Acute pancreatitis due to pancreatic ischemia is a rare condition.In this case report we describe a 57-year-old male who developed an acute necrotizing pancreatitis after running a marathon and visiting a sauna the same evening, with an inadequate fluid and food consumption during both events.Pancreatic ischemia imposed by mechanical and physical stress and dehydration can induce the development of acute pancreatitis. Separately, these factors are rare causes of ischemic acute pancreatitis. But when combined, as in this particular case, the risk of an acute necrotizing pancreatitis cannot be neglected.