Matchup at a glance
PitcherStat calculationCategoryComparisonWhy
Starting pitcherEvenBoth starters enter with comparable season profiles; neither holds a meaningful statistical advantage.
Offense vs handAthleticsAthletics has produced the stronger offense against right-handed pitching.
Team strengthMarinersSeattle leads 35–22 in T-Score.
Starting pitchers
2026 season (MLB rank among qualified starters)
2026 season (MLB rank among qualified starters)
How the starters differ
·Lopez enters with a 5.71 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.
Lopez arsenal
| Pitch | Usage | Velo |
|---|
| Four-seam | 35% | 89.5 |
| Slider | 34% | 75.7 |
| Cutter | 20% | 85.3 |
| Changeup | 8% | 81.5 |
| Sinker | 3% | 89.7 |
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
0.717OPS
.600.700.800.9001.000
0.655OPS
.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
ATH·
SEA+22130th
Run differential
+28028th
Frequently asked
Who is starting for the Athletics?+
Jacob Lopez 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?+
Jacob Lopez is at 41; Luis Castillo is at 38. P-Score is PitcherStat's 0–100 season index for qualified starters.