ST
Class of 2028 · 2-Star
🇩🇪 Serdar Theis
★★★★★
★★ · 2-Star
STR
49.6
4-yr proj 50.1
College List
SCHOOLOFFERINTEREST
SCHOL.STRIKEPRED.STATUS
Dreamsheet
Stanford
USC
Ohio State
Junior Badges
MASTERSChampion
MAJORChampion
GLOBALTop 25
GLOBALTop 50
GLOBALTop 100
GLOBALTop 250
NATIONTop 5
NATIONTop 10
Junior Results
DATETOURNAMENT
LEVELRESULT
Wk 2
Xiamen Championships
National
R16
Wk 3
Kruševac Open
National
Semifinalist
Wk 4
Hermosillo International
Premier
Champion
Wk 6
Culiacán International
Major
Champion
Wk 7
Dubrovnik Masters
Masters
R16
Wk 9
Blumenau Masters Cup
Masters
R16
Wk 10
Liberec International Masters
Masters
R32
Wk 12
Brno International Masters
Masters
Finalist
Wk 13
Culiacán Masters Cup
Masters
R32
Wk 14
Bonn Masters Cup
Masters
R32
Wk 16
Ravenna Masters Cup
Masters
R16
Wk 17
Rouen Masters Cup
Masters
R32
Wk 19
Ghent International Masters
Masters
R32
Wk 20
Cuiabá International Masters
Masters
R32
Wk 22
Indore Masters
Masters
Semifinalist
Wk 23
Wimbledon Junior Championships
Grand Slam
R16
Wk 25
Plzeň International Masters
Masters
R32
Wk 26
Karlovy Vary International Masters
Masters
R16
Wk 27
České Budějovice International Masters
Masters
R16
Wk 29
Nice Masters
Masters
R16
Wk 30
Namur Masters
Masters
R32
Wk 32
Potsdam Masters
Masters
Champion
Wk 33
Houston Masters Cup
Masters
R32
Wk 35
Gold Coast International Masters
Masters
R32
Wk 36
Nottingham Masters
Masters
Quarterfinalist
Junior Doubles
DATETOURNAMENT
LEVELPARTNERRESULT
Wk 2
Xiamen Championships
National
Gardnar Breland
Quarterfinalist
Wk 3
Kruševac Open
National
Trent Revelle
Semifinalist
Wk 4
Hermosillo International
Premier
Tamer Hassan
Champion
Wk 6
Culiacán International
Major
Cree January
Quarterfinalist
Wk 7
Dubrovnik Masters
Masters
Khalid Frimpong
R16
Wk 9
Blumenau Masters Cup
Masters
Raul Balde
R16
Wk 10
Liberec International Masters
Masters
Manuel Ramirez
Finalist
Wk 13
Culiacán Masters Cup
Masters
Victor Reina
Finalist
Wk 16
Ravenna Masters Cup
Masters
Mats Goeßling
R16
Wk 19
Ghent International Masters
Masters
Kaheim Clancy
R16
Wk 22
Indore Masters
Masters
Graydon Harrold
Finalist
Wk 25
Plzeň International Masters
Masters
Khalid Frimpong
R16
Wk 26
Karlovy Vary International Masters
Masters
Norm Gengler
R16
Wk 27
České Budějovice International Masters
Masters
Norm Gengler
R16
Wk 29
Nice Masters
Masters
Bergin Ramon-Edwards
Finalist
Wk 33
Houston Masters Cup
Masters
Martin Isaksson
Quarterfinalist
Wk 35
Gold Coast International Masters
Masters
Michal Doležal
R16
Junior Match Record
DATETOURNAMENT
W/LOPPONENTSCORE
Wk 2
Xiamen Championships Round of 32
W
Chuck Porter
6-3 3-6 10-8
Wk 2
Xiamen Championships Round of 16
L
Donny Berry-Johnson
3-6 1-6
Wk 3
Kruševac Open Round of 32
W
Brett Whalen
6-1 6-3
Wk 3
Kruševac Open Round of 16
W
Leighton Edwards
6-3 6-0
Wk 3
Kruševac Open Quarterfinals
W
Matthias Wilke
7-5 6-2
Wk 3
Kruševac Open Semifinals
L
Kyle Jayich
6-4 6-7 8-10
Wk 4
Hermosillo International Round of 32
W
Keegan MacIntyre
6-0 6-0
Wk 4
Hermosillo International Round of 16
W
Rykar Koné
6-0 6-0
Wk 4
Hermosillo International Quarterfinals
W
Pione Vangsgaard
6-3 6-2
Wk 4
Hermosillo International Semifinals
W
Marty Fassitt
4-6 6-1 10-6
Wk 4
Hermosillo International Final
W
Veikko Aaltonen
6-1 6-0
Wk 6
Culiacán International Round of 32
W
Marmaduke Minaya
6-2 6-1
Wk 6
Culiacán International Round of 16
W
Leon Pearman
6-3 6-4
Wk 6
Culiacán International Quarterfinals
W
Liam Clelland
4-6 6-3 10-5
Wk 6
Culiacán International Semifinals
W
Luís Vieira
6-7 6-4 10-4
Wk 6
Culiacán International Final
W
Kwinten Achonwa
7-5 4-6 10-6
Wk 7
Dubrovnik Masters Round of 32
W
David Porteous
7-6 6-4
Wk 7
Dubrovnik Masters Round of 16
L
Donny Berry-Johnson
2-6 3-6
Wk 9
Blumenau Masters Cup Round of 32
W
Robin Weidenfeller
6-0 6-1
Wk 9
Blumenau Masters Cup Round of 16
L
Phil Lee
5-7 4-6
Wk 10
Liberec International Masters Round of 32
L
John Matsumoto
1-6 5-7
Wk 12
Brno International Masters Round of 16
W
Johan Eriksson
6-3 3-6 10-6
Wk 12
Brno International Masters Quarterfinals
W
Kingsley Johannès
7-5 4-6 10-7
Wk 12
Brno International Masters Semifinals
W
Hubert Crane
6-4 7-6
Wk 12
Brno International Masters Final
L
Carter Lozano
5-7 6-7
Wk 13
Culiacán Masters Cup Round of 32
L
Kaheim Clancy
6-7 4-6
Wk 14
Bonn Masters Cup Round of 32
L
Dariusz Jablonski
5-7 3-6
Wk 16
Ravenna Masters Cup Round of 32
W
Pablo Alonso
3-6 6-4 10-7
Wk 16
Ravenna Masters Cup Round of 16
L
Jaime Moreno
1-6 4-6
Wk 17
Rouen Masters Cup Round of 32
L
Rhodri Davies
6-7 4-6
Wk 19
Ghent International Masters Round of 32
L
Niigata Golomán
6-7 4-6
Wk 20
Cuiabá International Masters Round of 32
L
Giampaolo Severini
7-5 3-6 8-10
Wk 22
Indore Masters Round of 16
W
Malachi Styslinger
6-3 6-4
Wk 22
Indore Masters Quarterfinals
W
Don Roebuck
6-4 7-6
Wk 22
Indore Masters Semifinals
L
Luboš Hájek
6-2 3-6 6-10
Wk 23
Wimbledon Junior Championships Round of 32
W
Igor Kosminskaya
6-4 1-6 11-9
Wk 23
Wimbledon Junior Championships Round of 16
L
Donny Berry-Johnson
6-7 5-7
Wk 25
Plzeň International Masters Round of 32
L
Pablo Alonso
2-6 3-6
Wk 26
Karlovy Vary International Masters Round of 32
W
Igor Kosminskaya
3-6 6-4 10-8
Wk 26
Karlovy Vary International Masters Round of 16
L
Pablo Alonso
3-6 6-7
Wk 27
České Budějovice International Masters Round of 32
W
Johan Eriksson
6-2 7-5
Wk 27
České Budějovice International Masters Round of 16
L
Hans-Jörg Herbert
2-6 6-7
Wk 29
Nice Masters Round of 32
W
Norm Gengler
6-7 6-4 10-8
Wk 29
Nice Masters Round of 16
L
Aaron Iredale
2-6 0-6
Wk 30
Namur Masters Round of 32
L
Pablo Alonso
6-7 6-7
Wk 32
Potsdam Masters Round of 16
W
Pancho Baklenko
6-3 6-2
Wk 32
Potsdam Masters Quarterfinals
W
Kendrick Hartrup
6-3 6-0
Wk 32
Potsdam Masters Semifinals
W
Kendrick Keil
1-6 6-4 10-8
Wk 32
Potsdam Masters Final
W
Darwin Barroso
4-6 6-3 10-4
Wk 33
Houston Masters Cup Round of 32
L
Don Roebuck
7-5 4-6 5-10
Wk 35
Gold Coast International Masters Round of 32
L
Jiří Pekhart
1-6 6-2 5-10
Wk 36
Nottingham Masters Round of 32
W
Mauricio Durán
6-4 6-4
Wk 36
Nottingham Masters Round of 16
W
Dariusz Jablonski
7-6 6-3
Wk 36
Nottingham Masters Quarterfinals
L
Ahmad Adams
6-7 6-7
Scouting
| Shared service (consensus) | 42.3 |
| Your department | 57.0 |
| 4-year projection | 50.1 |
Ranking History
| DATE | GLOBAL | NATION | STR |
| Early 2028 | #17 | #3 | 49.5 |
| Mid 2028 | #21 | #3 | 49.2 |
| Late 2028 | #20 | #3 | 49.5 |
| Final 2028 | #18 | #2 | 49.7 |
Attributes
| Serve Power | 64 | |
| Serve Accuracy | 57 | |
| Return | 61 | |
| Forehand | 63 | |
| Backhand | 64 | |
| Consistency | 58 | |
| Net Play | 59 | |
| Speed | 66 | |
| Stamina | 62 | |
| Composure | 69 | |
| Clutch | 62 |
Recruiting Timeline
| Received interest from Oregon | early_contact Wk 2 |
| Received interest from Santa Clara | early_contact Wk 2 |
| Received interest from Georgia Tech | early_contact Wk 3 |
| Offered by Georgia Tech | offers Wk 11 |
| Offered by Oregon | offers Wk 12 |
| Offered by Santa Clara | offers Wk 12 |
| Offered by Washington | offers Wk 13 |
| Official visit to Georgia Tech | visits Wk 17 |
| Official visit to Oregon | visits Wk 17 |



