SRO World Challenge/8 Hour International GT
Indianapolis Motor SpeedwayAbout this event
Join USAC Flag Marshals in supporting SRO World Challenge as they return to IMS October 7-11. This is the 2026 season finale for World Challenge America which will crown champions. This weekend will also feature the International GT 8 hour race, which will be run on Saturday afternoon and evening into the dark.. Other support series running will be TC America, GT4 Sprint X, GT America, GR Supra Cup and McLaren Cup.
Event requirements
YOU MUST BE A 2026 USAC FLAG MARSHALS MEMBER TO PARTICIPATE FOR THIS EVENT.
For more information regarding USAC Flag Marshals membership, email us at imsflagchief@ix.netcom.com or go to https://usacracing.redpodium.com/2026-usac-flag-marshal-membership to register for your membership.
If you already have your 2026 USAC Flag Marshals membership you may continue to register for the event.
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