Padres vs Rays Prediction, August 28, 2026 | Padres team total under 3.5
Casey Mize vs Shane McClanahan at Tropicana Field
Published August 28, 2026 · MLB Prediction Data Lab
A team total of 3.5 is a one-side problem. The model is asking whether Shane McClanahan can hold Padres under that number for nine innings, with the park and the opposing staff rate doing the rest of the work.
Full slate: MLB picks today, August 28, 2026.
The listed matchup
San Diego Padres (72–62) at Tampa Bay Rays (79–54), Tropicana Field, St. Petersburg. Casey Mize, a right-hander, is listed for the visitors. Shane McClanahan, a left-hander, is listed for the home club. Void the play if either listed starter is scratched.
| Side | Listed starter | Record | Park |
|---|---|---|---|
| Padres | Casey Mize | 72–62 | Tropicana Field |
| Rays | Shane McClanahan | 79–54 | Dome, artificial turf |
The two starters, measured per batter faced
Rate statistics expressed per nine innings reward pitchers who work deep. Expressing them as a share of batters faced removes that distortion. Casey Mize has faced 421 hitters. Shane McClanahan has faced 443.
| Starter | BF | K% | BB% | K−BB | K/BB | Pitches/BF |
|---|---|---|---|---|---|---|
| Casey Mize | 421 | 22.6 | 6.2 | 16.4 | 3.65 | 3.83 |
| Shane McClanahan | 443 | 22.3 | 8.1 | 14.2 | 2.75 | 3.79 |
| Starter | W-L | ERA | IP | WHIP | K/9 | BB/9 | HR/9 | Opp AVG |
|---|---|---|---|---|---|---|---|---|
| Casey Mize (R) | 5-7 | 3.44 | 104.2 | 1.09 | 8.17 | 2.24 | 0.86 | .227 |
| Shane McClanahan (L) | 9-6 | 3.10 | 107.1 | 1.12 | 8.30 | 3.02 | 0.67 | .209 |
Casey Mize sits at a 3.44 ERA with a 1.09 WHIP and 26 walks in 104.2 innings. Shane McClanahan sits at a 3.10 ERA with a 1.12 WHIP and 36 walks in 107.1 innings. Walks stabilize faster than earned runs, so the walk column is the more trustworthy August reading.
Direction inside the season
Season aggregates hide the last month. These are the prior starts, excluding today's outing so the table does not leak a result into a published prediction.
| Casey Mize — last starts | IP | ER | K | BB | H | HR | Pitches |
|---|---|---|---|---|---|---|---|
| 2026-07-25 | 6.0 | 1 | 3 | — | 3 | — | 85 |
| 2026-08-05 | 3.1 | 8 | 1 | 3 | 9 | 1 | 77 |
| 2026-08-10 | 6.0 | 2 | 6 | 2 | 5 | 1 | 83 |
| 2026-08-16 | 6.0 | 0 | 3 | 1 | 3 | — | 86 |
| 2026-08-22 | 2.2 | 4 | — | 1 | 4 | 3 | 47 |
| Shane McClanahan — last starts | IP | ER | K | BB | H | HR | Pitches |
|---|---|---|---|---|---|---|---|
| 2026-07-19 | 5.0 | 5 | 3 | 3 | 5 | 1 | 87 |
| 2026-07-24 | 5.0 | 1 | 3 | 2 | 2 | — | 71 |
| 2026-07-30 | 3.0 | 1 | 3 | 2 | — | — | 49 |
| 2026-08-17 | 3.1 | 3 | 3 | — | 4 | 1 | 57 |
| 2026-08-22 | 5.0 | 0 | 5 | 1 | 4 | — | 74 |
The run environment, before the starters
Padres have scored 569 runs in 134 games (4.25 per game) with a .703 OPS. Rays have scored 595 in 133 (4.47) with a .731 OPS. The pitching staffs have allowed 4.12 and 4.12 runs per game.
| Club | Record | R/G | OPS | Staff ERA | Staff WHIP | RA/G |
|---|---|---|---|---|---|---|
| Padres | 72–62 | 4.25 | .703 | 3.94 | 1.29 | 4.12 |
| Rays | 79–54 | 4.47 | .731 | 3.78 | 1.15 | 4.12 |
Reassembling the buckets
Casey Mize averages 5.23 innings per start. Shane McClanahan averages 4.88. Weight each starter's own earned run average across that length, then hand the remainder of the nine innings to his club's season staff rate. That is a conservative relief proxy — it mixes rotation and bullpen — and it is stated as a limitation, not hidden.
| Side | Starter IP | Starter ERA | Relief IP | Staff ERA | Projected ER |
|---|---|---|---|---|---|
| Padres (Casey Mize) | 5.23 | 3.44 | 3.77 | 3.94 | 3.65 |
| Rays (Shane McClanahan) | 4.88 | 3.10 | 4.12 | 3.78 | 3.41 |
| Combined | 7.06 |
A combined 7.06 projected earned runs against a 3.5 total. Unearned runs are ignored. Neither starter hits his average length every night. The opposing lineups are not in the formula; they sit in the table above.
The park
Tropicana Field is listed at 315 feet to left, 410 feet to left center, 404 feet to center, 404 feet to right center, 322 feet to right, on artificial turf, dome at 15 feet above sea level with a listed capacity of 25,025. Park dimensions do not decide a total by themselves. They decide whether a walk plus a ball in the air becomes two runs or a long out.
Where this reading is weakest
Team totals this tight have no cushion. A single homer plus a walk and a double is the whole bet.
What would falsify it
An early exit from the opposing starter, or a three-run inning before the fifth, breaks a 3.5 team total. The number is small enough that one cluster inning does it.
The position
San Diego Padres Team Total Under 3.5 at -118, 1.5 units. A price of -118 implies a 54.1% break-even. Grade it against this published number. If a listed starter is scratched, the play is void.
- Tampa Bay Rays Moneyline -130 · 1u
- San Diego Padres Team Total Under 3.5 -118 · 1.5u
Who is on the mound?
Casey Mize for Padres. Shane McClanahan for Rays. Those names come from the MLB probable-pitcher feed, not from a guessed rotation.
Why use batters-faced rates instead of ERA?
Earned run average is a counting result. Strikeout and walk rates as a share of batters faced describe the process that produced it, and they stabilize on a smaller sample. Casey Mize at 16.4 points of K−BB separation versus Shane McClanahan at 14.2 is the comparison ERA hides.
How is the pick graded?
Against the published price, on the public record. Pending is not a win. Today's full card lives at a stable URL: mlb-picks.html.
Pick, odds, and unit size come from the BetLegend daily tracker. Probable starters, season rates, and venue facts are from the MLB Stats API. Educational analysis. 18+ only. 1-800-GAMBLER.