NEW YORK -- Tatyana McFadden is accomplishing things in wheelchair marathon racing that no athlete before has ever dreamed of, even able-bodied runners.

The 26-year-old is the only athlete in history to win all of the World Marathon Majors races -- London, Boston, Chicago, and New York City -- in the same year. She has done that two years in a row.

A victory on Sunday in the TCS New York City Marathon will give her three consecutive sweeps of the major titles, a "triple slam" as it is being dubbed.

McFadden, who was born with spina bifida and is paralyzed below the waist, spoke with FloTrack about her preparation for the race and her place in sports history.

Tatyana, can you talk a little bit about your preparation for New York and how you're feeling coming into the race?

It's been a really tough preparation. I had World Championships this year in April, and then our trials were just three weeks ago in Chicago. So the preparation and timing had to be just right for everything to kind of fall in together into pieces. It's been really quite a big year for me. 

So I'm feeling pretty good, pretty strong for this year's New York Marathon. I know it's going to be tough, like it is every year. Manuela Schar, she's very, very tough in the climbing and the descending. I knew it was going to be a close race with her, but just staying focused in the race and doing what I'm really strong at, and that's climbing, and see what happens. 

How did having these extra races with Trials and things like that impact your whole -- how does it change things for you? 

Peaking, I think that changes a lot. We had to peak around April for the London Marathon, which is our World Championship. You kind of come back down and then elevate and have to peak again for trials in Chicago. It's been really, really tough. The training's been really, really long and different training cycles to prepare for different types of races. 

London is really, really flat. Boston is not. Chicago is relatively flat, but New York is not. So it's just putting everything together. 

READ MORE: Why isn't Tatyana McFadden's status in sport bigger? 

What changes do you make in your training log to account for those differences in course style? 

Lots of tempo work for the longer distances, lots of hill climbing, and lots of work on turning and different exercises on the track for higher speed and higher volume to prepare for the sprints as well as lifting during the fall, that's our heavy time lifting. Lightweight lifting, recovery lifts during the spring until now. 

Can you sort of talk a little bit about like this three year run, where you've run every World Marathon Major race. Is it remarkable when you kind of look back on it yourself? 

It's definitely remarkable. I feel like Serena Williams or something. It's really been quite a year and really a fun journey so far. It's about pushing the sport and pushing myself and seeing how much I can do and really pushing my body. It's been absolutely incredible and so much fun. 

I'm only 26 years old, and to have this underneath my belt is just amazing, and I think it's brought so much to this sport, and the media has been so wonderful. I love every minute of it. 

How would you say you're different as an athlete now in comparison to where you were when you completed your first marathon and first slam? 

I'm definitely, I think, much better since my very first marathon. I'm definitely probably wiser strategically and knowing my competitors a little bit more, knowing the course a little bit more, knowing my own strength and weaknesses. That just comes with time and just really learning about myself and my body and what I really can do and trying to push the limits. 

So each race is always a learning curve. I'm always going to learn from something during each race because it's always going to be different. Weather's different. Competitors that are coming in sometimes are different. So it's always a great learning curve. 

When you're on a winning streak like this, obviously, hard work and training and preparation is a big part of it, but everything's really got to break right as well. There's a certain luck factor involved in not blowing tires, things like that. Can you sort of speak to how difficult it is for all those things to line up race after race after race? 

A lot does go into a race, not only training and time of preparation. Not having equipment failures is always really great and always very helpful, but just that will and that drive and the hard work. I just really do have a heart for racing and heart for this sport, and I think it shows what I'm racing, just always just really just having fun. 

I've had races -- I was on a streak where I flatted and blew tires, but I was able to change them pretty fast, or I was able to finish in the top three or top four. So it's just really getting back into the race if that happens and just remember to have fun. I'm only 26. My career is going to go on for several, several more years and I can see where everything takes me. 

What would it mean for you to win this race on Sunday a third time and complete another slam? 

It would be -- no one's ever done that in the history of marathoning. So it would be wonderful to be in the history books. It's absolutely unbelievable to be able to do this. It's a lot of runners have gotten three in a row but never four in a row or two in a row because anything can happen in a race. So it's just been-- yeah, it would be unbelievable. It would be the first time in history to keep that going. 

It's funny that you brought up Serena Williams a couple minutes ago. When people talk about the most dominant female athlete in the world, she's probably one that's uttered first, but in reality, it's probably you… 

Oh, I don't know. 

Do you see yourself being in that conversation? 

I mean, she's definitely my role model. She is a strong female character, and I've always looked up to her when I was younger because she's dominated the tennis world for years, since she started, I think, probably around like 14 years old. She's never really lost a match ever. 

If she can do it, I can do it, and that's what I really hope to bring to the public eye, to be that dominant and to have people know more about our sport and to know more about the wheelchair racers. That would be my dream. 

How many of these things do you think you can win? 

I don't know, it's tough. It gets tougher every year. So we'll see.