LHP · BOS vs ATHno lineupbig upsidebig night blocked
9:40 PM ET · Sutter Health Park · 2026-07-28calibrated
✕ he hasn't been allowed past ~82 pitches lately, so his night ends early
Big night (8+ K)
9%
low chance
Projection
4.5K
our best guess — sim average, accuracy-adjusted
Typical night
4K
the middle outcome
Good night
6K
top 25% of sims
Ceiling
7K
top 10% — the max-out
Upside room
+3.0fat
ceiling minus typical
His line
3.5
Chance to clear it
66%
how often the sim has him finish above his line — a fact, not a pick
“Strikeouts aren't his game — just 19% of hitters go down swinging, facing a middle-of-the-road lineup for strikeouts (25%) — but he hasn't been allowed past ~82 pitches lately, so his night ends early, so the monster strikeout night is off the table; expect something near 4.5.”
K distribution
40,000 sims
all simsbest-stuff nightsshare of sims
strikeouts
Chance he clears each strikeout line
4+ Ks66%
5+ Ks48%
6+ Ks28%
7+ Ks16%
8+ Ks9%
9+ Ks4%
10+ Ks<1%
11+ Ks<1%
12+ Ks<1%
Risk assessment — how this read can go wrong
69high
Tonight's three scenarios
His best stuff shows up
22%→ 5 K
An ordinary night
61%→ 4 K
A rough night (early exit)
17%→ 3 K
Floor (P10)
2 K
Bust chance
32%
Swing
±2.1 K
Shape
0.5×down/up
Chance of a dud32% of simulated nights end with 3 strikeouts or fewer25/25
Early-exit chance17% of simulated nights go sideways and he's out of the game early
Tonight's form
3/9
fastball -0.6 mph slower than his season norm — injury-risk flag0/2
finishing fewer hitters off with two strikes than usual (-9.6%)0/2
fully rested (6 days)1/1
this lineup chases about as often as most (33%)1/2
typical manager patience1/2
How much to trust this read
73/100
229 batters faced this season — a solid track record25/25
current pitch-quality ratings (Stuff+/CSW) on file15/15
lineup not posted yet — using the team's overall profile8/20
plenty of data on this lineup (1312 plate appearances)10/10
umpire unposted — not announced yet0/10
What went into this projection
Strikes out
19%
They strike out
25%
Walks
4%
Pitch limit
82
Pitches per strikeout
4.83
Park & weather
×0.98
Manager style
typical
On a pitch cap
no
Engine
v7.3-port-1.0
Sims
40,000
Missing inputs
confirmed lineup — team-aggregate K% used · per-arm fatigue splits — league decay 0.04 used · umpire assignment/tendency — neutral (no free feed)
Input
Reading
Source
His manager
How fast he pulls starters
neutral
What that means tonight
typical manager patience
Anything blocking a big night?
✕ he hasn't been allowed past ~82 pitches lately, so his night ends early
Last 5 starts
Date
K
Pitches
IP
BF
FB velo
2-strike whiff
2026-07-22
4
83
5.2
26
92.3
18%
2026-07-17
3
65
6.0
21
91.9
<1%
2026-07-08
4
81
7.0
25
93.3
11%
2026-07-03
6
92
7.2
28
93.3
36%
▸Key — what do all these terms mean?
Big night (8+ K)
The chance this pitcher strikes out 8 or more — a genuinely dominant start. This is what the board is ranked by, tilted a little by the form meter. green = strong chance tonightyellow = borderlinered = low chance
✕ next to a name
Early-hook risk: something caps his night — a pitch limit, a quick manager, or an injury-return leash — so the monster strikeout night is blocked. Tap the row for the reason.
Projection
Our single best guess for tonight's strikeouts: the average of all 40,000 simulated starts, adjusted by how accurate our numbers have actually been this season.
Ceiling (top 10%)
His 90th-percentile night: one start in ten reaches this many strikeouts or more. The max-out number.
Tonight's form (0–10)
How good his stuff looks coming into tonight, from observable signs only: last-start velocity vs his norm, recent two-strike whiffs, rest days, how often the other lineup chases, and how long his manager lets him work. 5 is neutral; 7+ is rare (a couple per night across the league) and means the sim leans toward his best-stuff version. Hover or tap the bar for the ingredients.
18/20
Night-to-night swinghis nights typically land within ±2.1 strikeouts of 44/15
Blind spots in the data3 named missing inputs; lineup not confirmed14/20
Does history agree?the reality check barely moved this read — a good sign2/10
Hard limits tonighta hard limit rules out the monster night6/10
⚠ about 1 night in 3 like this ends with 3 strikeouts or fewer
⚠ the lineup isn't posted yet — check back once it is; that's the biggest thing that could change this read
workload-anchored: mean 65% / max 35% of last-5 pitch counts + 3, clamped [84, 104] · self-review trim -6
9m ago
Pitcher k pctseason overall (no lineup sides)
19%
MLB Stats API season + vl/vr splits
9m ago
Regime chasethis lineup chases about as often as most (33%)
100%
regime component
never
Regime leashtypical manager patience
1
regime component
never
Regime restfully rested (6 days)
1
regime component
never
Regime velocityfastball -0.6 mph slower than his season norm — injury-risk flag
0.0 mph
regime component
never
Regime whiff trendfinishing fewer hitters off with two strikes than usual (-9.6%)
0
regime component
never
Stuff plus
91.76
FanGraphs Stuff+
9m ago
Tto decay
0.04
league default (M6)
never
Weather
90.2°F, wind 10.0 mph
Open-Meteo forecast at first pitch
8m ago
2026-06-27
3
87
6.1
23
92.7
17%
Tail
The shape of his upside. low ceiling = little room above his typical night; normal upside = typical spread; big upside = real blow-up-the-box-score potential; second gear = when his best stuff shows up, the night jumps a whole tier.
Confidence (0–100)
How much the model trusts its own read — it drops when inputs are missing, the lineup isn't posted yet, or the pitcher's sample is thin. Under ~55 means treat the read loosely.
Big night blocked
Something concrete rules out the monster night no matter how good his stuff is — a pitch limit, a manager who pulls starters early, too many walks, or a lopsided matchup. The reason is on the badge.
Chance to clear the line
Once a line is posted, we show the plain chance he finishes above it — “6.5 line · 71% chance to clear it” means 71 of 100 simulated starts had 7 or more Ks. It's a fact from the simulation, not a pick: we never tell you to bet the over or the under.You decide.
Strikeout ladder
The chance he reaches each level, level by level — 4+ Ks, 5+, 6+, all the way up. Tap it open on any pitcher to see the whole staircase.
Lineup badge
lineup ✓ = the official card is posted and the sim used the actual nine hitters. no lineup= using the team's overall strikeout profile until the card drops (usually 2–4 hours before first pitch).
Arsenal matchup
Whether his best swing-and-miss pitch attacks a lineup that already whiffs a lot. A real out-pitch versus chase-happy bats nudges the projection up; a flat arsenal against contact hitters nudges it down.
Recent form
A gentle shade on the rate when his velocity or two-strike whiffs are trending away from his season norm — so an arm whose stuff is fading projects lower before the averages catch up.
Calibrated
The probabilities are re-mapped through a backtest of thousands of past starts, so “40%” means what it actually did historically — not just what the raw sim guessed. See the Results page for the curve.
Risk index (0–100)
How the night can go wrong, scored from six named ingredients: the chance of a dud (3 K or fewer), the early-exit chance, night-to-night swing, blind spots in the data, whether history agrees with the model, and any hard limits tonight. Low / moderate / elevated / high. High big-night % with low risk is the read you want; high % with high risk is a trap.
Scenarios
The three ways tonight actually plays out — his best stuff shows up, an ordinary night, or a rough early exit — each with its probability and typical strikeout total.
Correlated
You have lines on both starters in the same game. One game script — a blowout, rain, a bullpen day — can sink both at once. Not a prohibition, just exposure you should see.
Missing inputs
Data the model wanted but couldn't get tonight (named exactly). The sim used neutral defaults for those pieces and confidence took a haircut — nothing is ever made up.