10 a.m.: St Patrick’s Day/Sprint Thaw 5K. Course layout is flat and back on paved roads in the park. Lakeside Park, Pawling. For more information, visit www.mhrrc.org.
9:30 a.m.: Shamrock Scramble 5K. There are events for runners, walkers and kids’ run. Wallkill Firehouse, Wallkill. For more information, visit www.mhrrc.org.
9 a.m.: Wurtsboro Mountain 30K & Road Relay. Emma Chase School, 50 Pennsylvania Avenue, Wurtsboro. Contact Myriam Loor at (845) 866-1345 or email@example.com.
10 a.m.: March for Cancer 5K Run/Walk. Supports the Hudson Valley Cancer Resource Center. Moderately challenging course. Registration starts 9 a.m. Orange County Choppers Headquarters, Newburgh. For more information, visit www.mhrrc.org or www.orangecountychoppers5K.com.
Washingtonville Scholarship Run 5K. Run, walk, “wog” and kids’ run. Fast and flat course. Washingtonville. For more information, visit www.mhrrc.org.
10 a.m.: Claudio’s 5K. Registration begins at 8 a.m. Kids’ starts race at 9:20 a.m. Hyde Park Drive-In, Hyde Park. For more information, visit www.mhrrc.org.
Saint Mary’s Fishkill 5K and Kids’ Fun Run. Benefit for Saint Mary’s School, Fishkill. For more information, visit www.mhrrc.org.
9 a.m.: West Point Half-Marathon. Run with cadets from Michie Stadium. Two-lap tour of West Point. For more information, visit www.mhrrc.org.
1 p.m.: United Way 5K Annual Race. $20/preregistration by March 27, $25/regular registration. Students (12-18) and walkers pay $15 or $20, and kids under 12 are free. Race-day registration takes place from 10:30 a.m. to 12 noon. Registration is available online at www.active.com. HITS Showgrounds, Saugerties. For more information, contact Su Marcy at (845) 331-4199, extension 2, or firstname.lastname@example.org.
8:30 a.m.: Parents’ Run, Autism Move-a-thon 5K Run and Walk, Hustle for the Puzzle. Thomas Bull Memorial Park Boathouse, Montgomery. Contact Holly Borzacchiello at email@example.com or firstname.lastname@example.org or (845) 342-2400, extension 30.
10 a.m.: Hand-in-Hand 5K Run/Walk over the Walkway over the Hudson from Highland to Poughkeepsie. Entry fee is $10/5K walk, $20/5K run and free/children under 5. Race-day registration begins at 8:30 a.m. For more information, contact (845) 373-9511, extension 246, or email@example.com.
11 a.m.: Inter-Club Challenge. Thomas Bull Memorial Park, Hamptonburgh, 211 Route 416, Montgomery. Contact Dave Badolato at firstname.lastname@example.org or (845) 386-2469.
10:30 a.m.: Spring Sprint 5K. Annual 5K trail run sponsored by Scenic Hudson. This is a free event. Race-day registration is from 9 to 10 a.m. Shaupeneak Trail, Esopus. Contact Anthony Coneski at (845) 473-4440, extension 273, or email@example.com.
10 a.m.: Rabbit Ramble Run, 20th annual four-mile run at Guilderland High. Entry fees are $18, $13/runners over 70. Race-day fee is $25 for all. There also is an accompanying two-mile walk. Guilderland High, Guilderland. Contact Phil Carducci at (518) 861-6350 or firstname.lastname@example.org.