Matchup at a glance
PitcherStat calculationCategoryComparisonWhy
Starting pitcherEvenThe starters grade similarly overall, with no clear advantage across P-Score, ERA and WHIP.
Offense vs handPiratesPittsburgh owns a .695 OPS vs LHP, 18th in MLB; St. ranks 27th vs RHP.
Team strengthPiratesPittsburgh leads 53–42 in T-Score, driven by stronger offense.
Starting pitchers
2026 season (MLB rank among qualified starters)
2026 season (MLB rank among qualified starters)
How the starters differ
·Liberatore strikes out 2.0 more batters per nine innings.
·Keller allows the lower home-run rate: 1.17 vs 1.63 per nine.
·Keller allows fewer baserunners, with a 1.37 WHIP compared with 1.49.
·Keller carries a 5.05 road ERA, compared with Liberatore's 5.77 mark at home.
Advanced starter metricsERA−, FIP, WAR, career vs opponent
| Metric | Keller | Liberatore | Note |
|---|
| ERA− | 122 | 134 | Park- and league-adjusted; 100 is average. |
| FIP | 4.55 | 4.71 | |
| WAR | 1.0 | 0.9 | Season value. |
How the lineups match the starters' pitch mix
Pitch data coverage: partial. Usage and velocity only.
Keller arsenal
| Pitch | Usage | Velo |
|---|
| Four-seam | 32% | 93.3 |
| Sinker | 17% | 92.3 |
| Sweeper | 16% | 82.0 |
| Slider | 10% | 87.2 |
| Curveball | 9% | 77.8 |
| Changeup | 9% | 88.7 |
| Cutter | 7% | 89.7 |
Liberatore arsenal
| Pitch | Usage | Velo |
|---|
| Four-seam | 30% | 94.3 |
| Slider | 27% | 86.1 |
| Curveball | 18% | 79.6 |
| Changeup | 13% | 88.6 |
| Sinker | 8% | 94.3 |
| Cutter | 4% | 90.5 |
| Sweeper | 0% | 85.2 |
| Splitter | 0% | 87.0 |
Team OPS vs opposing starter's hand
0.695OPS
.600.700.800.9001.000
0.693OPS
.600.700.800.9001.000
Lineups
Final lineupsOrder from the stored snapshot; treat as unofficial until the card is filed.Full lineup page Lineups not announced
Neither club has posted a batting order. Handedness composition, H-Score leaders and batter-vs-pitcher samples appear here as soon as the first order is filed — typically two to three hours before first pitch.
Team comparison
Results
PIT·
STL+25612th
Run differential
+20419th
Frequently asked
Who is starting for the Pirates?+
Mitch Keller is listed as the starter.
Who is starting for the Cardinals?+
Matthew Liberatore is listed as the starter.
What time does the game start?+
7:45 PM ET at Busch Stadium.
Where is the game being played?+
Busch Stadium, home of the St. Louis Cardinals.
Are the lineups confirmed?+
Not yet. Orders appear here when they are posted.
How do the starters compare on P-Score?+
Mitch Keller is at 44; Matthew Liberatore is at 46. P-Score is PitcherStat's 0–100 season index for qualified starters.