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USMS Top 10 Swims by Jack Duffy
No individual Top 10 swims were found for Jack Duffy.
USMS Top 10 Relay Swims by Jack Duffy (2)
Below are all recorded relay Top 10 achievements for Jack Duffy since 1971.
2011 Short Course Yards
| Place | Event | Name | Age | Club | LMSC | Time |
|---|---|---|---|---|---|---|
| 8 | M35+ 400 Free | John M Duffy | 49 | NEM | New England | 3:46.70 |
2010 Long Course Meters
| Place | Event | Name | Age | Club | LMSC | Time |
|---|---|---|---|---|---|---|
| 7 | X120-159 400 Free | John M Duffy | 49 | NEM | New England | 5:02.87 |