17.07.2026
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S. Costoulas vs N. Hibino Prediction — 18.07.2026

S. Costoulas flag
ATP - 146
S. Costoulas - N. Hibino
Livesport Prague Open
July 18, 2026 14:00
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N. Hibino flag
ATP - 174
S. Costoulas

Player Overview

Sophia Costoulas, currently navigating a challenging phase, has seen her performance dip below her career baseline of roughly 56% on hard courts. Her recent matches reflect a downward trend, with her current two-year trajectory showing no wins in her last five outings. This suggests she is in a declining state, struggling to recapture her competitive edge.

Costoulas has faced tough opponents recently, suffering defeats against Tereza Valentova and Sofia Hunter, both in straight sets. Her last victory came in early June against Tania Pieri, but since then, the results have been grim. With no wins in her last five matches and a lack of sets won, the upcoming match against Nao Hibino is critical for her to break this losing streak and regain some momentum.

Match results: S. Costoulas

14 Jul 2026 Athens (Greece) - Qualification
T. Valentova
S. Costoulas
2 0
6 1
6 2
L
23 Jun 2026 WTA Wimbledon
S. Hunter
S. Costoulas
2 0
7 5
6 4
L
3 Jun 2026 Foggia (Italy)
T. Pieri
S. Costoulas
0 2
1 6
W
1 Jun 2026 Foggia (Italy)
S. Sakellaridi
S. Costoulas
1 2
4 6
6 2
3 6
W
28 May 2026 W75 Zaragoza (Spain)
N. Podoroska
S. Costoulas
2 1
3 6
6 0
L
27 May 2026 W75 Zaragoza (Spain)
J. Mikulskyte
S. Costoulas
0 2
0 6
3 6
W
21 May 2026 WTA French Open
H. Guo
S. Costoulas
2 0
6 3
6 4
L
20 May 2026 WTA French Open
S. Costoulas
M. Hontama
2 0
6 4
6 3
W
18 May 2026 WTA French Open
S. Costoulas
T. Mrdeza
2 0
6 0
6 2
W
5 May 2026 Istanbul (Turkey) - Qualification
E. Pridankina
S. Costoulas
0 0
L
N. Hibino

Player Overview

In her last five matches, Hibino has managed only one win, and the losses have come in critical moments, such as her defeat to Clara Tauson in qualification. Her historical performance in this event is not particularly noteworthy, adding pressure as she faces Costoulas. Hibino needs to capitalize on this match to regain her footing and improve her standings in the tournament.

Match results: N. Hibino

14 Jul 2026 Athens (Greece) - Qualification
C. Tauson
N. Hibino
2 0
7 5
6 4
L
12 Jul 2026 Athens (Greece) - Qualification
N. Hibino
M. Tona
2 0
6 4
6 0
W
9 Jul 2026 W50 Corroios-Seixal
N. Hibino
X. Gao
0 1
L
7 Jul 2026 W50 Corroios-Seixal
L. Havlickova
N. Hibino
0 2
0 6
4 6
W
3 Jul 2026 W50 Elvas (Portugal)
N. Hibino
C. Y. Lee
0 2
4 6
2 6
L
2 Jul 2026 W50 Elvas (Portugal)
N. Hibino
V. Adkar
2 1
3 6
6 1
6 1
W
1 Jul 2026 W50 Elvas (Portugal)
N. Hibino
I. Dapkute
1 0
6 1
W
24 Jun 2026 WTA Wimbledon
D. Semenistaja
N. Hibino
2 1
6 4
1 6
6 2
L
23 Jun 2026 WTA Wimbledon
P. Hon
N. Hibino
0 2
2 6
2 6
W
6 Jun 2026 WTA Hertogenbosch
K. Volynets
N. Hibino
2 0
6 2
6 2
L

Players Analysis

S. Costoulas has shown a mixed form in her recent matches, with a record of 5 wins and 5 losses in her last 10 matches. Notably, she has struggled against higher-ranked opponents, as seen in her recent defeats at the WTA French Open and WTA Wimbledon. In contrast, N. Hibino has a slightly better recent performance, winning 6 out of her last 10 matches, including a recent victory in the Athens qualification round. This suggests that Hibino may have a slight edge in current form.

Statistical Analysis & Influencing Factors

Both players have faced tough competition recently, but N. Hibino's recent victories against lower-ranked players and her ability to win crucial points may give her an advantage. S. Costoulas has shown resilience in her matches, but her recent losses indicate potential vulnerabilities, especially in high-pressure situations. The absence of head-to-head matches between the two players makes it difficult to predict how they will match up against each other, but Hibino's recent form suggests she could capitalize on Costoulas's weaknesses.

S. Costoulas — N. Hibino Prediction

This match is expected to be competitive, with N. Hibino slightly favored to win based on her recent form and performance metrics. S. Costoulas will need to improve her consistency and capitalize on any opportunities to break Hibino's serve to secure a victory.

  • Final score in sets: 2:1
  • Predicted winner of each set: Set 1: N. Hibino, Set 2: S. Costoulas, Set 3: N. Hibino
  • Expected aces: 4
  • Expected double faults: 2
  • Expected break points: 5

N. Hibino's ability to maintain pressure on S. Costoulas will be crucial. If Hibino can effectively use her serve and capitalize on Costoulas's double faults, she should be able to secure the win. Costoulas will need to focus on her return game and look for opportunities to break Hibino's serve to stay competitive.

3 Reasons Why N. Hibino Will Win

  • Projected Sets Edge. The numeric forecast favors N. Hibino 2:1 in sets, reflecting a confident path to the win.
  • Match Context Edge. A combination of form, experience and tournament context favors N. Hibino.
  • Pressure Points. In recent matches, N. Hibino has looked slightly sharper in deciding games and late-set scenarios than S. Costoulas, which can swing tight scorelines.
Match Prediction
18.07.2026 14:00 Livesport Prague Open
S. Costoulas 1 0 1 0
N. Hibino 2 1 0 1
45
23
35

Where to watch S. Costoulas vs N. Hibino

  • WTA Official Website - Visit the official WTA website for live scores, match schedules, and broadcast information.
  • Tennis TV - Official streaming service for WTA matches, including the Livesport Prague Open.
  • ESPN - Check ESPN for broadcast details and live coverage of tennis events.
  • Eurosport - Eurosport provides coverage of tennis tournaments including the Livesport Prague Open.
  • LiveScore - Follow live scores and updates for the Livesport Prague Open.