Did TUS-PHX-EUG-PHX-TUS recently. Since EUG was hosting the national track and field championships there was an increased demand for air travel. Plat with only 7-8K LPs before the trip.
TUS-PHX upgraded 48 hours before the flight
PHX-EUG upgraded 12.5 hours before the flight
EUG-PHX upgraded 12 hours before the flight (I noticed just #1 on the standby list was upgraded-there were several)
PHX-TUS was #2 where 7 out of 9 were upgraded following an equipment change to an A321 with 20 F seats