The Hudson boys lacrosse team fell to 8-3 on the season after suffering a 17-7 loss to Dublin Coffman April 21 at Rocks Stadium.
The Shamrocks, who improved to 10-3, outscored the Explorers 5-0 in the second quarter to take an 8-4 lead.
Coffman outscored Hudson 6-2 in the third quarter.
"A costly penalty turned the game around and gave the Shamrocks the advantage they needed," Explorers head coach David Blue said. "They scored four times in a three-minute period.
"Our scoring chances dried up in the second and third periods as possessions disappeared."
Cole Miller had two goals and one assist and Max Cole and Chandler Kotseos each had one goal and one assist for Hudson.
Brady Ludewig, Matt Restifo and Kevin Callahan each scored once for the Explorers and Anthony Rightnour had an assist.
Hudson goalie Stroud Corr made eight saves in the cage.
Nick Harris led the Shamrocks with six goals and one assist and Luke Holland had five goals.
Evan James had three goals and two assists and Cam Bowdy had two goals and three assists for the Shamrocks.
Coffman also got a goal and three assists from Ethan Tyack. Shamrocks' goalie Roman Emig made eight saves.
"The defense is being challenged heavily by the top teams in the state," Blue said. "We gave up too many shots and weren't physical enough when needed.
"The Rocks were able to get in tight, get hands free and fire away without contact. This will have to be fixed."
Coffman had a 45-25 advantage in shots and a 25-20 edge in ground balls. The Explorers committed 14 turnovers and the Shamrocks lost the ball 11 times.
Coffman won 16 of 26 face-offs and converted 5 of 6 extra-man opportunities. Hudson committed seven penalties.
The Explorers' junior varsity team improved to 10-0 with a 12-11 win.
Hudson was scheduled to host Cleveland St. Ignatius April 25 at Hudson Memorial Stadium. Results were not available at press time.
The Explorers are set to entertain Olentangy April 28 at 8 p.m.