How to build better NHL DFS stacks with Stack Finder

What it tells you

Each stack’s score is its scoring rate per 60 minutes, times expected minutes, times the chance the unit stays intact, times an opponent factor and a goalie factor. Rates blend recent games and the season and are shrunk toward a typical line or power-play rate so small samples do not dominate. Lines are detected from each team’s last three games of shift data.

The page shows the top 10 stacks, then every game with full cards: minutes per game, xGF/60, P(intact), the opponent’s 5v5 or penalty-kill chances allowed, the opposing goalie’s save percentage and start chance, how often the unit played together recently, and a DK correlation chip that is informational only.

• Line Chemistry measures correlation by pair type over eight season pairs: forward linemates around .27 to .30, forward with defenseman .07 to .10, defense partners .05 to .12.
• Those type-level numbers are stable year to year. A specific pair’s deviation from its type barely repeats (r about .05 to .12), so the tool shrinks pair values hard.
• Stack Finder pages exist for any date, with prev and next day links, so you can plan a future slate.

Step by step

1. 1

   Step 1: Open tonight’s stacks

   Start with the top 10 stacks, ranked by expected goals for tonight.

   Open Stack Finder →
2. 2

   Step 2: Check that the unit is intact

   Read P(intact) and “Together X of last N”. A unit that just formed is a bigger risk than one that has played together for weeks.

3. 3

   Step 3: Weigh opponent and goalie

   Check the opponent’s chances allowed and the goalie chip. A likely backup or a low save percentage raises the ceiling.

4. 4

   Step 4: Confirm lines and goalies

   Check line combinations and starting goalies close to lock, since lines come from recent games, not announced lineups.

   Starting goalies today →
5. 5

   Step 5: Add a correlated piece

   Use Line Chemistry to see which pair types move together. Forward linemates are the strongest; a defenseman on the same PP1 adds some correlation.

   Line Chemistry →

In category leagues

Stacking is a daily fantasy idea, but the same signal helps season-long category leagues. A line facing a weak goalie or a team that allows chances is a good tiebreaker for goals, assists, points and shots, and PP1 units are where power-play points come from. In a close start/sit call, the player on a top-ranked stack usually has the higher ceiling.

Correlation cuts both ways. Starting three linemates in a weekly category league concentrates risk; if that line has a bad night, several categories suffer together.

In points leagues

In DraftKings and FanDuel, correlation is the edge: one goal gives points to the scorer and up to two assisters, so linemates rise and fall together. Use Stack Finder to choose the line, and the DraftKings or FanDuel profiles in Who Should I Start to settle single-player swaps.

In season-long points leagues, a top PP1 stack facing a weak penalty kill is a good reason to start a borderline player that night.

Tactics that win

• Stack lines, not pairs of stars

  Forward linemates share the most fantasy points. Players from different lines on the same team correlate far less.

• Use PP1 for upside

  Power-play units score in bunches. A PP1 facing a team that takes penalties and kills poorly is a high-ceiling stack.

• Target backups

  The goalie chip shows the opposing starter’s chance to start. A likely backup boosts the whole stack.

• Plan the slate early

  Open the date page for tomorrow to plan, then recheck lines on game day.

Mistakes to avoid

• Trusting pair-level correlation

  A pair with unusually high past correlation usually regresses to its type. Use the pair type, not the pair’s own number.

• Ignoring line changes

  Lines come from the last three games. A morning skate line change can break a stack.

• Stacking against a hot starter blindly

  The goalie factor matters. Check who is confirmed before you lock.

• Overweighting chemistry lifts

  xG lifts only partly repeat between seasons. Treat them as this season’s result, not a fixed trait.

Frequently asked questions