TennisEdge's AI model finds no betting value in J. Sinner vs J. Brooksby (Wimbledon on 2026-07-03) — the market is efficient, with J. Sinner favoured at 1.01.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | J. Sinner | J. Brooksby |
|---|---|---|
| Elo ratings-based, surface-weighted |
86.1% | 13.9% |
| Machine learning 29-feature gradient-boosted model |
87.4% | 12.6% |
| Serve / return point-by-point simulation |
89.9% | 10.1% |
| Blend what the bot actually prices off |
89.3% | 10.7% |
| Market implied de-vigged from the opening odds |
92.8% | 7.2% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| J. Sinner | hard | 2299 | 219–45 | 264 |
| J. Brooksby | hard | 1729 | 86–55 | 141 |
Our own ratings, computed from match results since 2018. Players with fewer than 5 rated matches are omitted rather than shown at a provisional starting value. Last updated March 29, 2026.
J. Sinner leads 2–0 over 2 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| July 3, 2026 | Wimbledon | grass | J. Sinner | 3 - 0 |
| Aug. 7, 2021 | Washington | hard | J. Sinner | 2 - 0 |
| W | A. Zverev | 3 - 1 | July 12, 2026 |
| W | N. Djokovic | 3 - 0 | July 10, 2026 |
| W | J-L. Struff | 3 - 0 | July 7, 2026 |
| W | S. Mochizuki | 3 - 0 | July 5, 2026 |
| W | J. Brooksby | 3 - 0 | July 3, 2026 |
All July 3, 2026 results & picks →
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J. Sinner vs J. Brooksby — Wimbledon (grass) 1/16-finals
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MODELS
ELO prob A : 0.861
ML prob A : 0.874
Serve/Return A : 0.899
Model prob A : 0.893 (B 0.107)
Market implied A : 0.928 (B devig 0.072) | odds A 1.01 / B 13.0
Value pick : B edge +3.5% (post-shrink) | ensemble mutual-agreement, 0.25-Kelly → 0.8u
FORM (last 90d)
SINNER: Clay dominator — Rome champion (d. Ruud/Medvedev/Rublev), Madrid champion
(d. Zverev 6-1 6-2, Fils, Norrie). On GRASS, though, wobbly:
W vs Borges (1618) 7-6 7-6 6-4 → GRIND (two TBs)
W vs Kecmanovic (1567) 4-6 6-3 6-7 6-2 6-3 → GRIND, full 5 sets vs Avg opp
W vs Norrie (exo)
L vs Cerundolo (1818) French Open R64 (retired-look 5-setter). Grass = GRIND, not DOM.
BROOKSBY: Decent grass run vs weak/avg field —
W vs Buse (1585) 6-2 6-2 6-3 → DOM (Weak)
W vs Vukic (1641) 7-6 6-1 6-1 → DOM-ish (Avg)
W vs Vukic (1667) 7-5 6-1 ; W vs Damm (1708) 3 sets
L vs Humbert (1730), L vs F.Cerundolo (1563) 0-6 4-6
Clay was ugly (L Navone/Molcan/Baez/Nava). No win vs anyone near Sinner's tier.
FATIGUE (14d)
Sinner : 3 matches, 9 sets, ~402 court-min, last 07-01 (2d)
Brooksby: 5 matches, 15 sets, ~416 court-min, back-to-back run, last 07-01 (2d)
Court-time ~equal (14min); Brooksby heavier match/set load. Slight edge Sinner on freshness.
NARRATIVE
TITLE: Rome Final won 47d ago (clay) — no let-down window (long past).
Venue: both 2-0 this Wimbledon; venue amplifies, doesn't create edge.
Signal: Sinner's grass results are GRIND-heavy vs sub-1650 opponents → not razor-sharp.
But he still WON every grass match — wobble = dropped sets, NOT match-loss risk.
VERDICT — LEAN (no bet)
Internal models flag a thin +3.5% value on Brooksby @13.0, and Sinner's GRIND-y
grass form is a genuine wobble. But class gap is enormous: Brooksby has zero wins
vs anyone remotely Sinner's tier and got out-classed by journeymen on clay. The
"value" is a fragile devig artifact at extreme longshot odds where margin estimation
is unreliable. Backing Sinner @1.01 is dead money. Acknowledge B value, decline to fire.
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