MLB matchup analysis

Athletics vs Rays Prediction, Odds and Model Pick

Thursday, September 17, 2026 at Tropicana Field · 1:10 PM ET

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Leo prediction: Tampa Bay Rays moneyline

Lab Rating
7.4/10
Model lean
Rays 73.6%
Market probability
Not available
Model edge
Not available
Best moneyline
Not available
Sportsbooks checked
0

The case for Tampa Bay Rays

Starting pitcher edge: 37 points
Leo gives Drew Rasmussen a 37-point edge over Jeffrey Springs, driven mainly by HR/9 (0.76 vs 2.15) and ERA (2.72 vs 6.18).

The case for Athletics

The case is thin
The model finds little going Athletics's way — it trails on the pitching plan, bullpen, and recent form. The main path to a Athletics win is variance.

Why it is not official

Own bullpen carries risk: 7.4/10
The Tampa Bay Rays bullpen comes in tired. A lead after six innings is less safe than usual.

Why the setup score is what it is

Conviction: 9.29/10
Leo's win probability for Tampa Bay Rays (73.6%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 40/40
Drew Rasmussen rates 81 on Leo's pitcher score, judged on its own merits (50-80 is the credited range). That is a strong start on its own, and it earns most or all of the available credit here.
Offense: 25.17/50
Tampa Bay Rays's recent offensive form clearly outpaces Athletics's over the tracked windows.

Why the price is what it is

Team strength: 62.5%
Before any pitcher or bullpen adjustment, Leo's team-strength model alone makes Tampa Bay Rays 62.5% to win. Everything below moves the price from this starting point.
Pitcher score gap: 37 points
The pitcher-score gap favors Tampa Bay Rays by 37 points. This is the biggest single mover of the price -- a large gap moves it a lot, a small gap barely moves it.
Bullpen adjustment: +0.03
The bullpen-fatigue gap between the two pens nudges the price toward Tampa Bay Rays. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 62.5% -> 73.6%
Team strength alone had Tampa Bay Rays at 62.5%. After the pitcher and bullpen terms, the price is 73.6% -- the same number shown as Model Lean above.
The verdict Worth monitoring, nothing more. The setup has pieces but does not add up to a bet at today's price.
Read the full model output

Tampa Bay Rays remains on the watchlist. Lab Rating 7.4/10: conviction 9.29, pitching plan 40, offense 25.17. Market pricing was unavailable. Tampa Bay Rays owns the starting pitcher edge by 37 points. Bullpen read: Elevated volatility. Tampa Bay Rays's pen efficiency: Average (5.1/10). Bullpen fatigue moved this probability down 23.5 points from 97.1% (starting pitcher and team strength only) to 73.6%. Lineup check: Tampa Bay Rays is near its season form (+0.005 OPS); Athletics is near its season form (+0.006 OPS).

Final result

Athletics 1, Rays 10

How the analysis held up

Tampa Bay Rays won, the side Leo's model favored.

Drew Rasmussen (Tampa Bay Rays), the starter Leo's pitcher score favored, actually outpitched Jeffrey Springs: 5.0 IP, 0 ER (0.00 ERA) against 3.1 IP, 6 ER (16.20 ERA). The edge held up.

The Athletics bullpen was flagged as elevated risk pregame (High risk). In relief it actually allowed 2 earned runs over 4.2 innings (3.86 ERA) — the risk read did not show up on the scoreboard tonight. Note: 2 of the runs charged to the Athletics pitching staff overall were unearned — not something the bullpen's stuff should be blamed for.

The Tampa Bay Rays bullpen was flagged as elevated risk pregame (Tired). In relief it actually allowed 1 earned run over 4.0 innings (2.25 ERA) — the risk read did not show up on the scoreboard tonight.

Game information

MatchupAthletics at Tampa Bay Rays
DateThursday, September 17, 2026
First pitch1:10 PM ET
VenueTropicana Field
Starting pitchersJeffrey Springs vs Drew Rasmussen
WeatherGame-time forecast: 84°F, 0% precipitation chance, 8 mph wind from E.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Jeffrey SpringsAthletics · LHP
vs
Drew RasmussenRays · RHP
MetricAthleticsRays
Pitching planTraditional starterTraditional starter
Expected innings55⅔
ThrowsLR
Leo pitcher score (higher is better)4481
ERA (lower is better)6.182.72
WHIP (lower is better)1.470.93
K/9 (higher is better)7.18.9
K-BB% (higher is better)8.7%20.8%
K% (higher is better)17.8%25.3%
BB% (lower is better)9.2%4.5%
BB/9 (lower is better)3.61.6
HR/9 (lower is better)2.10.8
Ground-ball rate40.9%50.0%
Fly-ball rate59.1%50.0%

Pitcher edge: Leo gives Drew Rasmussen a 37-point edge over Jeffrey Springs, driven mainly by HR/9 (0.76 vs 2.15) and ERA (2.72 vs 6.18).

How to read this: the scorecards above name the starters; every number lives in this table.

Strikeout Projections Full strikeout projections →

Jeffrey Springs strikeouts
2.8 Leo projected Ks
No strikeout line posted when this page was generated
Drew Rasmussen strikeouts
5.0 Leo projected Ks
No K play · +0.5K difference is below Leo's 0.7K threshold
Market 4.5K · O +145 / U -195 · 1 book

Same data source as the Pitcher Matchup Tool, where every starter on the slate is compared side by side.

Athletics are 5-5 in their last 10 and averaging 4.1 runs per game over the last 15 days; Rays are 8-2 in their last 10 and averaging 5.0 runs per game over the last 15 days. On the season Rays carry the better run differential per game (+0.53 against -1.40).

MetricAthleticsRays
Last 105-58-2
Last 10 by venue (away team on the road, home team at home)4-6 on the road8-2 at home
OPS, last 15 days0.7250.739
wOBA, last 15 days (hot/cold read)0.3190.323
Runs per game, last 15 days4.15.0
K% last 15 days (lower is better)22.2%18.0%

Last 15 days only. Hot and cold streaks for all 30 teams live on the Stats page.

30-day offense

Full offense tool →
Last 30 daysAthleticsRays
OPS0.704 (-0.015 vs szn)0.709 (-0.026 vs szn)
Runs per game4.14 (-0.177 vs szn)4.71 (+0.122 vs szn)
wOBA (model offense input)0.3130.312 (-0.012 vs szn)
K% (lower is better)22.3%16.7% (-1.7% vs szn)

Over the last 30 days the Athletics have been the better offense, 0.313 wOBA to 0.312.

Season profile

Full Stats page →
MetricAthleticsRays
Record61-9192-59
Run differential / game (team quality)-1.40+0.53
Runs scored / game (offense, season)4.324.59
Runs allowed / game (defense, season, lower better)5.724.07
Season OPS0.7190.734
K% season (lower is better)22.5%18.4%
OPS vs opposing hand (season)0.7190.687

Season-long team quality, not recent form. Run differential and run environment come from the season standings; splits for all 30 teams live on the Stats page, including the run environment table.

Every team on today's slate, on any two axes you pick. Athletics and Rays are highlighted.

Athletics
Combined risk
8.4 High risk
Fatigue
7.1 Tired
Efficiency
2.4 Struggling
Rays
Combined risk
7.4 Tired
Fatigue
7.4 Tired
Efficiency
5.1 Average

Risk is what the model actually uses: fatigue blended with how well the pen has pitched. High fatigue with high efficiency is a tired pen that is still getting outs.

MetricAthleticsRays
Fatigue7.1/10, Tired7.4/10, Tired
Efficiency2.4/10, Struggling5.1/10, Average
Combined risk8.4/10, High risk7.4/10, Tired
Relief innings, last 7 days26.018.7
Back-to-back arms46
7-day ERA7.274.34
7-day WHIP1.811.18

Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.

Run total projection

Full Totals Projections →
Leo projection
9.8
Market total
9.5
Projected away runs
3.2
Projected home runs
5.8
Over price
+115
Under price
-116
Athletics team total
3.2 projected
Line 0.5 · O -150 / U +146
Over research lean (+2.7)
Tampa Bay Rays team total
5.8 projected
Line 7.5 · O +130 / U -130
Under research lean (-1.7)

The model and market are close. Team totals remain research-only until their graded sample is established.

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