( CNN ) -- An Illinois woman died Monday after participating in New York City 's Nautica Triathlon on Sunday , the second athlete to do so . Amy Martich died at St. Luke 's Roosevelt Hospital Center in New York City -- a day after a man died after participating in the swim portion of the triathlon , according to hospital spokeswomen Elizabeth Dowling and Terry Cavanaugh . New York Police Department spokesman Lieutenant John Grimpel identified the deceased athletes as Martich , 40 , and Mike Kudryk , 64 . Bill Burke , director for the triathlon , told CNN he was `` deeply saddened '' by the participants ' deaths . Martich , of Elmhurst , Illinois , was rescued halfway through the swim portion of the triathlon and transported to 79th Street 's Dock A , where she was treated by on-site emergency medical staff , Burke said . Kudryk was two-thirds of the way through the swim portion of the triathlon when a CNN employee , also competing , noticed a man floating on his back with his head beneath the water . `` It did n't look like he was breathing , his lips were blue , '' remembered Jeff Kepnes , supervising producer for CNN Special Events . Shortly after , Kepnes says he struggled to help lift Kudryk 's body onto a rescue sled along with another rescuer . `` We tried to maneuver him , '' Kepnes said . `` He was heavy , he was n't moving . We were being weighed down . '' This is the third triathlon for Kepnes , who said the water was the choppiest he 's ever seen it on Sunday . `` I did notice that there were more people going into safety stroke . There were more conversations with rescue in the kayaks and Jet Skis , '' Kepnes said . Kudryk was driven to one of four New York City Fire Department boats stationed in the river , where he was treated by paramedics on board before being taken to the emergency medical station on Dock A , Burke said . Both Martich and Kudryk were transferred to St. Luke 's Roosevelt Hospital Center just after 8 a.m. on Sunday , Burke said . Kudryk died shortly after arriving at the emergency room , Cavanaugh said . The Nautical New York City Triathlon is an Olympic distance race , consisting of a 1,500-meter swim , a 40-kilometer bike ride and a 10-kilometer run , according to the event 's website . Burke said the swim portion of the triathlon , which took place in the Hudson River Sunday , was staffed with `` 32 lifeguards , 53 kayakers patrolling the water , three launch boats , two Jet Skis with sleds '' and three NYPD boats equipped with divers and paramedics . Burke said he initially delayed the race by several minutes due to inclement weather . `` I was watching a line of thunderstorms come toward the course , I was waiting to see if it was going to materialize and if we would have a lightning problem , '' he said . In addition , Burke said an accident on the Hudson Parkway , which caused a downhill portion of the bike path to be slicked by oil and gasoline , pushed the race 's starting time back by about 40 minutes . Burke said he got a phone call from NYPD that the bike path was cleared by 6:19 a.m. , and the race began by 6:30 a.m. Manhattan Borough president Scott Stringer sent a letter to Burke Monday requesting a `` top to bottom review of the safety protocol for the triathlon , '' he told CNN . `` New Yorkers signed up for a triathlon -- not a game of Russian Roulette , '' Stringer said in a press release Monday . CNN 's Kristina Sgueglia and Kristen Hamill contributed to this report .
Man had been rescued halfway through swim portion of race . Man who died Sunday also rescued from water . The race president asks for review of safety protocol .