List of doping cases in athletics

Columns: Name | Country | Event | Date of violation | Banned substance ( s ) / Anti-doping rule violation | Sanction
Ilja Nikolajev | Estonia | Marathon | 2013 | Biological passport | 2 years | Lars Arvid Nilsen | Norway | Shot put | 1987 1992 | Probenecid , Anabolic steroids Metenolone | 2 years Life ban | Cyrus Njui | Kenya | Long distance | 2015 | Methylephedrine | 8 months | Siyabonga Nkonde | South Africa | Cross country running | 2014 | 6 months | Nadia Noujani | Morocco | Long distance | 2014 | EPO | 2 years | Jonathan Nsenga | Belgium | Hurdling | 1997 | Ephedrine | Juan Núñez | Dominican Republic | Sprinting | 1983 | Fencamfamine | Liliya Nurutdinova | Russia | Middle distance | 1993 | Stanozolol | 4 years

Example questions:
What is the name of the oldest suspended athlete with a last name that starts with ' N ' in a long distance event ? | What is the name of the second oldest suspended athlete with a last name that starts with ' N ' from African country ? | What is the name of the youngest athlete with a last name that starts with ' N ' who was sanctioned only once , with 2 years ban ? | What is the name of the youngest athlete with a last name that starts with ' N ' who was sanctioned only once and after 2010 ?

Answers:
John Ngugi Kamau | Cosmas Ndeti | Nadia Noujani | Cyrus Gichobi Njui