Marissa Rothenberger — born Charlie Dean Rothenberger until he began transitioning to a she at just 9 years old — is now 6’0″ tall junior and the No. 1 pitcher for Champlin Park high school girls softball, which on Friday morning defeated Bloomington-Jefferson 6-0 in the 4A Minnesota State Championship.

Minnesota Trans pitcher Marissa Rothenberger dominates AAAA State Softball Tournament for Champlin Park

Rothenberger is the ace of the team’s pitching staff and probably the best high school softball pitcher in the state of Minnesota. On Friday, the towering 17-year-old with long blonde hair pitched a complete-game shutout and held Bloomington Jefferson to just 3 hits, bringing Marissa’s 2025 pitching statistics to a rest at 94 IP, 0.74 ERA, 0.65 WHIP and .176 BAA.

And that’ll do it – Champlin Park wins the Class 4A Minnesota state softball championship, beating Bloomington Jefferson 6-0.

Marissa Rothenberger pitched a complete-game shutout and gave up only 3 hits. pic.twitter.com/4uS7aSejqS

— Amber Harding Snyder (@TheAmberHarding) June 6, 2025

This wasn’t the first big game of Rothenberger’s tournament, either Champlin Park’s coaches weren’t afraid to ride Marissa (formerly Charlie Dean) through the section and state tournament field.

See, Softball –just like baseball — is a team game. But there is one HUGE difference. Throwing underhand, even when whipping your arm up and around in a standard fastpitch motion, is much more natural on the human arm than throwing overhand, the way baseball pitchers do. Thus, unlike baseball pitchers at the high school level, there are no pitch limits for softball pitchers.

Related: High School Girls File Lawsuit vs State of MN for Allowing 6-Foot Transgender Softball Pitcher

That allowed Rothenberger to pitch five straight games for Rebels, where the biological male – turned transgender female gave up just 1 earned run in 35 total innings (and struck out 27 batters) between the section finals (best of three vs Rogers) to their state title victory on Friday over Bloomington-Jefferson, earning Rothenberger All-Tournament Team honors.

Last night, a man single-handedly carried his high school in Minnesota to a Class 4A Softball Championship.

He pitched 14 shutout innings in back-to-back games to defeat the defending state champs.

14. Shutout. Innings.

You are a shameful, sorry excuse for a man, @GovTimWalz pic.twitter.com/MGmBRPXdb7

— Riley Gaines (@Riley_Gaines_) May 30, 2025

Oh, and not listed above, Marissa also went 5-of-16 from the plate, with 2 doubles, 3 RBI and a run scored on the Rebels’ run to the 2025 AAAA Minnesota Softball State Championship.

Minnesota… what are we doing?

For those who want to dismiss this as a story, it’s important to note the science behind why males play separately from females beyond the age of elementary school. It’s because, as the National Institute of Health (NIH) points out, genetic males (XY) on average, are anywhere from 10% to 30% bigger, faster and stronger than their female (XX) counterparts.

Biological sex is a primary determinant of athletic performance because of fundamental sex differences in anatomy and physiology dictated by sex chromosomes and sex hormones. Adult men are typically stronger, more powerful, and faster than women of similar age and training status.

Thus, for athletic events and sports relying on endurance, muscle strength, speed, and power, males typically outperform females by 10%-30% depending on the requirements of the event. These sex differences in performance emerge with the onset of puberty and coincide with the increase in endogenous sex steroid hormones, in particular testosterone in males, which increases 30-fold by adulthood, but remains low in females.

National Library of Medicine – American College of Sports Medicine (NIH.gov)

In other words, Champlin Park just used a genetic advantage at one of the single most important positions to its sport, of the entire athletic world, to cheat their way to a state championship.

High school girls trying to fight back…

That’s why, a couple of weeks ago, a few brave girls teamed up with to launch a lawsuit against the MSHSL, multiple school districts and the state of Minnesota for allowing trans males (XY) to compete in sporting events designated specifically for females (XX).

Not only does it give teams with transgender athletes a significant competitive advantage, but in some sports, it’s downright dangerous. That especially includes softball, where a biological male can hit and throw much harder than what most biological females are used to. Online, the outrage is real.

🚨 BREAKING: “Marissa” Rothenberger, a biological male, just single-handedly led Champlin Park to a 6-0 shutout to win the Minnesota Girls’ State Championship.

Every single Democrat in Minnesota voted to make this insanity possible.

Sickening. pic.twitter.com/ohdgQ42onJ

— Dustin Grage (@GrageDustin) June 6, 2025

If you have ever played softball at any level, whether it be beer league slow-pitch or high-level fastpitch, you know how dangerous it can be for pitchers and third basemen when hitters connect with hard softballs hit right at them. The state of Minnesota needs to wake up and end this atrocity against sports… and against women.

Fast-forward to 2025, where Champlin Park’s 6-foot junior righty Marissa Rothenberger — born Charlie Dean (XY) — is arguably the top high school softball pitcher in the state, touting a 0.94 ERA and 0.60 WHIP on the season, powered by 71 strikeouts in 52 innings pitched. Opposing batters are hitting just .145 against Rothenburger, who’s allowed just 7 earned runs all year.

Few girls can hit a pitch from this 6 ft tall boy who is playing on a girls high school softball team in Minnesota.

Boys don't belong in girls sports. pic.twitter.com/h4jWJK1L3q

— Media Research Center (@theMRC) May 12, 2025

The Patriots have ridden their TALL ace to a 17-2 overall record on the season. As of May 15, the Star Tribune had Champlin Park ranked No. 4 in the state, in the class of 4A. That was prior to two more wins this week, a 10-0 victory over Coon Rapids and 13-1 win vs Chaska.

Rothenburger didn’t pitch in either game, but did play 2B vs Chaska, going 3-for-3 with 2 doubles, 3 RBI and 3 runs scored. Marissa’s season batting average now sits at .319. On Wednesday at 4:30 p.m. (weather permitting), Marissa Rothenburger is expected to take the rubber in Champlin Park vs Osseo, to kick off the 2025 Minnesota Class 4A Section Softball Tournament for this year’s 2-seed.

Minnesota high school softball players suing state for allowing transgender participation

But this week, three female high school softball players are fighting back against the state of Minnesota for forcing them to play against transgender softball players who are biologically male (XY).

In a lawsuit filed Tuesday, May 20 by Female Athletes United (FAU) vs Attorney General Keith Ellison + the MSHSL and three different school districts (No. 11 – Anoka/Hennepin County, 192 – Farmington and 279 – Osseo), the three girls attest that Marissa Rothenburger’s participation for Champlin Park the past two seasons is in violation of their “equal treatment and equal opportunities guaranteed by Title IX”

(Case No. 0:25-cv-2151 – Female Athletes United v. Minnesota)

As a result of the state’s discriminatory policy, males are displacing and defeating females in their own sports, violating the equal treatment and equal opportunities guaranteed by Title IX.

FAU is an organization that advocates to protect fairness, safety, and equal opportunity for women and girls in sports. FAU members include Minnesota high school softball players who have been forced to compete against a male athlete. The softball team with the male athlete recently defeated last year’s defending state champion team.

“Minnesota is failing its female athletes. The state is putting the rights of males ahead of females, telling girls their hard work may never be enough to win and that they don’t deserve fairness and safety,” said ADF Legal Counsel Suzanne Beecher. “By sacrificing protection for female athletes, Minnesota fails to offer girls equal treatment and opportunity, violating Title IX’s provisions. Our client, Female Athletes United, is right to stand up for its members by challenging the state’s discriminatory policy and advocate for true equality in sports.”

Statement from Alliance Defending Freedom (FAU)

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The rest of the FAU statement goes on to lay out the specific reasoning why these three female softball players (most importantly) do not feel safe playing against a biological male (XY). All three also noted how Rothenburgers’s participation does not allowed them to fairly compete in MSHSL events.

One of the girls quit a club team where she was competing for a spot against Rothenburger. The other two have played against Champlin Park and lost to the transgender athlete. All three expect to compete against Marissa again in this year’s high school section and state tournaments.

Common sense (and science) says…

You can read the entire statement at the FAU website. But really, nobody with common sense needs any first-hand accounts to understand why a biological male (XY) — like Marissa Rothenburger, who reportedly came out as trans at just 9 years old — should not be playing softball against biological females (XX).

Hold whatever beliefs you want, personally. But some things are just dumb and dangerous. Period. It is scientifically proven that males (XY) are naturally bigger, faster and stronger than females (XX).

Biological sex is a primary determinant of athletic performance because of fundamental sex differences in anatomy and physiology dictated by sex chromosomes and sex hormones. Adult men are typically stronger, more powerful, and faster than women of similar age and training status.

Thus, for athletic events and sports relying on endurance, muscle strength, speed, and power, males typically outperform females by 10%-30% depending on the requirements of the event. These sex differences in performance emerge with the onset of puberty and coincide with the increase in endogenous sex steroid hormones, in particular testosterone in males, which increases 30-fold by adulthood, but remains low in females.

National Library of Medicine – American College of Sports Medicine (NIH.gov)

It’s just a matter of time before Rothenburger or the next trans softball player turns on an inside pitch that launches off the bat at 85 MPH directly into the forehead of some poor 15-year-old girl playing 3rd base for the first time.

Meet "Marissa" Rothenberger, a 6-foot-tall MALE pitcher pretending to be a FEMALE, who has been dominating Girls' High School softball in Brooklyn Park, MN.

Girls only hit 12% of his pitches, and he only allowed a SINGLE hit in a recent game. Even the announcers acknowledge his… pic.twitter.com/TPjTlwFvPJ

— Libs of TikTok (@libsoftiktok) May 8, 2025

There’s a reason why many adult co-ed softball leagues do not allow females (XX) to pitch or play third base, and why women use smaller softballs than men. Because the two genders are not the same, physically, especially when you let the one with XY chromosomes hurl a deadly weapon toward those with XX chromosomes.

Not everything has to be about politics. Some things are just common sense.