The third Isle of Man Tourist Trophy motorcycle race was held on Thursday, September 23, 1909, at the St John's Short Course, Isle of Man. The race was ten laps of the 15-mile 1,430-yard course, a total race distance of 158.125 miles (254.478 km). There was no limit on fuel consumption and the singles and twins, limited to 500 and 750cc respectively, ran together. The men were sent off in pairs at half-minute intervals. Giosue Giuppone became the first Italian rider to finish the race in twelfth place on a new 84x86mm (476cc) Peugeot. Ernesto Gnesa had taken part of 1908 Isle of Man TT a year before, retiring on the first lap.^[1]

Thursday 23 September 1909 – 10 laps (158+1⁄8 miles, 254.5 km) St. John's Short Course.

The 3rd International Auto-cycle Tourist Trophy[2]

Pos # Rider Bike Cyl. 500 Single & 750 Twin Open Class race classification Laps Time Speed Prizes 1 18 Harry Collier 6 hp (4.5 kW) Matchless 738cc 2 10 3:13.37.8 49.01 mph 1st Prize - Trophy and £40 2 7 Lee Evans 5 hp (3.7 kW) Indian 714cc 2 10 3:17.35.2 48.07 mph 2nd Prize - £20. 3 45 Billy Newsome 3+1⁄2 hp (2.6 kW) Triumph 499cc 1 10 3:31.10.0 44.92 mph 3rd Prize - £10 4 11 Oliver Godfrey 3+1⁄2 hp (2.6 kW) Rex 499cc 1 10 3:31.31.6 44.89 mph 4th Prize - £5 5 5 Charles Franklin 3+1⁄2 hp (2.6 kW) Triumph 499cc 1 10 3:40.31.2 43.06 mph Silver Cup and £5 5s for the 1st Private owners' machine. 6 10 Frank Applebee jun. 5+1⁄2 hp (4.1 kW) Rex 749cc 2 10 3:42.24.2 42.69 mph 7 59 J. Munroe 5 hp (3.7 kW) BAT-JAP 2 10 3:46.15.2 41.88 mph Silver Cup and £2 2s for the 2nd Private owners' machine. 8 34 Basil V. Jones 3+3⁄4 hp (2.8 kW) Premier 548cc 2 10 3:46.16.2 41.87 mph 9 38 Arthur Moorhouse 5 hp (3.7 kW) Rex 749cc 2 10 3:46.54.6 41.54 mph Gold medal presented by Rex Co. for the 1st Private owner on their machine. 10 19 Bert Colver 3+1⁄2 hp (2.6 kW) Matchless-JAP 482cc 1 10 3:55.08.6 40.36 mph 11 46 Walter Creyton 3+1⁄2 hp (2.6 kW) Triumph 499cc 1 10 3:55.10.0 40.23 mph 12 54 Giosue Giuppone 3+1⁄2 hp (2.6 kW) Peugeot 476cc 1 10 3:57.49.0 39.95 mph 13 55 John Lang 5 hp (3.7 kW) Tee-Bee-JAP 2 10 4:00.53.0 39.44 mph 14 49 William McMinnies 3+1⁄2 hp (2.6 kW) Triumph 499cc 1 10 4:04.02.8 38.84 mph 15 17 James Stewart 3+1⁄2 hp (2.6 kW) Triumph 499cc 1 10 4:10.45.5 37.88 mph 16 39 Rem Fowler 5–6 hp (3.7–4.5 kW) Rex 749cc 2 10 4:15.47.6 37.14 mph 17 40 Thomas Greer 5 hp (3.7 kW) Rex 749cc 2 10 4:25.59.6 34.93 mph 18 25 Andrew Sproston 5 hp (3.7 kW) Rex 726cc 2 10 4:36.52.2 32.13 mph 19 47 Percy Butler 5 hp (3.7 kW) Dot-Peugeot 662cc 2 10 4:58.50.0 Fastest lap: Harry Collier, 18min. 05sec. 52.27 mph (New record)

• Detailed race results
• Mountain Course map