He started gliding in 1954 at the LSV Hude (gliding club of Hude) of which he is now an honorary member. In 1967 he moved to Australia and was granted Australian citizenship in 1971. He has flown almost 30,000 hours.
Occupation as a gliding instructor 
He joined Bill Riley's Sportavia Soaring Centre, a commercial gliding operation in Tocumwal (NSW), as flight instructor shortly after moving to Australia. From 1974, he worked during the European summers as a flight instructor at the Oerlinghausen training centre and at its branches in southern Europe, such as at Sondrio. Each year he returned to the Australia for the southern summer. At the age of 65, he retired after working thirty seasons at Oerlinghausen. In 2006, Sportavia Soaring Centre closed but the Murray Border Flying Club extended its operations to include gliding. Ingo Renner is now its chief flying instructor for gliding.
Dynamic soaring 
Records and FAI Badges 
In addition to several Australian records, he established two world records. In 1975, he and Hilmer Geissler flew a two-seat glider (Caproni Vizzola Calif A-21) a straight distance of 970.4 km from Bendigo in Victoria to Langley, a location approximately 120 kilometres west of Bundaberg in Queensland. In 1982, he flew a Schempp-Hirth Nimbus-3 around a 100 km triangular course from Tocumwal airfield, New South Wales at an average speed of 195.30 km/hr. In addition to his FAI Gliding Gold badge with three diamonds, he earned the 27th FAI 1000 kilometre badge by a 1,015.50 km flight in a Schempp-Hirth Nimbus-2 from Tocumwal airfield, New South Wales in 1980.
Achievements in competitions 
In 1976 he won the World Gliding Championships in the Standard Class. In 1983, 1985 and 1987 he was World Champion in the Open Class. He also received the Dr. Mervyn Hall Trophy by the GFA as the Australian (Open Class) Champion in 1971/72, 1972/73, 1979/80, 1981/82, 1982/83, 1983/84 and 1991/92, and the GFA Shield (Team Trophy) in the seasons 1971/72, 1984/85, 1985/86, 1988/89, 1989/90, 1990/91 and 1998/99. To date he has been Australian National Champion nineteen times.
Other awards and honours 
- Flugplatz Oerlinghausen / Neue Westfälische (in German) - accessed 2008-01-11
- " Gliding basics", The Telegraph, 27 June 1998. Accessed 24 January 2008. "Resident coach Ingo Renner is four times World Champion."
- Soaring: 29 November 2006 - accessed 2008-01-21
- SAHOF: Ingo Renner -accessed 2008-01-21
- Fluglager Sondrio 2004 (in German) - accessed 2008-01-11
- "Black day!!". Soaring. 25 July 2006. Retrieved 14 August 2011.
- GFA: Murray Border Flying Club - accessed 2008-01-21
- Helmut Reichmann (1978): Cross-Country Soaring, Soaring Society of America, ISBN 1-883813-01-8
- Australian soaring: Australian records - accessed 2008-01-21
- FAI: world records of Ingo Renner - accessed 2008-01-11
- FAI badges of Ingo Renner - accessed 2008-01-11
- SSA: World Soaring Champions - accessed 2008-01-11
- Dr. Mervyn Hall Trophy by the GFA - accessed 2008-01-11
- GFA Shield Trophy - accessed 2008-01-11
- OLC: Flights of Ingo Renner 2008 - accessed 2008-01-11
- FAI Lilienthal Gliding Medal - accessed 2008-01-11
- Australian Honours received by Ingo Renner - accessed 2008-01-22
- The Sidney Morning Herald: Greens candidate Judy Renner - accessed 2008-01-21
- Greens candidate of the 2007 New South Wales for Murray-Darling - accessed 2008-01-23