Today's starting pitching matchup features Arizona Diamondbacks's Kohl Drake (0-0, 1.80 ERA) against Washington Nationals's Miles Mikolas (3-7, 5.60 ERA).

Arizona Diamondbacks's Kohl Drake posts an elite 1.80 ERA this season, while Miles Mikolas has been struggling at 5.60. There is a clear gap in starting pitching quality.

Advanced metrics: Kohl Drake — FIP 2.90, K% 23.8%, 5.0 IP / Miles Mikolas — FIP 5.46, K% 12.2%, 98.0 IP

2026 season record: Arizona Diamondbacks 55-50 (.524), Washington Nationals 53-52 (.505).

Recent form: Arizona Diamondbacks on a 1-game losing streak, Washington Nationals on a 1-game win streak.

Based on starting pitching, Arizona Diamondbacks holds the edge.

Arizona Diamondbacks bullpen: 13 relievers on the active roster. Key arms: Brandon Pfaadt 4.43 ERA, 45K in 65.0IP, Brandyn Garcia (Setup) 1.69 ERA, 30K in 26.2IP, Eduardo Rodriguez 2.64 ERA, 86K in 122.2IP.

Washington Nationals bullpen: 13 relievers on the active roster. Key arms: Andrew Alvarez 4.22 ERA, 55K in 53.1IP, Cade Cavalli 3.58 ERA, 127K in 110.2IP, Carson Palmquist 9.24 ERA, 15K in 12.2IP.

Projected win probability: Arizona Diamondbacks 63% vs Washington Nationals 37%

Factors: Arizona Diamondbacks's starter owns the lower ERA, Washington Nationals's home-field advantage. Of course, baseball's inherent randomness means actual results may differ.

Workload comparison: Kohl Drake averages 5.0 IP per start vs. Miles Mikolas at 12.3 IP. Getting six-plus innings from the starter significantly eases the bullpen burden.

Miles Mikolas has allowed 21 HR this season — a concern against a lineup with extra-base power.