2026 Split Open
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The 2026 Split Open was a professional tennis tournament played on outdoor clay courts. It was the seventh edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Split, Croatia between 23 and 29 March 2026.
Champions
Singles
- Croatia Mili Poljičak def. Germany Tom Gentzsch 6–4, 6–4.
Doubles
- Slovakia Miloš Karol / Croatia Mili Poljičak def. Bosnia and Herzegovina Mirza Bašić / Bosnia and Herzegovina Andrej Nedić 6–2, 6–2.
Singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| CRO | Matej Dodig | 214 | 1 |
| GBR | George Loffhagen | 222 | 2 |
| AUT | Lukas Neumayer | 227 | 3 |
| BIH | Nerman Fatić | 234 | 4 |
| POR | Frederico Ferreira Silva | 238 | 5 |
| BEL | Kimmer Coppejans | 244 | 6 |
| GER | Tom Gentzsch | 248 | 7 |
| GBR | Felix Gill | 252 | 8 |
- Rankings are as of 16 March 2026.
Other entrants
The following players received wildcards into the singles main draw:
- Croatia Emanuel Ivanišević
- Croatia Mili Poljičak
- Croatia Josip Šimundža
The following player received entry into the singles main draw through the Junior Accelerator programme:
The following players received entry into the singles main draw as alternates:
- Switzerland Kilian Feldbausch
- United States Christian Langmo
The following players received entry from the qualifying draw:
- South Korea Gerard Campaña Lee
- Turkey Ergi Kırkın
- Ukraine Oleksii Krutykh
- Italy Juan Cruz Martin Manzano
- Germany Adrian Oetzbach
- Italy Filippo Romano