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Blue Jays Nation’s Mid-Season Prospect Countdown – No. 46: Trenton Wallace

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Photo credit:Niall O'Donohoe
Ryley Delaney
11 months ago
Do you like left-handed starters with funky arm actions? Well, then today’s article is for you.
If you’ve missed the other three articles (which will be linked at the bottom), we look at statistics, as well as my own observations. As we move closer to the Top 30, we’ll also pull scouting reports from Prospects Live, Baseball America, and MLB Pipeline.
Unfortunately, I won’t be writing scouting reports for the players in the mid-season update, as I don’t have the time to watch hours of minor league baseball to prep for this article.
Without further adieu, let’s look at Trenton Wallace.

Getting to know Trenton Wallace…

Position: Starting Pitcher
Throws: Left
Born: March 31, 1999
Acquired: 11th round, 2019 draft (Blue Jays)
Current Team: Double-A New Hampshire (Injured List)
Previous Ranking: 34
The 24-year-old left-handed pitcher started his season repeating the High-A level, where he had a 1.79 ERA and a 3.02 FIP in 40.1 innings pitched. Moreover. He had a 30.1 K% and a 7.1 BB%.
Wallace was eventually promoted to Double-A New Hampshire, where he has posted a 6.48 ERA and a 2.64 FIP in 8.1 innings pitched, along with a 17.5 K% and a 7.5 BB%. He hasn’t given up a home run, which is the reason why his FIP is so low.
Shortly after his promotion in early June, he landed on the injured list and hasn’t pitched since June 15th.
The lefty has a funky delivery, as his arm action is actually side arm. This poses a lot of problems for batters, especially those that bat left handed. As for his stuff, Wallace throws four pitches, a fastball that sits in the low-90s but has touched 94 mph, a slider, a changeup, and a curveball
The sweeping slider is his best pitch, especially paired with his funky arm action, as it had a 40 whiff% in Dunedin in 2022. The changeup is a pitch that can be thrown to both right-handed batters and left-handed batters, as he can throw it with some arm-side fade and drop. Wallace isn’t a flamethrower, but his deception helps the low-90s fastball play up.
Wallace has a ceiling as a back-end starter, but it’s more likely that he will transition into the bullpen in the next few seasons. Once he returns from the injured list, it’ll be paramount to find the groove he had in High-A.
For more Trenton Wallace content, check out this June interview from Tyson Shushkewich.

Next up:

The run of three straight pitchers in the Top 50 is done. Now, we’ll look at six straight position players, including a recently drafted player in the #45 spot! Stay tuned.

In case you missed it…


As always, you can follow me on Twitter, Instagram, and Threads @Brennan_L_D.

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