MLB matchup analysis

Guardians vs Rays Prediction, Odds and Model Pick

Tuesday, October 13, 2026 at Tropicana Field · 8:00 PM ET

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Official Pick

Leo prediction: Cleveland Guardians moneyline

Lab Rating
9.6/10
Model lean
Guardians 72.0%
Market probability
45.1%
Model edge
+26.9%
Best moneyline
+117
Sportsbooks checked
9
Leo model
72.0%
Market
45.1%

The case for Cleveland Guardians

Starting pitcher edge: 20 points
Leo gives Parker Messick a 20-point edge over Freddy Peralta, driven mainly by ERA (2.56 vs 4.42) and K-BB% (19.3% vs 12.7%).

The case for Tampa Bay Rays

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

What to watch

Own bullpen carries risk: 6.5/10
The Cleveland Guardians bullpen comes in tired. A lead after six innings is less safe than usual.

Why the setup score is what it is

Conviction: 8.48/10
Leo's win probability for Cleveland Guardians (72.0%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 40/40
Parker Messick rates 80 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: 47.71/50
Cleveland Guardians's recent offensive form clearly outpaces Tampa Bay Rays's over the tracked windows.

Why the price is what it is

Team strength: 59.6%
Before any pitcher or bullpen adjustment, Leo's team-strength model alone makes Cleveland Guardians 59.6% to win. Everything below moves the price from this starting point.
Pitcher score gap: 20 points
The pitcher-score gap favors Cleveland Guardians by 20 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: -0.033
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: 59.6% -> 72.0%
Team strength alone had Cleveland Guardians at 59.6%. After the pitcher and bullpen terms, the price is 72.0% -- the same number shown as Model Lean above.
The verdict Leo backs Cleveland Guardians at +117. 72.0% to win against a market implying 45.1% - the model sees value and the setup clears every gate.
Read the full model output

Cleveland Guardians is an official moneyline pick because it clears both gates: 72.0% model win probability and 9.6/10 Lab Rating. Leo projects 72.0% against a 45.1% no-vig market number, a 26.9% model edge at +117. Cleveland Guardians owns the starting pitcher edge by 20 points. Bullpen read: Elevated volatility. Cleveland Guardians's pen efficiency: Effective (6.3/10).

Final result

Guardians 1, Rays 3

How the analysis held up

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

Parker Messick (Cleveland Guardians), the starter Leo's pitcher score favored, actually outpitched Freddy Peralta: 5.0 IP, 0 ER (0.00 ERA) against 6.0 IP, 0 ER (0.00 ERA). The edge held up. Both starters were sharp; the edge is a narrow one between two good outings.

The Cleveland Guardians bullpen was not flagged pregame, but it had a night worth noting: 0 earned runs allowed over 3.0 relief innings (0.00 ERA) — quietly better than the pregame read implied. Note: 3 of the runs charged to the Cleveland Guardians pitching staff overall were unearned — not something the bullpen's stuff should be blamed for.

Cleveland Guardians scored 1, 5.9 fewer than the 6.9 pregame projection.

Likely driver: Cleveland Guardians's offense scored 5.9 fewer runs than projected, and the opposing starter (0.00 ERA) was sharp when the read expected an edge the other way.

Game information

MatchupCleveland Guardians at Tampa Bay Rays
DateTuesday, October 13, 2026
First pitch8:00 PM ET
VenueTropicana Field
Starting pitchersParker Messick vs Freddy Peralta
WeatherGame-time forecast: 78°F, 0% precipitation chance, 2 mph wind from N.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Parker MessickGuardians · LHP
vs
Freddy PeraltaRays · RHP
MetricGuardiansRays
Pitching planTraditional starterTraditional starter
Expected innings5⅔5⅓
ThrowsLR
Leo pitcher score (higher is better)8060
ERA (lower is better)2.564.42
WHIP (lower is better)1.061.33
K/9 (higher is better)9.38.3
K-BB% (higher is better)19.3%12.7%
K% (higher is better)25.8%21.4%
BB% (lower is better)6.6%8.6%
BB/9 (lower is better)2.43.4
HR/9 (lower is better)0.81.2
Ground-ball rate49.7%44.7%
Fly-ball rate50.3%55.3%

Pitcher edge: Leo gives Parker Messick a 20-point edge over Freddy Peralta, driven mainly by ERA (2.56 vs 4.42) and K-BB% (19.3% vs 12.7%).

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

Strikeout Projections Full strikeout projections →

Parker Messick strikeouts
4.5 Leo projected Ks
No K play · -0.0K difference is below Leo's 0.7K threshold
Market 4.5K · O +100 / U -114 · 6 books
Freddy Peralta strikeouts
4.0 Leo projected Ks
No K play · +0.5K difference is below Leo's 0.7K threshold
Market 3.5K · O -115 / U +105 · 6 books

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

Guardians are 8-2 in their last 10; Rays are 5-5 in their last 10. On the season Rays carry the better run differential per game (+0.53 against +0.07).

MetricGuardiansRays
Last 108-25-5
Last 10 by venue (away team on the road, home team at home)7-3 on the road8-2 at home
OPS, last 15 daysNot availableNot available
wOBA, last 15 days (hot/cold read)Not availableNot available
Runs per game, last 15 daysNot availableNot available
K% last 15 days (lower is better)Not availableNot available

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 daysGuardiansRays
OPS0.822 (+0.126 vs szn)0.681 (-0.047 vs szn)
Runs per game5.54 (+1.353 vs szn)4.86 (+0.314 vs szn)
wOBA (model offense input)0.357 (+0.048 vs szn)0.303 (-0.019 vs szn)
K% (lower is better)15.5% (-5.3% vs szn)22.9% (+4.2% vs szn)

Over the last 30 days the Guardians have been the better offense, 0.357 wOBA to 0.303. They are running hot against their own season line (+0.048 wOBA).

Season profile

Full Stats page →
MetricGuardiansRays
Record85-7798-64
Run differential / game (team quality)+0.07+0.53
Runs scored / game (offense, season)4.194.54
Runs allowed / game (defense, season, lower better)4.124.01
Season OPS0.6960.728
K% season (lower is better)20.8%18.8%
OPS vs opposing hand (season)0.7060.679

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.

Guardians
Combined risk
6.5 Tired
Fatigue
7.1 Tired
Efficiency
6.3 Effective
Rays
Combined risk
5.4 Normal
Fatigue
4.7 Normal
Efficiency
3.6 Below 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.

MetricGuardiansRays
Fatigue7.1/10, Tired4.7/10, Normal
Efficiency6.3/10, Effective3.6/10, Below average
Combined risk6.5/10, Tired5.4/10, Normal
Relief innings, last 7 days24.08.3
Back-to-back arms41
7-day ERA2.636.48
7-day WHIP1.041.32

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
9.7
Market total
6.5
Projected away runs
6.9
Projected home runs
2.4
Over price
-118
Under price
+108
Cleveland Guardians team total
6.9 projected
Line 3.5 · O +125 / U -145
Over research lean (+3.4)
Tampa Bay Rays team total
2.4 projected
Line 3.5 · O +105 / U -117
Under research lean (-1.1)

The model projects 3.2 runs above the market total. A research lean still requires a setup rating of at least 7.0/10. Team totals remain research-only until their graded sample is established.

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