William Lyon Mackenzie Collegiate Institute
Toronto, Ontario · Toronto District School Board
Term dates 2026-2027
Full TDSB calendar →William Lyon Mackenzie Collegiate Institute follows the TDSB Secondary - Semestered calendar, which runs Sep 8, 2026 to Jun 28, 2027: 187 instructional days, 7 PA days, 2 exam periods, with winter break Dec 21 to Jan 1 and mid-winter break Mar 15 to Mar 19.
- First day
- Tuesday, September 8, 2026
- Last day
- Monday, June 28, 2027
- PA days
- 7
- Breaks
- Winter Break, Mid-Winter Break
Printable calendar
TDSB dates on one printable page.
EQAO results & rankings
At or above the provincial standard, 2024-2025. Ranked against every Ontario school with published results for the same assessment.
Grade 9 Mathematics
Good- Ontario
- #102
- of 751
- Percentile
- 87
- TDSB
- #13
- of 71
OSSLT Literacy
Good- Ontario
- #49
- of 758
- Percentile
- 94
- TDSB
- #4
- of 71
Source: EQAO Open Data (2024-2025). EQAO measures curriculum expectations only, it doesn't capture everything that makes a great school.
How it compares in Toronto
Ranked against the other 79 secondary schools in Toronto by mean EQAO percentile across the assessments each school sat.
A percentile of 50 means half of Ontario's schools scored lower on the same assessments. Only schools with published 2024-2025 results are counted.
Closest secondary schools
The nearest schools teaching the same grades, with how each placed on EQAO.
| School | Distance | Mean EQAO percentile |
|---|---|---|
| Northview Heights Secondary School Toronto | 2.7 km | 56 |
| Downsview Secondary School North York | 2.8 km | 5 |
| Tre-Add - Rexdale Toronto | 2.8 km | Not published |
| James Cardinal McGuigan Catholic High School Toronto | 2.8 km | 40 |
| Madonna Catholic Secondary School Toronto | 2.9 km | 28 |
Report Card ranking
Where the Fraser Institute's Report Card 2025 places this school among all ranked Ontario secondary schools.
Fraser Institute rank
→ No clear trend#33 of 747 Ontario secondary schools
- Percentile
- 96
- 5-year rank
- #19
- 5-year rating
- 8.7
Figures quoted from the Fraser Institute’s Report Card on Ontario’s Secondary Schools 2025 (school year 2023/2024), where this school is listed as “William Lyon Mackenzie, Toronto”. The rating combines EQAO results, gender gaps and, for secondary schools, graduation and credit-completion rates. Full report cards: compareschoolrankings.org ↗
Ranking report
William Lyon Mackenzie Collegiate Institute’s full results in one printable page.