This page will cover all the important events in the sport of tennis in 2020. Primarily, it will provide the results of notable tournaments throughout the year on both the ATP and WTA Tours, the Davis Cup, and the Fed Cup.
| Category | Championship | Champions | Finalists | Score in the final |
|---|---|---|---|---|
| Men's singles |  Novak Djokovic | 6–4, 4–6, 2–6, 6–3, 6–4 | ||
| Cancelled | ||||
 Dominic Thiem | 2–6, 4–6, 6–4, 6–3, 7–6(8–6) | |||
 Rafael Nadal | 6–0, 6–2, 7–5 | |||
| Category | Championship | Champions | Finalists | Score in the final |
|---|---|---|---|---|
| Women's singles |  Sofia Kenin | 4–6, 6–2, 6–2 | ||
| Cancelled | ||||
 Naomi Osaka |  Victoria Azarenka | 1–6, 6–3, 6–3 | ||
 Iga Świątek | 6–4, 6–1 | |||
| Category | Championship | Champions | Finalists | Score in the final |
|---|---|---|---|---|
| Men's Doubles | Rajeev Ram Joe Salisbury | 6–4, 6–2 | ||
| Cancelled | ||||
 Mate Pavić Bruno Soares | Nikola Mektić Wesley Koolhof | 7–5, 6–3 | ||
 Kevin Krawietz Andreas Mies | 6–3, 7–5 | |||
| Category | Championship | Champions | Finalists | Score in the final |
|---|---|---|---|---|
| Women's Doubles |  Tímea Babos Kristina Mladenovic | 6–2, 6–1 | ||
| Cancelled | ||||
Laura Siegemund Vera Zvonareva |  Xu Yifan Nicole Melichar | 6–4, 6–4 | ||
| Tímea Babos Kristina Mladenovic | 6–4, 7–5 | |||
| Category | Championship | Champions | Finalists | Score in the final |
|---|---|---|---|---|
| Mixed Doubles |  Barbora KrejčíkováNikola Mektić | 5–7, 6–4, [10–1] | ||
| Cancelled | ||||
| Not played | ||||
| French Open | ||||
Final tournament postponed to November 2021.
Final tournament postponed to November 2021.