Cincinnati Reds vs Seattle Mariners head-to-head
Who has won more, the Cincinnati Reds or the Seattle Mariners?
Seattle Mariners lead the series 45-16 in 62 meetings since Jun 18, 2002. They average 4.3 to 6.0. The last meeting was Jul 22, 2026, 5-3.
- Record
- Cincinnati Reds 16-45-1 Seattle Mariners
- Games
- 62
- Points per game
- 4.3 – 6.0
- Biggest win
- Seattle Mariners by 16
Cincinnati Reds have won the last 2 meetings.
Every meeting on file
| Jul 22, 2026 |  CIN at  SEA | 5-3 | Cincinnati Reds | Regular |
| Jul 21, 2026 | CIN at SEA | 4-2 | Cincinnati Reds | Regular |
| Jul 20, 2026 | CIN at SEA | 0-8 | Seattle Mariners | Regular |
| Mar 15, 2026 | CIN at SEA | 3-6 | Seattle Mariners | Preseason |
| Feb 22, 2026 | SEA at CIN | 14-8 | Seattle Mariners | Preseason |
| Apr 17, 2025 | SEA at CIN | 11-7 | Seattle Mariners | Regular |
| Apr 16, 2025 | SEA at CIN | 5-3 | Seattle Mariners | Regular |
| Apr 15, 2025 | SEA at CIN | 4-8 | Cincinnati Reds | Regular |
| Mar 21, 2025 | CIN at SEA | 5-3 | Cincinnati Reds | Preseason |
| Mar 16, 2025 | SEA at CIN | 8-3 | Seattle Mariners | Preseason |
| Apr 17, 2024 | CIN at SEA | 1-5 | Seattle Mariners | Regular |
| Apr 16, 2024 | CIN at SEA | 1-3 | Seattle Mariners | Regular |
| Apr 15, 2024 | CIN at SEA | 3-9 | Seattle Mariners | Regular |
| Mar 21, 2024 | CIN at SEA | 6-7 | Seattle Mariners | Preseason |
| Mar 16, 2024 | SEA at CIN | 11-7 | Seattle Mariners | Preseason |
| Feb 26, 2024 | SEA at CIN | 2-0 | Seattle Mariners | Preseason |
| Sep 6, 2023 | SEA at CIN | 8-4 | Seattle Mariners | Regular |
| Sep 5, 2023 | SEA at CIN | 6-7 | Cincinnati Reds | Regular |
| Sep 4, 2023 | SEA at CIN | 3-6 | Cincinnati Reds | Regular |
| Mar 23, 2023 | SEA at CIN | 17-6 | Seattle Mariners | Preseason |
| Mar 10, 2023 | CIN at SEA | 3-11 | Seattle Mariners | Preseason |
| Apr 5, 2022 | SEA at CIN | 9-12 | Cincinnati Reds | Preseason |
| Mar 29, 2021 | SEA at CIN | 5-5 | Seattle Mariners | Preseason |
| Mar 12, 2021 | CIN at SEA | 3-4 | Seattle Mariners | Preseason |
| Feb 26, 2020 | SEA at CIN | 5-3 | Seattle Mariners | Preseason |
| Sep 12, 2019 | CIN at SEA | 11-5 | Cincinnati Reds | Regular |
| Sep 11, 2019 | CIN at SEA | 3-5 | Seattle Mariners | Regular |
| Sep 10, 2019 | CIN at SEA | 3-4 | Seattle Mariners | Regular |
| Mar 21, 2019 | CIN at SEA | 3-6 | Seattle Mariners | Preseason |
| Mar 7, 2019 | SEA at CIN | 11-3 | Seattle Mariners | Preseason |
| Feb 25, 2019 | CIN at SEA | 3-11 | Seattle Mariners | Preseason |
| Mar 11, 2018 | CIN at SEA | 6-5 | Cincinnati Reds | Preseason |
| Mar 10, 2018 | SEA at CIN | 5-2 | Seattle Mariners | Preseason |
| Mar 26, 2017 | SEA at CIN | 7-6 | Seattle Mariners | Preseason |
| Mar 11, 2017 | CIN at SEA | 6-7 | Seattle Mariners | Preseason |
| May 22, 2016 | SEA at CIN | 5-4 | Seattle Mariners | Regular |
| May 21, 2016 | SEA at CIN | 4-0 | Seattle Mariners | Regular |
| May 20, 2016 | SEA at CIN | 8-3 | Seattle Mariners | Regular |
| Mar 13, 2016 | CIN at SEA | 5-3 | Cincinnati Reds | Preseason |
| Mar 12, 2016 | SEA at CIN | 5-2 | Seattle Mariners | Preseason |
| Mar 8, 2015 | SEA at CIN | 1-10 | Cincinnati Reds | Preseason |
| Mar 7, 2014 | CIN at SEA | 10-9 | Cincinnati Reds | Preseason |
| Mar 3, 2014 | SEA at CIN | 6-5 | Seattle Mariners | Preseason |
| Jul 7, 2013 | SEA at CIN | 3-1 | Seattle Mariners | Regular |
| Jul 6, 2013 | SEA at CIN | 4-13 | Cincinnati Reds | Regular |
| Jul 5, 2013 | SEA at CIN | 4-2 | Seattle Mariners | Regular |
| Mar 25, 2013 | SEA at CIN | 16-0 | Seattle Mariners | Preseason |
| Mar 14, 2013 | CIN at SEA | 7-8 | Seattle Mariners | Preseason |
| Mar 20, 2012 | SEA at CIN | 8-1 | Seattle Mariners | Preseason |
| Mar 6, 2012 | CIN at SEA | 6-8 | Seattle Mariners | Preseason |
| Mar 4, 2011 | CIN at SEA | 3-1 | Cincinnati Reds | Preseason |
| Jun 20, 2010 | CIN at SEA | 0-1 | Seattle Mariners | Regular |
| Jun 19, 2010 | CIN at SEA | 1-5 | Seattle Mariners | Regular |
| Jun 18, 2010 | CIN at SEA | 0-1 | Seattle Mariners | Regular |
| Mar 26, 2010 | CIN at SEA | 5-6 | Seattle Mariners | Preseason |
| Mar 19, 2010 | SEA at CIN | 2-6 | Cincinnati Reds | Preseason |
| Jun 24, 2007 | CIN at SEA | 2-3 | Seattle Mariners | Regular |
| Jun 23, 2007 | CIN at SEA | 1-9 | Seattle Mariners | Regular |
| Jun 22, 2007 | CIN at SEA | 16-1 | Cincinnati Reds | Regular |
| Jun 20, 2002 | SEA at CIN | 3-2 | Seattle Mariners | Regular |
| Jun 19, 2002 | SEA at CIN | 2-0 | Seattle Mariners | Regular |
| Jun 18, 2002 | SEA at CIN | 8-1 | Seattle Mariners | Regular |
Completed games on file, which start in 2002 — not the clubs’ full all-time series. Regular season 62, postseason 0.