Houston Open

The longer of Memorial Park's two par 5s and the primary birdie opportunity on the back nine. Long hitters who find the fairway can reach in two, but the green is protected by a deep bunker complex on the right. Where contenders separate from the field on Sunday.

A 475-yard par 4 with a demanding approach to an elevated green. Water lurks left and the green slopes away from the player. Sunday leaders face this with the tournament on the line. Par is a good score. Birdie requires a perfect approach from 175 yards out.

The longest par 3 on the course and one of the most demanding on Tour. At 230 yards, it requires a long iron or hybrid into a green with serious fall-off on the right. The wind off Buffalo Bayou changes everything here.

A dogleg left that demands a draw off the tee to hold the fairway. The approach plays slightly uphill to a narrow green. Setting the tone for the back nine starts here. Bogey here with a good number on 15 is the trade most players accept.

The hardest par 4 on the front nine. A long approach into a shallow green with thick Bermuda rough guarding both sides. This is where the scoring average tells you everything about the week's difficulty.