Astros vs Rays Prediction, September 11, 2026 | Rays moneyline
Miguel Ullola vs Drew Rasmussen at Tropicana Field
Published September 11, 2026 · MLB Prediction Data Lab
The moneyline on Rays at -166 is a run-prevention bet first. Miguel Ullola projects 4.12 earned runs allowed across a 5.50-inning start plus relief; Drew Rasmussen projects 3.22. The side that prevents more does not have to outslug anyone.
This is the largest stake on today's card. The other unders the same night load on the same run-environment factor; size the card as one bet, not seven independent shots. Full board: MLB picks today.
The listed matchup
Houston Astros (75–72) at Tampa Bay Rays (87–59), Tropicana Field, St. Petersburg. Miguel Ullola, a right-hander, is listed for the visitors. Drew Rasmussen, a right-hander, is listed for the home club. Void the play if either listed starter is scratched.
| Side | Listed starter | Record | Park |
|---|---|---|---|
| Astros | Miguel Ullola | 75–72 | Tropicana Field |
| Rays | Drew Rasmussen | 87–59 | 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. Miguel Ullola has faced 27 hitters. Drew Rasmussen has faced 598.
| Starter | BF | K% | BB% | K−BB | K/BB | Pitches/BF |
|---|---|---|---|---|---|---|
| Miguel Ullola | 27 | 37.0 | 3.7 | 33.3 | 10.00 | 3.93 |
| Drew Rasmussen | 598 | 26.1 | 4.5 | 21.6 | 5.78 | 3.98 |
| Starter | W-L | ERA | IP | WHIP | K/9 | BB/9 | HR/9 | Opp AVG |
|---|---|---|---|---|---|---|---|---|
| Miguel Ullola (R) | —-— | 3.86 | 7.0 | 0.86 | 12.86 | 1.29 | 2.57 | .192 |
| Drew Rasmussen (R) | 14-5 | 2.88 | 153.1 | 0.91 | 9.16 | 1.58 | 0.82 | .200 |
Miguel Ullola sits at a 3.86 ERA with a 0.86 WHIP and 1 walks in 7.0 innings. Drew Rasmussen sits at a 2.88 ERA with a 0.91 WHIP and 27 walks in 153.1 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.
| Miguel Ullola — last starts | IP | ER | K | BB | H | HR | Pitches |
|---|---|---|---|---|---|---|---|
| 2026-06-29 | 2.0 | 0 | 4 | — | 2 | — | 30 |
| 2026-07-01 | 2.0 | 0 | 3 | — | — | — | 23 |
| 2026-07-26 | 1.0 | 3 | — | 1 | 2 | 2 | 24 |
| 2026-08-18 | 1.0 | 0 | 2 | — | — | — | 11 |
| 2026-09-06 | 1.0 | 0 | 1 | — | 1 | — | 18 |
| Drew Rasmussen — last starts | IP | ER | K | BB | H | HR | Pitches |
|---|---|---|---|---|---|---|---|
| 2026-08-12 | 5.0 | 2 | 3 | 1 | 4 | — | 84 |
| 2026-08-19 | 5.0 | 5 | 5 | 2 | 7 | 1 | 86 |
| 2026-08-24 | 6.0 | 1 | 5 | — | 3 | — | 103 |
| 2026-08-30 | 6.0 | 2 | 6 | 2 | 4 | — | 97 |
| 2026-09-05 | 7.0 | 1 | 7 | — | 3 | 1 | 97 |
The run environment, before the starters
Astros have scored 662 runs in 147 games (4.50 per game) with a .725 OPS. Rays have scored 662 in 146 (4.53) with a .733 OPS. The pitching staffs have allowed 4.78 and 4.15 runs per game.
| Club | Record | R/G | OPS | Staff ERA | Staff WHIP | RA/G |
|---|---|---|---|---|---|---|
| Astros | 75–72 | 4.50 | .725 | 4.52 | 1.35 | 4.78 |
| Rays | 87–59 | 4.53 | .733 | 3.81 | 1.15 | 4.15 |
Reassembling the buckets
Miguel Ullola averages 5.50 innings per start. Drew Rasmussen averages 5.68. 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 |
|---|---|---|---|---|---|
| Astros (Miguel Ullola) | 5.50 | 3.86 | 3.50 | 4.52 | 4.12 |
| Rays (Drew Rasmussen) | 5.68 | 2.88 | 3.32 | 3.81 | 3.22 |
| Combined | 7.34 |
A combined 7.34 projected earned runs. 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
Moneyline edges this thin die when the length assumption fails. If the better starter is out in the fourth, the staff rate takes over and the partition no longer applies.
What would falsify it
A short outing from the starter on the backed side, or a crooked inning against the relief bucket that the partition treats as average, is the miss. The model is only as good as the length assumption of 5.50 and 5.68 innings.
The position
Tampa Bay Rays ML at -166, 2 units. A price of -166 implies a 62.4% break-even. Grade it against this published number. If a listed starter is scratched, the play is void.
- Tampa Bay Rays ML -166 · 2u
Who is on the mound?
Miguel Ullola for Astros. Drew Rasmussen 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. Miguel Ullola at 33.3 points of K−BB separation versus Drew Rasmussen at 21.6 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.