Friday, February 6, 2026

DrB's 2026 Giants Top 50 Prospects: #9 Trevor McDonald


9. Trevor McDonald RHP.  DOB:  2/26/2001.  6' 2", 201 lbs.  40-Man Roster, 1 Option.

2025(AAA):  9-9, 5.31, 142.1 IP, 9.11 K/9, 3.92 BB/9, 2.03 GB/FB.
2025(MLB):  1-0, 1.80, 15 IP,  8.40 K/9, 1.20 BB/9, 2.30 GB/FB.  

I really liked McDonald as a pitching prospect since I saw him pitch in A ball.  He finally made it to The Show late last season and opened a few eyes in the process allowing just 1 ER in 13 IP over his final two games and striking out 10 in his final start.  His ground ball rates are elite.   His pitch mix includes a 93-94 MPH sinker which he threw 40% and a tight, hard curveball which he threw 50%.  Fangraphs also has him throwing a changeup and slider about 5% each.  The changeup was his least effective pitch.  Looking back in my mind's eye, I swear I saw a changeup that had the makings of a plus pitch.  Delivering that more often would seem to be the best path to a full SP pitch mix.  

At this point, Landen Roupp looks like the presumptive 5'th starter in the rotation but it's highly likely the Giants will need more than 5 SP's over the course of the season and McDonald should be an early option when more are needed.

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