CA
🇺🇸 🇵🇷
Celso Alonso
USA / PUR
Class of 2026 · Born Vega Baja, PR · Apr 25 ·
★1-Star
STR
37.9
current (projection)
StrikePrediction · favourite to commit:
Brandeis
100%
1 offer
Rankings
| Recruiting board (consensus) | #819 |
| Puerto Rico | #34 |
| Ranking points (99 pts · 24 events) | #833 |
| STR | 37.9 |
| Junior STR (singles) | 37.2 |
| Doubles STR (results-based) | 38.3 |
Junior Results
DATETOURNAMENT
LEVELRESULT
Wk 1
Kamloops Challenger
Developmental
R16
Wk 2
Sisak Open
Premier
R32
Wk 4
Valjevo Challenger
Developmental
R32
Wk 5
St. Louis Classic
National
R32
Wk 7
Hannover Open
Developmental
R32
Wk 8
Split Challenger
Developmental
R16
Wk 10
Guangzhou Challenger
Developmental
R32
Wk 11
Whitby Open
Developmental
R16
Wk 13
Hluboká Challenger
Developmental
R16
Wk 14
Kraljevo Challenger
Developmental
R32
Wk 16
Frankfurt Classic
State
R32
Wk 17
Split Classic
State
R32
Wk 19
Utrecht Open
State
Quarterfinalist
Wk 20
Mannheim Classic
State
R32
Wk 22
Markham Invitational
State
Quarterfinalist
Wk 23
Pune Cup
State
R32
Wk 25
Recife Invitational
State
R16
Wk 26
Hamamatsu Cup
State
R16
Wk 28
Saskatoon Cup
State
R16
Wk 29
Leskovac Classic
State
R32
Wk 31
Amsterdam Cup
State
Champion
Wk 32
Miami Classic
State
R32
Wk 34
Kamloops Classic
State
R16
Wk 35
Catamarca Cup
State
R32
Junior Doubles
DATETOURNAMENT
LEVELPARTNERRESULT
Wk 1
Kamloops Challenger
Developmental
Jun-seok Seo
Semifinalist
Wk 5
St. Louis Classic
National
Denis Zhurbin
Finalist
Wk 7
Hannover Open
Developmental
Sérgio Silva
Semifinalist
Wk 19
Utrecht Open
State
Ricki Anton
Finalist
Wk 22
Markham Invitational
State
Raphaël Sagna
Semifinalist
Wk 26
Hamamatsu Cup
State
Victor Moran
Champion
Wk 29
Leskovac Classic
State
Manuel Colombo
Champion
Wk 32
Miami Classic
State
Arturo Aramburu
Finalist
Junior Match Record
DATETOURNAMENT
W/LOPPONENTSCORE
Wk 1
Kamloops Challenger Round of 32
W
Scooter Cheek
7-6 6-2
Wk 1
Kamloops Challenger Round of 16
L
Lester Valdes
1-6 2-6
Wk 2
Sisak Open Round of 32
L
Rhyne Power
3-6 2-6
Wk 4
Valjevo Challenger Round of 32
L
Aleksandar Beeckman
3-6 2-6
Wk 5
St. Louis Classic Round of 32
L
Ayrton Cuadrado
0-6 1-6
Wk 7
Hannover Open Round of 32
L
Indiana Kießling
1-6 6-7
Wk 8
Split Challenger Round of 32
W
Sérgio Silva
7-5 6-2
Wk 8
Split Challenger Round of 16
L
Ryler Bourns
1-6 1-6
Wk 10
Guangzhou Challenger Round of 32
L
Adam Elder
3-6 1-6
Wk 11
Whitby Open Round of 32
W
Budge Millar
6-2 6-1
Wk 11
Whitby Open Round of 16
L
Aleš Pospíšil
5-7 3-6
Wk 13
Hluboká Challenger Round of 32
W
Jake Williams
6-1 6-3
Wk 13
Hluboká Challenger Round of 16
L
Waldemar Walter
5-7 2-6
Wk 14
Kraljevo Challenger Round of 32
L
Zaydrius Batchelder
3-6 0-6
Wk 16
Frankfurt Classic Round of 32
L
Quaylen Chandler
6-7 1-6
Wk 17
Split Classic Round of 32
L
Arnold Alison
7-6 2-6 4-10
Wk 19
Utrecht Open Round of 32
W
Adrian Itete
6-4 6-1
Wk 19
Utrecht Open Round of 16
W
Jaime de Alboran
6-3 6-3
Wk 19
Utrecht Open Quarterfinals
L
Damion Hawk
3-6 4-6
Wk 20
Mannheim Classic Round of 32
L
Arnold Alison
5-7 0-6
Wk 22
Markham Invitational Round of 32
W
Jaime de Alboran
7-6 6-4
Wk 22
Markham Invitational Round of 16
W
Jorge Cordero
7-6 6-2
Wk 22
Markham Invitational Quarterfinals
L
Aigars Gailītis
6-7 2-6
Wk 23
Pune Cup Round of 32
L
Edgar Dakin
6-3 1-6 5-10
Wk 25
Recife Invitational Round of 32
W
Mylan Kingsley
6-3 6-0
Wk 25
Recife Invitational Round of 16
L
Leonid Safina
6-3 1-6 8-10
Wk 26
Hamamatsu Cup Round of 32
W
Thai-Son Straton
6-3 6-0
Wk 26
Hamamatsu Cup Round of 16
L
Keegan Mattek-Sands
6-4 1-6 7-10
Wk 28
Saskatoon Cup Round of 32
W
Amir Bowles
6-4 6-4
Wk 28
Saskatoon Cup Round of 16
L
Emil Bowers
6-4 4-6 9-11
Wk 29
Leskovac Classic Round of 32
L
Charles Laughlin
6-3 5-7 7-10
Wk 31
Amsterdam Cup Round of 32
W
Manaaki Marsden
2-6 6-3 10-7
Wk 31
Amsterdam Cup Round of 16
W
Emil Bowers
6-3 6-1
Wk 31
Amsterdam Cup Quarterfinals
W
Raphaël Sagna
6-7 7-6 10-7
Wk 31
Amsterdam Cup Semifinals
W
Max Higashiguchi
4-6 6-2 10-6
Wk 31
Amsterdam Cup Final
W
Bryan Scalvini
6-4 7-5
Wk 32
Miami Classic Round of 32
L
Gerard Belinsky
5-7 6-7
Wk 34
Kamloops Classic Round of 32
W
Earthna Donnelly
6-4 3-6 10-4
Wk 34
Kamloops Classic Round of 16
L
Russell Sewell
3-6 4-6
Wk 35
Catamarca Cup Round of 32
L
Jefferson Augusto
0-6 3-6
College List
SCHOOLOFFERINTEREST
SCHOL.STRIKEPRED.STATUS
Brandeis
✓
Hot
⅙
100%
Finalist
Dreamsheet
Stanford
Virginia
North Carolina
Scouting
| Shared service (consensus) | 50.1 |
| Your department | 48.8 |
| 4-year projection | 38.8 |
Ranking History
| DATE | NATIONAL | STATE | STR |
| Early 2026 | #538 | #29 | 37.4 |
| Mid 2026 | #552 | #29 | 37.3 |
| Late 2026 | #554 | #31 | 37.2 |
| Final 2026 | #561 | #31 | 37.1 |
Attributes
| Serve Power | 37 | |
| Serve Accuracy | 35 | |
| Return | 39 | |
| Forehand | 36 | |
| Backhand | 37 | |
| Consistency | 37 | |
| Net Play | 37 | |
| Speed | 36 | |
| Stamina | 36 | |
| Composure | 35 | |
| Clutch | 40 |
Recruiting
| Intended major | Environmental Science |
| Junior tier | Local Competitive |
| Origin | Domestic · dual citizen |
| Commitment | Uncommitted |
Recruiting Timeline
| Received interest from Brandeis | early_contact Wk 2 |
| Offered by Brandeis | offers Wk 8 |
| Official visit to Brandeis | visits Wk 17 |