Michael King's 2.31 ERA and Luis Medina's 52.0% changeup whiff rate form one of the cleaner pitching matchups on the Sunday slate — yet the total is still sitting at 8, a number that projects nearly a full run above what these profiles and Petco Park's 0.92 run factor support. The matchup points one way; the posted number does not fully reflect it.
Athletics vs. San Diego Padres MLB Betting Preview
The series finale at Petco Park features one of the better pitching matchups you'll find on a Sunday afternoon slate. Michael King takes the hill for San Diego against Luis Medina, and the total is posted at 8 — a number that projects to 7.9 combined runs, already slightly inflated. The under is priced at -122, which tells you the market has already noticed the pitching quality here. The question isn't whether the number is high — it isn't, by much — it's whether the edge is large enough to beat that juice.
The Padres moneyline at -162 is off the board from a betting standpoint — that kind of price requires a near-certain edge that simply doesn't exist in a sport where even the best starter loses 35% of his starts. The run line is equally uninviting: the projected margin is only 0.3 runs (4.1 vs. 3.8), making the San Diego Padres -1.5 (+130) an unjustifiable play regardless of the plus-money price — the separation is far too razor-thin to hang a cover bet on. The under is the cleanest expression of what this matchup signals, and that's where the value lives on Sunday.
Game Information & Betting Odds
- Matchup: Athletics (Away) vs. San Diego Padres (Home)
- Date: Sunday, May 24, 2026
- Time: 4:10 PM ET
- Location: Petco Park, San Diego, CA
- TV: MLB.TV, Padres.TV, NBC Sports CA
- Moneyline: Athletics +136 / San Diego Padres -162
- Run Line: San Diego Padres -1.5 (+130) / Athletics +1.5 (-160)
- Over/Under: 8 (Over +100 / Under -122)
- Probable Starters: Luis Medina (Athletics) vs. Michael King (Padres)
- Athletics Record: 26-26 (AL West) | Last 10: 4-6 | Run Diff: -10
- San Diego Padres Record: 31-20 (NL West) | Last 10: 7-3 | Run Diff: +9
The Pitching Matchup
Start with Michael King, because his numbers demand it. Through 58.1 innings — a sample large enough to treat as real — King carries a 2.31 ERA and a 1.06 WHIP with 59 strikeouts against 24 walks. That 9.1 K/9 rate reflects genuine swing-and-miss ability, and his Statcast arsenal backs it up. His changeup sits at 86.3 mph and generates a 28.8% whiff rate, while his sweeper at 81.8 mph posts a 27.5% whiff rate — both function as reliable secondary weapons that keep hitters honest and off his plus fastball. His 4-seam sits at 94.0 mph with a 25.9% whiff rate, and his sinker at 92.6 mph anchors his ground-ball profile. King doesn't just miss bats — he controls counts and limits barrels, holding a 2.13 WAR through the first two months of the season.
The concern is Oakland's middle-of-order production. Shea Langeliers (.314/.951) posts an xwOBA of .467 with a 9.3% barrel rate — he's hit .444 across 10 plate appearances against King, and those batted ball numbers suggest he squares King up at a higher rate than most. Nick Kurtz (.281/.932) carries a .497 xwOBA and an 8.4% barrel rate, though he posts a significantly lower .297 xwOBA against left-handed pitching — King throws right-handed, so that platoon split isn't particularly helpful here. These aren't lineup spots King can coast through.
Luis Medina is the less certain half of this equation. His 2.41 ERA and 1.18 WHIP across 18.2 innings look legitimate on the surface, and he's allowed only one home run, but 18.2 IP is a small canvas. What the Statcast arsenal does show is genuinely encouraging: his sinker averages 97.2 mph at 34.5% usage, and his 4-seam matches at 97.1 mph. The real weapons are his secondaries — the changeup at 89.3 mph generates a 52.0% whiff rate with an elite xwOBA against of just .150, and his slider at 87.6 mph posts a 50.0% whiff rate. Those are two genuinely elite put-away pitches for a power arm. Against the San Diego lineup — which bats .219/.658, the second-lowest OPS in the National League — Medina's heavy fastball profile plays up. That .219/.658 mark is a Padres-specific figure and speaks directly to how poorly San Diego's own offense has produced this season. Fernando Tatis Jr. owns a .404 xwOBA overall, but just a .000 batting average across two plate appearances against Medina. Small sample, but directionally fine for a road start.
The park factor matters here more than usual. Petco Park runs a 0.92 run factor, actively suppressing scoring on both sides. Saturday's game went 2-0 — a hard under — and Friday's 7-3 final was the outlier in what's otherwise been a pitching-heavy series. Both offenses enter Sunday cold: each club has scored only a handful of runs across the last three games combined in this series.
The bullpen situation adds another layer of concern for the A's. Oakland's relievers walked six batters in just 2.1 innings in Saturday's game — a volatility signal that, if Medina exits early, could turn a clean game into a messy one fast.
Prediction
The game script here reads low-scoring from the first pitch. King is the most reliable arm on the board today, and Medina's profile — high velo, elite whiff rates on both his changeup and slider — sets up well against San Diego's .658 OPS offense. The projected total of 7.9 sits just under the 8-run line, Petco Park shaves another fraction off expected scoring, and Saturday's 2-0 result is a recent data point that confirms the conditions favor pitching. The run line is dead money given the near-coin-flip projected margin. The moneyline price is too steep. The under at -122 is the number that makes sense.
Bet: Total Under 8 (-122) — 2 Units