Prototype Challenge
IPC Sebring Race Replay
Watch the full highlights package from last month’s IMSA Prototype Challenge presented by Mazda race at Sebring…
More in Prototype Challenge
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Kasemets Wins Final IPC Race, Title at Road Atlanta
Tonis Kasemets takes win, championship title Friday at Michelin Raceway Road Atlanta...
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Michelin Road Atlanta Notebook
Check out pre-event news, notes and stats ahead of 25th anniversary Motul Petit Le...
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Kasemets Keeps Pushing, Claims Third Win of Season
Wulver Racing driver continues top form in Sunday's IMSA Prototype Challenge race at VIR...
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IMSA Sets Dates for Season-Ending Awards Celebrations
Sanctioning body confirms dates for end-of-season awards ceremonies...