|Date of birth||October 3, 1981|
|Place of birth||Montreal, Canada|
|Height||1.80 m (5 ft 11 in)|
|2002||Kansas City Wizards||0||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 17 February 2008.
‡ National team caps and goals correct as of 17 February 2008
Mayard began his professional career in 2000 with the Montreal Impact of the USL A-League where he had an impressive rookie campaign, recording 4 goals and 2 assists in only 13 games. After having an impressive campaign with the Impact he signed for Dallas Burn of the Major League Soccer. He split the 2002 season between the Dallas Burn and Kansas City Wizards playing only three matches with Dallas. Mayard returned to the A-League to sign with the Toronto Lynx his signing was announced in a press conference on April 30, 2003. He made his debut for the club on May 3, 2003 against Pittsburgh Riverhounds.
He re-signed with Toronto for the 2004 season his signing was announced on April 7, 2004. Throughout the 2004 season the Lynx failed to acquire a playoff berth. Mayard returned for his third stint with the organization on April 19, 2005. On June 21, 2005 Mayard was traded to the Vancouver Whitecaps in exchange for Said Ali. With the Caps he helped the team make the playoffs reaching the semi-finals but losing to Richmond Kickers in a penalty shootout.
In 2006, he went abroad to Norway and signed with Pors Grenland in the Norwegian First Division playing 26 games and scoring 4 goals. In 2007, he moved to league rivals Notodden FK, and appeared in 14 matches.
Although he is a Canadian citizen, due to his Haitian heritage he was able to compete for the Haiti national football team in their quest to qualify for the 2002 World Cup, making his debut for Haiti against Honduras. He also helped the team qualify for the 2007 CONCACAF Gold Cup. He did not however make their Gold Cup squad.
- "Impact 2000 - Return to the outdoor game". Retrieved 2015-05-04.
- "DALLAS BURN 2001 ROSTER". www.canoe.ca. Retrieved 2015-05-04.
- "Josue Mayard". MLSsoccer.com. Retrieved 2015-05-04.
- Glover, Robin. "April 30, 2003 Toronto Lynx Media Conference". www.rocketrobinsoccerintoronto.com. Retrieved 2015-05-04.
- Nutt, Dave. "May 3, 2003 Toronto Lynx vs Pittsburgh Riverhounds (from Toronto Lynx)". www.rocketrobinsoccerintoronto.com. Retrieved 2015-05-04.
- Glover, Robin. "April 7th, 2004 Lynx press conference by Rocket Robin". www.rocketrobinsoccerintoronto.com. Retrieved 2015-05-04.
- Glover, Robin. "April 19th, 2005 Toronto Lynx press conference (by Rocket Robin)". www.rocketrobinsoccerintoronto.com. Retrieved 2015-05-04.
- Nutt, Dave. "June 21, 2005 USL Toronto Lynx upcoming week (from Lynx media release)". www.rocketrobinsoccerintoronto.com. Retrieved 2015-05-04.
- "Google Translate". translate.google.ca. Retrieved 2015-05-04.
- FIFA World Cup qualifying games – FIFA.com
- Josué Mayard at National-Football-Teams.com