5K Frostbite Run: Deer Park Winter Festival, 10 a.m., Deer Park Civic Center, 315 E. Crawford Ave. Awards, refreshments, $20 with Brooks technical T-shirt, $8 without T-shirt, add $5 after Jan. 17. Info: Scott, (509) 468-8381.

THURSDAY

Free Lecture: Boost Your Immune System: 6:30-8 p.m., Pilgrim's. Whole-life cycle mushrooms play an important role in supporting immune function, vitality and detoxification. Jake Flaherty, PNS, will discuss this vital ingredient for keeping you and your family healthy.

SATURDAY, Feb. 2

Resolve: The New Year's Weight Loss Challenge: 10 a.m. to noon, put on by Summit Family Chiropractic at the Altar Church, 901 E. Best Ave. $10, or $20 with a book. To register, 664-1000 or maximizedlivingsummit.com

SUNDAY, Feb. 10

27th annual Partners in Pain 5K: Fun run for pairs, with awards to teams with fastest combined times. West Central Community Center, 1603 N. Belt, Spokane. 10 a.m. $24 a person with shirt, $12 without, postmarked by Jan. 30. Awards. Info: (509) 999-5856.

SUNDAY, Feb. 24

23rd annual Leprechaun Scurry: 9 a.m., Lake City High School. Three miles. $15 with T-shirt, $7 without, by Feb. 15. Age group awards, prizes, food and drinks. Register at Fleet Fleet, 511 Sherman Ave. Information: Heather Harmon, 691-4931 or email hharmon@cdaschools.org

SATURDAY, March 2

6th annual Centennial Trail run: Late winter ultramarathon in Spokane. 37 miles, starts at Stateline, goes to Sontag Park near Nine Mile Dam. $20. No aid stations, time yourself, receive starter's medal, and Spokane River Centennial Trail map. www.ctrun.net

SUNDAY, March 17

St. Paddy's Five: Spokane Community College, 10 a.m.

SATURDAY, March 23

Rapid Rabbit Run: 10 a.m., 5 and 3 mile races. East Valley High School. Awards, refreshments, prizes. $18 with shirt or $10 without by March 1. Race day, $18 no-shirt only. Checks payable to: EVHS-SAK, E. 25407 Eddy Lane, Newman Lake, Wash., 99025 Questions? Jeni Ragan (509) 226-2197 or email: tjragan@comcast.net

SUNDAY, April 21

Spokane River Run: 50K ($60/$85), 25K ($40/$65), 10K ($27/$42) and 5K. Cost is with or without shirt. Races begin at 7:45 a.m., Start, finish at old airstrip next to the Seven Mile Bridge at Riverside State Park. All four distances are primarily run on single-trail trail. Info: spokaneriverrun.com

SUNDAY, May 5

Bloomsday: 12K run in Spokane, 40,000 to 50,000 runners and walkers. www.bloomsdayrun.org

SUNDAY, May 19

Fifth annual Windermere Marathon and Half Marathon: Marathon, $90 is postmarked by March 31; Half, $80 by March 31. Start at Rocky Hill Park in Liberty Lake. Both races start at 7 a.m. Course follows Centennial Trail, finishes at Spokane's Howard Street Bridge in downtown Riverfront Park. www.windermeremarathon.com

SUNDAY, May 26

Coeur d'Alene Marathon and half marathon, 5K: Riverstone. Info: www.cdamarathon.com

To have your event placed in this calendar, email info to bbuley@cdapress.com.