TJ Lake scored 14 of his 26 points in the fourth quarter -- including 12 straight -- to lead Western Dubuque past Davenport Assumption, 58-46, Tuesday in the Class 3A quarterfinals of the boys state basketball tournament at Wells Fargo Arena.

Western Dubuque (23-2) faces Sioux City Heelan (18-6) in the semifinals Thursday at 6:35 p.m. The Crusaders knocked off top-seeded MOC-Floyd Valley, 35-33.

Assumption (21-4) held a 35-34 lead after three quarters. The score was tied at 37 when Lake went off.

Lake's 3-pointer with 7:03 left put Western Dubuque ahead to stay, 40-37, and sparked a 12-0 run. He also hit two jump shots and made all four of his free throws, the last with 3:33 left, to push the Bobcats' lead to 49-37.

Assumption never got closer than 10 points the rest of the game.

Logan Pitz added 14 points and five assists for Western Dubuque, and Cameron James had 13 points.

Nick Schebler led Assumption with 12 points. Matt Vonderhaar scored 10 points and grabbed 15 rebounds.

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HEELAN 35, MOC-FLOYD VALLEY 33 -- Kyle Heaton made 5 of 6 free throws in the final 2:05 to lift eighth-seeded Heelan past No. 1 seed MOC-Floyd Valley.

Heaton made a pair of free throws with 1:10 left that gave Heelan (18-6) it first lead of the game, 34-33. He made the first of two free throws with nine seconds left, but missed the second.

A 3-pointer at the buzzer by MOC-Floyd Valley's Keegan Mulder missed and sent the Dutchmen (24-1) to their first loss.

Shane Graves led Heelan with 15 points. Heaton had 11.

Daniel Jansen scored 20 points and grabbed 10 rebounds for MOC-Floyd Valley.

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GRINNELL 60, WAVERLY-SHELL ROCK 55 -- Grinnell scored 26 points in the fourth quarter to erase a six-point deficit and stunned second-seeded Waverly-Shell Rock.

Grinnell (21-4) will play either Mount Pleasant or ADM Adel in the semifinals Thursday at 8:15 p.m. Mount Pleasant and ADM play Wednesday at 12:05 p.m. in the final Class 3A quarterfinal.

Waverly-Shell Rock (23-2) led 29-18 at halftime and 40-34 at the end of three quarters, but was outscored 26-15 in the final period.

Eli Dunne's three-point play with 57 seconds left gave Grinnell a 55-53 lead. JC Abrahamson added a pair of free throws for the Tigers with 28 seconds left that pushed their lead to 57-53.

Jesse Hendrickson's layup with 17 seconds left cut Grinnell's lead to 57-55, but Dillon Gretzky's two free throws with 12 seconds left stretched the margin back to four. Dunne added a free throw with four seconds left.

Jordan Ely led Grinnell with 15 points. Gretzky had 13, and Dunne and Joe Nowasell 10 apiece.

Hendrickson scored 17 points and grabbed 10 rebounds for the Go-Hawks. Klinton Carlson had 13 points and Jake Velky 10.

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MOUNT PLEASANT 62, ADM 32 -- Nick Lyon scored 17 points and grabbed 14 rebounds to power Mount Pleasant to the win in Wednesday's Class 3A quarterfinal.

Mount Pleasant (23-2) advances to Thursday's semifinals against Grinnell (21-4) at 8:15 p.m.

Mount Pleasant was never threatened. The Panthers led 15-6 at the end of the first quarter, 29-11 at halftime and 44-24 after three quarters.

Jordan Ashton scored 14 points and Blake Vandenberg added 10 points and seven rebounds for Mount Pleasant. the Panthers shot 53.7 percent from the field.

Alec Rash led ADM (21-4) with 10 points.

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