| Start date | Start time | Title | General Location |
|---|---|---|---|
| Sat, Jul 12 2025 | 10:30am | Potsdam Summerfest (Acapella North Chorus) | Market Street Main Stage |
| Sat, Jul 26 2025 | 10:00am | Region 16 Annual General Meeting | Virtual |
| Fri, Aug 1 2025 | Diamond Division Quartet Contest | Tulsa, OK | |
| Sat, Aug 2 2025 | Rising Star Quartet Contest | Tulsa, OK | |
| Fri, Sep 26 2025 to Sat, Sep 27 2025 | Region 16 Music School | Belleville, ON | |
| Sun, Oct 5 2025 | 4:00pm | Directors' & Ass't Directors' Meeting | Virtual |
| Mon, Oct 20 2025 to Sat, Oct 25 2025 | International Convention & Competition 2025 | Columbus, Ohio | |
| Sat, Nov 8 2025 | Chorus Show - The Heartland Singers | Mississauga, ON | |
| Sat, Nov 22 2025 | Christmas Harmony 2025 - Northumberland Chorus | Cobourg, ON | |
| Sat, Nov 29 2025 | HOLIDAY HARMONY - Barrie Soundwaves & Barrie County Chordsmen Christmas Show | Barrie, ON | |
| Thu, Apr 30 2026 to Sun, May 3 2026 | 2026 Lake Ontario Region 16 Convention and Competition | TBA | |
| Tue, Jun 16 2026 | 7:00pm | Comedy Quartet at Durham Shores Chorus (Durham Shores Chorus) | Oshawa, ON |
| Sat, Jul 25 2026 | 10:00am | Region 16 Annual General Meeting | Virtual |
| Mon, Oct 26 2026 to Sat, Oct 31 2026 | 2026 International Convention & Competition | Columbus, OH | |
| Sat, Jul 24 2027 | 10:00am | Region 16 Annual General Meeting | Virtual |
| Mon, Oct 25 2027 to Sat, Oct 30 2027 | 2027 International Convention & Competition | Seattle, WA | |
| Sat, Jul 29 2028 | 10:00am | Region 16 Annual General Meeting | Virtual |
| Mon, Oct 23 2028 to Sat, Oct 28 2028 | 2028 International Convention & Competition | Seattle, WA |