Williams looks like the best 2026 performer of the 3 Guardians starters the Nats have seen. Only weakness looks like being a bit homer prone. FIP and ERA are close, so no indication of something not within the pitcher's control influencing the results to date. 30+ K% is impressive.
Cleveland giving another excellent defensive catcher, Hedges, a chance to start. Otherwise, it's the lefty and switch hitters they ran out last night.
Something to flag in the Nats lineup is Mead at 3rd and Vivas at 2B in place of Nunez. I think we may start to see Vivas getting more starts at 2B against righties with Nunez getting a higher % of his starts against LHP. Nunez has enormous splits this year, hitting lefties at a passable rate (.277 / .393 / .319, 114 wRC+) while being completely ineffective against RHP (.154 / .242 / .171, 23 wRC+ ). Mead is hitting RHP well, so the more obvious offensive platoon is with Nunez vs LHP and Vivas vs RHP. You can ignore Vivas's nominally reverse splits because he's only had 13 PAs vs LHP and go with his 100+ PAs vs RHP this year (.241 / .320 / .345, 91 wRC+). Another thing to note about the Nats lineup is Crews is getting the day off with Tena DH'ng rather than one of Lile or Wood. You can suppose that dodging the quality righty makes some sense for Crews, and Tena needs to play a bit.
Mikolas has horrible numbers for the season, but he's come around in May - 19.1 IP, 3.26 ERA / 4.32 FIP, 15.8 K%, 3.9 BB%, 0.93 WHIP, 3 HR, .237 OBP against. Some BABIP luck (.207) but the low walk and HR rates are responsible for the vastly better performance vs April. In fact, his HR/FB in May matches Cleveland's starter (15.0% HR/FB). Not good, but better than the 23.5% he ran previously. Fewer runners (OBP), fewer HRs, fewer runs on dingers.