Tomas Ugo Behrend (born 12 December 1974) is a German former professional tennis player. His career high ATP singles ranking was World No. 74, which he attained in October 2005. His career high in doubles was World No. 43 in October 2007.
Behrend retired in 2007 and said he regrets never having the opportunity to have played Andre Agassi before he retired. Behrend has opened up a tennis academy in his hometown of Alsdorf called ToBe.
In 1991 Behrend went to Germany at the age of 17 to play club tennis, through his German background he was able obtain a German passport which made it easier for travel and financially more lucrative for him to represent Germany than Brazil, at time as a Brazilian player, he would have taxed at 45% of his prize money.
2003 was Behrend's best year in singles and there were calls for Behrend to play Davis Cup for Brazil, but this avenue was closed when Behrend was selected to play for Germany at the age of 28 against Belarus. He lost his only Davis Cup match to Max Mirnyi 5–7, 2–6, 7–6(6), 6–2, 6–4. In spite of the loss Behrend said " To represent a nation in the World Group of Davis Cup is the dream for any player and at 28, perhaps this was my last chance". Source
On the subject of representing Germany and not Brazil. Behrend believes that there was no opportunity for him at the start of his career to become a professional in Brazil and in Germany he was able to receive financial assistance. Source He had always wanted to be called up by Brazil, but was upset at the politics behind the scenes, when it came to the fourth player, given that Gustavo Kuerten, Fernando Meligeni and Flávio Saretta were all fit, then they were selected and the often the fourth member was ranked behind him in the rankings, therefore "I am a Brazilian with a German passport".
| Grand Slam (0) |
| ATP Masters Series (0) |
| ATP Tour (0) |
| Challengers (7) |
| Futures (1) |
| 1. | 1998 | Germany F13 | Clay | Mehdi Tahiri | 6–3, 7–6 |
| 2. | 1998 | Budva | Clay | Fredrik Jonsson | 3–6, 6–3, 6–2 |
| 3. | 2002 | Sofia | Clay | Werner Eschauer | 6–0, 6–3 |
| 4. | 2003 | San Remo | Clay | Werner Eschauer | 6–4, 6–2 |
| 5. | 2003 | Weiden | Clay | Björn Phau | 2–6, 6–4, 6–1 |
| 6. | 2004 | Kish Island | Clay | Mathieu Montcourt | 7–6(7–3), 6–1 |
| 7. | 2005 | Santiago | Clay | Adrián García | 7–6(7–3), 4–6, 6–2 |
| 8. | 2005 | Olbia | Clay | Alessio di Mauro | 6–4, 7–6(7–3) |
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