OXON HILL, Md. — For the first time in 52 years, two spellers were declared co-champions of the Scripps National Spelling Bee on Thursday.

Sriram Hathwar of Painted Post, New York, and Ansun Sujoe of Fort Worth, Texas, shared the title after a riveting final-round duel in which they nearly exhausted the 25 designated championship words. After they spelled a dozen words correctly in a row, they both were named champions.

Sriram entered the final round as the favorite after finishing in third place last year. Ansun just missed the semifinals last year.

They become the fourth co-champions in the bee’s 89-year history and the first since 1962.

“The competition was against the dictionary, not against each other,” Sriram said after both were showered with confetti onstage.

“I’m happy to share this trophy with him.”

Although they hoisted a single trophy together onstage, each will get one to take home, and each gets the champion’s haul of more than $33,000 in cash and prizes.

Gokul Venkatachalam of Chesterfield, Missouri, finished third, and Ashwin Veeramani of North Royalton, Ohio, was fourth.

Both champions are Indian-American. The past eight winners and 13 of the past 17 have been of Indian descent, a run that began in 1999 after Nupur Lala’s victory, which was later featured in the documentary “Spellbound.”