Updated, 12:30p.m. Sunday: This story has been updated to fix incorrect information that was told to The News. Mack Beggs and Madeline Rocha have not wrestled before; the story also clarifies a quote about Beggs competing against Coppell wrestlers.

ALLEN -- The winning wrestler pulled a tearful runner-up next to him on the victory stand, and they exchanged a hug after a match that never took place.

Mack Beggs, a transgender 17-year-old at Euless Trinity, won the girls 110-pound championship at Saturday's Class 6A Region II wrestling meet after a Coppell wrestler forfeited the final. Beggs, a junior, is taking testosterone while transitioning from female to male.

Madeline Rocha's forfeit came 11 days after a lawsuit was filed against the University Interscholastic League by Coppell attorney and wrestling parent Jim Baudhuin, urging the governing body to suspend Beggs because of the use of the steroid. The suit claims that allowing the wrestler to compete while using testosterone exposes other athletes to "imminent threat of bodily harm." Baudhuin's daughter is not in the same weight class as Beggs.

Pratik Khandelwal, whose daughter also wrestles for Coppell, is named as the plaintiff and is bringing the case forward on behalf of his minor daughter and "other similarly situated female wrestlers" in the state, according to the suit. Khandelwal's daughter did not wrestle Beggs because they were in different weight classes this weekend.

Khandelwal, through Baudhuin, declined to comment.

"Today was not about their students winning," said Nancy Beggs, Mack Beggs' grandmother and guardian. "Today was about bias, hatred and ignorance. (Mack Beggs and wrestlers from the Coppell team) have wrestled each other before, they know each other and they were not happy with this."

Both Beggs, who is undefeated this season, and Rocha will advance to the state championships Friday and Saturday in Cypress. The top four finishers in each weight class qualify for state.

Coppell head wrestling coach Chip Lowery and athletic director Joe McBride declined to comment.

Following UIL rules

Mack Beggs began taking testosterone treatments in October 2015, according to posts he made on social media. The three-time state qualifier identifies as male but must compete against girls because of two UIL rules. One policy states student-athletes must compete as the gender listed on their birth certificate. Another specifically prohibits boys from wrestling girls and vice versa.

The junior wants to compete against boys, Nancy Beggs said, but is willing to follow whatever the UIL rules require.

Euless Trinity coach Travis Clark said he expected the forfeit to happen but declined to comment further. Mack Beggs declined to comment through his grandmother.

The Texas Education Code and UIL rules prevent steroid use, but the code has a "safe harbor" provision that allows a student to use steroids if they are "dispensed, prescribed, delivered and administered by a medical practitioner for a valid medical purpose."

Nancy Beggs said the wrestler's medical records were sent to the UIL before the 2015-16 season and again before this season, and Mack was approved to compete.

A spokeswoman for the UIL said the organization cannot comment on specific cases but reiterated the safe-harbor provision in a statement to The News.

A pair of forfeits

Baudhuin said the Coppell coaches who forfeited had long indicated they would do so because they felt it would be unsafe for their wrestler. This was the first time Beggs and Rocha were supposed to wrestle.

Baudhuin also said his suit had nothing to do with Mack Beggs being a transgender male.

Euless Trinity's Mack Beggs (left) wrestles Grand Prairie's Kailyn Clay on Friday during the Class 6A Region II wrestling meet Friday at Allen High School. (Nathan Hunsinger / Staff Photographer)

"I respect that completely, and I think the coaches do," Baudhuin said. "All we're saying is she is taking something that gives her an unfair advantage. It's documented. It's universal that it's an unfair advantage."

Mack Beggs' first-round opponent in the regionals, Lewisville's Fatima Vaquerano, also forfeited. Lewisville coach Joe Daniel declined to comment.

These were the first opponents who have forfeited to Mack Beggs, his grandmother said.

Beggs did wrestle Grand Prairie's Kailyn Clay in the semifinal Friday night, winning via pin. Clay went on to finish fourth at regionals.

Baudhuin said he doesn't expect a ruling on the lawsuit before the end of the state meet, but he is reaching out to state legislators in hopes that they will change the education code involving steroids.

Treatments more common

It's become increasingly common for a person under 18 to undergo hormone treatment, said Diane Ehrensaft, a clinical and developmental psychologist and founding member of the Child and Adolescent Gender Center in California.

The GENECIS clinic at Children's Medical Center in Dallas administers cross-sex hormones around age 16, which is in line with industry practice, said spokesman Scott Summerall.

Testosterone is added in small increments and is increased over time, Ehrensaft said. The dosage depends on the person. This can create physical effects such as face and body hair as well as increased muscle mass. Ehrensaft said the person's physical progression after about a year depends on the person.

Ehrensaft and Joanna Harper, a transgender female athlete who has studied the intersection of athletics and the transgender community, acknowledged that a person could have a competitive advantage during a transition based on the hormones that are taken (female to male) or not suppressed (male to female), but it's not always the case because of the natural differences in strength and speed among people of the same gender.

"Not every kid I've seen who has gone on testosterone has added muscle mass," Ehrensaft said.

Critics have panned the UIL's birth certificate measure as exclusionary. Texas joined six other states as determining gender by either birth certificate or surgery and a hormone wait period, according to transathlete.com.

Last June, the UIL Legislative Council took no action on a proposal to let transgender athletes compete as the gender they identify with, leaving its current rules intact.

Related: Texas, UIL must create better policy for transgender athletes or higher court will

The Texas Association of Private and Parochial Schools, which is home to 230 schools in the state, also has a policy stating students will compete under the gender listed on their birth certificate. TAPPS only has wrestling for boys, and it specifically prohibits girls from participating.

The Southwest Preparatory Conference, which is home to 18 private schools in Texas and Oklahoma, adopted a policy last year that allows each school to make its own determination on which teams transgender students are allowed to participate, according to SPC Commissioner Bob Windham.

Twitter: @michaelflorek