SF · P

Trevor McDonald

Age 25 B/T R/R 6′0″, 205 lb USA MLB debut 2024

40-man FV 45 · #12 in org

San Francisco’s roster as it stands #4 starter · 108 IP · 1.1 WAR in the role
Injured list Ended 2026 on the 60-day IL: Right elbow strain (since Jul 21)

Keystone Stuff 93 19th pct

2026 fWAR 0.7

Projected 2027 WAR 1.1 at 107 IP · 1.1 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,137 pitches

Keystone Stuff 93

Keystone Location 97

Keystone Pitching 89

Run value (xRV) +0.13

Strikeout % 18.4%

Walk % 7.4%

Whiff % 21.3%

Chase % 29.3%

Fastball velo 93.4

Extension 6.7 ft

70.1 IP5.12 ERA4.27 FIP 27° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 27° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Sinker58% use	58%	93.4	1.1	+16.4	99	107	10%	+0.78
Slider26% use	26%	85.8	−4.0	−10.0	91	88	39%	−0.38
Changeup15% use	15%	83.8	1.3	+13.3	86	88	33%	−0.80

No mix change or new pitch clears its bar. The arsenal is efficient for its shapes.

Most similar pitchers

Pitches like McDonald: same hand, shape, slot and mix

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
54	JR Ritchie ATL · ’03	95	−0.3	0.2	—
52	J.T. Ginn ATH · ’99	87	1.7	1.6	Pre-arb
50	Logan Webb SF · ’96	94	3.1	3.3	Signed $23.0M
47	Brady Singer CIN · ’96	94	0.1	1.2	Free agent
45	Jack Kochanowicz LAA · ’00	85	0.2	0.2	Pre-arb

Same-handed pitchers nearest on fastball velocity and shape, arm angle, extension, pitch mix, secondary shapes, Stuff, whiff rate and workload. 2026 regulars only.

Pitch locations · 2026

Where each pitch finishes, by batter side

Sinker 55%

52% zone

Changeup 23%

21% zone

Slider 21%

33% zone

Where each pitch finishes, catcher’s view. The bar marks the batter’s side; the box is an average strike zone. Pitches with 40+ thrown to this side.

Contract & projection

Club control (RosterResource) · Keystone projected WAR

2027 1.1 WAR —

2028 1.1 WAR —

2029 1.1 WAR —

2030 1.1 WAR —

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevel	Level	Team	Age	G	PA / IP	PA / IP ·Line
2026AAA	AAA	Sacramento River Cats	25	5	15 IP	15 IP · 5.40 ERA · 17.6% K · 22.1% BB
2025AAA	AAA	Sacramento River Cats	24	29	142.1 IP	142.1 IP · 5.31 ERA · 22.9% K · 9.9% BB

FanGraphs: FV 45 · ETA 2026. Public pitch tracking exists only at Triple-A and some Florida State League parks.