Zdenek Kolar and Stefan Popovic will face off in the 1^st round of the Biella Challenger for the 1^st time in their career. They are scheduled to play on Tuesday at 12:30 pm on CAMPO 4 SERVIZI E SETA. In the following lines you can find the head to head analysis and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Zdenek Kolar who should win in 2 sets.

As per the initial odds, Zdenek Kolar is the pick to win this match.
Zdenek Kolar -> 1.222
Stefan Popovic -> 3.9

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Prediction and head to head Zdenek Kolar vs. Stefan Popovic

There is no head to head record between Zdenek Kolar and Stefan Popovic since this will be the first time that they will fight against each other in the main tour.

Zdenek Kolar

Ranked no. 276, Zdenek will start his run in the Biella Challenger after he played his last match in the Tulln Challenger where he lost 5-7 6-2 6-3 to Mikrut in the 1^st round on the 2^nd of September.

The Czech has a compiled 47-22 win-loss record in 2025, 44-20 on clay (See FULL STATS).

His best result of the current year was winning the title the Sofia 1 Challenger where he defeated Murkel Dellien in the final 6-2 6-2.

Talking about his overall career, Kolar has an overall 378-296 record. He has a positive 266-182 record on clay.

Previously in the Biella Challenger

Kolar has never competed in this tournament before.

Stefan Popovic

Ranked no. 550, the Serbian reached the 1^st round after defeating Davide Malan 6-0 6-0 and Massimo Giunta 6-4 6-4.

In the qualifications, Popovic had a good straight sets win against Giunta (6-4 6-4). During the match Popovic scored 69 points vs Giunta’s 59. Stefan was pretty aggressive to blast 33 winners.

Talking about serving, Popovic fired 3 aces and he committed only 2 double faults. Stefan Popovic was pretty effective on serve to win 77% (33/43) of his 1st serve and 63% (10/16) on the second serve. This was the main reason for not conceding a single break during the match. The Serbian broke Giunta twice after converting 33% of his break points (2/6).

Overall Performance in this tournament

Popovic started his run at this tournament from the qualifications. In the main draw, he hasn’t lost yet a set in this competition to conquer 62% of the points he played.

Popovic’s best result of the season was reaching the final in M15 Antalya and M15 Kursumlijska Banja.

Stefan has an aggregate 32-23 win-loss record in 2025, 32-23 on clay (See FULL STATS).

Tennis Scores in Biella Challenger

• Jelle SelsSels – Eric VanshelboimVanshelboim (6-3 7-5) – Stats, scores, rankings
• Kilian FeldbauschFeldbausch – Alexander WeisWeis (7-5 6-3) – Stats, scores, rankings
• Marko TopoTopo – Raul BrancaccioBrancaccio (6-3 6-4) – Stats, scores, rankings
• Dennis NovakNovak – Sandro KoppKopp (4-6 6-3 7-5) – Stats, scores, rankings
• Robert StrombachsStrombachs – Gabriele PirainoPiraino (6-3 6-4) – Stats, scores, rankings

Upcoming matches in the draw

• Stefano TravagliaTravaglia – Federico ArnaboldiArnaboldi (0-0) – H2H and prediction
• Stefano NapolitanoNapolitano – Enrico Dalla ValleDalla Valle (1-0) – H2H and prediction
• Alexander RitschardRitschard – (0-0) – H2H and prediction
• Dennis NovakNovak – Jelle SelsSels (1-0) – H2H and prediction
• Giovanni OradiniOradini – (1-1) – H2H and prediction
• Oleg PrihodkoPrihodko – Maxime ChazalChazal (1-0) – H2H and prediction
• Buvaysar GadamauriGadamauri – Marco CecchinatoCecchinato (0-0) – H2H and prediction
• Jonas ForejtekForejtek – Alejandro Moro CanasMoro Canas (0-0) – H2H and prediction