If you do the maths, that's more than 384 hours spent watching one film.
Mind you, he's not just spurred on by his love of Robert Downey Jr and co; Alanis, 30, is also on a mission to break the current Guinness World Record for the most number of times someone has watched not only Avengers: Endgame, but also any film ever.
According to a tweet from Guinness World Records, the current record for the 'most cinema productions attended - same film' is at 103 times, a feat that was set by Anthony Mitchell from North Carolina.
Here he is:
That means Alanis, from Riverview, Florida, may already be a record breaker.
Speaking to Cnet, he said: "I wasn't planning to try and break [the world record] to begin with. But I had watched it every day since it came out for two weeks, and just like the movie shattered records, I decided to do it as well."
He continued: "I go twice on weekdays, and on Saturday and Sunday four to five times, which is the most I can because of the movie being three hours and two minutes long."
Alanis admitted that while he's also seen 2014's Captain America: Winter Soldier countless times at home, he probably wouldn't try quite so many views with another movie - despite the fact he can handle the extreme repetition.
"Can't be sick of it," he said.
"I do recite [the lines] in my mind, and sometimes out loud when there's no one sitting next to me."
He added: "My friends and family have been very supportive. My parents and younger sister came with me when I reached 100 views."
Alanis, who works in his family's construction business, said he might not even stop here.
"I might reach 200, but who knows," he said.
Alanis has sent details of his endeavours to the Guinness World Book of Records, but is yet to hear back.
In the meantime, you can check out his progress on Twitter, where he regularly tweets photos with cinema staff and his ticket stubs.Featured Image Credit: Agustin Alanis/Twitter