2019 Online Round
18 January 2019 (FRI) at 6:00 PM – 27 January 2019 (SUN) at 11:59 PM
Online
2019 Onsite Round
6–7 April 2019 (SAT–SUN)
Ateneo de Manila University
2019 IOI Pre-Selection Training
8 April 2019 (MON) – 19 May 2019 (SUN)
Online
20–23 May 2019 (MON–THU)
Ateneo de Manila University
2019 IOI In-House Training
24–26 May 2019 (FRI–SUN)
Silang, Cavite
2019 IOI
4–11 August 2019 (SUN–SUN)
Baku, Azerbaijan