Ritchie notched two assists in Monday's 8-3 loss to the Penguins.
The 21-year-old rookie had a hand in second-period tallies by Mathew Barzal and Brayden Schenn as the Isles briefly took a 3-1 lead before imploding. Ritchie has a tidy four-game point streak going, and over his last 12 contests, he's collected four goals and 10 points while skating in a top-six role.