Guido Macchi
| Challenge | Status | End | Votes | Entries | Players |
|---|---|---|---|---|---|
| An Amazing Smile | closed | 4 years, 8 months ago | 9000000 | 11991 | 6040 |
| A Shot To Remember | closed | 1 year, 1 month ago | 10100000 | 17413 | 4344 |
| Kids in Black & White | closed | 6 months, 2 weeks ago | 8406253 | 7617 | 2511 |
| Humorous Shots | closed | 4 months, 2 weeks ago | 5547984 | 4861 | 2363 |
| Photographer's Choice | closed | 2 months, 2 weeks ago | 158797 | 795 | 782 |