TennisEdge's AI model finds no betting value in J. Choinski vs J. De Jong (Estoril on 2026-07-20) — the market is efficient, with J. De Jong favoured at 1.72.
═══ Choinski vs De Jong — Estoril (clay), 1/16-finals ═══
MODELS
ELO: 50.0% A | ML: 38.4% A (61.6% B) | Ensemble: 50.0% A
Book: A 2.10 / B 1.72 | Betfair: A 2.14 / B 1.84 (eff 2.083 / 1.798)
Market implied (exchange, comm-adj): A 48.0% / B 55.6%
RECENT FORM
Choinski (A) — last 5:
07-14 Bastad R32 L vs Basilashvili (1653 Strong) — GRIND (TB set)
07-12 Braunschweig F W vs Gaston (1664 Strong) — 3-set title win
07-11 Braunschweig SF W vs Rincon (1682 Strong)
07-10 Braunschweig QF W vs Dedura (1688 Strong) — DOM
07-08 Braunschweig R16 W vs Rehberg (1618 Avg) — GRIND (3 sets)
De Jong (B) — last 5:
07-16 Bastad R16 L vs Baez (1757 Strong) — straight sets
07-13 Bastad R32 W vs Gaubas (1643 Avg) — GRIND (TB)
07-01 Wimbledon R64 L vs Fonseca (1633 Avg)
06-30 Wimbledon R128 W vs Hijikata (1724 Strong) — 5-set GRIND
06-16 Parma R32 L vs Djere (1822 Elite)
FATIGUE
Choinski: 6 matches / 18 sets / 753 court-min in 14d, 3 back-to-backs, last 07-14
De Jong: 2 matches / 6 sets / 232 court-min in 14d, 0 back-to-backs, last 07-16
→ 521-min court-time gap: Choinski heavily disadvantaged.
NARRATIVE
Title recency A: Braunschweig 8d ago (clay) — live clay form, but bought with a brutal
6-matches-in-8-days run; post-title dip already showed (TB loss to Basilashvili next start).
Let-down window (0-7d) expired. No Estoril history for either player.
VERDICT
Direction is De Jong: ML (61.6% B) leans past the market and the fatigue read validates
it — Choinski's tank is the story. But B at Betfair 1.84 → effective 1.798 → implied
55.6%; my read ~58% B gives only ~2-3% comm-adjusted edge, under the 5% bar
(min odds 1.81 vs 1.84 raw — razor thin). De Jong's own form is shaky (lost 2 of 3,
best wins at quali/Challenger level), capping conviction.
Alt markets: A +1.5 @1.89 / B -1.5 @2.02 — sim spread is only 0.5 games, no cover edge
either side at the 1.5 line. Total 22.5: model 51/49 vs over 1.91 / under 2.02 — both
negative after commission. No stakeable market → LEAN De Jong, no bet.