Autographs of Mike Duff
Michelle Ann Duff (born Michael Alan Duff; 13 December 1939 – 23 July 2025) was a Canadian Grand Prix motorcycle road racer.
Duff's best season was in 1965, winning the 250cc Finnish Grand Prix and finishing the year in second place to Phil Read.
Duff suffered a near-fatal crash in Japan and required extensive surgery and physical therapy. The recovery was documented in the 1967 National Film Board of Canada short documentary film Ride for Your Life, directed by Robin Spry.
More about Mike Duff Wikipedia
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Traded items with a signature of Mike Duff
The most expensive item with a signature of Mike Duff (Bill Ivy, Joe Dunphy, Mike Duff signed 1965 Mallory park programme. TT, UGP.) was sold in November 2021 for £199.00 while the cheapest item (Copy of original photo signed by Mike Duff) found a new owner for £3.86 in September 2012. The month with the most items sold (2) was October 2014 with an average selling price of £10.00 for an autographed item of Mike Duff. Sold items reached their highest average selling price in September 2014 with £50.50 and the month that saw the lowest prices with £3.86 was September 2012. In average, an autographed item from Mike Duff is worth £6.53.
Most recently, these items with a signature of Mike Duff were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | HAND SIGNED AUTOGRAPHS MIKE DUFF CAN | £7.50 |  |
| HAND SIGNED AUTOGRAPHS MIKE DUFF CAN | £4.99 | |
| HAND SIGNED ORIGINAL AUTOGRAPHS MIKE DUFF CAN | £3.99 | |
| "SERIAL NUMBER 6218" MICHELLE (AKA MIKE) DUFF SIGNED BOOK & CARD ISLE OF MAN TT | £6.99 | |
| Mike Duff Hand Signed Image On Card - TT Motorcycle Racing Autograph Yamaha | £15.00 | |
| MIKE DUFF NW 200 HAND SIGNED in BLACK & WHITE 6 X 4in PHOTO AUTOGRAPH | £6.55 | |
| RARE ISLE OF MAN TT 1964 ACU OFFICIAL SCORECARD SIGNED MIKE DUFF | £4.99 | |
| SERIAL NUMBER 6218 MICHELLE ANN DUFF SIGNED BOOK AKA MIKE DUFF ISLE OF MAN TT | £4.99 | |
| THE MIKE DUFF STORY MAKE HASTE SLOWLY SIGNED MOTORCYCLE RACING BIOGRAPHY | £9.99 | |
| TT Races John Blanchard Mike Duff Signed Autograph Book Page | £10.00 | |
| TT Races Mike Duff Hand Signed Photograph | £6.99 | |
| TT Races Mike Duff TZ Yamaha Hand Signed Autograph Book Page | £10.00 | |
| TT Races Mike Duff TZ Yamaha Hand Signed Original Period Photograph | £10.00 | |
| TT Races Superbikes Michelle (Mike) Duff Hand Signed Yamaha Legends Promocard | £4.99 | |
| TT Races Tom Phillis Mike Duff Hand Signed Autograph Book Page Very Rare | £50.50 | |
