United StatesWTA US OpenFinished

Predictions graded

Nao Hibino #225Japan2Anna Siskova #207Czechia0

Sets 6-4 · 6-2Wed 26 Aug 2026, 21:02 Predictions gradedQ2Hard

Predictions4–267%

Edges1–0100%

Player Profiles

Ranking advantageAnna Siskova · 18 places

Nao Hibino

Japan

ITF lists Hibino's preferred surface as hard and her career-high singles ranking as No. 56, reached on 18 January 2016. Her listed ranking was No. 225 on 20 July 2026.

Current ranking: #225
Peak ranking: #56 · 2016
Current age: 31
Preferred surface: Hard
Hand: Right handed
Height: 163 cm

Anna Siskova

Czechia

Czech right-hander, born July 1, 2001. WTA lists a singles career-high ranking of No. 212; no reliable source from this search established a preferred surface.

Current ranking: #207
Peak ranking: #212 · 2026
Current age: 25
Preferred surface: —
Hand: Right handed
Height: —

Quick Take

Pre-match view

Context last updated 26 Aug 2026, 03:12 · Europe/Bucharest

Hibino's superior hard-court return game and experience give her a slight edge over Siskova, whose hard-court sample is too small to trust.

Expect a competitive match with low aces and potentially over 21.5 total games, but avoid the 2-1 Hibino set betting market.

Context

Hibino last 15 on hard: 44.6% return points won (9 matches tracked).
- Siskova last 15 on hard: 38.9% return points won (1 match tracked).
- Hibino's career return points won is 45%, while Siskova's is 49% overall, but Siskova's hard-court sample is too small to trust.
Siskova last 15 overall: 11-4 record, but 10 wins came on clay.
- Siskova last 15 on clay: 71.4% win rate (14 matches tracked).
- Siskova last 15 on hard: 1-0 record, with only 1 match tracked.
Hibino last 15 on hard: 3.8 double faults per match (9 matches tracked).
- Siskova last 15 overall: 2.4 double faults per match (15 matches tracked).
- Combined expected double faults: 6.3 per match, slightly over the 5.5 line.

BetBugs edges

Compare BetBugs' chances with the market's.

BetBugs probabilities

How likely BetBugs thought each outcome was.

Result1 of 1 landed

Signal quality Medium · Uncertainty band Lean · Market price 1.91
The read
Hibino's recent hard-court form and superior return numbers on the surface give her a slight edge over Siskova, whose hard-court sample is too small to trust.
- Hibino last 15 on hard: 6-4 record, 56% games won, 44.6% return points won (9 matches tracked).
- Siskova last 15 on hard: 1-0 record, 48.3% games won, 38.9% return points won (1 match tracked).
- Hibino career hard-court win percentage 54.4% vs Siskova 58.1% overall, but Siskova's hard sample is tiny.
- Hibino ranking 227 vs Siskova 207, but Hibino has far more hard-court experience at tour level.
BetBugs · Match WinnerwonNao HibinoEstimated chance58%

Games2 of 2 landed

Signal quality Medium · Uncertainty band Lean · Not priced
The read
Both players' recent hard-court matches trend toward longer contests, and the competitive nature of this matchup supports a total above 21.5 games.
- Hibino last 15 overall average 96.9 minutes per match; hard average 104.1 minutes.
- Siskova last 15 overall average 96.2 minutes; hard average 120 minutes (1 match).
- Hibino last 15 hard: 56% games won, 117 games in 10 matches = 11.7 games per set average.
- Siskova last 15 hard: 48.3% games won, 14 games in 1 match = 14 games per set average.
BetBugs · Total GameswonOver 21.5Estimated chance62%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
The first set is likely to be competitive, with both players' recent hard-court sets averaging over 9.5 games.
- Hibino last 15 hard: average 11.7 games per set.
- Siskova last 15 hard: average 14 games per set (1 match).
- Hibino's recent hard matches include three tiebreaks in 10 matches.
BetBugs · Set 1 Total GameswonOver 9.5Estimated chance55%

Sets1 of 1 landed

Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Hibino's strong first-set conversion and hard-court experience make her a marginal favorite to take the opener.
- Hibino first-set win conversion career 86%, indicating she often starts strong.
- Siskova first-set win conversion career 84%, similar but slightly lower.
- Hibino last 15 hard: 60% sets won; Siskova last 15 hard: 66.7% sets won (1 match).
BetBugs · Set 1 WinnerwonNao HibinoEstimated chance55%

Match stats0 of 0 landed

Signal quality Medium · Uncertainty band Lean · Not priced
The read
Neither player is a big server, and their recent ace rates suggest a low total ace count.
- Hibino last 15 overall: 2.9 aces per match; hard: 2.9 aces per match.
- Siskova last 15 overall: 0.9 aces per match; hard: 0 aces in 1 match.
- Combined expected aces: 3.8 per match, well under 5.5.
BetBugs · Total Acesnot gradableUnder 5.5Estimated chance60%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Hibino's higher double fault rate pushes the combined total above the line, though Siskova's low rate adds uncertainty.
- Hibino last 15 overall: 3.9 double faults per match; hard: 3.8 per match.
- Siskova last 15 overall: 2.4 double faults per match; hard: 1.0 per match (1 match).
- Combined expected double faults: 6.3 per match, slightly over 5.5.
BetBugs · Total Double Faultsnot gradableOver 5.5Estimated chance52%

Previous match context available

Nao Hibino

8W 7L

7-6(4) 6-1#809Janae Preston

6-1 3-6 6-2#97Mananchaya Sawangkaew

6-1 6-2#717Teah Chavez

6-7(4) 7-5 6-4#155Sofia Costoulas

7-5 6-4#42Clara Tauson

6-4 6-0#355Miriana Tona

6-0 6-4#225Lucie Havlickova

6-4 6-2#143Carol Young Suh Lee

3-6 6-1 6-1#389Vaishnavi Adkar

7-6(10) 6-1#862Iveta Dapkute

6-4 1-6 6-2#109Darja Semenistaja

6-2 6-2#156Priscilla Hon

6-2 6-2#91Katie Volynets

6-4 3-6 6-2#35Janice Tjen

6-4 6-2#165Vendula Valdmannova

Anna Siskova

11W 4L

1-6 6-4 7-5#137Noma Akugue Noha

4-6 6-2 7-5#356Yelyzaveta Kotliar

6-3 6-0#829Laetitia Pulchartova

7-6(6) 1-6 6-3#451Rasheeda Mcadoo

6-0 6-3#579Ruth Roura Llaverias

7-5 1-6 6-2#666Merel Hoedt

6-2 6-1#859Sonja Zhenikhova

6-3 6-2#502Maria Martinez Vaquero

6-4 7-5#276Berfu Cengiz

6-2 6-3#114Julia Grabher

6-1 6-1#833Meritxell Teixido Garcia

6-3 7-6(5)#171Teodora Kostovic

3-6 6-3 6-1#194Anastasiia Sobolieva

6-2 6-0—Ava Schueller

6-3 5-7 6-4#485Aneta Kucmova

Stat Battle

Last 15 match performance, compared side by side.

NHNao HibinoHibino

Last 15

3–5

9 core stats · 1 even

Anna SiskovaSiskovaAS

Anna Siskova carries the stronger recent form — Nao Hibino's route runs through serve.

Serve · 2–2 · 1 even

1st Serve In14/15 · 15/1563.9%+7.0pp70.9%

1st Serve Won14/15 · 15/1566.3%+5.4pp60.9%

2nd Serve Won14/15 · 15/1548.4%—48.1%

Aces / Match14/15 · 15/152.9+2.00.9

Double Faults / Match14/15 · 15/153.91.5 fewer2.4

Return · 0–1

Return Pts Won14/15 · 15/1542.2%+6.6pp48.8%

Pressure · 1–1

Break Pts Converted14/15 · 15/1541.4%+6.0pp47.4%

Break Pts Saved14/15 · 15/1563.0%+14.0pp49.0%

Points · 0–1

Total Pts Won14/15 · 15/1551.0%+1.9pp52.9%

Serve · 2–2 · 1 even

63.9%1st Serve In14/15 · 15/15+7.0pp70.9%

66.3%1st Serve Won14/15 · 15/15+5.4pp60.9%

48.4%2nd Serve Won14/15 · 15/15—48.1%

2.9Aces / Match14/15 · 15/15+2.00.9

3.9Double Faults / Match14/15 · 15/151.5 fewer2.4

Return · 0–1

42.2%Return Pts Won14/15 · 15/15+6.6pp48.8%

Pressure · 1–1

41.4%Break Pts Converted14/15 · 15/15+6.0pp47.4%

63.0%Break Pts Saved14/15 · 15/15+14.0pp49.0%

Points · 0–1

51.0%Total Pts Won14/15 · 15/15+1.9pp52.9%