Adolfo Daniel Vallejo (born 28 April 2004) is a Paraguayan

tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles (tennis), doubles). Each player uses a tennis racket st ...

player. Vallejo has a career-high ATP singles ranking of world No. 187, achieved on 17 March 2025 and a doubles ranking of No. 435, achieved on 21 April 2025. He is currently the No. 1 player from Paraguay. On the ITF Junior Circuit, Vallejo had a combined junior ranking of No. 1.

Junior career

In 2021, he won the

Junior Orange Bowl The Junior Orange Bowl is a non-profit organization based in Coral Gables, Florida, that holds the Junior Orange Bowl International Youth Festival, a series of events held for the youth of South Florida South Florida, sometimes colloquially shor ...

Plantation Plantations are farms specializing in cash crops, usually mainly planting a single crop, with perhaps ancillary areas for vegetables for eating and so on. Plantations, centered on a plantation house, grow crops including cotton, cannabis, tob ...

, Florida, defeating

Bruno Kuzuhara Bruno Kuzuhara (born April 1, 2004) is an American professional tennis player. He has a career-high singles ranking of world No. 394 achieved on July 22, 2024 and a doubles ranking of No. 643 achieved on July 25, 2022. He won the 2022 Australian ...

in the final. He was the first Paraguayan player to win the tournament and only the second to reach the final after

Víctor Pecci Víctor Pecci Sr. (born October 15, 1955) is a Paraguayan former professional tennis player. He was ranked as high as world No. 9 in singles in 1980 and world No. 31 in doubles in 1984. Pecci is famous for reaching the 1979 French Open final. He ...

. In 2022, he reached the final of the

Australian Open The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...

in boys doubles, partnering with

Alex Michelsen Alex T. Michelsen (born August 25, 2004) is an American professional tennis player. He has a career-high ATP singles ranking of world No. 32, achieved on March 3, 2025 and a doubles ranking of No. 71, achieved on June 16, 2025. Junior career Mi ...

, losing in the final to

and

Coleman Wong Coleman Wong Chak-lam (; born 6 June 2004) is a Hong Kong tennis player. He has a career-high ATP singles ranking of No. 128 achieved on 30 September 2024 and a doubles ranking of No. 468 achieved on 9 September 2024. He is the highest-ranked ...

Professional career

2023: Maiden ATP Challenger doubles title

In July, he reached his first final on the Challenger Tour in Santa Fe, Argentina, losing to

Mariano Navone Mariano Navone (born 27 February 2001) is an Argentine professional tennis player. He has a career-high ATP singles ranking of world No. 29, achieved on 10 June 2024 and a doubles ranking of No. 141, achieved on 9 June 2025. Early life and backg ...

in the final. The following month, he won his first Challenger doubles title in

Lima Lima ( ; ), founded in 1535 as the Ciudad de los Reyes (, Spanish for "City of Biblical Magi, Kings"), is the capital and largest city of Peru. It is located in the valleys of the Chillón River, Chillón, Rímac River, Rímac and Lurín Rive ...

, Peru, partnering with Gonzalo Bueno, defeating

Jorge Panta Jorge Brian Panta Herreros (born 22 July 1995) is a Peruvian tennis player. Panta has a career high ATP singles ranking of 485 achieved on 13 January 2020. He also has a career high ATP doubles ranking of 402 achieved on 7 March 2020. Panta ha ...

and

Ignacio Buse Ignacio Buse (born 25 March 2004) is a Peruvian tennis player. He has a career high ATP singles ranking of world No. 152, achieved on 9 June 2025 and a doubles ranking of No. 439, achieved on 16 October 2023. He is currently the No. 1 player fro ...

in the final.

2024: First singles ATP Challenger title, top 250

In March, he won his first Challenger title in São Léopoldo, Brazil, defeating

Enzo Couacaud Enzo Couacaud (; born 1 March 1995) is a French professional tennis player. He has a career high singles ranking of world No. 151, which he achieved on 17 July 2023 and a doubles ranking of world No. 188 achieved on 8 March 2021. Career 2015: ...

in the final. He became the youngest Paraguayan to win an ATP Challenger title and the fourth Paraguayan champion in ATP Challenger Tour history and first since Ramon Delgado in 2009. As a result, he reached the top 300 on 6 May 2024.

Davis Cup

Vallejo represents

Paraguay Paraguay, officially the Republic of Paraguay, is a landlocked country in South America. It is bordered by Argentina to the Argentina–Paraguay border, south and southwest, Brazil to the Brazil–Paraguay border, east and northeast, and Boli ...

at the

Davis Cup The Davis Cup is the premier international team event in men's tennis. It is organised by the International Tennis Federation (ITF) and contested annually between teams from over 150 competing countries, making it the world's largest annual ...

, where he has a win–loss record of 5–3.

ATP Challenger Tour finals

Singles: 4 (1 title, 3 runner-ups)

Doubles: 1 (1 title)

ITF World Tennis Tour finals

Singles: 4 (2 titles, 2 runner-ups)

Doubles: 7 (5 titles, 2 runner-ups)

Junior Grand Slam finals

Doubles: 1 (1 runner-up)

References

External links

* * * {{DEFAULTSORT:Vallejo, Daniel 2004 births Living people Paraguayan male tennis players 21st-century Paraguayan sportsmen Tennis players at the 2023 Pan American Games