The weather was appalling at Hoylake in 1907, but Massy had the game to combat the strong winds and torrential rain. He led, or tied for the lead, throughout and scored 76, 81, 78, and 77, for an aggregate of 312, two stokes ahead of J.H. Taylor one of the best bad-weather players of them all.

The entry for the 1907 Open was over subscribed, and a qualifying round was introduced for the first time, which Massy also won. During the championship, his wife gave birth to a daughter, and he cut short his celebrations to return to Scotland. He arrived back in North Berwick accompanied by Ben Sayers and when news spread that the Champion was arriving at 3 o'clock, a large crowd gathered at the Railway Station. A string-band in town for the summer season was hastily assembled, and an open top charabanc put at their disposal. As Massy alighted from the carriage the crowd cheered, and waved their caps in the air, as the band played 'See the Conquering Hero'. Massy and Sayers then took their seats in the vehicle which proceeded down Station Hill and east into Westgate, then a two way thoroughfare.

As part of the summer season in North Berwick many of the local golfers and visiting personalities took part in a putting competition in aid of the North Berwick Parish Church Funds. In 1908, Dorothy Campbell, the current Scottish Ladies Champion, Arnaud Massy, and Ben Sayers were among the competitors.

The tournament was played over a week on the nine-hole putting green at the Royal Hotel, now occupied by Craigleith View. Sixpence being charged per round with seven hundred rounds played, raising over £17.

Massy came close to winning another Open on 30th June 1911, when he made up four strokes on Harry Vardon to tie at Sandwich. In the playoff, however, he conceded on the 35th. He bounced back quickly, crossing the channel to win his third French Open, by seven strokes with all the top players in the field.

The following year he entered the Open at Muirfield from La Nivelle Golf Club, St Jean de Luz, when he finished in 10th place. Arnaud Massy had an outstanding record in the Open Championship, consistently finishing in the top twenty from 1902 until 1922. Among his pupils at Nivelle Golf Club, were Andre Vagliano, Pierre Maneuvrier, and Simone Thion de la Chaume. Massy was involved in the first matches between France and the United States in 1913. He wrote a book titled "Golf" which was translated into English in 1914. On 9th October 1925 he won his record fourth French Open. That winter Massy visited the USA with Archie Compston the British PGA Champion. They played a number of matches in Florida and the Southern States.