The Americans won their 15th consecutive title in the medley race.
The Americans finished seventh overall among both heats Friday morning.
Armstrong finished tied for ninth in the men's 100m backstroke this week.
Armstrong finished 9th overall in the qualifiers, missing by .01 seconds.
Armstrong finished tied for 15th after preliminaries.
The club had announced after last season it would be replacing its longtime moniker.
Brad Morgan II and Troy Summers were also inducted into the 2021 class.
Ross had coached N.P. for four seasons.