An open ended straight draw (OESD) is a hand missing cards on both the high and low end that will complete a straight. Understanding OESD equity and proper strategy is crucial for profitable poker play.
How Does an OESD Work?
You hold 6-7 with a 5-8-9 flop. You can make a straight with either a 4 or a 10. Eight cards complete your straight, roughly thirty-two percent equity. OESDs are strong draws worth pursuing with decent odds. On the turn, your probability improves further. OESDs improve extremely frequently. Betting depends on position and opponent tendencies. Aggressive OESD play builds pots and applies pressure. Conservative OESD play checks and calls. Optimal play balances aggression and pot building.
OESD Equity Calculations
OESD against a pair is approximately thirty-two percent equity. OESD plus flush draw is dramatically stronger. OESD plus overcards is even stronger still. Multiple draws compound dramatically. Equity improves significantly on turn. Final equity determines betting decisions. Proper pot odds analysis is essential. Implied odds matter tremendously.
OESD Aggression Patterns
Semi-bluffing OESDs is standard strategy. Betting for value with OESD is profitable. Checking OESDs sometimes works too. Position determines optimal action. Late position enables aggressive OESD play. Early position requires more caution. Aggressive opponents justify different strategies. Your stack size matters tremendously.
OESD vs Gutshot
Gutshots have four completing cards (fifteen percent equity). OESDs have eight cards (thirty-two percent equity). OESDs are nearly twice as strong fundamentally. Always prefer OESDs over gutshots. OESD drawing strategy differs significantly. Gutshots require extreme caution generally.
Key Facts
- Eight cards complete an OESD mathematically
- Approximately thirty-two percent equity against a pair
- OESDs improve roughly one-third of the time
- Position dramatically affects OESD play
- Multiple draws increase equity exponentially
Hear It at the Table
Key Takeaway
An open ended straight draw has eight outs and strong equity. Playing OESDs correctly through proper betting makes this draw highly profitable and fundamental to modern poker.
FAQ
How many outs does an OESD have? Eight outs if purely counting straight cards. Combine with flush draws or overcards for more outs. Multiple draws become incredibly strong.
Should I bet or call with an OESD? Betting builds pots and applies pressure sometimes. Calling risks opponents checking. Position determines optimal play. Stack sizes matter tremendously.
Can an OESD win immediately? Only if opponents fold to your betting. Otherwise, OESDs need improvement to win at showdown. Your aggression matters significantly.
How do I calculate OESD equity? Use poker calculators or memorize approximately thirty-two percent. Against specific hands, equity varies slightly.
