Who is predicted to win WSH vs BOS on June 30, 2026?

Based on 10,000 Pitch Sim v5.3 Monte Carlo simulations, WSH is favored with a 55.5% win probability. The simulation's mean projected score is BOS 5.0 - WSH 5.9.

How did WSH vs BOS on June 30, 2026 end?

Final score: BOS 1 - WSH 8. This page now shows our pre-game projection alongside the actual outcome for transparency — every Olympus Bets projection is preserved with its result.

How does Olympus Bets generate sports predictions?

Every projection is produced by a league-specific Monte Carlo simulation engine (10,000+ iterations per game), Platt-scaled and isotonic-calibrated against historical outcomes, then sized with the Kelly Criterion plus a 15% Bayesian probability shrinkage. The full methodology is documented at https://app.olympus-bets.com/methodology.

WSH vs BOS Prediction & Picks — June 30, 2026

WSH vs BOS prediction for June 30, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects BOS 5.0 - WSH 5.9. WSH is favored with a 55.5% win probability. The run line is -1.5 and the total is 9.5. Model projects 10.9 total runs.

BOS

5.0

Projected Score

VS O/U 9.5

WSH

5.9

Projected Score

Win Probability

44.5%

55.5%

BOSWSH

-1.5

Run Line (BOS)

9.5

Total Line

10,000

Simulations

☑ Calibrated accuracy at this confidence: 55.6% (2,559 games)

Projected Runs Range 10th – 90th percentile

WSH

468

BOS

357

Projected

BOS 5.0 — WSH 5.9

Actual

BOS 1 — WSH 8

Starting Pitcher Matchup

Cade Cavalli R

WSH

FF35%96 mph17% whiff

KC29%85 mph38% whiff

SI16%96 mph10% whiff

Connelly Early L

BOS

FF36%94 mph22% whiff

SI20%92 mph10% whiff

CH18%84 mph22% whiff

Weather Impact

Fenway Park

82°F12 mph wind

HR: 0.992 Total: 0.993

7mph in

Bullpen Comparison

WSH

4.62ERA

4.93FIP

7.77K/9

4.06BB/9

1.38WHIP

BOS

3.90ERA

4.18FIP

9.00K/9

3.45BB/9

1.30WHIP

Betting Edges

RUN_LINE AWAY +1.5

-25.7% EV

-182

RUN_LINE HOME -1.5

-18.9% EV

+150

F5_ML HOME

-18.1% EV

-123

ML HOME

-17.4% EV

-133

TOTAL UNDER 9.5

-16.4% EV

-122

ML AWAY

+13.0% EV

+114

First 5 Innings & NRFI

WSH F5

3.3 runs

49.8% win

BOS F5

2.8 runs

37.3% win

F5 Total

6.1

NRFI

48.0%

YRFI

52.0%

Avg 1st Inn Runs

1.24

HR Spotlight

Avg HRs

2.8

Over 0.5 HR

93%

Over 1.5 HR

75%

No HR

James Wood WSH30.0%

ISO: 0.228 | Barrel: 16.0% | vs Connelly Early | Park: 1.08x

Curtis Mead WSH30.0%

ISO: 0.230 | Barrel: 13.2% | vs Connelly Early | Park: 1.08x Platoon: 1.12x

Dylan Crews WSH30.0%

ISO: 0.174 | Barrel: 8.1% | vs Connelly Early | Park: 1.08x Platoon: 1.12x

Pitcher Strikeout Projections

Cade Cavalli

0.0 K projected

WSH | K/9: 0.0

Connelly Early

0.0 K projected

BOS | K/9: 0.0

Injury Report

WSH8 injured

Mitchell Parker RP15-DAY-IL

Richard Lovelady RP15-DAY-IL

Travis Sykora SPDAY-TO-DAY

Trevor Williams SP60-DAY-IL

Jake Irvin SP15-DAY-IL

DJ Herz SP60-DAY-IL

+2 more

BOS8 injured

Patrick Sandoval SP60-DAY-IL

Roman Anthony LF60-DAY-IL

Jovani Moran RP15-DAY-IL

Isiah Kiner-Falefa 2B10-DAY-IL

Marcelo Mayer 2B10-DAY-IL

Garrett Crochet SP60-DAY-IL

+2 more

AI Intelligence Analysis

LEAN +1YELLOW ZONE50.2% WR (n=5)

Cavalli (WSH, 4.32 Bayesian ERA, 8.0 K/9, B- 53%) vs Connelly Early (BOS, 3.88 Bayesian ERA, 8.0 K/9, B- 46.2%). Model favors WSH away at 52.8% (13.0% edge over -114 market). Early is slightly better ERA (3.88 vs 4.32) but both grade B-. ZONE: Away ML 13% edge is YELLOW (50.2% WR, n=5, small sample) but combo zone MLB|ml|any|away is RED (40.7% WR, n=82) — AWAY ML is historically money pit. CONFLICT: Model says WSH away +13% edge, but away ML zone is RED. SKIP CALIBRATION backs this: Away/underdog combos weak historically. RESOLUTION: This is margin call situation. Market -133 BOS implies 57.1% BOS, model says 47.2% BOS = 10pp gap in BOS favor. Cavalli (4.32 ERA) vs Early (3.88 ERA) = 0.44 ERA gap = ~2-3 wins better for Early over full season, not enough to justify 10pp market gap. LEAN on WSH away at +114 (0.5 units) despite away ML zone concerns. Fenway (0.992 HR mult, wind 12.4 mph in, 7.1 mph in-field) suppresses runs slightly.

Key Factors

Early (BOS, 3.88 ERA, 8.0 K/9) vs Cavalli (WSH, 4.32 ERA, 8.0 K/9) = 0.44 ERA gap (minimal, ~2-3% WP)
Market pricing BOS -133 (57.1% implied) vs model 47.2% = 10pp overvaluation of home field
Fenway wind blowing in (12.4 mph, 7.1 mph in) suppresses runs — totals edge for BOS
WSH offers +114 underdog value (model 52.8%, market 46.7%)

Risk Factors

AWAY ML historically RED zone (40.7% WR, n=82) — picking away dogs is money pit
Sharp money moving toward BOS (-133) against model — suggests sharp syndicates see BOS value
BOS bullpen adequate (3.9 ERA) vs WSH mediocre (4.62 ERA) — relief advantage BOS

Sharp MoneyAgainst ModelMarket repriced from opening (likely -115 BOS) to -133 BOS = 18pts toward favorite. Sharp action on BOS. Contradicts model lean on WSH.

AWAY ML RED ZONESHARP MONEY AGAINSTLINE MOVEMENT BOS FAVORITEUNDERDOG VALUE WEAK BUT PRESENTCAUTION ZONE

Edge Analysis

Moneyline

WSH 55.5%

-18.9 pts

Run Line