SEATTLE -- There is a new No. 1 atop the Mariners¡¯ midseason prospect rankings from MLB Pipeline, and perhaps to little surprise given the production and reputation Colt Emerson has developed in a little over one year after being selected by Seattle in the first round of the 2023 MLB Draft.

¡°His compete and his motor stand out most,¡± Mariners director of player development Justin Toole said. ¡°He loves the game and loves working to get better as a player. When you pair that with him being a really talented player, it¡¯s exciting.¡±

Fresh off a promotion last week from Single-A Modesto to High-A Everett, Emerson is slashing .278/.428/.399 (.827 OPS) with two homers, one triple, 13 doubles and 26 RBIs over 46 games between the affiliates, which also included a short rehab stint in the Arizona Complex League. Emerson also missed six weeks with a fracture in his foot after fouling a ball off the area in mid-May.

On a broader level, the new rankings also feature six Mariners players within MLB Pipeline¡¯s Top 100 overall prospects -- which is tied with the Cubs, Rockies, Guardians and Twins for the most in baseball.

¡°It¡¯s exciting watching those young guys take a step forward in their development,¡± Toole said. ¡°We, obviously, have a tremendous amount of talent at our lower levels that are starting to progress through our system. It¡¯s a group that works hard and competes, and they definitely feed off each other in a positive way. It¡¯s an exciting time for Mariners player development.¡±

Here¡¯s a look at the Mariners¡¯ top prospects:

1. Colt Emerson, SS/2B (MLB No. 30)
2. Cole Young, SS/2B (MLB No. 37)
3. Lazaro Montes, OF (MLB No. 48)
4. Harry Ford, C (MLB No. 53)
5. Felnin Celesten, SS (MLB No. 73)

Complete Top 30 list ?

Biggest jump/fall

Here are the players whose ranks changed the most from the preseason list, which does not include new additions

Jump: Jared Sundstrom, OF (Preseason: Unranked | Midseason: No. 30)

There wasn¡¯t much moving or shuffling within the Mariners¡¯ Top 30, as most players stayed in the same neighborhood of where they broke camp with. But a newcomer to the list is Sundstrom, who has been one of the most consistent hitters at High-A Everett, where he¡¯s slashed .261/.371/.438 (.809 OPS) with 11 homers and 49 RBIs in 89 games. A 10th-round pick by Seattle in 2023, the 6-foot-3 outfielder possesses above-average raw power that he¡¯s still learning how to tap into consistently. He¡¯s also swiped 21 bases, showing that his speed can be average to above.

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Fall: Dawel Joseph, SS (Preseason: 14 | Midseason: 21)

The headliner in last year¡¯s international signing class, Joseph has struggled at the pro level, with a slash line of .133/.287/.170 (.457 OPS) over 164 plate appearances across 43 games in the Dominican Summer League, with only five extra-base hits and zero homers. Joseph was ranked the No. 7 prospect in last year¡¯s international class, and he signed with Seattle for $3 million.

New to the list

Here are the players added to the Top 30 from outside the organization:

No. 7: Jurrangelo Cijntje, SWP (No. 15 pick in 2024 Draft)
No. 8: Ryan Sloan, RHP (No. 55 pick in 2024 Draft)
No. 25: Josh Caron, C (No. 121 pick in 2024 Draft)

Best tools

Players are graded on a 20-80 scouting scale for future tools -- 20-30 is well below average, 40 is below average, 50 is average, 60 is above average and 70-80 is well above average. Players in parentheses have the same grade.

Hit: 60 -- Colt Emerson (Cole Young, Jonny Farmelo)
Power: 65 -- Lazaro Montes
Run: 65 -- Jonny Farmelo
Arm: 60 -- Harry Ford (Tai Peete)
Defense: 60 -- Ben Williamson
Fastball: 70 -- Cole Phillips
Curveball: 55 -- Dylan Wilson
Slider: 55 -- Jurrangelo Cijntje (Ryan Sloan, Logan Evans, Teddy McGraw, Troy Taylor, Cole Phillips)
Changeup: 60 -- Ryan Sloan
Control: 60 -- Taylor Dollard