• The Dutch TT became part of the world championship series when it was first created in 1949 and Assen is the only circuit to have been part of the series every year since, making this the 70th Dutch TT that has counted towards the world championship classification.
  • In 2016 the Dutch TT was held on Sunday for the first time; all previous Dutch TT events had taken place on Saturday
  • The original Assen circuit, that was used up to 1954, measured 16.54 km. This was reduced to 7.7 km in 1955 and then in 1984 further modifications to the circuit reduced the length to 6.1 km.  The current layout has been used since 2006, with a few minor adjustments.
  • The 500cc race at the 1975 Dutch TT is the only premier-class grand prix race where the first two riders across the line have been credited with the same race time. Barry Sheene and Giacomo Agostini finished so close that the timekeepers of the day, using manual timing accurate to 0.1 sec, were unable to split them.
  • Yamaha are the most successful manufacturer at the Dutch TT since the start of the four-stroke MotoGP formula with nine victories, seven for Valentino Rossi and one each for Jorge Lorenzo and Ben Spies.
  • Honda have had six MotoGP wins at the Dutch TT with six different riders: Valentino Rossi, Sete Gibernau, Nicky Hayden, Casey Stoner, Marc Marquez and Jack Miller.
  • Ducati’s single MotoGP win at the Dutch TT came in 2008 with Casey Stoner. Ducati has had just three podium finishers at Assen in the past seven years: Andrea Dovizioso was second in 2014, Scott Redding third in 2016 and Danilo Petrucci second last year.
  • The last win by Suzuki at the Dutch TT was in the 500cc race in 1993 with Kevin Schwantz. The best results by Suzuki in the MotoGP era at the Dutch TT are 5th place finishes by John Hopkins in 2007 and Chris Vermeulen in 2009.
  • Just 0.063 second separated Valentino Rossi and Danilo Petrucci at the end of the Dutch TT last year; the sixth closest finish of the MotoGP era, after: 2006/Portugal (0.002 seconds), 2011/Valencia (0.015 sec), 2016/Italy (0.019 sec), 2003/Czech (0.042 sec), 2003/Germany (0.060 sec).
  • The rider with most GP victories at Assen is Angel Nieto with 15 wins in the 125cc and 50cc classes, followed by Giacomo Agostini who had 14 wins riding 500cc and 350cc machines.
  • Among the current riders, Valentino Rossi has been most successful at Assen with a total of ten victories, eight in MotoGP and one each in the 250cc and 125cc classes.
  • The eight Moto2 races at the Dutch TT have been won by seven different riders: Andrea Iannone (2010), Marc Marquez (2011 & 2012), Pol Espargaro (2013), Anthony West (2014), Johann Zarco (2015), Takaaki Nakagami (2016) and Franco Morbidelli (2017). Of these riders, all with the exception of West are now competing in the MotoGP class.
  • The six Moto3 races at the Dutch TT have been won by six different riders: Maverick Vinales (2012), Luis Salom (2013), Alex Marquez (2014), Miguel Oliveira (2015), Francesco Bagnaia (2016), Aron Canet (2017). Of these riders only Canet still competes in the Moto3 class.
  • Only once has the Moto3 race at Assen been won by a rider qualifying on the front row – in 2014 when Alex Marquez qualified in second place on the grid.
  • Moto3 rookie Bo Bendsneyder finished 9th at his home grand prix in 2016, which is the best result for a Dutch rider in any class of grand prix racing at the Dutch TT since Jurgen van den Goorbergh finished ninth in the 500cc race in 2001.