Sophie Costoulas has struggled to find her footing on the circuit, with a career baseline win percentage hovering around 56% on hard courts. Over the last two years, her performance has been on a downward trajectory, suggesting that she is currently not at her best. Her recent matches reflect this trend, as she has lost four of her last five encounters, including a disappointing defeat to T. Valentova in Athens.
Costoulas arrives at the Livesport Prague Open without any recent victories to build upon, her last win dating back to early June against S. Sakellaridi. With no sets won in her last few outings, the upcoming match against Nao Hibino will be critical. She needs to regain her footing against a player who poses a significant challenge, especially given her shaky form.
Match results: S. Costoulas
14 Jul 2026Athens (Greece) - Qualification
T. Valentova
S. Costoulas
20
61
62
L
23 Jun 2026WTA Wimbledon
S. Hunter
S. Costoulas
20
75
64
L
3 Jun 2026Foggia (Italy)
T. Pieri
S. Costoulas
02
16
W
1 Jun 2026Foggia (Italy)
S. Sakellaridi
S. Costoulas
12
46
62
36
W
28 May 2026W75 Zaragoza (Spain)
N. Podoroska
S. Costoulas
21
36
60
L
27 May 2026W75 Zaragoza (Spain)
J. Mikulskyte
S. Costoulas
02
06
36
W
21 May 2026WTA French Open
H. Guo
S. Costoulas
20
63
64
L
20 May 2026WTA French Open
S. Costoulas
M. Hontama
20
64
63
W
18 May 2026WTA French Open
S. Costoulas
T. Mrdeza
20
60
62
W
5 May 2026Istanbul (Turkey) - Qualification
E. Pridankina
S. Costoulas
00
L
N. Hibino
Player Overview
Nao Hibino has experienced a turbulent season, reflected in her Elo rating and recent performances. Her ability to navigate matches has been inconsistent, with a mixed record that includes both victories and losses. While she has a solid baseline win percentage, her current form suggests she is stable but not rising, particularly after a recent win against M. Tona that followed two consecutive losses.
Match results: N. Hibino
14 Jul 2026Athens (Greece) - Qualification
C. Tauson
N. Hibino
20
75
64
L
12 Jul 2026Athens (Greece) - Qualification
N. Hibino
M. Tona
20
64
60
W
9 Jul 2026W50 Corroios-Seixal
N. Hibino
X. Gao
01
L
7 Jul 2026W50 Corroios-Seixal
L. Havlickova
N. Hibino
02
06
46
W
3 Jul 2026W50 Elvas (Portugal)
N. Hibino
C. Y. Lee
02
46
26
L
2 Jul 2026W50 Elvas (Portugal)
N. Hibino
V. Adkar
21
36
61
61
W
1 Jul 2026W50 Elvas (Portugal)
N. Hibino
I. Dapkute
10
61
W
24 Jun 2026WTA Wimbledon
D. Semenistaja
N. Hibino
21
64
16
62
L
23 Jun 2026WTA Wimbledon
P. Hon
N. Hibino
02
26
26
W
6 Jun 2026WTA Hertogenbosch
K. Volynets
N. Hibino
20
62
62
L
Players Analysis
S. Costoulas has shown a mixed performance in her last ten matches, winning only 4 out of 10. She has faced tough opponents, including a recent loss to T. Valentova and S. Hunter, both of whom are strong competitors. On the other hand, N. Hibino has had a slightly better run, winning 5 out of her last 10 matches, including a recent victory against M. Tona. This indicates that Hibino may have a slight edge in terms of current form.
In their respective recent matches, Costoulas has struggled against higher-ranked players, while Hibino has managed to secure wins against lower-ranked opponents. This trend could play a significant role in their upcoming encounter.
Statistical Analysis & Influencing Factors
Both players have similar statistics in terms of games won in their last ten matches, with Costoulas scoring 11 and Hibino also scoring 11. However, Costoulas has a higher average of games lost per match at 1.2 compared to Hibino's 1.1. This indicates that Hibino has been more consistent in her performances. Additionally, Costoulas has faced more challenging opponents recently, which may have impacted her confidence and performance levels.
With no head-to-head matches available, we rely on their recent forms and overall performance metrics. Costoulas's recent struggles against top-tier players could be a significant factor in this match, giving Hibino a potential advantage.
S. Costoulas — N. Hibino Prediction
Considering the recent forms and performance metrics, N. Hibino is predicted to win this match. Costoulas's inconsistency and recent losses against strong players suggest that she may struggle against Hibino, who has shown better form in her recent matches.
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
Double faults: 2
Break points: 3
In terms of tactical expectations, Hibino is likely to focus on her serve, aiming for aces and minimizing double faults, while Costoulas may need to rely on her groundstrokes to counter Hibino's serve. The match could see long rallies, especially if Costoulas can maintain her composure and capitalize on Hibino's potential errors.
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
DateMatchWSADFBP
18.07.2026 14:00Livesport Prague Open
S. Costoulas
N. Hibino
12
010101
45
23
34
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 the Livesport Prague Open.
BBC Sport - BBC Sport provides updates and coverage for major tennis tournaments, including the Livesport Prague Open.
LiveScore - LiveScore offers real-time scores and updates for tennis matches, including broadcast information.
