TennisEdge's AI model finds no betting value in S. Costoulas vs A. Aksu (Livesport Prague Open on 2026-07-19) — the market is efficient, with S. Costoulas favoured at 1.50.
═══ S. Costoulas vs A. Aksu — Livesport Prague Open (clay, Final) ═══
MODELS vs MARKET
Odds: A 1.50 (impl 62.5%) | B 2.50 (impl 40.0%)
ELO 60.6% A | ML 54.7% A | Blend 59.3% A
Value pick: B, edge ~3.2% — driven almost entirely by the ML model; ELO and blend sit near market.
RECENT FORM (last 5 shown)
Costoulas (A):
07-18 Prague SF W vs Hibino (1501, Avg) 6-7 7-5 6-4 GRIND
07-14 Athens Q L vs Valentova (1500) 6-1 6-2 blowout
06-23 Wimbledon QF L vs Hunter (1606, Strong)
06-03 Foggia L vs Pieri (1368, Weak)
06-01 Foggia W vs Sakellaridi (1348, Weak) 3 sets
Aksu (B):
07-18 Prague SF W vs Morvayova (1222, Weak) straight sets
07-14 Istanbul2 Q L vs Valdmannova (1500) 5-7 0-6 blowout
06-27 Palma SF L vs Micic (1460, Weak)
06-26 Palma QF W vs Kubareva (1460) TB GRIND
06-25 Palma R16 W vs Cervino Ruiz (1356) 3-set GRIND
Read: neither in sharp form entering the week — both blown out in qualies 4-5 days ago. Costoulas beat the tougher SF opponent; Aksu's final run came through a Weak draw.
FATIGUE
A: 2 matches/7d, 6 sets, 216 min court time, 3-set grind yesterday
B: 2 matches/7d, 6 sets, 150 min court time, easy straight-setter yesterday
Diff 66 min > 60 → slight fatigue disadvantage to Costoulas (the favorite).
NARRATIVE
Let-down: none in window (Costoulas FO junior final loss 59d ago; Aksu Figueira qual final loss 28d ago).
Title recency: Aksu — TITLE: Saint Malo 83d ago (clay). Stale.
Venue: both 1-0 at Prague (this event only).
H2H: Costoulas beat Aksu 7-5 7-6 on clay (Saint Malo, April) — tight but favors A.
VERDICT: PASS
The B edge is thin (~3.2%) and rests on one model (ML); ELO agrees with the market. Qualitative read is mixed: fatigue mildly favors Aksu, but the H2H on surface favors Costoulas, Aksu's final run came through a 1222-ELO semifinal, and her level vs Avg/Strong clay opposition in May was poor. A thin, one-model edge without clean qualitative validation is a pass.