The short answer
Technically yes, and we'll advise against it. A sprint works because about an hour a day goes into practice targeted at the specific question types costing your student points. Splitting that hour across two programs means two half-efforts with two different theories of what to work on — and the programs' advice will conflict in ways your student has no way to adjudicate.
It comes up most often when a family already paid for something else — a course subscription with months left, a booklet, a block of tutoring hours. Nobody likes abandoning a sunk cost.
Why stacking backfires
The sprint’s whole mechanism is concentration: roughly an hour a day, every day, aimed at the two or three question types actually bleeding points. Add a second program and one of two things happens. Either the hour gets split — so neither plan gets enough repetition to lock anything in — or the day gets longer, and a sixteen-year-old’s willingness is a finite resource that runs out well before the second syllabus does.
There’s a subtler conflict too: two programs mean two theories of what your student should do next. A course says cover Science this week; the coach says Science is fine and the leak is Reading pacing. A student caught between them either does both badly or starts choosing for themselves, which defeats the point of paying anyone for direction.
The evidence we keep seeing
Students arrive with a stack. Taylan came in at a 24 owning both a prep booklet and an hourly tutor — resources weren’t the problem, and adding a third wouldn’t have been the fix. The Boosted Brains sprint replaced the stack with one plan, and he finished at a 32.
What to do with the thing you already bought
Pause it if you can, and keep the practice-test bank if it has one — extra full-length tests under real timing are the one ingredient that stacks cleanly with anything. Then pick one program to be the plan, and go all-in on it. Ours or anyone’s: one plan, full effort, beats two plans at half.
