50-100 River Check

[JPolin]

50-100 Online. The three opponents in this hand are relatively new to the game, so I don't have much of a read on them. MP is severely underbankrolled for this game, if that means anything.

UTG+1 Limps, MP Limps, I raise on the button with Ks Jd, BB calls.

Flop: 2 4 6 Rainbow

Checked to me, I bet, BB calls, UTG+1 folds, MP calls.

Turn: 2 4 6 6

Checked to me, I bet, BB folds, MP calls.

River: 2 4 6 6 5

MP checks, I check.

I didn't believe that any better hand would fold, as this player would not likely fold a pair. Any ace-high wheel type draw got there on the river, either with a pair or with a straight. MP would likely have raised A10 or better preflop, so that only leaves A7, A8, or A9, which if he called the turn there is a good chance he would call the river anyway.

So my question is, is this a good check?