Was named after his father's golfing hero, Tom Watson. The two were paired together in the first two rounds of The 2011 Open Championship where Lewis carded a first-round 65, becoming the first amateur in the history of The Open to shoot 65 or better.

From the same hometown and golf club as Sir Nick Faldo.

Represented Great Britain and Ireland on the winning Walker Cup team in 2011.

Won the 2009 Boys Amateur Championship at Royal St. George's by defeating Eddie Pepperell 5 and 4 in the 36-hole final.