2021 Indianapolis 8 Hours (English Wikipedia)

"Indianapolis Wednesday Notebook – Sportscar365".
Dagys, John (October 7, 2021). "Keating, Smithson, Merrill Complete DXDT Lineups for Indy". sportscar365.com. John Dagys Media. Retrieved October 7, 2021.
Dagys, John (October 7, 2021). "Bortolotti, Mapelli Join K-PAX as FFF Withdraws Indy 8H Entry". sportscar365.com. John Dagys Media. Retrieved October 7, 2021.
Dagys, John (October 8, 2021). "Record 41 Entries for Indianapolis 8H". sportscar365.com. John Dagys Media. Retrieved October 8, 2021.
Dagys, John (October 1, 2021). "WRT, Sainteloc Spearhead Audi's Four-Car Indy 8H Bid". sportscar365.com. John Dagys Media. Retrieved October 1, 2021.
Dagys, John (October 4, 2021). "AF Corse Commits to Indy, Kyalami with Factory Ferraris". sportscar365.com. John Dagys Media. Retrieved October 4, 2021.
Dagys, John (October 6, 2021). "McLaren Factory Drivers Set for Indy 8H Effort". sportscar365.com. John Dagys Media. Retrieved October 6, 2021.
Lloyd, Daniel (October 5, 2021). "Compass Names Drivers for Indianapolis 8H Entry". sportscar365.com. John Dagys Media. Retrieved October 5, 2021.
Dagys, John (October 11, 2021). "AKKA-ASP Borrowing DXDT Mercedes Amid Freight Delays". sportscar365.com. John Dagys Media. Retrieved October 11, 2021.
Dagys, John (October 11, 2021). "Juncadella to Replace Fraga in AKKA-ASP Mercedes for Indy 8H". sportscar365.com. John Dagys Media. Retrieved October 11, 2021.
Dagys, John (October 11, 2021). "Indianapolis Thursday Notebook". sportscar365.com. John Dagys Media. Retrieved October 11, 2021.
Dagys, John (October 5, 2021). "Hawksworth Joins Smooge Toyota GR Supra GT4 for Indy 8H". sportscar365.com. John Dagys Media. Retrieved October 5, 2021.
Dagys, John (October 17, 2021). "Smooge Toyota Supra GT4 Stripped of Indy 8H Class Pole". sportscar365.com. John Dagys Media. Retrieved October 17, 2021.
Dagys, John (October 16, 2021). "Turner Withdraws BMW Entry Due to Dinan Illness". sportscar365.com. John Dagys Media. Retrieved October 16, 2021.