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Predictions graded

Teodora Kostovic #150Serbia2Polina Iatcenko #160Russia0

Sets 7-5 · 7-5Sat 26 Sept 2026, 10:41 Predictions gradedSemi-FinalHard

Predictions8–373%

Edges6–0100%

Player Profiles

Ranking advantageTeodora Kostovic · 10 places

Teodora Kostovic

Serbia

Serbian right-hander born 28 June 2007. Her recorded career-high ranking is No. 146, reached in July 2026; no reliable preferred-surface statement was found.

Current ranking: #150
Peak ranking: #146 · 2026
Current age: 19
Preferred surface: —
Hand: Right handed
Height: 176 cm

Polina Iatcenko

Russia

Reached a reported career-best singles ranking of No. 153 in February 2026. An ITF junior media guide listed clay as her favourite surface.

Current ranking: #160
Peak ranking: #153 · 2026
Current age: 22
Preferred surface: Clay
Hand: Right handed
Height: —

Quick Take

Pre-match view

Context last updated 25 Sep 2026, 15:26 · Europe/Bucharest

Two in-form seeds meet for a place in the Ankara final: Kostovic has not dropped a set in three matches here, while Iatcenko has also won three, one of them in three sets.

Iatcenko's hard-court matches stay close, which is the likeliest shape of this one, and her 4.5-game start at 1.45 is the only reviewed price that holds up. The straight win prices do not.

Context

Kostovic has conceded only 13 games across her three Ankara matches, and the 6-0 opening set against Fangran Tian shows her closing a quarterfinal out quickly rather than letting the score drift. A straight-set route on hard court leaves her with a lighter recent workload than Iatcenko, who needed three sets in her opening match. The counterpoint is the standard of opposition: Bertea, Ansari and Tian are all ranked outside the top 200, so this run does not yet show how she handles an opponent of Iatcenko's standing.
- Quarterfinal win over Fangran Tian 6-0, 7-5 in Ankara .
- Earlier Ankara wins over Elena Ruxandra Bertea 6-3, 6-1 in the round of 16 and Carolyn Ansari 6-3, 6-1 .
- No sets dropped across the three matches, all on hard court.
ConfirmedSources checked 25 Sep 2026, 15:23 · Europe/BucharestTennis Majorswww.tennismajors.com · 25 Sep 2026
Iatcenko has spent more time on court than Kostovic in Ankara, with a first-set loss to Viktoria Hruncakova forcing a deciding set in her opening match. She answered that with two straight-set wins, including a 6-3, 6-2 quarterfinal, so the extra games have not carried into slower later rounds. The weaker part of the evidence is the calibre of those wins, because Falkowska came through qualifying and Zaytseva entered the main draw as a lucky loser.
- First Ankara win over Viktoria Hruncakova 4-6, 6-3, 6-3 .
- Round-of-16 win over Weronika Falkowska 6-3, 6-4 .
- Quarterfinal win over Ksenia Zaytseva 6-3, 6-2 .
ConfirmedSources checked 25 Sep 2026, 15:23 · Europe/BucharestTennis Majorswww.tennismajors.com · 25 Sep 2026
The US Open run in late August and early September is the strongest hard-court evidence in Iatcenko's recent record: three qualifying wins followed by a third-set tiebreak in the main draw, all inside the past month. That sequence matters here because it was compiled at a higher level than the 125 event staging this semifinal, and the first-round win came against an opponent ranked inside the top 100. The limitation is what followed, because the Sabalenka defeat was a 6-1, 6-1 loss in under an hour, so the milestone rests on one narrow escape rather than sustained form against top opposition.
- Won three qualifying matches to reach the 2026 US Open main draw.
- First-round win over Renata Zarazua 4-6, 6-4, 7-6(7); second-round defeat to Aryna Sabalenka 6-1, 6-1.
- A 53-minute second-round match, the shortest of her main-draw run.
ConfirmedSources checked 25 Sep 2026, 15:23 · Europe/Bucharest
Iatcenko's first serve has held up at 69.6% of points won, so the drop-off behind it is the part of her game opponents can attack.
A serve that wins fewer than half its second-serve points gives the returner a look at most service games, and 5.5 double faults a match add free points on top. It does not settle anything by itself, because the first serve has been reliable enough to keep her in front of most returners in this sample.
- 14 tracked matches: 44.3% of second-serve points won (175 of 395).
- 5.5 double faults per match across 14 matches, 77 in total.
- First-serve points won: 69.6% (392 of 563) in the same 14-match sample.

BetBugs edges

Compare BetBugs' chances with the market's.

Positive edges · 1

Other edges · 5

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

Total SetswonUncertainty band: Lean

Under 2.5

1.50fair 1.67

BetBugs 60% · Market 66.7%

−6.7ppshort

Most matches for both players have ended in two sets, and Kostovic has been untroubled so far this week.

Match WinnerwonUncertainty band: Lean

Teodora Kostovic

1.65fair 1.72

BetBugs 58% · Market 60.6%

−2.6ppshort

Kostovic has the steadier serve and return numbers on hard and has won every set she has played in Ankara.

Set 1 WinnerwonUncertainty band: Slight lean

Teodora Kostovic

1.65fair 1.79

BetBugs 56% · Market 60.6%

−4.6ppshort

Kostovic has started strongly on hard and has taken the opening set in every round here.

Total GameswonUncertainty band: Slight lean

Over 20.5

1.75fair 1.89

BetBugs 53% · Market 57.1%

−4.1ppshort

Their hard-court matches have generally landed around or above this line, and Iatcenko's three-set matches have pushed totals past it.

Set BettingwonUncertainty band: Near coin-flip

Teodora Kostovic 2-0

2.40fair 2.44

BetBugs 41% · Market 41.7%

−0.7ppshort

Kostovic has won every hard-court match in this window in straight sets and has not dropped a set here.

BetBugs probabilities

How likely BetBugs thought each outcome was.

Result1 of 1 landed

Signal quality Medium · Uncertainty band Lean · Market price 1.65
The read
Kostovic has the steadier serve and return numbers on hard and has won every set she has played in Ankara.
- Hard-court window: 5-3 with 58.6% of games won (95-67).
- On hard she wins 70.5% of first-serve and 54.4% of second-serve points, with 3.4 double faults per match.
- Three straight-set wins in Ankara without dropping a set, the latest 6-0 7-5.
BetBugs · Match WinnerwonTeodora KostovicEstimated chance58%

Games2 of 5 landed

Signal quality Medium · Uncertainty band Strong lean · Market price 1.45
The read
Iatcenko has stayed within a handful of games in nearly every hard-court match in the window, and the cushion covers almost all of them.
- Iatcenko's hard-court games are 143-134, a margin of +0.7 per match.
- Her three Ankara wins were all within 7 games.
- Only one of her 13 hard-court matches, the Sabalenka defeat, fell outside this margin.
BetBugs · Game HandicapwonPolina Iatcenko +4.5Estimated chance71%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Second sets have been shorter than first sets for both players on this surface.
- Second sets average 8.88 games (Kostovic) and 8.77 (Iatcenko) on hard.
- No second-set tiebreaks in either hard-court sample.
- Kostovic's set-2 games won average is 5.63, lost 3.25.
BetBugs · Set 2 Total GameslostUnder 9.5Estimated chance57%
Signal quality Medium · Uncertainty band Slight lean · Market price 1.75
The read
Their hard-court matches have generally landed around or above this line, and Iatcenko's three-set matches have pushed totals past it.
- Kostovic's hard-court matches average 20.25 total games, Iatcenko's 21.3.
- Iatcenko's three Ankara matches totalled 17, 19 and 28 games.
- The two are separated by 19 ranking places.
BetBugs · Total GameswonOver 20.5Estimated chance53%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Their opening sets have averaged under ten games combined and first-set tiebreaks have been rare.
- First sets average 9.25 games (Kostovic) and 9.46 (Iatcenko) on hard.
- One first-set tiebreak each in those samples.
- Kostovic's last three opening sets ended with seven or fewer games.
BetBugs · Set 1 Total GameslostUnder 9.5Estimated chance53%
Signal quality Low · Uncertainty band Near coin-flip · Not priced
The read
Iatcenko has kept almost every hard-court match within a few games, so a three-game cushion covers most of her recent results.
- Iatcenko's hard-court games are 143-134, a margin of +0.7 per match.
- Her three Ankara wins came by +7, +5 and +4 games.
- She has lost only 5 of 13 hard-court matches in the window.
BetBugs · Game HandicaplostPolina Iatcenko +2.5Estimated chance51%

Sets3 of 3 landed

Signal quality Medium · Uncertainty band Lean · Market price 1.50
The read
Most matches for both players have ended in two sets, and Kostovic has been untroubled so far this week.
- 15 of the 21 combined hard-court matches finished in two sets.
- Kostovic's three-set rate on hard is 2 of 8, Iatcenko's 4 of 13.
- Kostovic has dropped no sets in three Ankara rounds.
BetBugs · Total SetswonUnder 2.5Estimated chance60%
Signal quality Medium · Uncertainty band Slight lean · Market price 1.65
The read
Kostovic has started strongly on hard and has taken the opening set in every round here.
- Won the first set in 6 of 8 hard-court matches.
- Won five of her last six hard-court first sets, including all three in Ankara.
- She wins 70.5% of first-serve points on this surface.
BetBugs · Set 1 WinnerwonTeodora KostovicEstimated chance56%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Kostovic has the stronger second-set record on hard and has not lost one in Ankara.
- Hard-court second-set record 6-2.
- Set-2 games average 5.63 won and 3.25 lost.
BetBugs · Set 2 WinnerwonTeodora KostovicEstimated chance54%

Match stats1 of 1 landed

Signal quality Medium · Uncertainty band Strong lean · Not priced
The read
Both players have usually settled sets before 6-6, and tiebreaks have been rare in their recent hard-court matches.
- One first-set tiebreak in Kostovic's 8 hard-court matches and two tiebreak matches in Iatcenko's 13.
- Their first sets average 9.25 and 9.46 games, just under a tiebreak set.
BetBugs · Tiebreak in MatchwonNoEstimated chance72%
Signal quality Medium · Uncertainty band Slight lean · Not priced
The read
Their combined double-fault average is above the line, driven by Iatcenko's high rate over a substantial sample.
- Iatcenko averages 5.4 double faults per hard-court match, Kostovic 3.4.
- Iatcenko made 65 double faults in 12 hard-court matches in the window.
- The combined average is 8.8 per match.
BetBugs · Total Double Faultsnot gradableOver 8.5Estimated chance54%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
The total depends mainly on Kostovic, whose own hard-court average is below the line.
- Iatcenko averages 1.7 aces per hard-court match.
- Kostovic's 5.1 per match alone is below the line.
- Kostovic collected 36 aces in 7 hard-court matches, Iatcenko 20 in 12.
BetBugs · Total Acesnot gradableUnder 6.5Estimated chance52%

Previous match context available

Teodora Kostovic

11W 4L

6-0 7-5#260Fangran Tian 6-3 6-1#282Elena Ruxandra Bertea

6-3 6-1#248Carolyn Ansari

6-3 6-4#90Kaitlin Quevedo

6-4 6-1#122Darja Semenistaja

6-2 6-4#818Victoria Luiza Barros

4-6 6-4 6-4#253Arantxa Rus

7-6(3) 2-6 6-1#165Martyna Kubka

6-4 6-0#240Vivian Wolff

6-3 7-6(5)#161Anna Siskova

6-2 6-4#410Julie Pastikova

6-4 6-4#772Kali Supova

6-4 6-0#889Arabella Koller

6-4 6-4#130Lucia Bronzetti

6-2 6-3#231Jennifer Ruggeri

Polina Iatcenko

9W 6L

6-3 6-2#442Ksenia Zaytseva

6-3 6-4#310Weronika Falkowska 4-6 6-3 6-3#209Viktoria Hruncakova

6-1 6-1#2Aryna Sabalenka

4-6 6-4 7-6(7)#92Renata Zarazua

7-5 6-1#136Andrea Lazaro Garcia

6-2 3-6 6-3#130Lucia Bronzetti

6-2 6-1#225Julie Struplova

6-4 6-2#96Claire Liu

6-7(6) 6-1 6-3#204Caroline Dolehide

6-2 7-5#186Iryna Shymanovich

6-4 6-2#261Julieta Pareja

6-3 7-5#290Vera Zvonareva

7-6(8) 6-1#71Ashlyn Krueger

7-6(7) 6-2#234Zhuoxuan Bai

Stat Battle

Last 15 match performance, compared side by side.

TKTeodora KostovicKostovic

Last 15

7–1

9 core stats · 1 even

Polina IatcenkoIatcenkoPI

Teodora Kostovic carries the stronger recent form — Polina Iatcenko's route runs through serve.

Serve · 3–1 · 1 even

1st Serve In14/15 · 14/1559.1%—58.8%

1st Serve Won14/15 · 14/1568.5%+1.1pp69.6%

2nd Serve Won14/15 · 14/1552.0%+7.7pp44.3%

Aces / Match14/15 · 14/154.1+2.21.9

Double Faults / Match14/15 · 14/152.92.6 fewer5.5

Return · 1–0

Return Pts Won14/15 · 14/1546.8%+6.0pp40.8%

Pressure · 2–0

Break Pts Converted14/15 · 14/1550.9%+7.4pp43.5%

Break Pts Saved14/15 · 14/1564.4%+13.9pp50.5%

Points · 1–0

Total Pts Won14/15 · 14/1554.1%+4.2pp49.9%

Serve · 3–1 · 1 even

59.1%1st Serve In14/15 · 14/15—58.8%

68.5%1st Serve Won14/15 · 14/15+1.1pp69.6%

52.0%2nd Serve Won14/15 · 14/15+7.7pp44.3%

4.1Aces / Match14/15 · 14/15+2.21.9

2.9Double Faults / Match14/15 · 14/152.6 fewer5.5

Return · 1–0

46.8%Return Pts Won14/15 · 14/15+6.0pp40.8%

Pressure · 2–0

50.9%Break Pts Converted14/15 · 14/15+7.4pp43.5%

64.4%Break Pts Saved14/15 · 14/15+13.9pp50.5%

Points · 1–0

54.1%Total Pts Won14/15 · 14/15+4.2pp49.9%

Teodora Kostovic

Polina Iatcenko

Quick Take

Context

BetBugs edges

Polina Iatcenko +4.5

Under 2.5

Teodora Kostovic

Teodora Kostovic

Over 20.5

Teodora Kostovic 2-0

Result1 of 1 landed

Games2 of 5 landed

Sets3 of 3 landed

Match stats1 of 1 landed

Teodora Kostovic

Polina Iatcenko

Stat Battle