Allen, who had hip flexor surgery in November, and Rudolph, who underwent hamstring surgery, said they were satisfied with their performances during Pro Day on campus.
Other Irish players participating included running back Robert Hughes, wide receiver Duval Kamara, linebacker Kerry Neal, linebacker Brian Smith, guard Chris Stewart, corner back Darrin Walls, and nose guard Ian Williams.
"It was a good experience for me to get back out here and run today, especially after my surgery," said Allen, who led the Irish in rushing as a sophomore and junior.
"The hip felt great. It is finally back to 100 percent. It was tough to stay off it when I really wanted to train, but I did, and for the last month it has felt good. Right now, I'm feeling pretty calm about draft day. After a Pro Day like this, the only thing you can do is wait. There is not much you can do about it. I'm going to continue training because I have a class to finish out this spring."
The 6-foot-6, 265-pound Rudolph decided to leave early for the NFL. He suffered a severe hamstring injury that required surgery and missed the final seven games last season.
"The main objective for me was to get out there and show everyone that the hamstring is a thing of the past," said Rudolph, who ranked fourth in school history in career receptions (90) and receiving yards (1,032) by a tight end.
"And I think I did that today. The best thing about today was the ability to go out there and compete. The volume of the work, I think that we were out there for three and a half hours and to be able to go through that and show that I am completely healthy was great."