Some datapoints. No chasers sent for these tickets.
31 Oct 2016 SQ633 HND-SIN Y Class
Waitlisted 11/10/2016
Materialized 17/10/2016
1 Nov 2016 SQ633 HND-SIN Y Class
Waitlisted 11/10/16
Materialized 14/10/16
31 Oct 2016 SQ11 NRT-SIN J Class
Waitlisted 21/7/16
Materialized 16/10/16