Participants take part in the Mud Day race, a 13km obstacle course, on March 24, 2017 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





Participants take part in the first Mud Day Israel obstacle course race in Tel Aviv, Israel March 24, 2017. (Photo by Baz Ratner/Reuters)





A participant takes part in the first Mud Day Israel obstacle course race in Tel Aviv, Israel March 24, 2017. (Photo by Baz Ratner/Reuters)





A participant takes part in the first Mud Day Israel obstacle course race in Tel Aviv, Israel. March 24, 2017. (Photo by Baz Ratner/Reuters)





Participants take part in the Mud Day race, a 13km obstacle course, on March 24, 2017 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





Participants take part in the Mud Day race, a 13km obstacle course, on March 24, 2017 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





Participants take part in the Mud Day race, a 13km obstacle course, on March 24, 2017 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





Participants take part in the Mud Day race, a 13km obstacle course, on March 24, 2017 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





Participants take part in the Mud Day race, a 13km obstacle course, on March 24, 2017 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





Participants take part in the Mud Day race, a 13km obstacle course, on March 24, 2017 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





A man takes part in the Mud Day race, a 13 kilometer obstacle course in Tel Aviv, Israel, Friday, March 24, 2017. (Photo by Oded Balilty/AP Photo)





A Participants suffers from a muscle cramp in his leg during the Mud Day race, a 13 kilometer obstacle course in Tel Aviv, Israel, Friday, March 24, 2017. (Photo by Oded Balilty/AP Photo)





People take part in the Mud Day race, a 13 kilometer obstacle course in Tel Aviv, Israel, Friday, March 24, 2017. (Photo by Oded Balilty/AP Photo)





People take part in the Mud Day race, a 13 kilometer obstacle course in Tel Aviv, Israel, Friday, March 24, 2017. (Photo by Oded Balilty/AP Photo)





A participant suffers from a muscle cramp in his leg during the Mud Day race, a 13 kilometer obstacle course in Tel Aviv, Israel, Friday, March 24, 2017. (Photo by Oded Balilty/AP Photo)