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Predictions graded

Naomi Osaka #13Japan2Anastasia Zakharova #101Russia0

Sets 7-6 · 7-6Tue 1 Sept 2026, 02:19 Predictions gradedFirst RoundHard

Predictions4–544%

Edges4–450%

Player Profiles

Ranking advantageNaomi Osaka · 88 places

Naomi Osaka

Japan

Former world No. 1 and four-time major champion, with all four major titles won on hard courts. She returned from maternity leave in 2024 and reached the 2025 Montreal final and US Open semifinal.

Current ranking: #13
Peak ranking: #1 · 2019
Current age: 28
Preferred surface: Hard
Hand: Right handed
Height: 180 cm

Anastasia Zakharova

Russia

Zakharova, 24, is right-handed and reached a career-high singles ranking of No. 65 in April 2026. Her WTA biography lists Vladimir Zakharov as her coach.

Current ranking: #101
Peak ranking: #65 · 2026
Current age: 24
Preferred surface: Hard
Hand: Right handed
Height: 170 cm

Quick Take

Pre-match view

Context last updated 29 Aug 2026, 03:31 · Europe/Bucharest

Osaka's superior serve and recent form make her a heavy favorite over Zakharova, who has struggled against top-100 players.

The match winner odds are too short for value, but the total aces over 6.5 is a solid angle given Osaka's ace rate. Expect a straight-sets win with under 20.5 total games.

Context

Osaka, 28, is a four-time Grand Slam champion and former world No. 1, known for her powerful serve and aggressive baseline game.
Her 11-4 record in the last 15 matches shows she is playing well, but the losses to Rybakina, Eala, and Muchova indicate she can be beaten by top players. Against Zakharova, ranked 101, Osaka's superior level should give her a clear edge, but her occasional inconsistency could keep the match competitive.
- Osaka's last 15 matches: 11 wins, 4 losses (73.3% win rate).
- Wins include Aryna Sabalenka (ranked 1) and Daria Kasatkina (59); losses to Elena Rybakina (2), Alexandra Eala (18), and Karolina Muchova (7).
Osaka, 28, is the WTA No. 13 and right-handed. She withdrew from Cincinnati on 12 August citing fatigue after seven matches across Washington and Toronto.
The withdrawal ended her competition before the US Open, making the intervening recovery period relevant to her current availability. However, her recent form and the high-confidence outlook for this match suggest the fatigue is not expected to limit her significantly.
- Osaka cited fatigue for the withdrawal.
- The update recorded seven matches across the Washington and Toronto events before the withdrawal.
- Stored recent sample: 3 wins from 5 tracked matches.
ConfirmedSources checked 29 Aug 2026, 03:30 · Europe/BucharestWTA — Osaka pulls out of Cincinnati Open citing fatiguewww.wtatennis.com · 12 Aug 2026
Zakharova, 24, is ranked 101 and has spent most of her career on the ITF and lower WTA tours.
Her 10-5 record in the last 15 matches looks good, but only two wins came against top-100 players (Blinkova and Osorio). Against Osaka, a top-15 player, Zakharova's lack of experience at this level could be exposed, though her consistency may allow her to win games.
- Zakharova's last 15 matches: 10 wins, 5 losses (66.7% win rate).
- Wins against top-100: Anna Blinkova (94) and Maria Camila Osorio Serrano (58); losses to Kylie Collins (407) and Lucrezia Stefanini (119).
Osaka's serve is one of the best on tour, and she uses it to set up short points.
Osaka's first-serve dominance should give her many free points, but Zakharova's return numbers are solid for a player of her ranking. If Zakharova can get into rallies, she may be able to pressure Osaka's second serve, which is less reliable.
- Osaka: 6.7 aces per match, 74.6% first-serve points won, 54.5% second-serve points won.
- Zakharova: 48.4% return points won, 59.6% first-serve points won.

BetBugs edges

Compare BetBugs' chances with the market's.

Other edges · 8

The published chance does not exceed the market's implied chance.

Match WinnerwonUncertainty band: Strong lean

Naomi Osaka

1.08fair 1.22

BetBugs 82% · Market 92.6%

0.0ppshort

Osaka's superior serve and recent form against higher-ranked opposition give her a decisive edge over Zakharova.

Set 1 WinnerwonUncertainty band: Strong lean

Naomi Osaka

1.17fair 1.39

BetBugs 72% · Market 85.5%

0.0ppshort

Osaka's superior first-serve points won and first-set conversion rate make her a strong favorite, but the odds are too short for value.

Set 2 WinnerwonUncertainty band: Strong lean

Naomi Osaka

1.17fair 1.43

BetBugs 70% · Market 85.5%

0.0ppshort

Osaka's stronger second-serve and break-point conversion should close out the match, but the price offers no value.

Total SetswonUncertainty band: Strong lean

Under 2.5

1.25fair 1.47

BetBugs 68% · Market 80%

0.0ppshort

Osaka's superior serve and return stats make a straight-sets victory more likely than a three-setter.

BetBugs probabilities

How likely BetBugs thought each outcome was.

Result1 of 1 landed

Signal quality High · Uncertainty band Strong lean · Market price 1.08
The read
Osaka's superior serve and recent form against higher-ranked opposition give her a decisive edge over Zakharova.
- Osaka last15 overall record 11-4 (73.3%), hard-court record 5-2 (71.4%)
- Osaka last15 total points won 54.3%, first-serve points won 74.6%
- Zakharova last15 hard-court record 10-5 (66.7%), but recent losses to players ranked 407 and 119
- Osaka ranking 13 vs Zakharova ranking 101
BetBugs · Match WinnerwonNaomi OsakaEstimated chance82%

Games0 of 4 landed

Signal quality Medium · Uncertainty band Lean · Market price 1.53
The read
Both players' recent matches average under 20 games, and Osaka's dominant wins suggest a relatively quick match.
- Osaka last15 average games per match: 18.9 (284 games / 15 matches)
- Zakharova last15 average games per match: 19.9 (299 games / 15 matches)
- Osaka recent hard-court wins: 6-4 6-4, 6-1 6-2, 6-2 6-4
BetBugs · Total GameslostUnder 20.5Estimated chance62%
Signal quality Medium · Uncertainty band Lean · Market price 1.40
The read
Osaka's ability to win sets comfortably suggests she can cover a -4.5 game handicap.
- Osaka last15 average games won per match: 11.2
- Zakharova last15 average games won per match: 10.7
- Osaka recent hard-court wins: 6-1 6-2, 6-2 6-4, 6-4 6-4
BetBugs · Game HandicaplostNaomi Osaka -4.5Estimated chance58%
Signal quality Low · Uncertainty band Slight lean · Market price 1.50
The read
Osaka's ability to dominate early with her serve could lead to a short first set.
- Osaka last15 first-set average games: 9.3 (140 games / 15 matches)
- Zakharova last15 first-set average games: 9.5 (143 games / 15 matches)
- Osaka won first set 6-1, 6-2, 6-4 in recent hard-court matches
BetBugs · Set 1 Total GameslostUnder 9.5Estimated chance55%
Signal quality Low · Uncertainty band Slight lean · Market price 1.50
The read
If Osaka maintains her level, the second set could also be decided in under 10 games.
- Osaka last15 second-set average games: 9.6 (144 games / 15 matches)
- Zakharova last15 second-set average games: 10.4 (156 games / 15 matches)
- Osaka won second set 6-2, 6-4, 6-3 in recent hard-court matches
BetBugs · Set 2 Total GameslostUnder 9.5Estimated chance55%

Sets3 of 3 landed

Signal quality Medium · Uncertainty band Strong lean · Market price 1.17
The read
Osaka's strong first-serve performance and high first-set conversion rate make her likely to take the opening set.
- Osaka first-set win conversion career 90%
- Osaka last15 first-serve points won 74.6%
- Zakharova last15 first-serve points won 59.6%
BetBugs · Set 1 WinnerwonNaomi OsakaEstimated chance72%
Signal quality Medium · Uncertainty band Strong lean · Market price 1.17
The read
Osaka's stronger second-serve and break-point conversion should allow her to close out the match in straight sets.
- Osaka last15 second-serve points won 54.5%
- Zakharova last15 second-serve points won 48.7%
- Osaka last15 break points converted 48.5% vs Zakharova 44.1%
BetBugs · Set 2 WinnerwonNaomi OsakaEstimated chance70%
Signal quality Medium · Uncertainty band Strong lean · Market price 1.25
The read
Osaka's superior serve and return stats make a straight-sets victory more likely than a three-setter.
- Osaka last15 sets won 71.9% (23-9)
- Zakharova last15 sets won 65.6% (21-11)
- Osaka won 8 of last 15 matches in straight sets
BetBugs · Total SetswonUnder 2.5Estimated chance68%

Match stats0 of 1 landed

Signal quality Medium · Uncertainty band Strong lean · Not priced
The read
Given Osaka's dominance in recent matches, a tiebreak is less likely than a routine straight-sets win.
- Osaka last15 tiebreak win percentage: 54% career
- Zakharova last15 tiebreak win percentage: 49% career
- Osaka's recent straight-set wins often had no tiebreaks
BetBugs · Tiebreak in MatchlostNoEstimated chance65%
Signal quality Medium · Uncertainty band Lean · Not priced
The read
Osaka's ace rate alone should push the total over 6.5, with minimal contribution from Zakharova.
- Osaka last15 aces per match: 6.7
- Zakharova last15 aces per match: 0.6
- Osaka career aces: 2552 in 564 matches (4.5 per match)
BetBugs · Total Acesnot gradableOver 6.5Estimated chance60%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Both players average around 2 double faults per match, making under 4.5 slightly more likely.
- Osaka last15 double faults per match: 2.3
- Zakharova last15 double faults per match: 1.9
- Combined average: 4.2 double faults per match
BetBugs · Total Double Faultsnot gradableUnder 4.5Estimated chance55%

Markets to Avoid

High-risk markets where price or context leaves too little cushion.

Zakharova's recent losses to players ranked outside the top 100 and Osaka's dominant serve make this a trap for value seekers.

Prediction history

Naomi Osaka has been highly reliable when projected to win

Naomi Osaka has fulfilled 14 of 15 recent win projections, a 93% success rate. Her average estimated probability was 66.5%, yet she won 14 matches, exceeding the expected 10 fulfilled predictions. The only miss came against Karolina Muchova at 58% probability, while her matched predictions averaged 67.1%.

Recent evidence for Naomi Osaka15 matches

Date / competitionMatch resultPredictedActualResult

31 Jul·WTA Washington

#71Elisabetta Cocciaretto1-2#13Naomi Osaka

BetBugsNaomi Osaka to win·72%

Matched

31 Jul 2026

WTA Washington

#71Elisabetta Cocciaretto1-2#13Naomi Osaka

Naomi Osaka to win

72%probability

Naomi Osaka won

Matched

30 Jul·WTA Washington

#67Ashlyn Krueger0-2#13Naomi Osaka

BetBugsNaomi Osaka to win·62%

Matched

30 Jul 2026

WTA Washington

#67Ashlyn Krueger0-2#13Naomi Osaka

Naomi Osaka to win

62%probability

Naomi Osaka won

Matched

3 Jul·WTA Wimbledon

#65Daria Kasatkina0-2#14Naomi Osaka

BetBugsNaomi Osaka to win·62%

Matched

3 Jul 2026

WTA Wimbledon

#65Daria Kasatkina0-2#14Naomi Osaka

Naomi Osaka to win

62%probability

Naomi Osaka won

Matched

1 Jul·WTA Wimbledon

#225Anastasia Gasanova0-2#14Naomi Osaka

BetBugsNaomi Osaka to win·85%

Matched

1 Jul 2026

WTA Wimbledon

#225Anastasia Gasanova0-2#14Naomi Osaka

Naomi Osaka to win

85%probability

Naomi Osaka won

Matched

29 Jun·WTA Wimbledon

#82Elsa Jacquemot0-2#15Naomi Osaka

BetBugsNaomi Osaka to win·78%

Matched

29 Jun 2026

WTA Wimbledon

#82Elsa Jacquemot0-2#15Naomi Osaka

Naomi Osaka to win

78%probability

Naomi Osaka won

Matched

Naomi Osaka

11W 4L

4-6 7-6(5) 6-4#2Elena Rybakina

6-4 6-4#32Leylah Annie Fernandez

6-1 6-2#24Elise Mertens

6-2 6-4#76Panna Udvardy

6-4 6-2#18Alexandra Eala

4-6 6-4 6-3#66Elisabetta Cocciaretto

6-3 3-1 ret.#62Ashlyn Krueger

7-6(4) 6-4#7Karolina Muchova

6-2 7-6(2)#1Aryna Sabalenka

6-1 6-3#59Daria Kasatkina

6-3 6-2#192Anastasia Gasanova

6-1 7-5#113Elsa Jacquemot

6-1 1-0 ret.#7Karolina Muchova

6-3 6-3#41Xinyu Wang

6-2 6-2#19Ekaterina Alexandrova

Anastasia Zakharova

10W 5L

6-4 6-3#407Kylie Collins

7-6(6) 6-0#94Anna Blinkova

6-4 6-2#119Lucrezia Stefanini

3-6 6-3 6-1#77Hanne Vandewinkel

6-2 6-1#244Katrina Scott

7-5 6-2#263Ayana Akli

6-4 6-4#264Fiona Crawley

6-1 6-4#163Tatiana Prozorova

6-4 6-0#71Renata Zarazua

6-4 6-3#58Maria Camila Osorio Serrano

7-6(6) 6-1#174Linda Fruhvirtova

6-3 6-3#77Hanne Vandewinkel

6-3 6-3#163Tatiana Prozorova

7-6(6) 7-6(2)#190Alexandra Shubladze

6-4 3-6 6-4#721Mariia Tkacheva

Stat Battle

Last 15 match performance, compared side by side.

NONaomi OsakaOsaka

Last 15

6–3

9 core stats · 0 even

Anastasia ZakharovaZakharovaAZ

Naomi Osaka carries the stronger recent form — Anastasia Zakharova's route runs through serve.

Serve · 3–2

1st Serve In57.0%+17.2pp74.2%

1st Serve Won74.6%+15.0pp59.6%

2nd Serve Won54.5%+5.8pp48.7%

Aces / Match6.7+6.10.6

Double Faults / Match2.30.4 fewer1.9

Return · 0–1

Return Pts Won42.7%+5.7pp48.4%

Pressure · 2–0

Break Pts Converted48.5%+4.4pp44.1%

Break Pts Saved61.7%+9.3pp52.4%

Points · 1–0

Total Pts Won54.3%+1.9pp52.4%

Serve · 3–2

57.0%1st Serve In+17.2pp74.2%

74.6%1st Serve Won+15.0pp59.6%

54.5%2nd Serve Won+5.8pp48.7%

6.7Aces / Match+6.10.6

2.3Double Faults / Match0.4 fewer1.9

Return · 0–1

42.7%Return Pts Won+5.7pp48.4%

Pressure · 2–0

48.5%Break Pts Converted+4.4pp44.1%

61.7%Break Pts Saved+9.3pp52.4%

Points · 1–0

54.3%Total Pts Won+1.9pp52.4%

Naomi Osaka

Anastasia Zakharova

Quick Take

Context

BetBugs edges

Naomi Osaka

Naomi Osaka

Naomi Osaka

Under 2.5

Under 20.5

Naomi Osaka -4.5

Under 9.5

Under 9.5

Result1 of 1 landed

Games0 of 4 landed

Sets3 of 3 landed

Match stats0 of 1 landed

Markets to Avoid

Anastasia Zakharova @ 8.00

Naomi Osaka

Anastasia Zakharova

Stat Battle