Not this year. Just meant they've played DelVal in the past.
When?
2010. Seaman/Murray/Shorts team.
I asked because Mount’s web site doesn’t list any past meetings. http://mtun.sidearmsports.com/sports/2021/7/14/series-records.aspx
They definitely played them. I was there. It was one of those classic Thanksgiving weekend playoff games with plenty of available seats. If you go to the 2010 schedule page it's there. 31-3 win. Sometimes those compilation pages on the website are not accurate unfortunately. The price of being D3 and not having a dozen people in the sports info dept!
For what it may or may not be worth...
Yes; Mount Union COLLEGE did, in fact, defeat Delaware Valley during the 2010 playoffs. I recall following it ... a new opponent at the time.
With regards to the link to the UMU athletic site, it has(had) issues.
~Two years ago, they rolled out something new that had team logos. I tabbed through it and immediately identified errors (the wrong Bridegewaters, for example). I contacted Lenny, and he asked me to give it a scrub, and I passed back what I had additionally found ... three errors, if I recall. But it only was a scrub of what was there (teams/match ups) ... not of what might be omitted.