MLB2026

Seattle Mariners

In the reviewed sample, Seattle produced concentrated multi-run scoring but also left repeated chances unconverted and absorbed two shutout losses.

7 reviewed games through Sep 26, 2026. This profile summarizes Upon Review's reviewed sample, not every game the team played.

What we keep seeing

Scoring clustered into multi-run innings

Strong

Seattle generated multi-run output in four cited innings or rallies across three reviewed games, including a three-run fifth, a three-run ninth, and multiple two-run scoring sequences.

vs Los Angeles Angels · Sep 26, 2026vs Los Angeles Angels · Sep 17, 2026vs Philadelphia Phillies · Aug 26, 2026

Scoring threats often went unfinished

Strong

Several reviewed opportunities ended without runs: a runner on third was stranded, a bases-loaded chance ended on a popup, and two separate two-runner threats ended on flyouts.

vs Houston Astros · Sep 23, 2026vs Los Angeles Angels · Sep 16, 2026vs Los Angeles Angels · Sep 15, 2026

Strengths

Capacity for multi-run scoring

Strong

Across three reviewed games, Seattle turned individual innings or rallies into multi-run output, including two-run, three-run, and late two-out scoring bursts.

vs Los Angeles Angels · Sep 26, 2026vs Los Angeles Angels · Sep 17, 2026vs Philadelphia Phillies · Aug 26, 2026

One effective relief finish

Thin

In one reviewed win, Seattle's relief corps covered 4.2 scoreless innings with no walks and six strikeouts to preserve the result.

vs Los Angeles Angels · Sep 17, 2026

Weaknesses

Unconverted scoring opportunities

Strong

Seattle failed to convert several cited scoring chances, including a runner-on-third situation, a bases-loaded chance, and two separate threats with two runners aboard.

vs Houston Astros · Sep 23, 2026vs Los Angeles Angels · Sep 16, 2026vs Los Angeles Angels · Sep 15, 2026

Opponent plan

Deny

We do not have enough reviewed evidence to suggest this yet.

Attack

We do not have enough reviewed evidence to suggest this yet.

Avoid

We do not have enough reviewed evidence to suggest this yet.

Reviewed games

Mechanisms we've seen