MLB Slate — 2026-08-21

Predictions for every game on 2026-08-21 (ET)

Matchup (home in bold)SP (away vs. home)SP adj (Elo, away/home)PickWin probExp. runs (winner first)Exp. total
Reds @ DiamondbacksNick Lodolo vs. Eduardo Rodriguez+5.4 / +6.6Diamondbacks59%4.8–4.18.9
Rays @ OriolesFreddy Peralta vs. Trevor Rogers-4.8 / +10.6Orioles52%4.6–4.59.0
Giants @ Red SoxLogan Webb vs. Sonny Gray+18.1 / +10.9Red Sox63%5.0–3.88.8
Mets @ White SoxSean Manaea vs. Sean Burke+4.4 / +11.0White Sox55%4.6–4.28.8
Guardians @ RockiesJoey Cantillo vs. Tanner Gordon-6.0 / -0.5Guardians55%5.1–4.29.3
Athletics @ AstrosJ.T. Ginn vs. Hayden Wesneski+21.2 / +7.9Astros61%5.3–4.39.6
Tigers @ RoyalsTroy Melton vs. Noah Cameron+20.7 / +10.7Tigers55%4.9–4.19.0
Pirates @ DodgersBubba Chandler vs. Yoshinobu Yamamoto+2.2 / +24.8Dodgers64%5.2–3.99.1
Nationals @ MarlinsBrad Lord vs. Ryan Gusto-6.5 / -24.2Marlins54%4.6–4.49.0
Braves @ BrewersChris Sale vs. Jacob Misiorowski+26.2 / +33.1Brewers60%4.7–3.98.7
Blue Jays @ YankeesTBD vs. Cam Schlittler+0.0 / +13.9Yankees61%4.5–3.68.1
Cardinals @ PhilliesTBD vs. Jesús Luzardo+0.0 / +7.3Phillies59%4.8–4.18.8
Twins @ PadresConnor Prielipp vs. TBD-4.7 / +0.0Padres60%4.8–4.08.9
Cubs @ MarinersMatthew Boyd vs. Emerson Hancock+8.2 / +4.3Cubs55%5.0–4.19.1
Angels @ RangersReid Detmers vs. MacKenzie Gore-0.5 / -0.1Rangers58%4.5–3.98.4

Starter identity IS a model input: each probable's rolling game score (exponentially weighted, 20-start half-life) is compared to his team's staff average and the difference enters the team's Elo at 3.0 points per game-score point (the SP adj column, so the effect is auditable per game). Rookies/thin history fall back to a shrunk staff rating; TBD uses the staff rating. Rest and travel add up to a few Elo points each. Win probability from Elo (+24 home advantage). Expected total is matchup-specific: each club's recent runs scored/allowed (exponentially weighted, ~20-game half-life, shrunk to league average) sets the run environment, and the Elo-implied margin is carved out of it. Expected runs are shown at one decimal; read them as averages, not a literal final score.

Betting-blind Elo model (K=3, +24 home, MOV-weighted, 60% season carryover) · Can Tre Beat Vegas · whosyurgoat.app/vegas/mlb