Nellys Pimentel

In March 2020, Pimentel along with other Big Four queens: Miss International 2014 Valerie Hernandez, Miss Universe 2019 first runner-up Madison Anderson, Miss World 2016 Stephanie Del Valle participated in the "We Are All Alexa” to denounce the murder of transgender Alexa Negrón Luciano who was allegedly peeping at the women’s public bathroom and was killed shortly with multiple gunshots in a grassland in Toa Baja.

Pimentel competed as Miss San Juan and was crowned Miss Earth Puerto Rico 2019 on May 5, 2019 at the Ambassador Theatre. She also won Miss Photogenic and was crowned by Miss Earth Puerto Rico 2018 Krystal Xamairy Rivera Barrios.

Her participation in Miss Earth Puerto Rico was her first beauty contest experience, although at 14 she participated and won a modeling competition, "Construyendo Sueños" (Building Dreams). As Miss Earth Puerto Rico, she went to compete at the Miss Earth 2019 pageant in Manila, Philippines.

Pimentel represented Puerto Rico in Miss Earth 2019 pageant with the coronation night held at Okada Manila, Philippines on October 26, 2019. She participated in environmental protection activities with the other 84 Miss Earth 2019 delegates which included tree planting and TV guest appearances and competed into three preliminaries: the environmental and intelligence, face and poise, and figure and form. She was announced as one of the top 20 semifinalists and then she entered the top 10 with the hashtag round, followed by the top four wit the final question and answer portion of the pageant. At the end of the event, she won the title and was crowned by her predecessor, Miss Earth 2018 Nguyễn Phương Khánh of Vietnam. She became the first-ever Puerto Rican winner of the Miss Earth crown. She called the attention of her nation's leaders "to stop taking advantage of the environment and start initiatives to protect and give back to it."

After winning Miss Earth 2019, her country Puerto Rico became the fourth country to win titles for each of the Big Four pageants.

In August 2019, Pimentel used her platform as Miss Earth Puerto Rico to call for attention to the Amazon rainforest wildfires in Brazil. She was interviewed in a TV show via Univision and she talked about her experience at the Miss Earth Puerto Rico 2019 pageant including her environmental preservation advocacy.

She walked the runway wearing a Giannina Azar creation at the Miami Fashion Week held on May 29 through June 2, 2019.

Pimentel together with Miss Earth Fire 2019 Alisa Manyonok from Belarus and Miss Earth Water 2019 Klára Vavrušková from Czech Republic joined the festivities in Christmas tree lighting ceremony at the Century Park Hotel led by Lucio Tan, the second richest billionaire from the Philippines.

She traveled to the United Arab Emirates in November 2019 for a photoshoot with a Dubai-based fashion magazine, XPEDITION Middle East and wore the creations of Amato Furne Couture, Fashion Forward Runway and Alina Anwar Couture.

Upon her arrival in Puerto Rico, she had interviews including TV guesting at the Telemundo show, Un Nuevo Día on November 11, 2019 and was interviewed regarding her victory at Miss Earth 2019 and discussed her advocacy so that the "citizens of the earth" learn how to take care the environment.

Nellys Rocio Pimentel Campusano (born April 27, 1997) is a Puerto Rican model and international beauty pageant titleholder who was crowned Miss Earth 2019. She became the first-ever Puerto Rican and Caribbean delegate to win Miss Earth, one of the Big Four international beauty pageants.