MLB DFS

MLB daily fantasy is the most beatable of the big DFS sports, and it's also the one most people play backwards. Baseball is noisy — a great hitter goes 0-for-4 all the time — so it's tempting to treat a slate like a coin flip and just pick names you like. But the noise is exactly the point. It means the edges are structural: how runs cluster, how you spend your salary, which pitchers are actually safe. Get the structure right and you don't need to be a fortune teller. That's what this guide is about — the stuff that actually moves your results, minus the hype.

What MLB DFS actually is

Daily fantasy baseball is a one-day game. You're handed a salary cap and a roster to fill for a single slate of games, and you score points on what those players do that night — no season-long commitment, no waiver wire. On DraftKings Classic, the standard format, you get $50,000 to roster 2 pitchers, a catcher, first base, second base, third base, shortstop, and three outfielders. Everyone works under the same cap, so the whole game is a puzzle: fit the most projected production under $50K, and beat the lineups other people built.

The slate matters as much as the players. A 12-game main slate plays completely differently from a two-game afternoon slate — more teams to stack, more ways to be different, more room to be wrong. Most of the strategy below assumes a full main slate, and we'll flag where small slates change the math.

How the scoring works — and why it's bursty

You can't build a lineup well until you know what pays. On DraftKings, hitters score:

• Single +3 · Double +5 · Triple +8 · Home run +10
• Run +2 · RBI +2 · Walk +2 · Hit-by-pitch +2 · Stolen base +5

Pitchers score +2.25 per inning, +2 per strikeout, +4 for a win, and lose 2 for an earned run and 0.6 for each hit or walk allowed. Notice the shape of it. A home run is worth 10 on its own — but it almost never comes alone. The batter gets +10 for the blast and +2 for the run he scores; if there were runners on, they each get +2 for their runs and the hitter gets +2 per RBI. One swing can pay four or five players at once. That's the whole reason baseball scoring is bursty: production doesn't drip in evenly, it arrives in big innings. And big innings belong to one team's lineup at a time — which is the setup for the single most important idea in MLB DFS.

Stacking: the one thing that separates baseball

Stacking means rostering a run of hitters from the same team — typically four or five consecutive spots in the batting order — so that when that offense erupts, your lineup catches the whole inning instead of a sliver of it. Every DFS sport has some correlation, but baseball is in a class of its own, because the scoring literally pays multiple players for the same event. A three-run homer from the cleanup hitter with the 2 and 3 hitters aboard can drop 20-plus points across three of your roster spots on one pitch.

This is why a lineup of nine "good individual plays" usually loses to a lineup built around a stack. The individually-optimal roster is diversified by accident, and diversification is the enemy of upside in a game where the winners caught a five-run inning. When we backtested the actual highest-scoring lineups over real slates, the pattern was clear: the ceiling nights were the ones where a team hung a crooked number and someone had four of those bats. Stack the teams projected to score, avoid the opposing starter, and let the correlation do the work.

A caveat we hold to honestly: stacking is a variance play, not a free lunch. On a median night a spread-out lineup often scores more; the stack wins by having a much fatter right tail. That's perfect for tournaments and wrong for cash — which brings us to the fork every slate forces.

Cash games vs tournaments

These are two different games wearing the same jersey, and playing them the same way is the most common way people bleed money.

Cash games — 50/50s, double-ups, head-to-heads — pay roughly the top half of the field the same amount. You don't need to win; you need to beat the median. So the goal is a high floor: confirmed everyday players in good spots, safe pitching, and only light stacking. Boring is good. You're trying to be reliably above average, not spectacular.

Tournaments (GPPs) are top-heavy — a tiny fraction of entries win most of the prize pool. Beating the median is worthless here; you need a ceiling that beats thousands of people. That means committing to stacks, taking some lower-owned (contrarian) players so your lineup isn't a copy of everyone else's, and — if you're entering more than one lineup — spreading your exposure so a single bust doesn't sink your whole set. The mindset flips from "what's safe" to "what's my path to a huge night."

Pitching is where you spend

Hitters are volatile; starting pitchers are the closest thing to predictable on the slate. Strikeouts pay two points each and a strong arm can rack up seven or eight, innings compound the score, and a good starter controls his own floor in a way no single hitter can. That's why winning lineups tend to spend around a third of the cap on their two arms — you pay up for the safety and the ceiling, then find value in the bats.

One rule almost never worth breaking: don't roster two pitchers from the same game. They're pulling in opposite directions — every strikeout one throws is an out that keeps the other from a win, every run one gives up helps the other. It caps your own upside. Our optimizer enforces this automatically, because in a full-season backtest the best real lineups almost never did it.

Salary, and the only value stat that matters

With a hard cap, every dollar you spend on one player is a dollar you can't spend elsewhere, so the question is never "is this guy good?" — it's "is he good for his price?" The shorthand for that is value: projected points per $1,000 of salary. A $4,000 hitter projected for 9 points (2.25 value) can be a better roster piece than a $6,000 hitter projected for 11 (1.83), because he frees up $2,000 to pay up at pitcher or complete a stack.

The trap is chasing value for its own sake. Cheap value is often cheap because the player is a question mark — a platoon bat, an unconfirmed lineup, a call-up. Value gets you into the range; the matchup and the role decide whether it's real. Our Fantasy Points board shows the projection, the salary, and the value for every player, so you can sort for the spots where a good matchup and a good price actually line up.

Where our numbers come from

Every projection here is the output of one model that scores each hitter and pitcher from the matchup in front of them — the opposing arm and bullpen, handedness splits, ballpark, weather, batting order, and expected playing time — and then rolls those up into projected DraftKings points. It's the same engine across the whole site, tuned every week against what actually happened.

Here's the part that matters, and the part almost no DFS tool will show you: we grade our projections against real results, in public. Every number is scored against the box score, the record locks at first pitch so nothing gets quietly rewritten, and the full archive rolls back day by day. Most sites ask you to trust their projections; we'd rather you check ours. If you want the whole methodology and the season track record, it's laid out on how MatchWiz works.

Building lineups without the grind

You can do all of this by hand — sort for value, pick your stack, pay up for pitching, check the cap. Or you can let the math do the tedious part. Our free MLB lineup optimizer builds cap-legal DraftKings lineups that maximize our projected points, with the constraints that actually matter baked in: team stacking, two arms from different games, player locks and excludes, and exposure limits across a set of lineups. There are two ways to use it — a build-your-own mode where you tap players in and watch the salary cap fill, then have it complete the lineup optimally around your core; and an auto-generate mode with one-click Cash and Tournament presets. Everything exports to a DraftKings CSV for bulk upload.

And for the days you just want the read, the Plays of the Day surface the handful of spots where our model most disagrees with the market — the same graded, honest signal, one tap away.

The mistakes that quietly cost you

• Playing cash and tournaments the same way. The single most expensive habit. A safe cash lineup has almost no chance to win a big GPP, and a boom-or-bust GPP lineup will lose your cash games. Build them differently, on purpose.
• Ignoring the batting order. A great hitter batting eighth gets fewer plate appearances and fewer runners in front of him. Where a bat hits often matters more than who the bat is.
• Locking lineups before the lineups are locked. A projected everyday player who gets a surprise day off is a zero. Confirm the official lineup is posted before you lock — our tool flags who isn't confirmed yet.
• Over-stacking in cash. Correlation is upside and downside; when your five stacked bats get shut out, they all fail together. Save the heavy stacks for tournaments.
• Chasing last night's box score. The hitter who went 4-for-4 isn't a better play today because of it — today's matchup is a fresh problem. Project forward, not backward.

Start here

Pull up today's MLB DFS projections to see who's in a good spot and what they cost, build a lineup with the optimizer, and check the Plays of the Day for the model's sharpest reads. It's all free, and all graded in the open — so you can decide for yourself whether the numbers are worth trusting. That's the only pitch we'll make.