Thursday (17th) – Area B-3 Boston Police host their annual Christmas party at the Mildred Avenue School, 5 Mildred Ave., Mattapan from 4-8 p.m.

Friday (18th) – First annual Dana Barros Holiday Jam Tournament at UMass Boston’s Clark Center starts at 5:30 p.m. The three-day tournament will bring together teams from across Massachusetts, including both boys and girls’ high school and middle school teams. For more information visit the3pointfoundation.org.

• José Mateo Ballet Theatre brings its treasured production of The Nutcracker to the Strand Theatre in Dorchester at 7 p.m. Ticket prices start at $20. Go to ballettheatre.org.

Saturday (19th) – Boston City Singers’ Dorchester groups perform “Winter Stars” concert at Saint Ann’s Parish at 7 p.m. Over 100 young children and teens from all three divisions of the concert chorus, which include ages 4 to 18 and the World Rhythm Ensemble, will celebrate the holidays by singing a range of musical styles featuring songs from a variety of countries. Free, but donations welcome. For more information on Boston City Singers, visit: bostoncitysingers.org.

• José Mateo Ballet Theatre’s The Nutcracker at the Strand Theatre at 2 p.m. and 7 p.m. 

Sunday (20th) – The Friends of Cedar Grove Cemetery 35th annual Christmas Mass in memory of the deceased at 11 a.m. in the Gilman Chapel at Cedar Grove Cemetery, 920 Adams St. A concert of Christmas music begins at 10:45 a.m. Coffee and pastry will follow the Mass, which will be celebrated by Rev. John Connolly.

• Mayor’s Cup Youth Hockey Tournament in 13 divisions for boys and girls ages 6 to 14 (Mites, Squirts, Pee Wees, and Bantam). For a full game schedule, please go to the Parks Department’s recreation
page at boston.gov/parks/recreation.asp.

José Mateo Ballet Theatre The Nutcracker staged at the Strand Theatre in Dorchester at 2 p.m. and 7 p.m.  Go to ballettheatre.org.

• Team MR8 Run for Martin kickoff event at Blasi’s Café from 6-8 p.m. includes drawings for Christmas trees, prizes and t-shirts to support the Martin Richard Foundation and Michael McCarthy’s Team MR8 fundraising efforts. To buy a $20 chance to win a book of scratch tickets, email Sheila.michael5@yahoo.com.