All Park Factors have already been halved for use on full season stats.
| 2018 | Mariners | 97 | 98 | 94 | 93 | 84 | 91 | 100 | 99 |
| 2017 | Mariners | 97 | 98 | 94 | 93 | 84 | 91 | 100 | 99 |
| 2016 | Mariners | 97 | 98 | 94 | 93 | 84 | 91 | 100 | 99 |
| 2015 | Mariners | 98 | 98 | 96 | 96 | 82 | 90 | 100 | 98 |
| 2014 | Mariners | 98 | 98 | 96 | 96 | 82 | 90 | 100 | 98 |
| 2013 | Mariners | 98 | 98 | 96 | 96 | 82 | 90 | 100 | 98 |
| 2012 | Mariners | 97 | 100 | 90 | 97 | 82 | 98 | 94 | 89 |
| 2011 | Mariners | 97 | 100 | 90 | 97 | 82 | 98 | 94 | 89 |
| 2010 | Mariners | 97 | 100 | 90 | 97 | 82 | 98 | 94 | 89 |
| 2009 | Mariners | 99 | 99 | 91 | 98 | 82 | 95 | 98 | 93 |
| 2008 | Mariners | 99 | 98 | 94 | 98 | 87 | 93 | 96 | 93 |
| 2007 | Mariners | 100 | 99 | 96 | 97 | 87 | 91 | 97 | 94 |
| 2006 | Mariners | 98 | 97 | 96 | 99 | 84 | 88 | 100 | 95 |
| 2005 | Mariners | 98 | 96 | 95 | 96 | 85 | 89 | 103 | 95 |
| 2004 | Mariners | 98 | 97 | 95 | 95 | 94 | 92 | 102 | 92 |
| 2003 | Mariners | 98 | 97 | 95 | 95 | 94 | 92 | 102 | 92 |
| 2002 | Mariners | 98 | 97 | 95 | 95 | 94 | 92 | 102 | 92 |
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