The phrase "a rigorous schedule of" is correct and usable in written English.
It can be used when describing a detailed and demanding timetable or plan, often in contexts like education, training, or project management.
Example: "The students must adhere to a rigorous schedule of classes and assignments to ensure they meet their academic goals."
Alternatives: "a strict timetable of" or "a demanding program of".
He maintained a rigorous schedule of performances, averaging up to 200 shows annually, often on Caribbean cruise ships, until last year, when ill-health forced him to retire.
IT'S not every young actor who, free of a rigorous schedule of interviews, takes his father and sister along for an evening on the town.
After breakfast, we had swimming lessons in the freezing lake, rumored to be populated by snapping turtles, followed by a rigorous schedule of those other popular Jewish sports: sailing, windsurfing, horseback-riding, and archery.
Even Marlborough Galleries, perhaps the most multinational of art galleries, with outposts in New York and Boca Raton, Fla., as well as London, Madrid, Liechtenstein, Monaco and Santiago, Chile, routinely participates in a rigorous schedule of fairs, including those in Basel, Paris and Cologne, Germany.
City Ballet, with a rigorous schedule of 26 weeks of performances, a repertory of about 100 ballets and at least two new ballets each season, is a very different place from the respected but less prolific Royal Danish Ballet, Mr. Hubbe's previous home.
It's a rigorous schedule of eat, sleep, train.
In the gaps among it all, she raises a teenage daughter, who has an equally rigorous schedule of field hockey practice, a part-time job at McDonald's, and summer classes at the Fashion Institute of Technology in Manhattan.
She kept a rigorous schedule advocating on behalf of seniors, grandparents and caregivers.
Don't underestimate the power of a rigorous schedule.
Testud, the first of the seeded women to fall, was admittedly flat and fatigued from a rigorous schedule.
