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Predictions graded

Sofia Costoulas #157Belgium2Ayla Aksu #214Türkiye0

Sets 7-5 · 6-2Sun 19 Jul 2026, 13:22 Predictions gradedQ3Hard

Predictions2–529%

Edges2–340%

Player Profiles

Ranking advantageSofia Costoulas · 57 places

Sofia Costoulas

Belgium

Reached a career-high No. 134 on 2026-03-30. ITF lists hard as her preferred surface. The 21-year-old Belgian has spent 2026 moving through WTA and WTA 125 qualifying-level events.

Current ranking: #157
Peak ranking: #134 · 2026
Current age: 21
Preferred surface: Hard
Hand: Right handed
Height: —

Ayla Aksu

Türkiye

Aksu turned 30 on 15 July 2026 and is listed at a career-high-equalling No. 214. The reviewed public sources confirm her age, ranking, hand and height, but did not provide a reliable preferred-surface listing.

Current ranking: #214
Peak ranking: #214 · 2017
Current age: 30
Preferred surface: —
Hand: Right handed
Height: 170 cm

Quick Take

Pre-match view

Context last updated 18 Jul 2026, 22:58 · Europe/Bucharest

Costoulas is the slight favorite based on ranking and H2H, but Aksu’s fresher state and superior recent hard-court form level the playing field.

The best betting angles are Aksu +3.5 games and over 21.5 total games, as the match is likely to be close and extend beyond the total.

Context

Costoulas played a three-set match on 18 July lasting 2 hours 10 minutes.
- Aksu won in straight sets on the same day, spending less time on court.
- Short turnaround between qualifying rounds increases fatigue risk for Costoulas.
Aksu retired against Elena Micic on 27 June with the score 3-6, 6-2 ret.
- She returned to competition on 18 July and won in straight sets without visible issues.
- No further injury concerns have been reported since her return.
Aksu's last 10 hard-court matches: 7 wins, 3 losses.
- Costoulas' last 15 matches include only 2 on hard courts, with 1 win and 1 loss.
- Aksu's hard-court wins include a victory over a top-120 player (Alina Charaeva).

BetBugs edges

Compare BetBugs' chances with the market's.

Positive edges · 4

BetBugs probabilities

How likely BetBugs thought each outcome was.

Result1 of 1 landed

Signal quality Medium · Uncertainty band Slight lean · Market price 1.70
The read
Costoulas holds a slight edge due to H2H success and a higher ranking (157 vs 214), though Aksu's recent hard-court form is stronger; the match is likely close.
- Costoulas leads H2H 2-1, including a 7-5 7-6(4) win on clay in April 2026.
- Costoulas has a 50% win rate on hard courts in last 15 matches (1-1), while Aksu has 70% (7-3) but against weaker opposition.
- Costoulas' last 5 matches: 3-2, with wins over Hibino (rank 235) and losses to top-50 Valentova; Aksu's last 5: 3-2, with wins over lower-ranked players.
BetBugs · Match WinnerwonSofia CostoulasEstimated chance55%

Games0 of 2 landed

Signal quality Medium · Uncertainty band Strong lean · Market price 1.91
The read
Aksu is unlikely to lose by more than 3.5 games given the competitive H2H and her solid hard-court form, making the +3.5 handicap a strong play.
- Aksu's last 5 hard-court matches: average game differential +2.4 in wins, -4.0 in losses.
- Costoulas' last 5 matches: average game differential +1.2 in wins, -4.5 in losses.
- H2H matches have been close: 7-5 7-6, 6-3 6-1, 6-2 1-6 6-3.
BetBugs · Game HandicaplostAyla Aksu +3.5Estimated chance65%
Signal quality Medium · Uncertainty band Lean · Market price 1.80
The read
The H2H trend and both players' recent match lengths suggest a competitive match likely exceeding 21.5 games.
- Two of three H2H matches went over 21.5 games (22 and 23 games).
- Costoulas' last 5 matches averaged 22.6 games, Aksu's averaged 20.4.
- Both players have high break-point conversion rates (Costoulas 50.4%, Aksu 50.8% in last 15), leading to longer sets.
BetBugs · Total GameslostOver 21.5Estimated chance60%

Sets1 of 1 landed

Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Costoulas has a slight historical edge in first sets against Aksu, but Aksu's strong hard-court first-set stats make this a marginal call.
- Costoulas won the first set in 2 of 3 H2H matches.
- Costoulas' first-set win rate in last 15 matches is 53% (8/15), Aksu's is 60% (9/15).
- Aksu has a higher first-set win rate on hard courts (70% in last 10) but Costoulas' recent three-setter shows resilience.
BetBugs · Set 1 WinnerwonSofia CostoulasEstimated chance52%

Match stats0 of 0 landed

Signal quality Medium · Uncertainty band Slight lean · Not priced
The read
Both players have high double-fault rates, especially Aksu, making over 7.5 double faults likely in a potentially long match.
- Costoulas averages 3.8 double faults per match in last 15, Aksu 4.5.
- H2H: Aksu had 12 double faults in 3 matches, Costoulas 5.
- Hard-court double fault rates: Costoulas 5.0, Aksu 4.0 in last 15.
BetBugs · Total Double FaultsOver 7.5Estimated chance55%

Head-to-Head

2-1 (3 meetings)

W7-5 7-6(4)Sofia Costoulas#157vAyla Aksu#214Apr 28, 2026

L6-3 6-1Sofia Costoulas#157vAyla Aksu#214Nov 15, 2025

W6-2 1-6 6-3Sofia Costoulas#157vAyla Aksu#214Aug 30, 2025

3 total meetings

Sofia Costoulas

7W 8L

6-7(4) 7-5 6-4#235Nao Hibino

6-1 6-2#49Tereza Valentova

7-5 6-4#178Storm Hunter

1-6 2-3 ret.#423Tatiana Pieri

6-4 2-6 6-3#442Sapfo Sakellaridi

3-6 6-0 7-6(5)#533Nadia Podoroska

6-0 6-3#242Justina Mikulskyte

6-3 6-4#162Hanyu Guo

6-4 6-3#202Mai Hontama

6-0 6-2#843Tereza Mrdeza

2-6 5-5 ret.#266Mia Ristic

6-4 6-1#108Moyuka Uchijima

4-6 7-6(1) 6-1#110Leolia Jeanjean

7-5 7-6(4)#214Ayla Aksu

6-2 6-3#201Elena Pridankina

Ayla Aksu

9W 6L

6-3 6-3#300Viktoria Morvayova

7-5 6-0#206Vendula Valdmannova

3-6 6-2 ret.#302Elena Micic

6-2 7-6(1)#474Anna Kubareva

6-4 4-6 7-5#754Celia Cervino Ruiz

6-3 7-6(2)—Esther Lopez Alcaraz

6-2 6-3#104Darja Vidmanova

6-3 6-7(5) 7-6(4)#118Alina Charaeva

7-5 1-6 6-4#129Jeline Vandromme

6-2 6-2#305Ana Sofia Sanchez

6-4 4-6 6-3#393Lucija Ciric Bagaric

4-6 6-1 6-1—Kali Supova

6-3 7-5#228Polona Hercog

2-6 6-3 6-0—Dora Miskovic

6-4 6-1#196Elizara Yaneva

Stat Battle

Last 15 match performance, compared side by side.

SCSofia CostoulasCostoulas

Last 15

4–3

9 core stats · 2 even

Ayla AksuAksuAA

Sofia Costoulas carries the stronger recent form — Ayla Aksu's route runs through serve.

Serve · 4–1

1st Serve In59.4%+9.7pp69.1%

1st Serve Won65.6%+6.1pp59.5%

2nd Serve Won44.6%+1.5pp43.1%

Aces / Match3.4+2.31.1

Double Faults / Match3.80.7 fewer4.5

Return · 0–1

Return Pts Won45.5%+0.8pp46.3%

Pressure · 0–1 · 1 even

Break Pts Converted50.4%—50.8%

Break Pts Saved51.3%+4.7pp56.0%

Points · 0–0 · 1 even

Total Pts Won51.2%—50.5%

Serve · 4–1

59.4%1st Serve In+9.7pp69.1%

65.6%1st Serve Won+6.1pp59.5%

44.6%2nd Serve Won+1.5pp43.1%

3.4Aces / Match+2.31.1

3.8Double Faults / Match0.7 fewer4.5

Return · 0–1

45.5%Return Pts Won+0.8pp46.3%

Pressure · 0–1 · 1 even

50.4%Break Pts Converted—50.8%

51.3%Break Pts Saved+4.7pp56.0%

Points · 0–0 · 1 even

51.2%Total Pts Won—50.5%