8).
| width=10 | width=110 | width=75 | United States | width=75 | Russia | width=75 | Japan | width=75 | Switzerland | width=50 | RR W–L | width=50 | Matches W–L | width=50 | Sets W–L | width=50 | Games W–L | Standings | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2–1 | 2–1 | 0–3 | 2–1 | 4–5 | 9–11 | 85–69 | 2 | ||||||||||||
| 4 | 1–2 | 2–1 | 0–3 | 1–2 | 3–6 | 10–13 | 93–94 | 3 | ||||||||||||
| 5 | 1–2 | 1–2 | 0–3 | 0–3 | 2–7 | 5–15 | 59–98 | 4 | ||||||||||||
| 7 | 3–0 | 3–0 | 3–0 | 3–0 | 9–0 | 18–3 | 109–76 | 1 |
Notes. Maddison Inglis of Australia played instead of Naomi Osaka for the first match. Scores counted as 6–0, 6–0 win for Vandeweghe and 4–0, 4–0 win for the American mixed pair due to Naomi Osaka's withdrawal due to illness.[7] Due to Jack Sock's retirement in the men's singles rubber, the second set is counted as 6–1 win for Sugita. Sock was replaced by Australian Pat Cash for the doubles match.