Jake Bloss ranks as Blue Jays Nation’s 19th-best prospect in 2025 mid-season update

The 2025 season was supposed to be the year Jake Bloss made an impact at the big league level, but the right-handed pitcher has barely pitched this season due to Tommy John surgery.

This is Blue Jays Nation’s annual mid-season prospect list, where we’ll take a look at the 50 best prospects in the Toronto Blue Jays organization. I’ll look at the player’s stats, what other publications have to say, as well as my own observations of the players.

Bloss was seen as starting pitching depth for the Blue Jays in 2025, but he struggled to begin the year and eventually went under the knife for Tommy John surgery in May. Despite this, he ranks as our 19th-best Blue Jays prospect. If you missed the 20th-best Blue Jays’ prospect, you can read about Riley Tirotta here.

Getting to know Jake Bloss…

Position: Starting pitcher

Throws: Right

Born: June 23rd, 2001

Acquired: Trade with Houston Astros

Previous ranking: Sixth (2025 pre-season)

The Houston Astros selected Jake Bloss in the third round of the 2023 draft out of Georgetown University. Between the Arizona Complex League and Single-A, the 6’3”, 223 lbs righty pitched just 18.2 innings, authoring a 2.89 ERA and 3.36 FIP, with a 29.1 K% and 15.2 BB%.

Bloss broke out in a big way in 2024, beginning the season for the Astros’ High-A team. There, he posted a 2.08 ERA and 2.81 FIP in 17.1 innings pitched. He was promoted to Double-A, where he had a 1.61 ERA and 3.30 FIP in 44.2 innings pitched, and then he made one scoreless start with their Triple-A team before being called up to the Astros.

The righty didn’t have a great big league debut, finishing with a 6.94 ERA and 7.62 FIP in 11.2 innings pitched, with a 20 K% and 5.5 BB%. Before the 2024 trade deadline, Bloss was packaged with Joey Loperfido and Will Wagner to the Blue Jays for Yusei Kikuchi.

After the trade, Bloss was optioned to the Triple-A Buffalo Bisons, where he had a 6.91 ERA and 5.87 FIP in 27.1 innings pitched. Bloss’ first three games were scoreless, before he struggled over his final five games.

Before getting Tommy John surgery, Bloss made six starts with the Bisons in 2025, where he had a 6.46 ERA and 4.78 FIP in 23.2 innings pitched, with a 20.9 K% and an 11.3 BB%. He’ll likely make his return toward the end of the 2026 season.

Although Bloss will be out of action for a while, he ranked as MLB Pipeline’s eighth-best prospect in their mid-season update. One thing Bloss is known for is his baseball IQ, but he was sitting in the mid-90s with the heater and has touched as high as 98 mph. 

As for his secondary pitches, he features an above-average curveball and slider, as well as a fringy cutter and below-average changeup. His control was one of his best attributes before the surgery, but that’s usually what comes back last after Tommy John surgery.