A glamorous triathlete who drowned during an Ironman competition in Texas shared a photo from a swimming pool during a final training session just two days before the tragic race.

Brazilian influencer Mara Flávia, 38, shared the shot of her on the edge of a pool on Thursday — two days before she vanished during an open-water swim in The Woodlands Saturday morning.

“Just another day at work,” Flávia, 38, wrote in Portuguese alongside the pic of her wearing a matching pink swimming costume and cap.

The influencer, who had more than 60,000 followers online, chose the Robin S track “Show Me Love” for her post with the hashtags “triathlon,” “swimming” and “triathlete.”

Flávia vanished during an open-water swim in The Woodlands Saturday morning – the first of three grueling trials that competitors face during the 140-mile race.

Fire crews were told about a “lost swimmer” at around 7:30 a.m., one hour into the pro-female swim, KPRC reported.

Rescuers battled challenging visibility conditions before Flávia’s body was pulled from the water just after 9:30 a.m. 

Montgomery County Sheriffs confirmed that the victim “drowned while participating in the swim portion of the event,” according to a statement. The office said its Major Crimes unit will continue the investigation “per normal protocols.”

Shawn McDonald, a volunteer, recounted the commotion before the swimmer’s body was recovered.

The dad, who volunteered with his daughter Mila, 12, said a group of younger volunteers in a kayak raised a flag and blew their whistles, “yelling for help.”

“I heard them say she went under,” he wrote on Facebook. 

“I had Mila hand me the paddle and I started calling out to the athletes around us to stop so I could cross. I made my way over in about 30 seconds.

“When I got there and asked what happened, they all said the same thing: She went under. Right here. Right below us. The panic and fear on their faces won’t leave me for a long time.”

The volunteer recalled how one man had a “thousand-yard stare” on his face – before diving into the water in a desperate bid to find Flávia.

“I dove in immediately and began searching. After about a minute underwater, I felt her body with my foot. I surfaced, took what seemed like the deepest breath I have ever taken and went back down. She was gone.”

Boats with sonar combed the area – and McDonald was told to leave the water before the body was recovered.

“The victim was found in about 10 feet of water on the bottom of the lake,” Buck said. “The dive team accessed the victim, brought her up about 9:37 and then brought her over to the shore where she was pronounced DOS [deceased on scene],” Palmer Buck, the Woodlands fire chief, said.

It’s not known what caused the triathlete to go under the water.

Journalism grad Flávia previously worked in radio and television before pursuing a sporting career at age 28.

She previously twice won the Brazilian Grand Prix, and finished third in the Brasilia triathlon event.