The Spaniard, who returned to action at the US Open after a lengthy layoff due to a wrist injury sustained in April, said the demands of the schedule made it impossible for players to compete in every major event without risking burnout.
"I took more than I wanted but seeing how tight is the calendar, I don't want to have this break because of an injury," Alcaraz told reporters after beating Jaime Faria 4-6, 6-0, 6-3, 6-2 on Wednesday.
"In the future, I'm going to take some long breaks. Maybe not four months, but one month, two months, missing some tournaments, because it's impossible to play them all."
Since 2025, seven of the nine ATP Masters 1000 events have been expanded to 12 days, with only Monte Carlo and Paris retaining their traditional one-week formats.
The ATP has said players control their own schedules and it is working to encourage an appropriate number of matches during the season.
"They are adding more important tournaments. In a way they are making us play," he said.
"You can say no and decide your calendar, but there are some Masters 1000s, some Grand Slams, and we are out playing 40 weeks if we have to play every mandatory tournament that the ATP requires us to play."
Alcaraz pointed to a growing injury toll on the tour, with Jannik Sinner, Jack Draper, Holger Rune and Joao Fonseca among players who missed this year's US Open.
"We are seeing a lot of players getting injured and tired. If they don't do anything about it, we are going to see even more in the future," he added.
US Open 2026
The US Open is the fourth and final Grand Slam of the tennis season, running from August 30th to September 13th. It is a hard-court tournament held at Flushing Meadows in New York City. Follow the links below for more information!
All you need to know | Men's singles draw | Women's singles draw | Latest US Open news