Can rain delays help boost a TV audience? NASCAR got another chance to find out with Sunday’s Monster Energy NASCAR Cup Series round at Michigan, delayed for several hours by poor weather. After FOX’s coverage of the race finally got going, it peaked at a 2.20 rating, averaging 3.7 million household viewers. That’s up a tick from last year’s NASCAR Pocono Cup race that was run on the same date (2.18 rating /3.6m viewers, although that event was shown on FS1 rather than the broadcast network) and comfortably ahead of last week’s Pocono Cup race on FS1 (1.63/2.67m).

Formula 1 got a North America-friendly time slot and a broadcast network boost for live coverage of the Canadian Grand Prix on ABC, and reaped a 0.64/969,000 viewers. That’s down from a 0.80/1.2m for this race on NBC last year, though, and well off the 1.04/1.6m that tuned in for the Monaco GP replay on ABC that followed the Indianapolis 500.

The Verizon IndyCar Series was back under the lights Saturday night at Texas Motor Speedway, and NBCSN’s telecast of the race scored a 0.21/336,000 viewers, down from a 0.35/561,000 viewers last year.

The NHRA Mello Yello Drag Racing Series at Virginia Motorsports Park scored a 0.24/374,000 viewers for coverage of Sunday’s eliminations on FS1. Last year’s finals at Englishtown on this date scored a 0.37/567,000, also on FS1.