A change to zone defense had been a major factor during the Desert Christian boys 14-game winning streak.

But with the Eagles trailing No. 12 Tempe Prep by one at the half in the Division IV state quarterfinals on Thursday night, it was time to try something new — or rather, something old.

No. 14 Desert Christian reverted back to man-to-man defense, and the result couldn’t have been better as the Eagles ran away with a 58-36 victory at Tim’s Toyota Center in Prescott Valley to secure a trip to the state semifinals.

The Eagles will play No. 1-seeded Scottsdale Prep at 7:45 p.m. today at Tim’s Toyota Center with a chance to advance to their first state title game since 2007.

Scottsdale Prep upset Desert Christian in the quarterfinals last season.

Desert Christian outscored Tempe Prep 19-2 in the third quarter, and 32-8 in the half, which coach Iram Alday said is a testament to the team’s growing confidence.

After a rough first half for Desert Christian, the shots finally fell as Cameron White finished with a game-high 16 and sixth-man Jake Furrier added 13 off the bench for the Eagles who have won 15 straight and 18 of their past 19.

Division IV girls

No. 7 St. David 38, No. 2 St. Gregory 29: At Tim’s Toyota Center, the Hawks’ playoff hopes were dashed as St. Gregory fell to St. David for the second time this year. The Hawks had won 15 of their past 16 coming in, with the only loss in that span coming to St. David.