Roy Manley (Leroy Slivinski) boxer
- bouts
- 28
- won
- 21
- lost
- 2
- draw
- 5
- Status
- inactive
- Division
- welterweight
- Debut
- 1920-05-14
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1926-09-27 | Dave Cook | LLLLWL | Town Hall, Scranton | DRAW Points |
| 1926-09-13 | Dave Cook | WLLLLW | Town Hall, Scranton | WIN Corner retirement |
| 1926-09-10 | Mike O'Dowd | LL | Stroudsburg | WIN KO |
| 1926-08-20 | Johnny McDade | WLLLDL | New Oneonta Pavilion, Harveys Lake | WIN KO |
| 1926-03-23 | Gene Cardi | WWLLWW | South Main Street Armory, Wilkes-Barre | LOST Technical knockout |
| 1926-02-12 | Joe Hisko | debut | Gaiety Theatre, Wilkes-Barre | WIN Technical knockout |
| 1923-10-12 | Tiger Smith | WWWLDL | Arena, Syracuse | LOST Technical knockout |
| 1923-09-28 | Vince Coffey | DWWWLW | Arena, Syracuse | WIN Points |
| 1923-06-22 | Joe Saviola | WWWLWD | Arena, Syracuse | DRAW Points |
| 1923-06-01 | Joe Saviola | WWWWLW | Arena, Syracuse | DRAW Points |
| 1923-05-04 | Nate Lewis | WDLLWD | Arena, Syracuse | WIN Points |
| 1923-04-30 | Carl Smith | LLLLLW | Rochester | DRAW Points |
| 1923-04-27 | Humbert Brady | DLWWW | Arena, Syracuse | WIN Points |
| 1923-04-16 | Jack Prybella | WLDWLL | Convention Hall, Rochester | WIN Points |
| 1922-07-10 | George Weyman | DLWWWW | Williamsport | WIN |
| 1922-01-02 | Jack Thomas | WWLLWW | Arena, Syracuse | WIN Points |
| 1921-12-16 | Al Cross | WL | Arena, Syracuse | DRAW Points |
| 1921-11-24 | Young Hobby | debut | Town Hall, Scranton | WIN Technical knockout |
| 1921-11-04 | Sammy Baker | LDLDLL | Arena, Syracuse | WIN Points |
| 1921-10-21 | Moe Herscovitch | LWWWLW | Arena, Syracuse | WIN Points |
| 1921-10-14 | George Weyman | WWWWWD | Majestic Theatre, Wilkes-Barre | WIN |
| 1921-09-16 | Frankie Philbin | DWDLL | Majestic Theatre, Wilkes-Barre | WIN KO |
| 1921-03-11 | Young Leach Cross | LDWWWW | Arena, Syracuse | WIN Points |
| 1921-02-25 | Joe Burns | LLLLLL | Arena, Syracuse | WIN Points |
| 1921-02-18 | Joe Ryan | WWWWLL | Arena, Syracuse | WIN KO |
| 1921-02-11 | Johnny Cooney | WWWLLL | Broadway Auditorium, Buffalo | WIN Points |
| 1921-02-05 | Red McGuire | debut | Broadway Auditorium, Buffalo | WIN KO |
| 1921-02-04 | Sam Wilbert | LWWLLL | Arena, Syracuse | WIN Technical knockout |
| 1920-09-03 | Eddie Shugrue | L | Olympic A.C., Wilkes-Barre | WIN |
| 1920-07-20 | Silent Cawley | LW | South Main Street Armory, Wilkes-Barre | WIN Technical knockout |
| 1920-07-05 | Leo Leonard | LWWWDW | Valley View Park, Jenkins Township | LOST |
| 1920-06-22 | Nick Moon | W | South Main Street Armory, Wilkes-Barre | WIN Technical knockout |
| 1920-05-14 | KO Sweeney | L | Armory, Plymouth | WIN |