He said the Facebook live video he posted of the fight attracted just under 2000 viewers, and he thought the $49.99 price-tag for the last fight was too high.
The Parker-Haumono fight is selling for $39.95 and Duco chief executive Martin Snedden conceded the promoters were up against it in trying to eliminate live streams of Parker's fights.
Duco was hoping to learn from each event what could be done to minimise the impacts of live-streaming.