Today’s pitcher is the second Canadian to rank on this list!

This is Blue Jays Nation’s annual pre-season list, in which I’ll take a look at the top 50 prospects in the organization. We’ll look at the player’s stats, my observations, and other publications’ scouting reports if available.
Let’s take a look at Connor O’Halloran
<h2>Getting to know Connor O’Halloran…</h2>
Position: Starting Pitcher
Throws: Left
Born: September 1, 2002
Acquired: 5th-round, 2023 draft (Blue Jays)
2023 Team:Single-A Dunedin
Previous Ranking: 31
The Mississauga-native only pitched 10 innings of professional ball, so he stands pat as the 31st-ranked Blue Jays pitcher.
O’Halloran spent three seasons pitching for the University of Michigan, posting a 4.98 ERA in 202.1 innings pitched, along with a 25 K% and an 8.1 BB%. In his final season with Michigan, he had a 4.11 ERA in 103 innings pitched, along with a  25.5 K% and a 6 BB%. O’Halloran was the first pitcher in Michigan’s history with multiple 100-strikeout seasons.
After being selected by his hometown Blue Jays, O’Halloran was sent to the Dunedin Blue Jays, where he had a 6.30 ERA and a 6 FIP in 10 innings pitched, along with an 18.8 K% and a 16.7 BB%, not great numbers, but a fairly small sample size.
<a href="https://www.mlb.com/prospects/2023/bluejays/connor-o-halloran-683354">O’Halloran ranked as MLB Pipeline’s 30th-best prospect in their mid-season 2023 update</a>. According to his bio, it’s the control and deception that works for the left-handed pitcher, as his fastball sits in the high-90s and hits 93 mph. 
<blockquote class="twitter-tweet" data-width="550" data-dnt="true">
A masterful start by Connor O&#39;Halloran saw the sophomore lefty record 13 strikeouts in 8.0 innings of work as Michigan defeated Dayton 2-1 Thursday evening. <a href="https://twitter.com/hashtag/GoBlue?src=hash&amp;ref_src=twsrc%5Etfw">#GoBlue</a> <a href="https://t.co/ATKEqOsSxs">pic.twitter.com/ATKEqOsSxs</a>
&mdash; Michigan Baseball (@umichbaseball) <a href="https://twitter.com/umichbaseball/status/1504645698171674629?ref_src=twsrc%5Etfw">March 18, 2022</a></blockquote>
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
Moreover, his soft slider is his best pitch, as it’s graded 55 by the sit, while also featuring an average changeup and below average fastball. Although he had a high BB% in Dunedin, O’Halloran’s command and control is one of his best attributes.
Pipeline also believes he has a floor of back-end rotation starter, which is always a good sign for a recently drafted player. He’s mentioned on Fangraphs’ Top 31 list, where they peg him to be a “lefty-centric middle reliever”.
It’s likely O’Halloran will start his season with the Dunedin Blue Jays, but making it to Vancouver isn’t out of the question. Hopefully, his floor that MLB Pipeline gives him is where he ends up.
<h2>In case you missed it…</h2>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-the-honourable-mentions">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown: The honourable mentions</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-41-manuel-beltre">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 41: Manuel Beltre</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-40-yhoangel-aponte">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 40: Yhoangel Aponte</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-39-dasan-brown">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 39: Dasan Brown</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-38-peyton-williams">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 38: Peyton Williams</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-37-nick-goodwin">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 37: Nick Goodwin</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-36-hagen-danner">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 36: Hagen Danner</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-35-rainer-nunez">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 35: Rainer Nuñez</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-34-hayden-juenger">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 34: Hayden Juenger</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-33-junior-arias">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 33: Junior Arias</a>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-32-michael-dominguez">Blue Jays Nation&#8217;s Pre-Season Prospect Countdown &#8211; No. 32: Michael Dominguez</a>
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As always, you can follow me on Twitter, Instagram, and Threads @Brennan_L_D.
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<h2 class="mb-5 text-2xl font-bold" style="text-align: center"><a class="text-accent" href="https://gml-grp.com/C.ashx?btag=a_24038b_2065c_&amp;affid=7966&amp;siteid=24038&amp;adid=2065&amp;c=" target="_blank" rel="noopener noreferrer nofollow">ARTICLE PRESENTED BY BETANO</a></h2>
<img loading="lazy" decoding="async" class="aligncenter size-full wp-image-61491" src="https://publish.bluejaysnation.com/wp-content/uploads/sites/8/2023/04/Betano_ON_Base_727x404-1.png" alt="" width="727" height="404" srcset="https://publish.bluejaysnation.com/wp-content/uploads/sites/8/2023/04/Betano_ON_Base_727x404-1.png 727w, https://publish.bluejaysnation.com/wp-content/uploads/sites/8/2023/04/Betano_ON_Base_727x404-1-300x167.png 300w" sizes="auto, (max-width: 727px) 100vw, 727px" />

Today’s pitcher is the second Canadian to rank on this list!



This is Blue Jays Nation’s annual pre-season list, in which I’ll take a look at the top 50 prospects in the organization. We’ll look at the player’s stats, my observations, and other publications’ scouting reports if available.

Let’s take a look at Connor O’Halloran
<h2>Getting to know Connor O’Halloran…</h2>
Position: Starting Pitcher

Throws: Left

Born: September 1, 2002

Acquired: 5th-round, 2023 draft (Blue Jays)

2023 Team:Single-A Dunedin

Previous Ranking: 31

The Mississauga-native only pitched 10 innings of professional ball, so he stands pat as the 31st-ranked Blue Jays pitcher.

O’Halloran spent three seasons pitching for the University of Michigan, posting a 4.98 ERA in 202.1 innings pitched, along with a 25 K% and an 8.1 BB%. In his final season with Michigan, he had a 4.11 ERA in 103 innings pitched, along with a  25.5 K% and a 6 BB%. O’Halloran was the first pitcher in Michigan’s history with multiple 100-strikeout seasons.

After being selected by his hometown Blue Jays, O’Halloran was sent to the Dunedin Blue Jays, where he had a 6.30 ERA and a 6 FIP in 10 innings pitched, along with an 18.8 K% and a 16.7 BB%, not great numbers, but a fairly small sample size.

<a href="https://www.mlb.com/prospects/2023/bluejays/connor-o-halloran-683354">O’Halloran ranked as MLB Pipeline’s 30th-best prospect in their mid-season 2023 update</a>. According to his bio, it’s the control and deception that works for the left-handed pitcher, as his fastball sits in the high-90s and hits 93 mph. 

https://twitter.com/umichbaseball/status/1504645698171674629

Moreover, his soft slider is his best pitch, as it’s graded 55 by the sit, while also featuring an average changeup and below average fastball. Although he had a high BB% in Dunedin, O’Halloran’s command and control is one of his best attributes.

Pipeline also believes he has a floor of back-end rotation starter, which is always a good sign for a recently drafted player. He’s mentioned on Fangraphs’ Top 31 list, where they peg him to be a “lefty-centric middle reliever”.

It’s likely O’Halloran will start his season with the Dunedin Blue Jays, but making it to Vancouver isn’t out of the question. Hopefully, his floor that MLB Pipeline gives him is where he ends up.
<h2>In case you missed it…</h2>
<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-the-honourable-mentions">Blue Jays Nation's Pre-Season Prospect Countdown: The honourable mentions</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-41-manuel-beltre">Blue Jays Nation's Pre-Season Prospect Countdown - No. 41: Manuel Beltre</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-40-yhoangel-aponte">Blue Jays Nation's Pre-Season Prospect Countdown - No. 40: Yhoangel Aponte</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-39-dasan-brown">Blue Jays Nation's Pre-Season Prospect Countdown - No. 39: Dasan Brown</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-38-peyton-williams">Blue Jays Nation's Pre-Season Prospect Countdown - No. 38: Peyton Williams</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-37-nick-goodwin">Blue Jays Nation's Pre-Season Prospect Countdown - No. 37: Nick Goodwin</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-36-hagen-danner">Blue Jays Nation's Pre-Season Prospect Countdown - No. 36: Hagen Danner</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-35-rainer-nunez">Blue Jays Nation's Pre-Season Prospect Countdown - No. 35: Rainer Nuñez</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-34-hayden-juenger">Blue Jays Nation's Pre-Season Prospect Countdown - No. 34: Hayden Juenger</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-33-junior-arias">Blue Jays Nation's Pre-Season Prospect Countdown - No. 33: Junior Arias</a>

<a href="https://bluejaysnation.com/news/blue-jays-nations-pre-season-prospect-countdown-no-32-michael-dominguez">Blue Jays Nation's Pre-Season Prospect Countdown - No. 32: Michael Dominguez</a>

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As always, you can follow me on Twitter, Instagram, and Threads @Brennan_L_D.

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<h2 class="mb-5 text-2xl font-bold" style="text-align: center"><a class="text-accent" href="https://gml-grp.com/C.ashx?btag=a_24038b_2065c_&amp;affid=7966&amp;siteid=24038&amp;adid=2065&amp;c=" target="_blank" rel="noopener noreferrer nofollow">ARTICLE PRESENTED BY BETANO</a></h2>
<img class="aligncenter size-full wp-image-61491" src="https://publish.bluejaysnation.com/wp-content/uploads/sites/8/2023/04/Betano_ON_Base_727x404-1.png" alt="" width="727" height="404" />

Blue Jays Nation’s Pre-Season Prospect Countdown – No. 31: Connor O’Halloran

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