Today's matchup
Today it's Houston Astros for Jonah, away. He shows up on 12 boards — walks (37.4/100), rbis (32.3/100), runs (25.5/100), total bases (24.1/100). We've got him at 0.3 on the walks board. The model doesn't love the spot — the numbers are below. Open any board row for the full breakdown of what's driving it.
He's in a cold stretch
Jonah is 1-for-31 (.032) across his last 10 games, down from .214 on the season. Slumps this size are mostly noise at this sample — 31 at-bats is a fortnight, not a trend — and the model treats it that way, discounting the cold run rather than writing him off. If the matchup underneath is good, he'll still grade well here. That's a feature, and sometimes it's wrong.
What kind of hitter he is
Jonah has 11 home runs and 26 extra-base hits in 266 at-bats this season. That profile is why he grades better on the total-bases and home-run boards than his batting average alone would suggest — those boards reward damage, not just contact. Park and weather matter more for a hitter like him too, and both feed the score.
He bats from both sides
Jonah is a switch-hitter, which changes how the model reads every one of his matchups. Most hitters carry a real platoon penalty — a lefty bat facing a good lefty arm is a materially worse spot, and the score drops accordingly. Jonah takes the favourable side almost every night, so he doesn't collect that penalty. What moves his number instead is the quality of the arm rather than its handedness, and how the two sides of his own swing actually compare, which is rarely as balanced as the switch-hitter label suggests.
Floor and ceiling
Jonah has recorded at least one hit in 44 of 77 games he's batted in — 57% — with 11 multi-hit games among them. That's a boom-or-bust profile. He'll carry a game outright and then go quiet for three, so his hits-board score tends to sit below hitters with worse power and better contact.
Home and away
Jonah is hitting .237 at home (31-for-131) and .193 on the road (26-for-135) across the season. There's not much in it, which is the normal case. Home-road splits get talked about far more than they hold up.
How our calls on Jonah have graded
In the 8 games where we ranked Jonah a top-20 hitter matchup, he recorded a hit 5 times — 63%. That's a thin sample and we'd treat it as such. Every one of those calls was graded against the real box score, misses included.
Where he lands across our boards
Jonah was scored on 12 boards in that matchup, and the spread is the interesting part: walks graded 37.4/100 while stolen bases came in at 2.2/100. Same player, same game, same opposing arm — different questions. A spread that wide usually means the matchup favours one kind of outcome over another, and it's the clearest argument for reading the board that matches what you actually care about.
How the model reads him
Jonah's score rates the spot in front of him, not the name on the jersey. It weighs his rates against the kind of arm he's facing — handedness matters a lot — set against what that pitcher and his bullpen give up, then adjusts for expected playing time, park, weather, and recent form, normalized 0–100 across the slate. The weighting is proprietary and re-tuned weekly; the grading is public, and that's the half that proves anything.
What we'd flag
Books don't price every player — coverage tops out around 87% even for confirmed starters, so "no line" here usually means no book posted one rather than a gap in our data. Lineups change late, and an afternoon projection can be stale by first pitch. And the model is tuned across hundreds of graded outcomes, so one game tells you nothing about whether it's working.