Grades get your child considered. The supplementary application decides the rest, and its answers are built years before Grade 12.
When a parent tells me their child is aiming for McMaster Health Sciences, I don’t start by asking about marks.
That surprises people. McMaster Health Sciences is one of the most competitive undergraduate programs in Canada, and yes, we will talk about grades. (McMaster now calls it the Honours Health Sciences Program. It awards a Bachelor of Health Sciences, or BHSc, the name many families still know it by.) But after more than 15 years advising students and families across Markham, Richmond Hill, Vaughan, and the rest of York Region, I have learned that the families who succeed with this goal are the ones who start the right conversation early. The best time is Grade 9 or 10, when there is still time to build the habits, traits, and skills the application is looking for. By Grade 12, when the application opens, most of that time has passed.
This article is that conversation. If your child has mentioned McMaster Health Sciences, or if you suspect it may be on the horizon, here is what I would tell you if you were sitting across from me.
The first question I ask isn’t about grades
It’s this: why Health Sciences?
For most students, the answer is medicine. McMaster Health Sciences has a reputation as a launching pad for medical school, and many families pursue it for exactly that reason. There is nothing wrong with that. But it changes the plan entirely.
If the real goal is medicine, then we are preparing a student for a path that runs a decade or more: an inquiry-driven undergraduate program, the MCAT, medical school applications, interviews, and a career built on performance under pressure. A student who is packaged into Health Sciences without the underlying habits will struggle at every later stage. A student who builds those habits early will find that each stage opens the next.
So before I ask about the mark in Grade 9 science, I want to know whether the goal is the program or what lies beyond it, because the strongest preparation serves both.
What average does McMaster Health Sciences require?
Now, the marks. Let me be direct, because there’s a trendy idea going around that grades aren’t important anymore. For this program, they matter a great deal.
McMaster Health Sciences receives over 7,000 applications each year for roughly 240 first-year seats. Admission is based on Grade 12 marks and a mandatory supplementary application, considered together. McMaster states that a minimum Grade 12 average of 90% is required to be considered.
A student who is not performing academically is not in the conversation, no matter how compelling their story is. Families in York Region should hear this clearly: the academic bar is real, it is high, and it must be cleared.
But here is the part that catches strong students off guard. In many York Region classrooms, a growing number of students hold averages in the 90s. It’s an academically driven area. When thousands of applicants clear the academic bar, marks alone stop separating candidates, a pattern I’ve written about in how Ontario universities choose between students with the same high average. McMaster says as much on its own admissions pages: a high average alone does not guarantee admission. That is precisely why the program built a second filter.
The practical conclusion for your family is that your child needs both: excellent marks, built on genuine mastery rather than report card generosity, and the qualities the second filter is designed to find. Preparing for one without the other is how ambitious, capable students end up with a rejection letter they never saw coming.
What does the McMaster Health Sciences supplementary application assess?
The supplementary application is where a student’s personality, thinking, and experiences come through. Whatever your child has built over 4 years of high school has to show up in a short set of written responses (2, in recent years).
Those responses test more than writing ability. Year after year, the questions probe self-knowledge, critical thinking, problem-solving, and the capacity to reflect honestly. They are designed to be difficult to fake, and reviewers read thousands of them. Generic answers are the most common way strong students lose ground.
Here is the timing problem most families discover too late. The questions are posted on the program’s website in the fall of Grade 12, and students submit their responses during a short, time-limited portal window, typically in early to mid-February. That leaves little time to develop depth of thought, genuine experiences, or self-awareness. Students can only draw on what they’ve already done.
In other words, the supplementary application is written in Grade 12, but the answers are built in Grades 9 through 11 (and earlier). That’s how the application is structured.
What should a Grade 9 or 10 student focus on?
If your child is in Grade 9 or 10 today, here is the plan I would lay out: 5 moves, none of which involve panic, and all of which compound.
1. Secure the academic foundation now.
The marks McMaster sees are Grade 12 marks, but those marks are decided earlier. Grade 11 Functions and the senior sciences are where strong students in York Region often stumble, because of the jump in difficulty from Grade 10 to Grades 11 and 12. Small gaps early on snowball into larger ones. Genuine mastery of the fundamentals now is what makes the senior years hold. This is exactly what our tutoring is built for: future-proofing strong students as well as supporting those who are struggling.
2. Build real inquiry experiences.
McMaster Health Sciences is an inquiry-based, collaborative program, and its application rewards students who have actually worked through open-ended problems. One sustained project, research experience, or community initiative your child genuinely cares about is worth more than 6 club memberships. Depth reads as authentic because it is.
3. Develop a reflection habit.
I once interviewed Dr. Zizo Al-Daqqaq, a urology resident at the University of Ottawa, about how his reflective journaling practice played a role in his medical training.
Ambitious students can start this habit much sooner. The supplementary application asks students to know themselves. Most 17-year-olds have never been asked to explain how they think, where they struggle, or what they have learned from failure. Students who journal, debrief their experiences, or regularly talk through their thinking with a mentor enter Grade 12 with practice and material to draw on. Everyone else starts from a blank page.
4. Pressure-test study habits before the stakes rise.
Hours of passive review on a laptop produce report card marks that don’t survive contact with a hard exam. Active recall, real problem solving, and honest self-testing separate a student who looks prepared from one who is prepared. If there’s a gap between homework performance and test marks, that gap is useful information, and it can be closed. I wrote about it in why some students get the homework but blank on the test.
5. Protect the student as well as the average.
The families I work with are ambitious, and so are their children. The goal is a student who reaches Grade 12 confident and steady, with energy left for the application. A structured plan replaces panic with predictability for both the student and the parents. That’s the quiet advantage of starting early: nothing in this plan requires cramming 4 years of growth into 4 months.
This is, candidly, a great deal for any family to orchestrate on their own, on top of everything else high school demands. It’s also what we build with families in our coaching and tutoring programs: the foundation work, the habits, and the reflection, sequenced across the years so that Grade 12 becomes a year of execution.
The mistake that costs families the most
The most expensive mistake is the Grade 12 scramble, and it happens to ambitious, capable students every year. In September of the application year, a family discovers that marks alone aren’t enough, and the student tries to build depth, reflection, and experiences in a few months while carrying the heaviest course load of high school.
Some students get through that scramble unscathed. Others don’t. And those who just squeak by pay for it in stress that was entirely avoidable.
The families who start this conversation in Grade 9 or 10 experience the opposite. The marks are built on real understanding, so senior year holds. The experiences exist, so the application draws on real material. And the student walks into the most competitive application in the province with something crucial: confidence.
Start the real conversation
This article is the general version of a conversation I have with York Region families every year. The specific version depends on your child, their grade, their current habits, their goals beyond the application, and what is doable for your family this year.
If McMaster Health Sciences, or the path it represents, is on your child’s horizon, I invite you to book a complimentary 15-minute consultation. In that call, I’ll help you see where your child stands today compared with where this program will need them to be, and you’ll leave with clarity either way.
Requirements and dates change, so confirm details on McMaster’s official pages before applying.
About the Author
Francesca Cadhit is the founder of Top Class Edge Learning, a high school academic coaching and tutoring practice serving families across Markham, Richmond Hill, Vaughan, and the wider GTA. For more than 15 years, she has worked with over 100 York Region families, including students admitted to McMaster Health Sciences, Waterloo Engineering, and U of T Computer Science. Her team of Ontario-curriculum tutor-coaches and consultants helps students build the foundations, study habits, and reflection that competitive programs look for. Francesca holds an HBSc from the University of Toronto, received the Governor General’s Academic Medal, and has trained in educational consulting through IECA.
You can reach Francesca at francesca@topclassedge.com.
Sources
- McMaster University Honours Health Sciences Program, “Level I Program”
- McMaster University Honours Health Sciences Program, “Future Students FAQs”
- Ontario Universities’ Info, “McMaster University: Honours Health Sciences”