claim: A player-coach has coaching responsibilities.
evidence: The marathon at the World Championships in Athletics has been contested by both men and women since the inaugural edition in 1983 .. marathon. marathon. World Championships in Athletics. World Championships in Athletics. It is the second most prestigious global title in the discipline after the marathon at the Olympics .. marathon. marathon. marathon at the Olympics. marathon at the Olympics. From 1997 to 2011 it hosted the World Marathon Cup team event .. World Marathon Cup. World Marathon Cup. It currently forms part of the World Marathon Majors circuit , which includes the six top annual races .. World Marathon Majors. World Marathon Majors. The competition format has separate men 's and women 's races , which both serve as a straight final .. Participation typically numbers between sixty and eighty runners per race .. The event usually starts and ends in the main stadium , with the rest of the race taking place on the surrounding roads of the host city .. The championship records for the event are 2 :06 :54 hours for men , set by Abel Kirui in 2009 , and 2 :20 :57 hours for women , set by Paula Radcliffe in 2005 .. Abel Kirui. Abel Kirui. Paula Radcliffe. Paula Radcliffe. championship records. List of World Championships in Athletics records. The world record has never been broken or equalled at the competition by either men or women , reflecting the lack of pacemaking and athletes ' more tactical approach to championship races .. world record. marathon world record progression. pacemaking. pacemaker ( running ). Catherine Ndereba is the most successful athlete of the event , having won two gold medals and one silver medal in the women 's marathon .. marathon. marathon. Catherine Ndereba. Catherine Ndereba. Four other athletes have won the World Championships marathon twice  : Abel Anton , Jaouad Gharib , Abel Kirui and Edna Kiplagat -- all of whom had back-to-back victories .. Abel Kirui. Abel Kirui. Edna Kiplagat. Edna Kiplagat. marathon. marathon. Abel Anton. Abel Anton. Jaouad Gharib. Jaouad Gharib. Kenya is the most successful nation in the discipline , having won eight gold medals overall -LRB- four in each division -RRB- .. Kenya. Kenya at the World Championships in Athletics. Japan is the next most successful , with three gold medallists , and shares the highest medal total of fourteen with Kenya .. Kenya. Kenya at the World Championships in Athletics. Japan. Japan at the World Championships in Athletics. Spain has won three gold medals , while Ethiopia has won six medals in the men 's race -LRB- the second highest after Kenya -RRB- .. Kenya. Kenya at the World Championships in Athletics. Spain. Spain at the World Championships in Athletics. Ethiopia. Ethiopia at the World Championships in Athletics