International GT is a North American racing series that includes The Stuttgart Cup, Mission Foods GT3 Cup Trophy and The Maranello Cup championships for late model Porsche and Ferrari competitors.
The 2025 Race Schedule
The 2026 Race Schedule
2026 Schedule
Feb 26-Mar 1 – Sebring
Mar 12-15 – Road Atlanta
May 21-23 – Lime Rock
Jun 11-14 – Mid Ohio
Jun 25-28 – Road America
Jul 16-19 – Watkins Glen
Sep 17-20 – VIR
Oct 2-4 – Laguna Seca
Oct 16-18 – Barber
Nov 5-8 – COTA

2025 Mission Foods GT3 Cup Trophy Champion G. Michael Merritt
2025 was a very competitive season for International GT and the Mission Foods GT3 Cup category saw some of the tightest battles all year. With a potential of 4 classes feeding into the Mission Foods GT3 Cup Championship (GT3.6, GT3.8,GT4.0,GT4.R) this category usually sees the greatest number of entries. The hard fought championship was won by G. MICHAEL MERRITT racing in a GT4.0 Porsche. Michael and his enduro co-driver EVAN SLATER had a phenomenal season with an impressive list of finishes in the five (5) events that were counted toward the Championship, never finishing lower than second place in those 20 races (15 sprints, 5 enduros). Michael came prepared for championship contention having to resort to his back-up car (an identical car to his primary) on a couple of occasions but he got the job done! Congratulations to Michael and the CHARLES WICHT RACING crew for an outstanding race season and on being the Mission Foods GT3 Cup Trophy Champion!! Second in the Mission Foods GT3 Cup Championship is CLIFF CAYER, followed in third by teammate BILL OLIVER. Both come out of the MATRIX MOTORSPORTS camp. Bill shared the enduros this year with BRUNO CARNEIRO. Matrix debuted with International GT at Sebring 2025 and have been an excellent addition to the IGT paddock! Congratulations Cliff, Bill and the entire Matrix Motorsports crew.
Join International GT at Watkins Glen International September 7-10
WHAT THE PRO’S ARE SAYING ABOUT WATKINS GLEN (part 2) Watkins Glen checks all the boxes. The fast flowing high grip surface tests any driver and car
Next Up For International GT Watkins Glen International
If there is one “can’t miss it” race track on the International GT schedule, one could argue that the historic, iconic track at Watkins Glen International, would






