Jordanovichy
Credit Whore 2016
I've bulked this out with a few nicher milestones, important ones in bold
1 - Sea Dragon (Rainbow Park) 2002
13 - Turbo (Brighton Pier), 2010 (first inversion)
50 - The Big One (Blackpool Pleasure Beach) 2013
51 - Big Dipper (Blackpool Pleasure Beach) 2013 (First wooden coaster)
100 - Sheikra (Busch Gardens Tampa) 2014
150 - Crazy Caterpillar (Tir Prince) 2014
200 - Der Vleermuis left (Plopsaland de Panne) 2015
250 - Gadget's Go Coaster (Tokyo Disneyland) 2015
300 - Left Wild Mouse (Nagashima Spaland) 2015
345 - Joris en de Draak Fire (Efteling) 2015 (25th wooden coaster)
350 - The Rattlesnake (Knowsley Safari Park) 2016
400 - Starry Sky Ripper (World Joyland) 2016
424 - Unknown (Lianhuachi Park) 2016 (100th Asian coaster)
450 - Dino Roller (Flamingoland) 2016
500 - Katun (Mirabilandia) 2016
550 - Half Pipe (Sarkanniemi) 2017
597 - Teddy Bear (Stricker's Grove) 2017 (50th wooden coaster)
600 - Storm Chaser, (Kentucky Kingdom) 2017
613 - Flight of Fear (King's Island) 2017 (100th North American coaster)
650 - Ravine Flyer II (Waldameer) 2017
1 - Sea Dragon (Rainbow Park) 2002
13 - Turbo (Brighton Pier), 2010 (first inversion)
50 - The Big One (Blackpool Pleasure Beach) 2013
51 - Big Dipper (Blackpool Pleasure Beach) 2013 (First wooden coaster)
100 - Sheikra (Busch Gardens Tampa) 2014
150 - Crazy Caterpillar (Tir Prince) 2014
200 - Der Vleermuis left (Plopsaland de Panne) 2015
250 - Gadget's Go Coaster (Tokyo Disneyland) 2015
300 - Left Wild Mouse (Nagashima Spaland) 2015
345 - Joris en de Draak Fire (Efteling) 2015 (25th wooden coaster)
350 - The Rattlesnake (Knowsley Safari Park) 2016
400 - Starry Sky Ripper (World Joyland) 2016
424 - Unknown (Lianhuachi Park) 2016 (100th Asian coaster)
450 - Dino Roller (Flamingoland) 2016
500 - Katun (Mirabilandia) 2016
550 - Half Pipe (Sarkanniemi) 2017
597 - Teddy Bear (Stricker's Grove) 2017 (50th wooden coaster)
600 - Storm Chaser, (Kentucky Kingdom) 2017
613 - Flight of Fear (King's Island) 2017 (100th North American coaster)
650 - Ravine Flyer II (Waldameer) 2017