Kenny Elissonde, Tao Geoghegan Hart and David Lopez were also in the thick of the action on the final day in Italy as they build up towards future races.
“It was good preparation for the races coming up," continued Boswell. "Myself and Tao have Pais-Vasco with Lopez next week so it’s nice preparation for that.
"For myself, it was fun just to get back into racing. It’s been an up and down spring with illness. I’m not at 100%, but I’m at a good level of fitness. It feels nice to be competitive in a race again."
Boswell’s longer-term target remains the Tour of California, which he plans to lead.
He added: "There’s Pais-Vasco and a couple of other races in between, but I’m building up nicely towards California. Everything’s on track at the moment."