[Hesse]

1. Franco Davín (1985 - Buenos Aires) 15 years 45 days

2. Tommy Ho (1988 – Rye Brook) 15 years 2 months 5 days

3. Michael Chang (1987 - US Open) 15 years 6 months 9 days

4. Jimmy Arias (1980 - Palm Harbor) 15 years 7 months 15 days

5. Aaron Kirckstein (1983 - Johhanesburg) 15 years 8 months 2 days

6. Andre Agassi (1986 - La Quinta) 15 years 9 months 26 days

7. Richard Gasquet (2002 - Monte Carlo) 15 years 9 months 27 days

8. Bjorn Borg (1972 - Madrid) 15 years 10 months 10 days

9. Mats Wilander (1980 - Bastad) 15 years 10 months 22 days

10. Rafael Nadal (2002 - Mallorca) 15 years 10 months 26 days

11. Ryan Harrison (2008 - Houston) 15 years 11 months 7 days

12. John Austin (1973 - Bretton Woods) 15 years 11 months 23 days

 

[V.H.]

:worship: How did you get this data? You have oldest as well?

 

[eldrick]

1. Tommy Ho (1988 – Rye Brook) 15 years 2 months 5 days

2. Michael Chang (1987 - US Open) 15 years 6 months 9 days

3. Jimmy Arias (1980 - Palm Harbor) 15 years 7 months 15 days

4. Aaron Kirckstein (1983 - Johhanesburg) 15 years 8 months 2 days

5. Andre Agassi (1986 - La Quinta) 15 years 9 months 26 days

6. Richard Gasquet (2002 - Monte Carlo) 15 years 9 months 27 days

7. Mats Wilander (1980 - Bastad) 15 years 10 months 22 days

8. Rafael Nadal (2002 - Mallorca) 15 years 10 months 26 days

9. Ryan Harrison (2008 - Houston) 15 years 11 months 7 days

10. John Austin (1973 - Bretton Woods) 15 years 11 months 23 days

Franco Davín (1985 - Buenos Aires) 15 years and 45 days
http://www.atpworldtour.com/Tennis/Players/Da/F/Franco-Davin.aspx?t=pa&y=1985&m=s&e=0#

 

[TennisOnWood]

Bjorn Borg won his first ATP match in Madrid 1972 at the age of 15 years, 10 monthes and 10 days

 

[Hesse]

Eldrick and Nadal Power thanks for your sugestions.

:worship: How did you get this data? You have oldest as well?

I counted it myself and I used this website http://www.tennis28.com/ .

I want to do oldest players classification.