What Pros Play
irons · Titleist

631.CY Prototype irons

Who plays the Titleist 631.CY Prototype irons and at what loft and shaft.

Where to buyTour-only build, not sold new
1player uses it now
0%of 331 iron sets on record
0wins with it in the bag at the event
True Temper Dynamic Gold X7most used shaft (1 of 1)

Who plays it

Loft and shaft, per player

Spec text is as the source wrote it. Shafts matched to the catalog link to their page below.

Shaft spread

Shafts matched to the catalog.

The 631.CY family in play

No other 631.CY models are in a current bag.

Replaces

Predecessor not recorded yet. Release years and predecessors are still being added to the catalog.

Other ironss in play

Titleist on tour

Based on each player's latest bag on record. Models are matched to our catalog; bags with an unmatched head are not counted here.