The Manx Grand Prix motorcycle races are held on the Isle of Man TT Course (or 'Mountain Circuit') annually, usually at the end of August and early September.

The MGP or Manx (as it is more commonly known) is considered to be the amateur rider's alternative and a learning experience for the Isle of Man TT races held in May/June.

[2] The event consists of six three or four-lap races of the 60.70 km (37.72 mi) circuit[3] which begins at the TT Grandstand in Douglas, the island's capital.

Chris Palmer (former British 125cc champion) and the late Richard Britton both followed this route in 2005 aboard Manx Nortons.

Carolynn Sells was entered into the Guinness World Records as the first female winner on the Snaefell Mountain Course of the Ultra-Lightweight event at the 2009 Manx Grand Prix.

The MGP is organised by the Manx Motor Cycle Club (MMCC) based on the rules and regulations of the Auto-Cycle Union (ACU) which governs most British motorcycle events.

As mentioned previously, newcomers must wear a coloured bib (usually orange or yellow) during practice sessions to distinguish themselves to other riders.

Riders are given the opportunity to familiarise themselves with the course and must complete a minimum number of laps at a satisfactory speed in order to qualify for the races held subsequently.

'King of the Mountain' Joey Dunlop, the second most successful TT rider of all time with 26 victories, also tried his hand at the MGP on a Classic Aermacchi and achieved a podium finish.

The Manx Motorcycle Club relies exclusively on entry fees and donations to fund the awards.

Crookall Trophy can only be won once, as the winner of the Senior Manx Grand Prix is then obliged to enter the TT Races.

Unlike the TT there is no funfair on Douglas Promenade but various entertainments include visiting and local music acts and the Manx 3-day Trial.