In the second half of the 14th century, this list of deeds of arms includes
1359: Joust in London: Monday-Wednesday (three rogation days)
1388: Hastilude at Calais: including combat on Sunday
1389: Hastiludes in Paris: Monday-Wednesday
1389: Jousts at the Entrance of Queen Isabella into Paris: Tuesday-Thursday
1390: Jousts at St. Inglevert: Sundays and feast days excluded from jousting
1390: Jousts at Smithfield: Monday-Tuesday
In addition, these jousts were scheduled for Monday-Tuesday.
Earlier, David Crouch's Tournament reports:
While there seems to have been a consistent effort to avoid combat on Sunday, the 1388 hastiludes at Calais provide at least one exception.
In the biggest sample of dated tournaments that we have -- the 57 listed as forbidden by the king and his ministers in England between 1216 and 1250 -- 25 had been arranged for a Monday. In noble tournaments held in the Low Countries in the first half of the fourteenth century, Monday and Tuesday were still the days chosen for half of the recorded tournaments.