The Carmel Marathon Weekend, due to have been held today in Carmel, Indiana, has been postponed to Sunday 31 May after the National Weather Service issued a severe-storm outlook for central Indiana that organisers judged incompatible with a safe race day. The decision, announced on Wednesday 15 April and confirmed in a runner email on Thursday, affects all events across the weekend — marathon, half marathon, 10K, 5K and relay — and moves the race to a Sunday slot for the first time in its 16-year history. It is the second successive year that weather has forced Carmel out of its scheduled mid-April date; the 2025 edition was cancelled outright after heavy thunderstorms over race morning.
In a statement, race director Todd Oliver said that the organising team had tracked the forecast closely from earlier in the week and had concluded by Wednesday evening that the risk of lightning, damaging wind gusts and pockets of heavy rain over Saturday's four-hour racing window was too high to proceed. "The safety of everyone involved — runners, volunteers, spectators, our police and first-responder partners — has always been and continues to be our top priority," Oliver said. He added that the decision had been made in consultation with the City of Carmel and local emergency management officials, rather than unilaterally by the race.
This year's event had drawn more than 6,500 registered runners across the marathon, half marathon, 10K, 5K and relay distances. Organisers said all entries would automatically roll over to the 31 May date with no action required from runners who plan to race the new date. Participants unable to make the rescheduled weekend can defer their entry to the 2027 edition at no additional cost, or take a virtual option that includes a shirt, medal and finisher pack shipped to the runner's address. Packet pick-up for the rescheduled race will take place across the Friday and Saturday of Memorial Day weekend at the host hotel.
The Carmel course is a USATF-certified, Boston-qualifying loop that runs through Carmel's Arts & Design District and along the Monon Greenway, and it has historically been one of the larger spring qualifier races in the American Midwest. Organisers acknowledged that a May date brings new logistical complications. Temperatures over the weekend of 31 May typically run ten degrees or more above those of mid-April in central Indiana, and the race medical team has said it is reviewing aid-station staffing, ice availability and cooling protocols to account for the later, warmer date. For Boston and Chicago qualifiers, the rescheduled finish times will still count toward the 2027 registration window, the organisers confirmed in their statement.
For the broader American spring calendar, a two-year run of weather disruption at Carmel is a reminder of the increasing difficulty of scheduling mid-April races across the middle of the country, a pattern that has also affected the Indy Mini, Illinois Marathon and Glass City Marathon over the past decade. Industry observers have noted that races have tended to respond in one of three ways: building in a weather-contingent rain date, introducing a more flexible refund and transfer policy, or simply moving the race to a later weekend on the calendar. Carmel's decision this year points to the first of those options, although organisers said any structural change to future dates would be considered only after this year's rescheduled edition is complete.