DFS Glossary: Every Term Sharp Players Actually Use
Every term sharp DFS players actually use — with a real definition and (where relevant) a link to a deeper piece. Alphabetical within category so this doubles as a reference you can jump into mid-slate when someone drops a term you don't recognize.
Contest types
- Cash game
- Any DFS contest with flat payouts, typically top ~44% of entrants doubling their money at ~1.8x buy-in. 50/50s and double-ups are the canonical formats. See cash game strategy.
- GPP (Guaranteed Prize Pool)
- A tournament where the prize pool is guaranteed by the site regardless of whether the contest fills. Top-heavy payouts — first place often wins 15-25% of the pool. High-variance format; most winning DFS players skew cash-heavier than GPP-heavier.
- Overlay
- A GPP that didn't fill to capacity — the site pays the guarantee anyway, meaning every entered lineup has positive expected value from the shortfall regardless of construction quality. Announced 10-30 minutes before slate lock; sharp players enter reflexively.
- Satellite
- A contest whose prize is entry into a higher-buy-in contest rather than cash. Effectively a bankroll- leverage tool — a $5 satellite winner enters a $25 GPP for free.
- Single-entry tournament
- A GPP that limits each user to one lineup. Smaller fields, sharper opponents on average, but every entry counts equally.
- Millionaire Maker
- DraftKings' flagship NFL GPP with a $5M+ guaranteed prize pool and 200,000+ entries. Dominated by professional multi-entry portfolios.
Roster construction
- Stack
- Two or more correlated players in the same lineup — typically same team (QB + WR in NFL, top line in NHL, batting order in MLB). See stacking strategy.
- Bring-back
- A player from the opposing team of a stack — added to capture the correlated upside of a shootout script. If the stack needs a high-scoring game, the opposing offense benefited too.
- Punt
- A minimum-salary player whose projected floor is low but whose usage bump (from injury or coach's decision) creates a value spot. Used strategically to free salary for stars.
- Chalk
- The highest-owned play at a position — the obvious pick that a large percentage of the field will roster. Chalk works in cash; carries opportunity cost in GPPs.
- Captain / MVP
- The single-game DFS multiplier slot — DraftKings Showdown uses a 1.5x Captain, FanDuel Single Game uses a 2x MVP + 1.5x STAR + 1.2x PRO structure. The Captain pick is the leverage decision that decides single-game GPPs.
- FLEX / UTIL
- Position-flexible roster slots. DraftKings NFL has a FLEX (RB / WR / TE); NBA has UTIL (any position). Used to fit the best remaining player regardless of position.
Math + strategy
- Correlation
- The degree to which two players' fantasy outcomes move together. QB + WR is highly positively correlated (a QB's TD is his WR's TD); QB + opposing defense is negatively correlated.
- Monte Carlo
- A simulation technique that runs thousands of randomized outcome samples to estimate the full distribution of possible lineup scores. See Monte Carlo simulation explained.
- Ceiling / Floor
- The 90th and 10th percentile outcomes from simulation. GPP construction sorts by ceiling; cash construction sorts by floor. The gap between ceiling and floor is the honest variance measure.
- EV (Expected Value)
- The average outcome across the simulated distribution. Not the same as ceiling or floor — a high-EV lineup can have low ceiling (tight distribution) and a low-EV lineup can have high ceiling (blowout tail).
- Leverage
- Ceiling divided by projected ownership — how much differentiation a play provides per unit of expected upside. GPP construction sorts high-leverage plays first. See ownership and leverage.
- Ownership
- The percentage of the field that rosters a specific player. Site-published post-slate; projected pre-slate by DFS analysts. High ownership = "chalk" = low leverage; low ownership = "contrarian" = high leverage when the pick hits.
Workflow + discipline
- Late-swap
- Site feature allowing you to replace players in a lineup after the first game of the slate has locked, up until the specific game your player is in kicks off. See late-swap strategy.
- Exposure cap
- A portfolio-construction limit — no more than N% of your lineups can share a specific player, team, or stack. Prevents catastrophic damage from single-player failures. See exposure caps explained.
- Contest selection
- The discipline of choosing which contests to enter based on rake, field size, payout structure, and your edge — often more impactful on ROI than lineup construction quality. See contest selection.
- Bankroll
- The total capital you have available for DFS. Standard discipline: 30x nightly buy-in for cash-heavy play; 100x for GPP-heavy play. See bankroll management.
- Rake
- The percentage the site takes off the top of the prize pool. Standard DFS rake ranges from 7% to 15% depending on contest type. Rake dominates modest skill edges.
Related
- All DFS strategy guides — the organized index
- DFS for beginners — the getting-started walkthrough
- All blog posts (chronological)