I've seen posts with the tasks for the Timed Research showing screenshots with "win a raid" (e.g. https://www.reddit.com/r/TheSilphRoad/comments/1o9hjjk/rayquaza_raid_day_research/ ) .
The research just went live for my time zone (Europe), and it's showing "win 2 raids" instead. The other tasks are unchanged.
Edit: it seems the task was always to win 2 raids, as indicated by the two-segment bars in the original screenshots that I overlooked. They just changed the wording.
by 5nnn