Starting pitchers
2026 season (MLB rank among qualified starters)
2026 season (MLB rank among qualified starters)
How the starters differ
·McCullers works deeper into games, 5.1 IP per start versus 4.3.
·McCullers enters with a 7.53 road ERA; Castillo owns a 4.72 ERA at home.
How the lineups match the starters' pitch mix
Pitch data coverage: partial. Usage and velocity only.
Jr. arsenal
| Pitch | Usage | Velo |
|---|
| Cutter | 28% | 89.0 |
| Sinker | 22% | 91.2 |
| Sweeper | 17% | 82.3 |
| Changeup | 15% | 85.4 |
| Knuckle Curve | 15% | 81.6 |
| Four-seam | 4% | 91.6 |
Castillo arsenal
| Pitch | Usage | Velo |
|---|
| Four-seam | 42% | 95.2 |
| Slider | 25% | 85.6 |
| Sinker | 18% | 95.4 |
| Changeup | 15% | 87.4 |
| Cutter | 0% | 92.3 |
Team OPS vs opposing starter's hand
0.739OPS
.600.700.800.9001.000
0.712OPS
.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
HOU·
SEA+39311th
Run differential
+28028th
Frequently asked
Who is starting for the Astros?+
Lance McCullers Jr. is listed as the starter.
Who is starting for the Mariners?+
Luis Castillo is listed as the starter.
What time does the game start?+
9:40 PM ET at T-Mobile Park.
Where is the game being played?+
T-Mobile Park, home of the Seattle Mariners.
Are the lineups confirmed?+
Not yet. Orders appear here when they are posted.
How do the starters compare on P-Score?+
Lance McCullers Jr. is at 36; Luis Castillo is at 38. P-Score is PitcherStat's 0–100 season index for qualified starters.