NLSH10: toptrips vs TAG

I think you played the hand fine by betting the river, although I would go for a smaller bet of about $1.50.

The reasoning behind this is that I think a TAGish player is more likely to be calling down flop and turn with a showdown value hand rather than a flushdraw, hands such as Jx and 88-TT are more likely by the river than flushdraws since most TAGs won't call 2 barrels without odds with a flushdraw. In this case he then won't bet the river anyway because he has a weak showdown value hand that gains nothing by betting, he's getting called by Ax every time and he already beats semi bluffs so may as well check back.

If his range was mostly flushdraws then a c/c would be preferable, but against a seemingly competent player betting the river small to allow him to call with any one pair hand seems preferable.