MatchWiz

Merrill Kelly

Merrill Kelly — 8-11, 5.37 ERA. The model's read on his matchups, graded in the open.

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Season line · ERA
5.37
8-11 · 84 K, 1.52 WHIP
Games graded
23
this season, box-score final
Merrill Kelly
PBats RThrows RArizona Diamondbacks

Season line

23 starts, 8-11, 5.37 ERA, 1.52 WHIP, 129.0 innings. He's struck out 84 over that span, against 57 walks. This is the baseline the matchup adjusts from — the model starts here and then asks what the specific lineup he's facing does to strikeout arms, how the park plays, and how deep he's likely to go.

He throws right-handed

Merrill throws right-handed, which is the ordinary case and means fewer wild swings in the lineup he faces. Opposing managers aren't restacking against him the way they would a left-hander, so his projection moves more on the quality of the lineup than on its handedness. What does move it: how deep he's been going lately, and whether the lineup in front of him strikes out.

His last 5 starts

Merrill has 19 strikeouts in 25.3 innings across his last 5 starts, a 6.8 K/9, with a 6.39 ERA over that stretch and 16 walks. Strikeouts are the one pitcher market where our model has found real, graded room — projected workload and the specific lineup he draws move that number more than a season-long rate does. Start-by-start detail is in the log below.

Strikeouts and control

Merrill has 84 strikeouts and 57 walks in 129.0 innings this season — 5.9 K/9 against 4.0 BB/9, a 1.5-to-1 ratio. That walk rate is the risk in every projection on him. Free passes run up pitch counts, and a short outing caps the strikeout and outs numbers no matter how favourable the lineup looks. His floor is genuinely lower than his stuff suggests.

What his floor looks like

Merrill has made 23 starts this season, averaging 5.6 innings with a 5.37 ERA across them. In the 12 starts we hold detailed lines for, he got through five or more innings 11 times. That ratio is the honest read on his floor, and it's what separates an arm worth projecting on the outs board from one whose good starts are unpredictable enough that the market prices them better than we do.

How long he goes

Merrill is averaging 5.3 innings a start across his last 8 outings, with a high of 7.0 and about 87 pitches a night. He's not going deep, and that caps the strikeout and outs projections no matter how good the matchup looks — you can't strike out hitters you don't face. Expected batters faced is one of the bigger inputs to his score for exactly this reason.

His best start in the log

Merrill's high-water mark was Monday, July 27, 2026 at PIT: 6 strikeouts over 5.7 innings, 0 earned runs. One start doesn't set a projection — the model works off the blend of his recent work against the specific lineup in front of him — but it does show the ceiling when the matchup lines up.

How the model reads him

Every arm on the slate goes through the same math, Merrill included. Opposing lineup, handedness, expected batters faced, park, weather — weighted, combined, and normalized 0–100. We keep the weighting to ourselves and re-tune it weekly on real results. What we don't keep is the record: every projection here is graded against the box score at the line the market offered.

What we'd flag

Three caveats worth carrying. Not every player gets a posted line — book coverage runs to about 87% for confirmed starters, so a blank line is the market's silence, not ours. Lineup changes land late enough to strand a projection published hours earlier. And judging any of this on a single night is meaningless; the model is tuned on hundreds of settled outcomes.

Recent game log

DateOppIPKHERBB
Tuesday, August 18@ BOS4.02764
Wednesday, August 12vs COL5.02663
Friday, August 7vs LAD5.74214
Sunday, August 2@ CLE5.05854
Monday, July 27@ PIT5.76401
Wednesday, July 22vs ATH5.03521
Friday, July 17vs STL5.03412
Thursday, July 9@ SD7.06313
Saturday, July 4vs MIL5.06822
Sunday, June 28@ TB6.03852
Monday, June 22@ STL6.02733
Tuesday, June 16vs LAA5.341161

Merrill Kelly — FAQ

How has Merrill Kelly been pitching lately?

Over his last 5 starts, Merrill has 19 strikeouts in 25.3 innings, allowing 18 earned runs. Start-by-start detail is in the log on this page.

Are Merrill Kelly's projections betting advice?

No. Every number on this page is a research signal from a statistical model, published alongside its graded record so you can judge it yourself. The model is re-tuned weekly and can be wrong on any given day. Nothing here is a guaranteed outcome. 21+, please play responsibly (1-800-GAMBLER).

Projections are a research signal from our model, graded against real box-score results — not betting advice. 21+, please play responsibly (1-800-GAMBLER).