MLB matchup analysis
Athletics vs Guardians Prediction, Odds and Model Pick
Sunday, September 20, 2026 at Progressive Field · 1:40 PM ET
Leo prediction: Cleveland Guardians moneyline
The case for Cleveland Guardians
The case for Athletics
Why it is not official
Why the setup score is what it is
Why the price is what it is
Read the full model output
Cleveland Guardians is a value watch, not an official pick. Leo projects 72.9% against a 69.5% no-vig market number, a 3.4% model edge at -245. Lab Rating 8.1/10: conviction 8.94, pitching plan 30.67, offense 41.73. Cleveland Guardians's pen efficiency: Effective (5.9/10). It stayed a value watch under the stricter official-pick review. Lineup check: Cleveland Guardians is swinging a hot bat (+0.073 OPS); Athletics is in a cold stretch (-0.109 OPS). Recent form supports this side and is included in the unified run projection.
Game information
| Matchup | Athletics at Cleveland Guardians |
|---|---|
| Date | Sunday, September 20, 2026 |
| First pitch | 1:40 PM ET |
| Venue | Progressive Field |
| Starting pitchers | Jack Perkins vs Gavin Williams |
| Weather | Game-time forecast: 68°F, 45% precipitation chance, 5 mph wind from NE. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | Athletics | Guardians |
|---|---|---|
| Pitching plan | Traditional starter | Traditional starter |
| Expected innings | 4⅔ | 5⅔ |
| Throws | R | R |
| Leo pitcher score (higher is better) | 47 | 73 |
| ERA (lower is better) | 6.14 | 3.78 |
| WHIP (lower is better) | 1.48 | 1.10 |
| K/9 (higher is better) | 10.4 | 12.2 |
| K-BB% (higher is better) | 15.9% | 25.4% |
| K% (higher is better) | 25.6% | 33.3% |
| BB% (lower is better) | 9.7% | 7.9% |
| BB/9 (lower is better) | 3.9 | 2.9 |
| HR/9 (lower is better) | 1.6 | 1.4 |
| Ground-ball rate | 42.1% | 50.0% |
| Fly-ball rate | 57.9% | 50.0% |
Pitcher edge: Leo gives Gavin Williams a 26-point edge over Jack Perkins, driven mainly by K-BB% (25.4% vs 15.9%) and ERA (3.78 vs 6.14).
How to read this: the scorecards above name the starters; every number lives in this table.
Strikeout Projections Full strikeout projections →
Same data source as the Pitcher Matchup Tool, where every starter on the slate is compared side by side.
Recent form
Full Stats page →Athletics are 3-7 in their last 10 and averaging 3.5 runs per game over the last 15 days; Guardians are 7-3 in their last 10 and averaging 5.5 runs per game over the last 15 days. On the season Guardians carry the better run differential per game (+0.01 against -1.43).
| Metric | Athletics | Guardians |
|---|---|---|
| Last 10 | 3-7 | 7-3 |
| Last 10 by venue (away team on the road, home team at home) | 4-6 on the road | 7-3 at home |
| OPS, last 15 days | 0.609 | 0.766 |
| wOBA, last 15 days (hot/cold read) | 0.272 | 0.337 |
| Runs per game, last 15 days | 3.5 | 5.5 |
| K% last 15 days (lower is better) | 21.4% | 17.0% |
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 days | Athletics | Guardians |
|---|---|---|
| OPS | 0.713 | 0.751 (+0.058 vs szn) |
| Runs per game | 4.19 (-0.137 vs szn) | 5.22 (+1.042 vs szn) |
| wOBA (model offense input) | 0.316 | 0.330 (+0.022 vs szn) |
| K% (lower is better) | 22.8% | 17.5% (-3.5% vs szn) |
Over the last 30 days the Guardians have been the better offense, 0.330 wOBA to 0.316. They are running hot against their own season line (+0.022 wOBA).
Season profile
Full Stats page →| Metric | Athletics | Guardians |
|---|---|---|
| Record | 61-94 | 80-75 |
| Run differential / game (team quality) | -1.43 | +0.01 |
| Runs scored / game (offense, season) | 4.32 | 4.18 |
| Runs allowed / game (defense, season, lower better) | 5.75 | 4.17 |
| Season OPS | 0.718 | 0.693 |
| K% season (lower is better) | 22.4% | 21.0% |
| OPS vs opposing hand (season) | 0.719 | 0.704 |
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.
The Map
Full interactive map →Every team on today's slate, on any two axes you pick. Athletics and Guardians are highlighted.
Bullpen matchup
Full Bullpen Fatigue Index →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.
| Metric | Athletics | Guardians |
|---|---|---|
| Fatigue | 7.6/10, Tired | 8.4/10, High risk |
| Efficiency | 5.8/10, Effective | 5.9/10, Effective |
| Combined risk | 7.2/10, Tired | 8.0/10, Tired |
| Relief innings, last 7 days | 26.7 | 27.7 |
| Back-to-back arms | 4 | 5 |
| 7-day ERA | 3.04 | 3.25 |
| 7-day WHIP | 1.20 | 1.05 |
Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.
Run total projection
Full Totals Projections →The model projects 1.8 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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