Around a third of children in London have missed out on their first choice of secondary school, figures show.
Rising pupil numbers in the capital are putting pressure on the system to expand to create more places and recruit more teachers, with a 2% increase in applications this year.
New statistics published by the Pan London Admissions Board show that across the city, 68% of 11-year-olds got their first choice of school - meaning that around 32% missed out.
Some 89% of youngsters were offered a place at one of their top three preferences.
Peter John deputy chair of London Councils and executive member with responsibility for education said:
The figures show differences across London - in Havering, to the east of the capital, 79.08% got their first preference, while in Hammersmith and Fulham, west London, the proportion was 53.48%.