What is stacking?
Deliberately rostering correlated players so their good games compound — the construction technique behind most winning tournament lineups.
Stacking in daily fantasy means rostering multiple players whose fantasy results are positively correlated, so that when one does well the others tend to as well. The classic stack is a quarterback with his own top receiver: a touchdown pass scores for both. Stacking multiplies a lineup's ceiling, which is exactly what large-field tournaments reward, at the cost of a lower, more volatile floor — making it a tournament tool rather than a cash-game one.
Tournaments are won by ceiling, not by consistency. Stacking correlated players means a single big game — a high-scoring baseball inning, a shootout in football — lifts several of your players at once, producing the extreme scores that win GPPs. A lineup of uncorrelated stars can be safe but rarely spikes high enough to beat a huge field.
Stacking cuts both ways: if the game script fizzles, several of your players disappoint together, so stacked lineups are more volatile. That's fine in tournaments and wrong for cash games, where you want stable, uncorrelated production. Good stacking also considers game environment — pace, park, total — and pairs naturally with leverage. Our optimizer builds stacks with correlation and ownership together.
What is stacking in DFS?Stacking means rostering correlated players — like a quarterback and his receiver — so their strong games happen together. It multiplies a lineup's ceiling, which is what tournaments reward.
Why does stacking win tournaments?Large-field tournaments are won by extreme high scores. Correlated players spiking together produce those ceilings, whereas a lineup of uncorrelated stars is steadier but rarely scores high enough to win.
Should I stack in cash games?Generally no. Stacking raises volatility — a lower floor with a higher ceiling. Cash games reward stable, uncorrelated production, so stacking is primarily a tournament strategy.