| Boys' doubles | |
|---|---|
| 2009 US Open | |
| Champions |  Márton Fucsovics  Hsieh Cheng-peng |
| Runners-up |  Julien Obry Adrien Puget |
| Score | 7–6(7–5), 5–7, [10–1] |
Niki Moser and Cedrik-Marcel Stebe were the defending champions, but they did not compete in the Juniors this year.
Márton Fucsovics and Hsieh Cheng-peng won in the finals 7–6(7–5), 5–7, [10–1] against Julien Obry and Adrien Puget.
Yuki Bhambri / Huang Liang-chi (first round)
Facundo Arguello / Agustín Velotti (semifinals)
Francis Casey Alcantara / 
Daniel Berta (first round)
Jeong Suk-young / Lim Yong-kyu (first round) Andrea Collarini / 
Nikala Scholtz (first round) Pierre-Hugues Herbert / 
Kevin Krawietz (quarterfinals)
Hiroyasu Ehara / Shuichi Sekiguchi (first round)
Arthur De Greef / Gianni Mina (first round)| Semifinals | Final | ||||||||||||
| Julien Obry Adrien Puget | 6 | 68 | [10] | ||||||||||
| WC |  Matthew Kandath Jack Sock | 4 | 7 | [5] | |||||||||
| Julien Obry Adrien Puget | 65 | 7 | [1] | ||||||||||
| Márton Fucsovics Hsieh Cheng-peng | 7 | 5 | [10] | ||||||||||
| Márton Fucsovics Hsieh Cheng-peng | 6 | 6 | |||||||||||
| 2 | Facundo Arguello Agustín Velotti | 3 | 2 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | Yuki Bhambri Huang Liang-chi | 6 | 2 | [6] | |||||||||||||||||||||||
| Evan King Denis Kudla | 3 | 6 | [10] | E King D Kudla | 4 | 6 | [9] | ||||||||||||||||||||
 Sebastian Lavie Renzo Olivo | 6 | 4 | [11] | S Lavie R Olivo | 6 | 3 | [11] | ||||||||||||||||||||
 Federico Gaio Yasutaka Uchiyama | 0 | 6 | [9] | S Lavie R Olivo | 1 | 6 | 6 | ||||||||||||||||||||
| Julien Obry Adrien Puget | 1 | 6 | [10] | J Obry A Puget | 6 | 3 | [10] | ||||||||||||||||||||
| WC | Sekou Bangoura Nathan Pasha | 6 | 4 | [1] | J Obry A Puget | 6 | 4 | [10] | |||||||||||||||||||
 Stanislav Poplavskyy Radim Urbánek | 6 | 63 | [10] | S Poplavskyy R Urbánek | 3 | 6 | [8] | ||||||||||||||||||||
| 5 | Andrea Collarini Nikala Scholtz | 4 | 7 | [7] | J Obry A Puget | 6 | 66 | [10] | |||||||||||||||||||
| 4 | Jeong Suk-young Lim Yong-kyu | 4 | 4 | WC | M Kandath J Sock | 4 | 7 | [5] | |||||||||||||||||||
| WC | Matthew Kandath Jack Sock | 6 | 6 | WC | M Kandath J Sock | 6 | 7 | ||||||||||||||||||||
 Filip Horanský Jozef Kovalík | 5 | 3 |  A El Menshawy H Fowler | 4 | 5 | ||||||||||||||||||||||
| Ahmed El Menshawy Harry Fowler | 7 | 6 | WC | M Kandath J Sock | 7 | 7 | |||||||||||||||||||||
 Mikhail Biryukov  Pavel Krainik | 6 | 2 | [3] |  S Ehrat  A Georgoudas | 67 | 5 | |||||||||||||||||||||
| Mitchell Frank Junior Ore | 1 | 6 | [10] | M Frank J Ore | 63 | 6 | [7] | ||||||||||||||||||||
| Sandro Ehrat Alexandros Georgoudas | 7 | 4 | [10] | S Ehrat A Georgoudas | 7 | 4 | [10] | ||||||||||||||||||||
| 8 | Arthur De Greef Gianni Mina | 68 | 6 | [3] | |||||||||||||||||||||||
Stefan Edberg was the defending champion but lost in the first round to Boris Becker.
Petr Korda was the defending champion but lost in the quarterfinals to Sergi Bruguera.
Lleyton Hewitt was the defending champion, but chose not to participate that year.
The 1999 Thalgo Australian Women's Hardcourts singles was the singles event of the third edition of the Thalgo Australian Women's Hardcourts; a WTA Tier III tournament held in the Gold Coast. Ai Sugiyama was the defending champion but lost in the semifinals to Patty Schnyder.
The 1999 ASB Classic doubles was the doubles event of the fourteenth edition of the ASB Classic; a WTA Tier IV tournament and the most prestigious women's tennis tournament held in New Zealand. Nana Miyagi and Tamarine Tanasugarn were the defending champions but did not compete that year.
The 1999 Nokia Cup was a WTA Tier IV tournament held in Prostějov, Czech Republic, and the only edition of the Nokia Cup. Slovak Henrieta Nagyová won in the final 7–6(7–2), 6–4 against Silvia Farina.
The 1999 Open Gaz de France singles was the singles event of the seventh edition of the Open GDF Suez; a WTA Tier II tournament held in Paris, France. Mary Pierce was the defending champion but did not compete that year.
Serena Williams defeated Steffi Graf in the final, 6–3, 3–6, 7–5 to win the women's singles tennis title at the 1999 Indian Wells Open. It was the second and last time that the two would contest a professional match.
The 1999 Direct Line International Championships singles was the singles event of the twenty-fifth edition of the Eastbourne International, a WTA Tier II tournament held in Eastbourne, England, United Kingdom and part of the European grass court season. Jana Novotná was the defending champion but retired earlier in the year.
Yevgeny Kafelnikov was the defending champion and won in the final 7–6(7–2), 7–6(7–5) against Goran Ivanišević.
Thomas Enqvist was the defending champion and won in the final 7–5, 6–4, 7–6(7–0) against Todd Martin.
The 1999 Warsaw Cup by Heros singles was the singles event of the fifth edition of the Warsaw Open; a WTA Tier IV tournament held in Warsaw, Poland. Conchita Martínez won the tournament last year when it was a Tier III event. She did not compete this year.
Roger Federer was the defending champion, but was forced to withdraw from the tournament before the semifinals because of a back injury. Following Federer's withdrawal, Stefan Edberg and Jo-Wilfried Tsonga played a one set exhibition match to make up the evening session.
The 1999 Tashkent Open doubles was the doubles event of the first edition of the Tashkent Open; a WTA Tier IV tournament and the most prestigious women's tennis tournament held in Central Asia.
Sania Mirza was the defending champion and top seed, but was stunned by Camille Pin in the second round.
Pete Sampras was the defending champion and successfully defended his title, beating Cédric Pioline 7–6(7–5), 1–6, 7–5 in the final.
Michael Chang was the defending champion.
The 1999 Sanex Trophy singles was the singles event of the first edition of the Sanex Trophy; a WTA Tier IV tournament and one of the most prestigious women's tennis tournament held in Belgium.
Jana Novotná was the defending champion, but she retired from tennis earlier in the year.
Axel Geller and Hsu Yu-hsiou were the defending champions, but both players were ineligible to participate in junior events.
