Over 20 runners were sent to a hospital, and 50 others were given emergency care for heat-related problems during a running event in Milwaukee yesterday. Organizers admitted not having enough water for runners at the inaugural Summerfest Rock-N-Soul half-marathon and 10-kilometer race. It was 85-degrees with 60-percent humidity – and hydration stations were quickly emptied as early as the two-and-a-half mile mark. There was no medical aid available on the two-and-a-half mile Hoan Bridge, where witnesses saw a number of runners collapse. It was one of the first parts of the course. And race organizer Tom Schuler admitted that only the latter part of the course was heavily stocked with water. Milwaukee fire-fighters said they gave intravenous fluids to all 15 people they sent to a hospital. Private ambulances sent up to 10 more. Organizers ended the race around 10:30 yesterday morning – and officials said over 53-hundred of the 65-hundred who registered completed it.