In ANW5, he competed in Baltimore and completed the Baltimore qualifying rounds, but he failed the Salmon Ladder in the city finals and did not qualify for Vegas.
In ANW6, Dan competed in St. Louis and had completed the qualifying stage and move on to the finals. In the finals, Dan failed the Rumbling Dice but he ended up placing 14th and was able to move on to Vegas. His run was cut in Vegas, but it was said that he was one of the many to fail the Silk Slider.
In American Ninja Warrior 7, he completed qualifying again in Kansas City. However, in the finals, he misplaced a ring on the Ring Toss and fell there, placing 34th overall. He was the only one to fail the Ring Toss when one of the rings was just on the edge of the peg.
Polizzi returned in American Ninja Warrior 8 after a devastating exit in the finals course last season. This time, Polizzi was more careful in the finals course and made it all the way to the Circuit Board, which he ended up placing 6th overall. His result was exact opposite with his training partner, Brandon Mears, who failed to advance this time around. Polizzi was very close to finishing stage 1, but timed out on the Flying Squirrel just before hitting the buzzer.
He returned in American Ninja Warrior 9 competing in Kansas City, Missouri. Polizzi had a strong run early on, but he made a mental mistake and dropped the bar on the Bar Hop, making the obstacle nearly impossible to complete. He still attempted to make a long lache, but just barely missed the landing platform and fell in the water. He still advanced to the city finals, placing 16th. However, out of the four Windy City Warriors (between him, Brandon Mears, Ethan Swanson, and Tyler Yamauchi) competing, he was the only one not to finish the course entirely.
Dan returned to compete in Indianapolis in American Ninja Warrior 10. After seeing his partner Brandon Mears failed early in qualifying, Polizzi was digested but finished the qualifying course with the 2nd fastest time of the night. He was very close to completing the Mega Wall, and had one hand on top, but couldn't hang on.
In the city finals his run was digested, but he made it all the way to the Spider Trap before tuckering out, which placed him 4th overall in the Indianapolis finals. This is currently his strongest performance to date in a city finals course. According to people that attended the course live, he failed the Cane Lane but that was because the obstacle fell down with him. He was given another chance at the course but did not change his shoes and failed the Spider Trap
He was digested on Stage 1, but he was the second competitor to clear with less than ten seconds left, with 09.07 remaining. This was his first time advancing to Stage 2.
Dan returned to compete in Cincinnati in American Ninja Warrior 11. His qualifying run was digested but it was shown that he had a close call on the Spin Bridge and then later failed the Sling Shot, similar to his training partner. He still advanced to the city finals by placing 19th overall. On the city finals, he cleared it for the first time along with partner, Brandon Mears, making it the first time the two of them advanced to Vegas together.
On Stage One, his run was digested, but it was shown he got through the Diving Boards, an obstacle his partner, Brandon Mears, had failed, and completed the course altogether with 7.85 seconds left.
|6||81||Failed Silk Slider (First Stage)||All cut. Slid of platform|
|8||30||Failed Flying Squirrel (First Stage)||Digest. Timed out|
|10||26||Failed Deja Vu (Second Stage)||Digest|
|11||Failed Snap Back (Second Stage)|