San Francisco Giants vs Seattle Mariners head-to-head
Who has won more, the San Francisco Giants or the Seattle Mariners?
San Francisco Giants lead the series 62-54 in 119 meetings since Jun 17, 1997. They average 5.0 to 4.8. The last meeting was Jul 19, 2026, 6-3.
- Record
- San Francisco Giants 62-54-3 Seattle Mariners
- Games
- 119
- Points per game
- 5.0 – 4.8
- Biggest win
- Seattle Mariners by 15
Seattle Mariners have won the last 2 meetings.
Every meeting on file
| Jul 19, 2026 |  SF at  SEA | 3-6 | Seattle Mariners | Regular |
| Jul 18, 2026 | SF at SEA | 3-4 | Seattle Mariners | Regular |
| Jul 17, 2026 | SF at SEA | 7-0 | San Francisco Giants | Regular |
| Mar 4, 2026 | SEA at SF | 4-9 | San Francisco Giants | Preseason |
| Feb 21, 2026 | SF at SEA | 10-5 | San Francisco Giants | Preseason |
| Apr 6, 2025 | SEA at SF | 4-5 | San Francisco Giants | Regular |
| Apr 5, 2025 | SEA at SF | 1-4 | San Francisco Giants | Regular |
| Apr 4, 2025 | SEA at SF | 9-10 | San Francisco Giants | Regular |
| Mar 15, 2025 | SEA at SF | 2-6 | San Francisco Giants | Preseason |
| Feb 27, 2025 | SF at SEA | 6-4 | San Francisco Giants | Preseason |
| Aug 25, 2024 | SF at SEA | 3-4 | Seattle Mariners | Regular |
| Aug 24, 2024 | SF at SEA | 4-3 | San Francisco Giants | Regular |
| Aug 23, 2024 | SF at SEA | 5-6 | Seattle Mariners | Regular |
| Mar 10, 2024 | SF at SEA | 3-8 | Seattle Mariners | Preseason |
| Feb 27, 2024 | SEA at SF | 10-10 | Seattle Mariners | Preseason |
| Jul 5, 2023 | SEA at SF | 0-2 | San Francisco Giants | Regular |
| Jul 4, 2023 | SEA at SF | 6-0 | Seattle Mariners | Regular |
| Jul 3, 2023 | SEA at SF | 6-5 | Seattle Mariners | Regular |
| Mar 25, 2023 | SEA at SF | 4-7 | San Francisco Giants | Preseason |
| Mar 16, 2023 | SF at SEA | 0-0 | San Francisco Giants | Preseason |
| Apr 3, 2021 | SF at SEA | 0-4 | Seattle Mariners | Regular |
| Apr 2, 2021 | SF at SEA | 6-3 | San Francisco Giants | Regular |
| Apr 1, 2021 | SF at SEA | 7-8 | Seattle Mariners | Regular |
| Mar 27, 2021 | SF at SEA | 0-5 | Seattle Mariners | Preseason |
| Mar 18, 2021 | SEA at SF | 6-3 | Seattle Mariners | Preseason |
| Sep 17, 2020 | SF at SEA | 6-4 | San Francisco Giants | Regular |
| Sep 16, 2020 | SF at SEA | 9-3 | San Francisco Giants | Regular |
| Sep 9, 2020 | SEA at SF | 1-10 | San Francisco Giants | Regular |
| Sep 8, 2020 | SEA at SF | 5-6 | San Francisco Giants | Regular |
| Mar 8, 2020 | SEA at SF | 4-8 | San Francisco Giants | Preseason |
| Feb 27, 2020 | SF at SEA | 5-4 | San Francisco Giants | Preseason |
| Mar 13, 2019 | SF at SEA | 4-8 | Seattle Mariners | Preseason |
| Jul 25, 2018 | SF at SEA | 2-3 | Seattle Mariners | Regular |
| Jul 24, 2018 | SF at SEA | 4-3 | San Francisco Giants | Regular |
| Apr 4, 2018 | SEA at SF | 1-10 | San Francisco Giants | Regular |
| Apr 3, 2018 | SEA at SF | 6-4 | Seattle Mariners | Regular |
| Mar 14, 2018 | SF at SEA | 4-5 | Seattle Mariners | Preseason |
| Mar 9, 2018 | SEA at SF | 7-10 | San Francisco Giants | Preseason |
| Mar 8, 2018 | SF at SEA | 4-0 | San Francisco Giants | Preseason |
| Mar 23, 2017 | SEA at SF | 9-2 | Seattle Mariners | Preseason |
| Mar 18, 2017 | SF at SEA | 5-6 | Seattle Mariners | Preseason |
| Mar 16, 2016 | SF at SEA | 6-9 | Seattle Mariners | Preseason |
| Mar 11, 2016 | SEA at SF | 5-4 | Seattle Mariners | Preseason |
| Jun 18, 2015 | SF at SEA | 7-0 | San Francisco Giants | Regular |
| Jun 17, 2015 | SF at SEA | 0-2 | Seattle Mariners | Regular |
| Jun 16, 2015 | SEA at SF | 2-6 | San Francisco Giants | Regular |
| Jun 15, 2015 | SEA at SF | 5-1 | Seattle Mariners | Regular |
| Mar 28, 2015 | SF at SEA | 9-8 | San Francisco Giants | Preseason |
| Mar 15, 2014 | SF at SEA | 13-6 | San Francisco Giants | Preseason |
| Mar 8, 2014 | SEA at SF | 18-3 | Seattle Mariners | Preseason |
| Mar 19, 2013 | SF at SEA | 3-6 | Seattle Mariners | Preseason |
| Feb 28, 2013 | SEA at SF | 4-3 | Seattle Mariners | Preseason |
| Jun 17, 2012 | SF at SEA | 1-2 | Seattle Mariners | Regular |
| Jun 16, 2012 | SF at SEA | 4-7 | Seattle Mariners | Regular |
| Jun 15, 2012 | SF at SEA | 4-2 | San Francisco Giants | Regular |
| Mar 15, 2012 | SF at SEA | 7-5 | San Francisco Giants | Preseason |
| Mar 11, 2012 | SEA at SF | 5-7 | San Francisco Giants | Preseason |
| Mar 8, 2011 | SF at SEA | 0-1 | Seattle Mariners | Preseason |
| Mar 6, 2011 | SEA at SF | 1-6 | San Francisco Giants | Preseason |
| Apr 4, 2010 | SEA at SF | 7-1 | Seattle Mariners | Preseason |
| Mar 13, 2010 | SF at SEA | 8-4 | San Francisco Giants | Preseason |
| Mar 11, 2010 | SEA at SF | 6-2 | Seattle Mariners | Preseason |
| Mar 3, 2010 | SF at SEA | 8-7 | San Francisco Giants | Preseason |
| May 24, 2009 | SF at SEA | 4-5 | Seattle Mariners | Regular |
| May 23, 2009 | SF at SEA | 5-1 | San Francisco Giants | Regular |
| May 22, 2009 | SF at SEA | 1-2 | Seattle Mariners | Regular |
| Mar 23, 2009 | SEA at SF | 5-1 | Seattle Mariners | Preseason |
| Feb 28, 2009 | SF at SEA | 4-6 | Seattle Mariners | Preseason |
| Mar 27, 2008 | SEA at SF | 7-2 | Seattle Mariners | Preseason |
| Mar 15, 2008 | SEA at SF | 8-14 | San Francisco Giants | Preseason |
| Mar 13, 2008 | SF at SEA | 3-3 | San Francisco Giants | Preseason |
| Feb 29, 2008 | SEA at SF | 5-3 | Seattle Mariners | Preseason |
| Mar 29, 2007 | SEA at SF | 0-4 | San Francisco Giants | Preseason |
| Mar 27, 2007 | SF at SEA | 9-8 | San Francisco Giants | Preseason |
| Mar 15, 2007 | SF at SEA | 5-3 | San Francisco Giants | Preseason |
| Mar 11, 2007 | SEA at SF | 3-8 | San Francisco Giants | Preseason |
| Mar 7, 2007 | SF at SEA | 5-4 | San Francisco Giants | Preseason |
| Mar 4, 2007 | SEA at SF | 4-5 | San Francisco Giants | Preseason |
| Jun 18, 2006 | SF at SEA | 1-5 | Seattle Mariners | Regular |
| Jun 17, 2006 | SF at SEA | 1-8 | Seattle Mariners | Regular |
| Jun 16, 2006 | SF at SEA | 4-5 | Seattle Mariners | Regular |
| Mar 18, 2006 | SEA at SF | 3-14 | San Francisco Giants | Preseason |
| Mar 8, 2006 | SF at SEA | 4-2 | San Francisco Giants | Preseason |
| Mar 18, 2005 | SEA at SF | 3-4 | San Francisco Giants | Preseason |
| Mar 16, 2005 | SF at SEA | 1-4 | Seattle Mariners | Preseason |
| Mar 26, 2004 | SF at SEA | 4-10 | Seattle Mariners | Preseason |
| Mar 26, 2004 | SF at SEA | 4-10 | Seattle Mariners | Preseason |
| Mar 19, 2004 | SEA at SF | 8-5 | Seattle Mariners | Preseason |
| Mar 30, 2003 | SEA at SF | 3-1 | Seattle Mariners | Preseason |
| Mar 18, 2003 | SEA at SF | 3-7 | San Francisco Giants | Preseason |
| Mar 15, 2003 | SEA at SF | 4-5 | San Francisco Giants | Preseason |
| Mar 12, 2003 | SF at SEA | 5-7 | Seattle Mariners | Preseason |
| Mar 7, 2003 | SF at SEA | 8-5 | San Francisco Giants | Preseason |
| Mar 5, 2003 | SEA at SF | 10-7 | Seattle Mariners | Preseason |
| Mar 15, 2002 | SF at SEA | 9-1 | San Francisco Giants | Preseason |
| Mar 14, 2002 | SEA at SF | 4-5 | San Francisco Giants | Preseason |
| Mar 8, 2002 | SEA at SF | 13-8 | Seattle Mariners | Preseason |
| Jul 14, 2001 | SF at SEA | 2-3 | Seattle Mariners | Regular |
| Jul 13, 2001 | SF at SEA | 5-3 | San Francisco Giants | Regular |
| Jul 12, 2001 | SF at SEA | 3-4 | Seattle Mariners | Regular |
| Mar 30, 2001 | SEA at SF | 0-2 | San Francisco Giants | Preseason |
| Mar 16, 2001 | SEA at SF | 2-12 | San Francisco Giants | Preseason |
| Mar 8, 2001 | SF at SEA | 2-1 | San Francisco Giants | Preseason |
| Jun 11, 2000 | SEA at SF | 9-2 | Seattle Mariners | Regular |
| Jun 10, 2000 | SEA at SF | 5-2 | Seattle Mariners | Regular |
| Jun 9, 2000 | SEA at SF | 2-9 | San Francisco Giants | Regular |
| Mar 24, 2000 | SEA at SF | 4-9 | San Francisco Giants | Preseason |
| Mar 19, 2000 | SF at SEA | 6-5 | San Francisco Giants | Preseason |
| Mar 8, 2000 | SF at SEA | 1-4 | Seattle Mariners | Preseason |
| Jun 13, 1999 | SF at SEA | 8-4 | San Francisco Giants | Regular |
| Jun 12, 1999 | SF at SEA | 15-11 | San Francisco Giants | Regular |
| Jun 11, 1999 | SF at SEA | 3-7 | Seattle Mariners | Regular |
| Jun 10, 1998 | SEA at SF | 4-1 | Seattle Mariners | Regular |
| Jun 9, 1998 | SEA at SF | 6-7 | San Francisco Giants | Regular |
| Jun 8, 1998 | SEA at SF | 3-4 | San Francisco Giants | Regular |
| Jul 1, 1997 | SF at SEA | 4-15 | Seattle Mariners | Regular |
| Jun 30, 1997 | SF at SEA | 8-6 | San Francisco Giants | Regular |
| Jun 18, 1997 | SEA at SF | 2-4 | San Francisco Giants | Regular |
| Jun 17, 1997 | SEA at SF | 3-4 | San Francisco Giants | Regular |
Completed games on file, which start in 1997 — not the clubs’ full all-time series. Regular season 119, postseason 0.