Talked to a fan working the counter at a irrigation parts store. Matteo climbed over Galena Pass and back setting Strava records for each. I don't have Strava but someone could check the stats? 23 yo and top 20 in first Tour is not a bad career start.
He beat a 7 year old KOM by Kai Applequist over 20 minutes, by 14 seconds for 5.25W/kg. Not sure what that's worth tbh.