Britain opened their first ever World Series of Boxing campaign with a 4-1 win over the USA in California back in November and Selby, Joyce and Ward ensured the trick was repeated on home soil at York Hall.
Selby, Joyce and Ward beat Michael Conlan, Avery Gibson and Marko Calic respectively in London while Kaupo Arro, in for Olympic silver medallist Fred Evans who fell ill, and John Joe Nevin were also victorious.
That gave Britain a 5-0 win and maintained their unbeaten home record in the World Series of Boxing this season while also promoting them back to second in the Group B standings for the time being.
Britain's newest recruit, Estonian Arro, fought first at York Hall and was awarded victory in the second round of his middleweight clash with Jeffrey Camp after an accidental clash of heads saw the USA fighter cut.
Arro and Camp came together midway through the first round with the ringside doctor unable to stop the bleeding to the latter in the second before Nevin faced off against Daouda Sow.
Nevin, who won Olympic bantamweight silver at London 2012, troubled Sow, who claimed the same colour medal in the lightweight event at Beijing 2008, in the first two rounds and finished the fifth with a flurry for the win.
Selby then renewed his rivalry with Olympic bronze medallist Conlan, having beaten him on their last meeting in the quarter-finals of the World Championships in 2011, in the bantamweight contest.
The British fighter got the better of Conlan again to wrap up a third win for the Lionhearts and the overall victory on the night before Ward outclassed Calic in the light heavyweight bout.
Heavyweight Joyce dominated Gibson to complete a clean sweep against the USA with Britain, who have now won four of their six WSB matches this season, set to travel to the Italia Thunder next.
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