Kenny Serwa’s 90MPH Knuckleball Is Baseball’s Strangest New Threat

0
Image: ATL Braves Country

Most knuckleballs crawl to the plate like Sunday traffic. Kenny Serwa’s screams past hitters at 89 mph while dancing like a caffeinated butterfly. This isn’t your grandfather’s junk pitch—it’s a physics-breaking weapon that turned a struggling pitcher into baseball’s hottest commodity overnight. One viral video changed everything. Now the Detroit Tigers are betting big on a pitch that shouldn’t exist.

8. The ‘Yoshi’ Pitch: His Secret Weapon

Image By Waldo Jaquith on Flickr Originally posted to Flickr as Wakefield Throws a Knuckleball CC BY SA 20 httpscommonswikimediaorgwindexphpcurid=2088299

The ‘Yoshi’ is Serwa’s knuckleball changeup—5 to 10 mph slower than his main offering. While Wakefield went hands-free at 59 mph with his slower knuckleball, Serwa’s ‘Yoshi’ still hits the high 70s. Hitters expecting high heat suddenly face a fluttering butterfly that wrecks their timing.

This speed gap creates chaos in the batter’s box. It’s deception on top of deception, making his primary knuckleball even deadlier.

7. Tread Athletics: Where Baseball Magic Happens

Image treadathleticscom

Tread Athletics represents baseball’s high-tech future. Motion capture labs, high-speed cameras, and force plates create custom pitcher development plans.

This data-driven approach transformed Serwa from a struggling independent leaguer to a viral sensation. It’s where old-school baseball meets cutting-edge science.

6. The Physics-Breaking 90 MPH Knuckleball

Image © David Butler II Imagn Images

Traditional knuckleballs float around 60-70 mph, banking on weirdness over power. Serwa’s pitch routinely hits 86-88 mph, peaking at 89. Only three knuckleballs reached 84 mph in MLB’s tracking era—Serwa’s hit 89.

This isn’t just rare—it’s practically impossible. Getting that speed while keeping zero spin takes surgical precision. Most pitchers can’t even dream of pulling this off.

5. From College Washout to Baseball Unicorn

© MEEGAN M REIDKITSAP SUN USA TODAY NETWORK via Imagn Images

You know that friend who peaked in high school? Serwa was the exact opposite. His college ERA sat over 5, looking more like a liability than a prospect.

Even in independent leagues, his numbers hovered around 4. But here’s the thing about baseball—sometimes the best stories come from guys who refuse to quit.

4. The Viral Moment That Broke Baseball Twitter

© Angelina AlcantarNews Sentinel USA TODAY NETWORK via Imagn Images

One video clip turned Kenny Serwa from nobody to an overnight sensation. At Tread Athletics, his 89 mph knuckleball broke every rule you thought you knew about baseball.

The social media explosion was instant and brutal. Scouts who’d ignored knuckleballers for years suddenly couldn’t shut up about this guy making the impossible look easy.

3. Why Serwa Matters Beyond Baseball

© Angelina AlcantarNews Sentinel USA TODAY NETWORK via Imagn Images

Serwa’s story goes way beyond stats and contracts. He shows what happens when grit meets opportunity in the social media age.

His viral moment proves that he has a talent so rare, it is baseball’s automotive unobtainium. And since his talent flips traditional scouting, it is an example that sometimes the best stories come from the guys everyone overlooked.

2. Serwa vs. Waldron: Different Knuckleball Philosophies

© Rick Scuteri Imagn Images

Matt Waldron mixes his knuckleball with mid-90s heat and low-90s sinkers. His knuckleball tops out around 84 mph, creating old-school speed contrast.

Serwa takes a different route. He uses his low-90s fastball to set up that devastating hard knuckleball. It’s like comparing a toolbox to a sniper rifle.

1. The Minor League Reality Check

Image © CHRIS LACHALLUSA TODAY NETWORK ATLANTIC GROUP USA TODAY NETWORK via Imagn Images

Within five years, Serwa will either be a major league star or a cautionary tale. His minor league journey decides which story gets written.

Fine-tuning the command while keeping that devastating speed will make or break him. Every game becomes a test to prove his impossible pitch works at the highest level.

author avatar
Spencer Rickles Writer
Spencer Rickles was born and raised in Atlanta and has followed the Braves closely for the last 25 years, going to many games every season since he was a child.