Regular visitors Burnley were one of the three Premier League clubs represented at Town’s final game before the latest transfer window opens.
It was the third successive John Smith’s Stadium showdown attended by a Clarets scout.
QPR and Southampton were the other top-flight clubs looking on against Bolton.
Reading, who come to Town, and Wigan Athletic, who visit Bolton, both took the opportunity to run the rule over their FA Cup third-round opponents.
Other Championship clubs with scouts present were Blackburn Rovers, Fulham, Middlesbrough and Sheffield Wednesday.
League I Coventry City were also represented.