Grandma's vs Twin Cities: Which Is the Better BQ?

Published October 22, 2026 · Estimates, updated each registration cycle

Short answer: for a runner chasing Boston 2028, Grandma's Marathon is the better pick in 2027, and the reason is the calendar more than the course. Both Minnesota races are certified, both count at full value under the downhill rule, and both are realistic places to run a qualifier. But Twin Cities is moving to mid October starting in 2027, which pushes its finish past Boston registration week and into the following qualifying window. Grandma's, on Saturday June 19, 2027, lands about three months before the Boston 2028 application opens. Confirm both dates on the official race pages before you register; the Twin Cities date is still listed as pending permits.

The date change that decides it

Twin Cities organizers announced that the race weekend moves from the first Sunday in October to mid October from 2027 on, after several warm editions and the 2023 race that was cancelled on race morning for heat. The 2027 marathon is planned for Sunday October 17, 2027. Boston applications are filed in September, so an October 17 finish cannot be used for the 2028 race. It becomes a qualifier for 2029 instead. That is not a flaw, it is just a different plan: if you are aiming at Boston 2029, a cooler mid October Twin Cities is arguably more attractive than before. If you want to run Boston in April 2028, it is off the table. The 2026 race kept its early October date, so a Twin Cities result from this month already sits inside the 2028 qualifying window.

The courses side by side

Grandma's runs point to point down the North Shore highway from Two Harbors into Duluth. It loses a little elevation overall, far below the 1,500 foot threshold of the downhill adjustment, and it rolls gently the whole way, with Lemon Drop Hill near mile 21 as the one climb people remember. Navigation is simple: one road, long straights, very little tangent hunting. Twin Cities runs from downtown Minneapolis past the lakes and along the river parkway to the State Capitol in St. Paul. The first twenty miles are shaded and kind, then Summit Avenue climbs steadily from about mile 20 to 23 before a downhill finish. On paper the two are close. In practice Twin Cities punishes a fast first half harder, because its climb is longer and comes at the same tired point in the race. Our full reviews cover the details: Grandma's and Twin Cities.

Weather

This is where the comparison flips. Mid June on Lake Superior is a coin flip: a wind off the lake gives you cool, still air, a wind from inland gives you a sunny, humid morning with little shade, and a bad year costs several minutes. Mid October in the Twin Cities is, on average, cooler and more stable, and the new date was chosen precisely to lower the heat risk. If weather variance scares you more than the timing, Twin Cities is the steadier bet, as long as you accept the later Boston year. For why conditions move results across a whole season, see weather and Boston cutoffs.

The second chance factor

A June qualifier leaves room for a backup race in August or early September if the day goes wrong, still in time for registration week. A mid October qualifier leaves almost a full year before the following registration, which is plenty of room too, just for a later Boston. Either way, do not stake a season on one race. The spring vs fall qualifier guide walks through how the calendar shapes your options.

What to aim for

The 2027 Boston race cut at 5:17 under the standard. The 2028 cutoff is not known, so treat any target as a planning number, not a forecast. Take a 40 year old woman with a standard of 3:35:00. With a planning buffer of 6:00 she would aim for about 3:29:00, or 7:58 per mile. On either course, run the first 20 miles at or slightly under that pace rather than banking time, because both races save their hardest climb for the final 10K.

Verdict

Pick Grandma's if Boston 2028 is the goal: the June date sits perfectly before registration and leaves a backup. Pick Twin Cities if you are planning for Boston 2029 or simply prefer cooler, more predictable weather and can live with Summit Avenue. Then put your age, gender and goal time into the cutoff predictor to see how that buffer would have fared against every real Boston cutoff since 2014.