Seattle Mariners Select College Talent in Rounds 5-12 of 2026 Draft

Seattle Mariners bolstered their farm system on July 13, 2026 by selecting seven college players in rounds 5‑12 of the 2026 MLB Draft, adding depth to a roster that sits 6th in the American League with a 48-49 record after a 2-8 win at Tampa Bay on 2026-07-12.

Who did the Mariners pick in the middle rounds?

The Mariners opened Day 2 with outfielder Hayden Yost from Florida in the 5th round (162nd overall). Yost posted a .262/.369/.589 slash line with ten homers and 23 RBIs in 42 games. The 6th‑round pick was power‑hitting Henry Ford, a 3B/OF from Tennessee who slashed .293/.360/.603 and belted 20 home runs in 58 contests. In the 7th round Seattle grabbed shortstop Ryan Wynn from Georgia, who posted a .323/.377/.638 line and helped the Bulldogs reach the College World Series.

Which positions did Seattle target?

Mariners continued to load the draft with position players. In the 8th round they chose catcher Mason Eckelman from Ohio State, who hit .304/.422/.546 and drove in 47 runs. The 9th round brought right‑hander Drew Whalen from Auburn, who posted a 2.45 ERA and 11 strikeouts in six appearances before an injury cut his season short. The 10th round saw second‑baseman Eric Jeon from Stanford, a right‑handed hitter who posted a .323/.425/.540 slash line in 46 games.

What about the pitching prospects?

Seattle added three more arms after Whalen. In round 11 the club drafted Wyatt Queen, a right‑hander from Oregon State who logged a 2.49 ERA and 78 strikeouts over 47 innings. The 12th‑round pick was Connor Marshburn, another right‑hander from UNC Wilmington, who posted a 4.57 ERA with 81 strikeouts in 80.2 innings across 15 starts. Both pitchers will join a Pacific‑Northwest‑centric farm system that already features several local talents.

Why does this draft strategy matter for Seattle?

The Mariners’ college‑heavy approach reflects a desire to accelerate the pipeline of MLB‑ready talent. By targeting players with strong slash lines and proven power, Seattle hopes to shorten the development curve for hitters like Ford and Wynn. Pitchers such as Queen and Marshburn bring durability and strikeout ability, traits the major‑league staff values as they look to reinforce a bullpen that struggled early in the season. With the club hovering just below .500, these prospects could become key contributors in the next two‑year window.

What’s next for the new draftees?

All seven players will report to the Mariners’ rookie‑level complex this fall. Their performance in instructional leagues will determine whether any earn a spot in High‑A by next spring. For fans, the draft offers a glimpse of the talent pool that could help Seattle climb out of the AL’s middle of the pack and push toward a postseason berth.