GlossaryAt the table

UTG (under the gun)

The first seat to act before the flop, just left of the big blind, so it opens the tightest range.

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What it means
UTG sits directly to the left of the big blind. Before the flop every other player acts after it. At a full table the next seats are UTG+1 and UTG+2.
How it is calculated
With everyone still to act behind, any hand UTG opens has to stand up to five or more players who may hold something strong.
Worked example
In this app's 100bb charts UTG opens about 11% of hands, against about 46% from the button.
Why it matters
Learning the tight UTG range first gives you a solid floor; every later seat opens wider from there.

Try it: Range browser

See also: Position, RFI