Listings include organizations, headquarters, and number of attendees expected, as estimated by the Toledo-Lucas County Convention & Visitors Bureau:
•Tuesday-Thursday - Ohio Weights and Measures Association, Holiday Inn French Quarter Hotel, 125, state.
•Thursday-Saturday - Federated Democratic Women of Ohio, Park Inn Toledo, 200, state.
•Friday-Sunday - 40 Frame Game Bowling Tournament, Clarion Westgate, 250, regional.
•Friday-Sunday - Shammy Burt Annual Handicap Bowling Tournament, Baymont Inn Northwood, 400, regional.
•Friday-Sunday - Ohio Women's Bowling Association Tournament, Hilton Hotel, 1,500, state.
•Friday-Sunday- North American Model Engineering Society Expo, Park Inn Toledo, 4,000, national.
•Friday-Sunday - Johnson Word and Worship Ministries, Hilton Hotel, 400, regional.
•Friday-Saturday - Ohio Academy of Science, various properties, 450, state.