# RFI (Raise First In) > Source: [RFI (Raise First In) in the Smarter.Poker Glossary](https://smarter.poker/glossary/rfi) ## Definition RFI, Short For Raise First In, Is The First Voluntary Raise When Every Player Before You Has Folded. RFI Ranges Widen As The Position Gets Later: A Player Under The Gun Opens A Tight Range, While The Button Can Open Close To Half Of All Hands Because Only The Two Blinds Remain To Act Behind. - **Category**: Preflop - **Term Code**: `rfi` - **DefinedTermSet**: [Smarter.Poker Poker Glossary](https://smarter.poker/glossary) ## Related Poker Terms - [Isolation Raise](https://smarter.poker/glossary/isolation-raise) ([Markdown](https://smarter.poker/glossary/isolation-raise.md)): An Isolation Raise Is A Raise Over One Or More Limpers, Sized To Push The Other Players Out So The Raiser Can Play Heads Up Against The Limper, Who Is Often The Weakest Player At The Table. The Usual Size Is The Standard Open Plus One Big Blind For Each Limper Already In The Pot. - [3-Bet](https://smarter.poker/glossary/3-bet) ([Markdown](https://smarter.poker/glossary/3-bet.md)): A 3-Bet Is The First Re-Raise Before The Flop, Made Over An Open Raise. The Blinds Count As The First Bet And The Open As The Second, Which Is Why The Re-Raise Is The Third. A 3-Bet Can Be Made For Value With Strong Hands Or As A Bluff With Hands That Block The Opener's Best Holdings. - [Dealer Button](https://smarter.poker/glossary/dealer-button) ([Markdown](https://smarter.poker/glossary/dealer-button.md)): The Dealer Button Is The Marker That Shows Which Player Acts Last In Each Betting Round After The Flop. It Moves One Seat To The Left After Every Hand, And The Blinds Are Posted By The Two Players To Its Left. The Button Is The Most Profitable Seat At The Table Because It Plays Every Postflop Street In Position. - [Range](https://smarter.poker/glossary/range) ([Markdown](https://smarter.poker/glossary/range.md)): A Range Is The Full Set Of Hands A Player Could Hold In A Given Spot, Based On Their Position And Every Action So Far. Strong Players Think In Ranges Rather Than Single Hands, Because Opponents Act With Many Hands In The Same Way. Reading A Range Means Narrowing It Street By Street As New Actions Arrive. ## Related Strategy Lessons - [Preflop Opening Ranges By Position](https://smarter.poker/learn/preflop-ranges-by-position) ([Markdown](https://smarter.poker/learn/preflop-ranges-by-position.md)): In 6 Max Cash At 100 Big Blinds, Opening Ranges Widen As The Seat Moves Toward The Button: In The Smarter.Poker Reference The Under The Gun Seat Opens 8.4% Of Hands By Frequency And The Button Opens 25.2%. - [UTG Opening Range In 6 Max Cash](https://smarter.poker/learn/utg-opening-range) ([Markdown](https://smarter.poker/learn/utg-opening-range.md)): In The Smarter.Poker 6 Max Cash Reference At 100 Big Blinds, The Under The Gun Seat Opens 8.4% Of All Starting Hands By Frequency And Plays 13.6% Of Them At Least Some Of The Time, With The Full Chart Below. - [Middle Position Opening Range, 6 Max](https://smarter.poker/learn/middle-position-opening-range) ([Markdown](https://smarter.poker/learn/middle-position-opening-range.md)): In The Smarter.Poker 6 Max Cash Reference At 100 Big Blinds, The Middle Position Seat Opens 10.9% Of All Starting Hands By Frequency And Plays 17.3% Of Them At Least Some Of The Time, With The Full Chart Below. - [Hijack Opening Range In 6 Max Cash](https://smarter.poker/learn/hijack-opening-range) ([Markdown](https://smarter.poker/learn/hijack-opening-range.md)): In The Smarter.Poker 6 Max Cash Reference At 100 Big Blinds, The Hijack Opens 13.2% Of All Starting Hands By Frequency And Plays 20.5% Of Them At Least Some Of The Time, With The Full Chart Below. - [Cutoff Opening Range In 6 Max Cash](https://smarter.poker/learn/cutoff-opening-range) ([Markdown](https://smarter.poker/learn/cutoff-opening-range.md)): In The Smarter.Poker 6 Max Cash Reference At 100 Big Blinds, The Cutoff Opens 16.8% Of All Starting Hands By Frequency And Plays 24.9% Of Them At Least Some Of The Time, With The Full Chart Below. - [Button Opening Range In 6 Max Cash](https://smarter.poker/learn/button-opening-range) ([Markdown](https://smarter.poker/learn/button-opening-range.md)): In The Smarter.Poker 6 Max Cash Reference At 100 Big Blinds, The Button Opens 25.2% Of All Starting Hands By Frequency And Plays 40% Of Them At Least Some Of The Time, With The Full Chart Below. - [Small Blind Opening Range, 6 Max](https://smarter.poker/learn/small-blind-opening-range) ([Markdown](https://smarter.poker/learn/small-blind-opening-range.md)): In The Smarter.Poker 6 Max Cash Reference At 100 Big Blinds, The Small Blind Opens 20.7% Of All Starting Hands By Frequency And Plays 33% Of Them At Least Some Of The Time, With The Full Chart Below. - [Opening Ranges With 20 Big Blinds](https://smarter.poker/learn/20bb-opening-ranges) ([Markdown](https://smarter.poker/learn/20bb-opening-ranges.md)): With 20 Big Blinds The Smarter.Poker Reference Opens The Button With 21.4% Of Hands By Frequency, Against 25.2% At 100 Big Blinds, And The Chart Below Shows Every Hand. - [How Rake Affects Your Win Rate](https://smarter.poker/learn/rake-and-win-rate) ([Markdown](https://smarter.poker/learn/rake-and-win-rate.md)): Rake Is The Fee A Cash Game Takes From Each Pot, And Because It Is Capped It Costs Small Pots The Most: In An Example Structure Of 5% Capped At 3 Big Blinds, A 10 Big Blind Pot Pays 0.5 Big Blinds And A 100 Big Blind Pot Pays Only 3, Which Is 3%. ## Practice On Smarter.Poker - [Preflop Charts](https://smarter.poker/hub/preflop-charts): Opening And Defending Ranges By Position. - [Preflop Range Matrix Guide](https://smarter.poker/features/preflop-charts-matrix): 169-Hand Preflop Charts Across 15BB To 100BB Stack Depths. - [GTO Training](https://smarter.poker/hub/training): Scenario Based Poker Training, Free To Play. ## Compliance & Fair Play There Is No Real-Money Gambling On Smarter.Poker: Club Chips Are Play Credits With No Cash Value, And Diamonds Are A Promotional Rewards Currency.