MLB matchup analysis
Mets vs Nationals Prediction, Odds and Model Pick
Sunday, September 27, 2026 at Nationals Park · 1:05 PM ET
Leo decision: Pass on Mets vs Nationals
The case for New York Mets
The case for Washington Nationals
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
The combined Lab Rating did not clear the official threshold.
Final result
Mets 4, Nationals 6
How the analysis held up
Washington Nationals won. Leo's model favored the other side.
DJ Herz (No clear pitching-plan edge) was Leo's favored starter by pitcher score, but Sean Manaea actually pitched better tonight: 6.0 IP, 5 ER (7.50 ERA) against 3.0 IP, 4 ER (12.00 ERA). The edge did not show up in this game. Both starters struggled; this was not a case of one clean outing beating one bad one.
The New York Mets bullpen was flagged as elevated risk pregame (Tired). In relief it actually allowed 1 earned run over 2.0 innings (4.50 ERA) — the risk read showed up.
The Washington Nationals bullpen was flagged as elevated risk pregame (High risk). In relief it actually allowed 0 earned runs over 6.0 innings (0.00 ERA) — the risk read did not show up on the scoreboard tonight.
Likely driver: Sean Manaea, the pick's own starter, was rocked for a 7.50 ERA, and the Washington Nationals bullpen quietly shut the game down (0.00 ERA over 6.0 innings).
Game information
| Matchup | New York Mets at Washington Nationals |
|---|---|
| Date | Sunday, September 27, 2026 |
| First pitch | 1:05 PM ET |
| Venue | Nationals Park |
| Starting pitchers | Sean Manaea vs DJ Herz |
| Weather | Game-time forecast: 61°F, 6% precipitation chance, 10 mph wind from NW. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | Mets | Nationals |
|---|---|---|
| Pitching plan | Traditional starter | Limited starter |
| Expected innings | 5⅔ | 3⅔ |
| Throws | L | L |
| Leo pitcher score (higher is better) | 60 | 27 |
| ERA (lower is better) | 4.78 | 10.29 |
| WHIP (lower is better) | 1.30 | 2.00 |
| K/9 (higher is better) | 8.6 | 7.7 |
| K-BB% (higher is better) | 15.3% | 8.6% |
| K% (higher is better) | 22.1% | 17.1% |
| BB% (lower is better) | 6.7% | 8.6% |
| BB/9 (lower is better) | 2.6 | 3.9 |
| HR/9 (lower is better) | 1.5 | 3.9 |
| Ground-ball rate | 44.4% | 40.0% |
| Fly-ball rate | 55.6% | 60.0% |
Pitching plan edge: Leo gives the Washington Nationals pitching plan the edge over Sean Manaea (3 points on Leo's pitcher score). DJ Herz is projected for only 3⅔ innings, with the Washington Nationals bullpen covering the rest -- this compares the Washington Nationals blended starting-pitcher-and-bullpen quality against Sean Manaea's own line, not two starters directly.
Blended read: For the Washington Nationals, the bullpen is projected to throw more of the game than DJ Herz (about 3⅔ innings for the starter), so Leo grades that side on a whole-game effective ERA of 4.29 rather than DJ Herz's own 10.29. Whole-game, that is 3.72 for the New York Mets against 4.29 on the other side, so the blended read leans New York Mets.
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 →Mets are 5-5 in their last 10 and averaging 4.5 runs per game over the last 15 days; Nationals are 6-4 in their last 10 and averaging 4.3 runs per game over the last 15 days. Season run differential separates them by almost nothing (-0.20 against +0.04).
| Metric | Mets | Nationals |
|---|---|---|
| Last 10 | 5-5 | 6-4 |
| Last 10 by venue (away team on the road, home team at home) | 5-5 on the road | 7-3 at home |
| OPS, last 15 days | 0.743 | 0.667 |
| wOBA, last 15 days (hot/cold read) | 0.324 | 0.293 |
| Runs per game, last 15 days | 4.5 | 4.3 |
| K% last 15 days (lower is better) | 20.7% | 21.0% |
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 | Mets | Nationals |
|---|---|---|
| OPS | 0.750 (+0.045 vs szn) | 0.675 (-0.069 vs szn) |
| Runs per game | 5.25 (+0.935 vs szn) | 4.50 (-0.568 vs szn) |
| wOBA (model offense input) | 0.328 (+0.017 vs szn) | 0.297 (-0.029 vs szn) |
| K% (lower is better) | 20.7% (-1.5% vs szn) | 23.0% (+1.2% vs szn) |
Over the last 30 days the Mets have been the better offense, 0.328 wOBA to 0.297. They are running hot against their own season line (+0.017 wOBA).
Season profile
Full Stats page →| Metric | Mets | Nationals |
|---|---|---|
| Record | 74-87 | 76-85 |
| Run differential / game (team quality) | -0.20 | +0.04 |
| Runs scored / game (offense, season) | 4.31 | 5.07 |
| Runs allowed / game (defense, season, lower better) | 4.51 | 5.03 |
| Season OPS | 0.706 | 0.743 |
| K% season (lower is better) | 22.3% | 21.8% |
| OPS vs opposing hand (season) | 0.683 | 0.770 |
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. Mets and Nationals 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 | Mets | Nationals |
|---|---|---|
| Fatigue | 7.9/10, Tired | 8.5/10, High risk |
| Efficiency | 5.2/10, Average | 4.1/10, Below average |
| Combined risk | 7.8/10, Tired | 9.0/10, High risk |
| Relief innings, last 7 days | 24.3 | 32.3 |
| Back-to-back arms | 5 | 5 |
| 7-day ERA | 4.07 | 5.01 |
| 7-day WHIP | 1.19 | 1.61 |
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 1.5 runs below 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.
More games today
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