The Eagles (12-3) finished a perfect 3-0 in tournament play in the three-day event.
Saturday's game was close throughout. The teams were tied at 11-11 after the opening quarter and Sumiton Christian took a 26-25 lead into the half. The game was tied 37-37 going into the final quarter.
Sumiton Christian won the game despite allowing 37 points to Oak Grove's Jonah Todd. The rest of Oak Grove's team scored a total of 15 points.
For the Eagles, Vann Lovelady had 16 points while Demonte Hobbs added 15 points.
Sumiton Christian will play again at 4 p.m. Friday vs. Addison in the Smith Lake Classic at Meek High School.
Sumiton Christian's girls also won the tournament title, beating Oakman in the championship game on Saturday.
In Saturday's other games: Westminster Christian-Oak Mountain girls defeated Oak Grove, Addison's girls defeated Shades Mountain Christian, Westminster Christian-Oak Mountain's boys defeated Cordova and Parkway Christian's boys defeated Meek.
Sipsey Valley Christmas Tournament
Sipsey Valley 51, Parrish 45
Parrish fell to Sipsey Valley, 51-45, in the championship game of the Sipsey Valley Christmas Tournament on Saturday.
The Tornadoes (10-2) kept the game close throughout, but were unable to overcome the Bears, who are ranked ninth in Class 3A.
Sipsey Valley led 15-9 after the opening quarter, 21-17 at the half and 31-25 after three quarters.
Both Reginald Harris and Jermichael Harris had 14 points for the Tornadoes.
Parrish advanced to the championship game with a win over American Christian Academy on Friday.
"We had a really tough night shooting and we didn't rebound as well as we have been," Parrish coach Heath Burns said. "They've got a good team. It was good for us to see two good teams like that on consecutive nights. We will regroup over the holidays and we'll be fine."
Buckhorn 76, Walker 52
Buckhorn’s size gave Walker trouble all night as the Bucks knocked off the Vikings 76-52 at Songer Gymnasium on Saturday.
The game was close through a quarter of play, but Buckhorn’s Chad Cromwell and Tre Tipton combined for 19 points in the second quarter to put the Bucks up by 17 points at the half.
Walker (10-3) didn’t get within striking distance in the second half.
Aaron Morris and Brandon Thursby kept Walker close through the first quarter. Thursby had seven points and Morris added six in the period. Buckhorn (4-10) led 24-18 after one.
The Bucks took command in the second for a 48-31 halftime lead. Buckhorn led 63-41 after three quarters.
For Walker, Morris had 12 points, Kenyatta Woods added eight, both Matt McKay and Thursby had seven and Isiah Cox, Michael Bridges and Jabari Johnson scored four points each.
For the Class 6A Bucks, Chad Cromwell had 15 points, Juston Wherry had 12 and Tre Tipton added 11.
Walker was playing its second game in as many days. The Vikings defeated Cold Springs on Friday.
Next up for Walker is a trip to the Big Orange Classic at Hoover set for Dec. 26-28.