At the 2015 Mediterranean Beach Games, held in Pescara in the summer, Verani won his first gold medal in the 5 kilometer open water swim with a time of 56 minutes and 8.2 seconds.

[6] Later in the World Series, at leg number six held at Lake Mégantic in Canada in August, he finished behind Kristóf Rasovszky of Hungary in the 10 kilometre swim with a time of 2:06:48.10 to win the silver medal.

[8][9][10] Leading up to the 2022 World Aquatics Championships, Verani gained competition experience at the first leg of the 2022 FINA Marathon Swim World Series, held in Setúbal, Portugal at Albarquel in May, placing fifth in the 10 kilometre swim with a time of 1 hour, 53 minutes, and 59.20 seconds.

[21] The following day, he won a gold medal as part of the 4×1500 metre team relay, helping finish in a time of 1:07:51.74.

[29] In November, he won a bronze medal in the 4×1500 metre mixed open water relay at the fifth and final leg of the World Series, held in Eilat, Israel, helping achieve a finish in 1:06:37.00.

[31] Based on his results in his individual events for the whole World Series, Verani earned a total of 1500 points, tying Nicholas Sloman of Australia for sixth in terms of overall highest-scoring male competitors.