Question: Haris Bandey is an Olympian swimmer who trains at what complex in Hendon London? 
Context: Hendon North was a constituency in the former Municipal Borough of Hendon (later subsumed into the London Borough of Barnet) which returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom.  It was created for the 1945 general election as the existing Hendon constituency was too large (the estimated electorate in 1941 was 217,900 ), and lasted until the 1997 general election when the London Borough of Barnet's Parliamentary representation was reduced from four seats to three. Haris Bandey (born 14 February 1999) is a Pakistani swimmer.  He competed in the men's 400 metre freestyle event at the 2016 Summer Olympics.  He hails from East Finchley in North London and trains at the Barnet Copthall Swimming Club. Barnet Copthall is a leisure complex in Hendon, London NW4, near the border with Mill Hill.  At its centre is a stadium known for sponsorship reasons as Allianz Park, the home ground of rugby union Premiership side Saracens since February 2013. Hendon Football Club was an English football club founded in about 1876.  The club was based at Hendon, today in the London Borough of Barnet, England, and played its home games at the Hendon cricket ground in Brampton Grove, off Brent Street, London NW4.  The club appeared in the F.A. Cup between 1877 and 1887 and had one of its players selected for England in 1884. Hendon is a London suburb in the Borough of Barnet, 7 mi northwest of Charing Cross.  Hendon was an ancient parish in the county of Middlesex and has been part of Greater London since 1965.  Hendon had a population of 52,972 in 2011 and includes the Hendon, Hendon West and Colindale wards. Hendon South was a constituency in the former Municipal Borough of Hendon (later subsumed into the London Borough of Barnet) which returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom.  It was created for the 1945 general election, when the existing Hendon constituency was split into two parts, and abolished for the 1997 general election, when Childs Hill, Garden Suburb, and Golders Green wards were transferred to the new constituency of Finchley and Golders Green along with wards from the old Finchley constituency, while West Hendon ward was transferred to the new Hendon constituency. St Mary's Churchyard, Hendon or Hendon Churchyard is the churchyard of St Mary's Church in Hendon in the London Borough of Barnet.  It adjoins Sunny Hill Park, and it is part of the "Sunny Hill Park and Hendon Churchyard" Site of Local Importance for Nature Conservation.  The churchyard is important archaeologically, as Roman artifacts have been found on the site and there is evidence of Anglo-Saxon settlement. Edward R. Stone was a Olympian swimmer and diver who later became an educator. Karishma Karki (Nepali: करिश्मा कार्की ) is Nepali Olympian swimmer.  Born: July 18, 1993 in Bansbari, Kathmandu, Nepal . The Olympian and its successor the Olympian Hiawatha were passenger trains operated by the Chicago, Milwaukee, St. Paul and Pacific Railroad (the "Milwaukee Road") between Chicago and the Pacific Northwest.  The "Olympian" operated from 1911 to 1947 and was, along with its running mate the "Columbian", the first all-steel train to operate in the Pacific Northwest.  The streamlined "Olympian Hiawatha" operated from 1947 to 1961 and was one of several Milwaukee Road trains to carry the name "Hiawatha."  The "Olympian Hiawatha" was designed by industrial designer Brooks Stevens and included the distinctive glassed-in "Skytop" observation-sleeping cars.  It later featured full-length "Super Dome" cars.
Answer: Barnet Copthall