The East Circuit begins on the pit straight, runs through the opening esses section — a fast, flowing sequence of direction changes that is among the most technically demanding passages on the full Suzuka layout — and then rejoins the main circuit near the Casio triangle, bypassing the bulk of the infield including the Degner Curves, the hairpin, Spoon Corner, 130R, and the chicane. This makes it a comparatively simple and short track, suited to events that benefit from a more compact venue and higher lap frequencies.
The "West" configuration uses the complementary portion of the full circuit, including the crossover overpass bridge that gives Suzuka its distinctive figure-of-eight layout. The separation between East and West is marked by the chicane between the hairpin and 200R.
The most prominent international events held on the East Circuit were two NASCAR exhibition races held after the 1996 and 1997 American seasons. NASCAR organized the NASCAR Thunder Special Suzuka as a pair of 100-lap races using Sprint Cup Series and Camping World West Series cars, with fields assembled by invitation. The 1996 race was shadowed by the death of pace car driver Elmo Langley, who suffered a fatal heart attack while driving the Chevrolet Corvette pace car through the esses during an evaluation run before the race. The pole position speed at the East Circuit was recorded at 83.079 mph during these events. During qualifying for the 1997 race, rainfall prompted Goodyear to deploy rain tyres on NASCAR's Winston Cup cars for the first time in the modern era of the sport.
In June 2010 it was announced that the East Circuit would host the Japanese round of the 2011 World Touring Car Championship season in place of the Okayama International Circuit. The venue proved a suitable host for the compact, high-frequency racing format of the WTCC. At the 2012 WTCC event at Suzuka East, the pole position lap time was 52.885 seconds, equivalent to an average speed of 94.875 mph. The circuit continued to host WTCC events through 2014 and the successor World Touring Car Cup through 2019.
The full Suzuka Circuit is operated by Honda Mobilityland and has hosted the Japanese Formula One Grand Prix since 1987, the Suzuka 8 Hours for motorcycles since 1978, and the Super GT and Super Formula championships. The East layout exists primarily to offer versatility for events and series that do not require or are not suited to the full 5.807 km course. It provides a meaningful alternative for touring car and exhibition-format events without requiring use of the full circuit infrastructure.