Open/Challenge Events
Youth Only Events = teal background
| Date | Host Center | City | Entry |
|---|---|---|---|
| Sunday, August 3, 2025 | Gaylord Bowling Center | Gaylord, MI | $90 |
| Sunday, August 31, 2025 | 5 Star Doubles | Sterling Heights, MI | $140/team |
| Sunday, September 28, 2025 | Thunderbowl #1 Kiser Tournaments & MSBS House Shot Trio |
Fort Wayne, IN | $300/team |
| Sunday, October 5, 2025 | Shelby Lanes Youth Challenge | Utica, MI | $80 |
| Sunday, October 12, 2025 | Shore Lanes Doubles | St. Clair Shores, MI | $160/team |
| Saturday, October 18, 2025 | Bellaire Lanes | Bellaire, MI | $90 |
| Sunday, November 16, 2025 | Rich Lanes String Pin Challenge | Blissfield, MI | $70 |
| Sunday, November 30, 2025 | 13th Annual Fort Wayne Open Pro Bowl West |
Fort Wayne, IN | $90 |
| Sunday, December 14, 2025 | 6th Annual Anderson Open Championship Lanes |
Anderson, IN | $90 |
| Saturday, December 20, 2025 | South 66 Lanes | Defiance, MI | $80 |
| Sunday, December 21, 2025 | Continental Lanes Baker Doubles (House Shot) | Kalamazoo, MI | $140/team |
| Saturday, December 27, 2025 | Fenton Lanes | Fenton, MI | $80 |
| Wednesday, December 31, 2025 | Bluefusion Fun Center | Marion, OH | $90 |
| Sunday, January 11, 2026 | Bay City Challenge Monitor Lanes |
Bay City, MI | $90 |
| Sunday, January 18, 2026 | Heritage Lanes | Kokomo, IN | $90 |
| Saturday, January 24, 2026 | Holly Lanes | Holly, MI | $80 |
| Sunday, February 1, 2026 | Hi Skore Lanes | West Branch, MI | $90 |
| Saturday, February 14, 2026 | Greenville Hot Spot | Greenville, MI | $80 |
| Sunday, March 1, 2026 | Kiser & MSBS House Shot Baker Doubles MVP Lanes |
Fort Wayne, IN | $140/team |
| Saturday, March 7, 2026 | Country Lanes | Farmington Hills, MI | $80 |
| March 7-8, 2026 | 8th Annual Kalamazoo Open Continental Lanes |
Kalamazoo, MI | $100 |
| Saturday, March 21, 2026 | Downriver Challenge Ten Pins of Trenton |
Trenton, MI | $90 |
| March 28-29, 2026 |
Grand Rapids Open Northfield Lanes |
Grand Rapids,I | TBD |
| Saturday, April 4, 2026 | Big Rapids Bowling Center | Big Rapids, MI | $80 |
| Sunday, April 26, 2026 | Castle Lanes Baker Doubles | Racine, WI | $160/team |
Sweeper Events
| Date | Host Center | City | Entry |
|---|---|---|---|
| Saturday, August 2, 2025 | Char Lanes | Charlotte, MI | $60 |
| Monday, August 4, 2025 | Airway Lanes | Portage, MI | $50 |
| Thursday, August 7, 2025 | Bonanza Lanes (combined) | Warren, MI | $50 |
| Sunday, August 10, 2025 | Stardust Lanes | Saginaw, MI | $50 |
| Monday, August 11, 2025 | Westgate Bowl | Comstock Park, MI | $50 |
| Tuesday, August 12, 2025 | Monroe Sport Center | Monroe, MI | $50 |
| Thursday, August 14, 2025 | Five Star Lanes | Sterling Heights, MI | $50 |
| Sunday, August 17, 2025 | Thunderbowl Metro Detroit Rhombus Rolloff |
Allen Park, MI | $80 |
| Monday, August 18, 2025 | Continental Lanes SW MI Rolloff |
Kalamazoo, MI | $60 |
| Wednesday, August 20, 2025 | Royal Scot Golf & Bowl Lower Mid-MI Rolloff |
Lansing, MI | $60 |
| Thursday, August 21, 2025 | Sterling Lanes Metro Detroit Semicircle Rolloff |
Sterling Heights, MI | $60 |
| Sunday, August 24, 2025 | Richfield Bowl Flint/Tri-Cities Sprummer Rolloff |
Flint, MI | $60 |
| Tuesday, August 26, 2025 | Interstate Lanes Greater Toledo Sprummer Rolloff |
Rossford, OH | $60 |
| Saturday, September 13, 2025 | Midwest Sprummer Championship Royal Scot Lanes |
Lansing, MI | $80 |
| Wednesday, November 26, 2025 | Oak Lanes House Shot Sweeper | Westland, MI | $60 |
| Monday, April 27, 2026 | Shelby Lanes Combined Kickoff | Utica, MI | $70 |
2024-2025 Scratch Sprummer Series
Flint/Tri-Cities -- Mostly Sunday evenings
Greater Toledo -- All Tuesdays
Lower Mid-MI -- Mostly Tuesdays
Metro Detroit East Semicircle -- Mostly Thursdays
Metro Detroit East Trapezoid -- Mostly Thursdays
Metro Detroit SW Rhombus -- Mostly Fridays
SW MI -- Mostly Mondays
Western MI -- Mostly Mondays
Northern MI -- Saturdays or Sundays