The 1934 Mannin Moar (formally known as II Mannin Moar) was a Grand Prix that was held on 2 June 1934 at a street circuit in Douglas, Isle of Man, United Kingdom. It was the twelfth round of the 1934 Grand Prix season, but it did not count towards the championship. The race, contested over 50 laps of 3.659 mi, or 5.889 km, was won by Brian Lewis driving an Alfa Romeo Tipo B after starting from pole position.

Entries No.DriverEntrantCarDNS1 Christopher StanilandTASO MathiesonBugatti T512 Tim Rose-RichardsT. Rose-RichardsBugatti T513 Lindsay EcclesL. EcclesBugatti T514 Brian LewisN. Rees & A.W. FoxAlfa Romeo Tipo B5 Whitney StraightW. StraightMaserati 8CMDNS6 Buddy FeatherstonhaughR. FeatherstonhaughMaserati 8CM7 Freddie DixonF.W. DixonRiley 2000/68 Cyril PaulF.W. Dixon9 Charlie DodsonJohn CobbAlfa Romeo 8C 2300 Monza10 Hugh HamiltonKaye DonAlfa Romeo 8C 2300 Monza11 Dick ShuttleworthR. ShuttleworthBugatti T5112 Vasco SameiroE.F. AbecassisAlfa Romeo 8C 2300 Monza14 Raymond MaysH.W. CookERA A-TypeDNS

DNS = Did Not Start

Starting positions Pos.DriverCar Constructor1Brian LewisAlfa Romeo2Freddie DixonRiley3Christopher StanilandBugatti4Tim Rose-RichardsBugatti5Vasco SameiroAlfa Romeo6Charlie DodsonAlfa Romeo7Dick ShuttleworthBugatti8Lindsay EcclesBugatti9Hugh HamiltonAlfa Romeo10Cyril PaulRiley

Race report Rose-Richards made the best start of the line, overtaking both Staniland and Dixon to get into second place after Lewis, who would eventually stay in the lead the entire race. Staniland retired after just two laps due to gearbox problems and Rose-Richards retired with a broken water pump, leaving second and third place open for Dixon and Sameiro.

Between lap fifteen and lap forty, five drivers were forced to retire and the field was brought down to three cars. Although it was not an easy victory - his Alfa Romeo had lost a gear early in the race - Lewis took the flag after fifty laps ahead of Dodson and Paul.

Race results Pos.DriverCar ConstructorTime (Diff.)/Status1Brian LewisAlfa Romeo2:25:412Charlie DodsonAlfa Romeo+3:243Cyril PaulRiley+11:324Lindsay EcclesBugatti+11 laps (DNF - rear axle)5Vasco SameiroAlfa Romeo+12 laps (DNF - connecting rod)6Dick ShuttleworthBugatti+21 laps (DNF - connecting rod)7Freddie DixonRiley+30 laps (DNF - bearings)8Hugh HamiltonAlfa Romeo+34 laps (DNF - exhaust pipe)9Tim Rose-RichardsBugatti+36 laps (DNF - water pump)10Christopher StanilandBugatti+48 laps (DNF - gearbox)

Sources The R.A.C. Mannin www.kolumbus.fi, 1934 Mannin Moar www.kolumbus.fi, Drivers - The page of each aforementioned driver was consulted. www.isle-of-man.com, Douglas Street Circuit Racing Sports Cars, Drivers - The page of each aforementioned driver was consulted.