Marcus "Iron Core" Delgado
Marcus Delgado is a former amateur MMA fighter turned fitness coach and gear expert. With a background in sports science, he focuses on how strength, conditioning, and recovery shape a martial artist’s performance. Marcus has tested and reviewed hundreds of gloves, pads, apparel, and training equipment, giving honest, practical advice to fighters and enthusiasts. He believes proper training gear and intelligent programming are just as vital as technique. Through his work, Marcus helps practitioners build stronger bodies, avoid injuries, and choose equipment that enhances their training experience, whether they train in a gym, dojo, or at home.
Articles by
The Real Difference Between Competition Judo Gis and Everyday Club Gis
A judogi can feel fine for regular class, then suddenly feel wrong the day shiai rules start mattering. Sleeves seem shorter. The skirt rides differently. Grips…
Creatine for BJJ and Judo: Does 3 to 5 Grams a Day Help Without Ruining Your Weight Cut
Two approaches show up in combat gyms every week. One athlete takes creatine monohydrate year-round, stays strong in hard rounds, and accepts a little extra sca…
Dollamur Flexi-Roll Home Mat Review: Safe Solo Grappling Drills in Small Spaces
Most of us have trained hip escapes and technical stand-ups between a couch and a coffee table at some point. Space is tight, neighbors are a factor, and the fl…
How do you keep improving your striking, wrestling, and jiu-jitsu without blowing up your knees or your schedule? Most of us juggle work, family, and a few hard…
Moving Zen by C. W. Nicol: A Karate Journey with Lessons for Consistency
Ever find your training drifting - good for two weeks, then life piles up and you skip, and suddenly a month is gone? I have watched motivated students slide of…
Shin Conditioning That Works Without Chronic Pain
The first time a dense bag bites back, it is not your courage that fails. It is biology reminding you that bone, fascia, and the periosteum adapt on timelines y…
Meditations on Violence by Rory Miller: A Pragmatic Review for Self-Defense Students
How do you bridge the gap between crisp pad rounds in the gym and the blunt, messy reality of a sudden shove near a doorway or the dead space of a parking lot?…
Stop Gear Bag Odor: Ventilated Packs, Drying Inserts, and Hygiene Routines
Crack a gym bag right after hard rounds and the air hits back. Heat, wet foam, zero breeze. That pocket of weather is why gear starts to rot. You are not fighti…
Skin Safety for Grapplers: Preventing Ringworm, Staph, and Mat Burn
I learned early in my amateur MMA days that your skin is part of your armor. You can have sharp takedowns and a strong guard, but if your skin breaks down, your…
The Science of Hand Wraps: Length, Material, and Wrapping Methods for Safer Striking
The Science of Hand Wraps: length, material, and methods that protect your shots The first time you clip the top edge of a heavy bag bare-knuckled, you understa…
How to Fit and Maintain Grappling Ear Guards to Prevent Cauliflower Ear
Tape buys you one round. Grappling ear guards buy you a season. If your training includes hard collar ties, head snaps, or pressure passing against frames, you…