Open-ended straight draw (OESD)

A straight draw with two ranks that complete it.

Definition

An open-ended straight draw is a straight draw where either of two ranks completes the straight (typically 8 outs).

Key points

  • OESDs often have ~8 outs, but some outs can be dirty.
  • OESDs can have strong semi-bluff potential when combined with overcards.
  • Turn and river odds differ; plan future streets.

Common misconceptions

Myth

OESD always has exactly 8 outs.

Reality

Some outs can be blocked or make villain stronger.

Myth

If I have an OESD I should always bet.

Reality

Line depends on position and range advantage.

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