The Guyanese trio which participated at the Pan American Road Championships in Mexico all failed in their bid to clinch podium spots.
In fact, Jamual John, Brighton John and Romello Crawford were among the 29 riders which dropped out of the 132.3km U-23 road race on Sunday.
The winner was Ecuadorian Jimmy Montenegro with a time of 3: 35.45 hours , followed by Colombian, Julian Molano with 3: 35.43 and another Ecuadorian Jefferson Cepeda with 3: 35.47.
Earlier in the week, John who dominated the local circuit last year and in 2017, clocked 47:05.884 in the 33km individual time-trial.
He finished 12th of 17 riders.
Among the men under 23 years, the Chilean Diego Ferreyra won with a time of 41:10.375 minutes. The silver and bronze medals were for the Ecuadorian Alexis Benjamín Quinteros and the Honduran Luis Enrique López.
John bested riders from Paraguay, Aruba (two), Argentina and Panama.
