Heather Watson and her doubles partner fall foul of the third seeded Italian duo.
Watson and Boulter had cruised through the earlier Olympic matches at Roland Garros, despite the odds being against them.
They beat the Germans Angelique Kerber and Laura Siegemund in straight sets, 6-2 6-3, on Tuesday, 30 July.
They reinforced their dominance with another straight sets victory over the sixth seeded Brazilian duo of Beatrice Maia and Luisa Stefani, winning 6-3 6-4, on 31 July.
But the third seeded Italians, Sara Errani and Jasmine Paolini, undid this progress in little over an hour, winning 6-3, 6-1.
Yesterday marked the end of an era for Andy Murray.
The two-time Olympic singles champion lost alongside Dan Evans in the quarter-finals in Paris.
There were tears as he was given a huge send-off by the crowd at Roland Garros.
Temporary traffic lights removed from key St Peter Port route sooner than expected
New car for Guernsey's Meals on Wheels fleet
Major power cut switches off most of Alderney
Perfect evening for Guernsey's 2026 Air Display
The Red Arrows pull out of performing over Guernsey
Guernsey's Ladies' Pool reopens after pollution incident
Passengers at Guernsey Airport told to expect some flight disruption
Guernsey flights impacted by UK air traffic control issue
