ISU bridged halftime with an 18 - 2 run to take a 13 - point advantage over Colorado .
The Buffs responded with a 13 - 3 stretch to pull back within five midway through the second half .
ISU bridged halftime with an 18 - 2 run to take a 13 - point advantage over Colorado , but the Buffs responded with a 13 - 3 stretch to pull back within five midway through the second half .