| Loss | 0–1 | [2019 U.S. Men's Clay Court Championships – Singles|] | U.S. Men's Clay Court Championships, United States | ATP 250 | Clay |  dts|Feb 2020
Singles: 9 (3 titles, 6 runner-ups)| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | | Win | 1–0 | [2016 Copa Sevilla – Singles|] | Copa Sevilla Open, Spain | Challenger | Clay |  dts|Apr 2018
- Ruud has a record against players who were, at the time the match was played, ranked in the top 10.
''* Statistics correct as of 2026.''
The tournaments won by Ruud are in boldface, and advanced into finals by Ruud are in italics.
| Year | Australian Open | French Open | Wimbledon | US Open | | 2017 | Did not qualify | Did not qualify | Did not play | Did not qualify | | 2018 | Qualifier | Qualifier | Did not qualify | Qualifier | | 2019 | Did not qualify | Unseeded | Unseeded | Unseeded | | 2020 | Unseeded | 28th | tournament cancelled | 30th | | 2021 | 24th | 15th | 12th | 8th | | 2022 | 8th | 8th | 3rd | 5th | | 2023 | 2nd | 4th | 4th | 5th | | 2024 | 11th | 7th | 8th | 8th | | 2025 | 6th | 7th | Did not play | 12th | | 2026 | | | | |
Best Grand Slam results detailsGrand Slam winners are in boldface, and runner-ups are in italics.
National and international participationTeam competitions finals: 5 (2 title, 3 runner-ups)
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