I think Disney's mile mile 14-17 and then 20-23 are mentally taxing.... The former is the out part of Osceola and looking into the sun. You have just left DAK and have run another mile in the parking lot before the highway. The underpass left hand bend can feel tough on the legs and then you are met with the sun and cars idling to your right for the next mile. It feels like it takes forever to get to Victory Way and the right hand turn towards the WWoS.
One gets a small reprieve in the middle miles of the stretch while touring the WWoS. For me it is a the ability to run just off course in the grass, on the cushioned track and off the roadways. I will say that if the grounds crew has recently recharged the warning track it will feel like running on the beach and not what one really wants at mile 19 and change. Smile as you come to home plate. as you are on camera.
Mile 20 through 23 are again on the road and taxing. This is where many runners are on new ground and beginning to feel it. The good news is that mile 20 is on Victory way and returning runners have the flatter side of the roadway. You also have the ability to see the eyes of those you are meeting and drawing some energy from them. Once on Osceola the real drudgery returns. Mile 21 you can begin to see the right hand corner so you know the end of Osceola is near, about 1/3 mile later its a right turn, up and over an overpass that makes another right bend and has no flat area to run. Once over that, is a down hill, mile post 22 and then another up onto Buena Vista. Hang as right as you can handle along World Dr as there is shade along this stretch. Focus on the med tent at the top of the hill but do not forget the aid station just before the hill. You can focus on the aid station since you cane see it the entire time on World Drive. Once up the hill the right side of the course has a funky curb/getter and drainage grate... Its a really short chute then a right hand turn into the back stage area of DHS. You have made it off all public streets at this point. However, the air of the race seems eerie as it is almost deadly quiet. No road, crowd or park traffic sounds at all. Mile 23 hits a good half mile into the back stage area. Before hitting the mark we run through the costuming section of the BackStage Tour - enjoy the air conditioning....
Miles 23-the end seem easier. We hit on stage DHS but there is little to no crowd on City Street. After that small stretch we turn left and pass down Commissary Lane and the crowds pick up Take a careful step until you hit Hollywood as there is a set of quick and small hills between Commissary and the Sorcerer's Hat. Just after the hat, most of us will run through a moving spectator gate. It's a unique way Disney corrals guests and alternates a small section of course so that there is little interference between racers and guests. You will see another in Epcot. Just after Hollywood and Vine we turn sharp left and right and leave through a back stage gate. The rest of the 24th mile can feel desolate but keep chanting, "Boardwalk, Yacht and Beach, Epcot and Home...Boardwalk, Yacht and Beach, Epcot and Home...Boardwalk, Yacht and Beach, Epcot and Home...Boardwalk, Yacht and Beach, Epcot and Home..." Soon we approach the aid station near the tennis courts and mile 24 at the start of the Boardwalk building. From here on out you have folks cheering. Mile 24 runs the length of Yacht and Beach, into back stage Great Britain and then onstage at Great Britain over a couple hills you may not remember and onto Mile 25 near France. Mile 26 is ahead as we leave behind Guest Services at the front of the park and then the gospel choir and finish chute.
It's really not all that bad in the last half of the race. One just needs to understand what mental games they need to carry into the race and understand that their bodies may throw some new wrench into the works in the later game. Take the first half of the race easy and then let the second half come to you. For the record, the first half of the race is 20 miles long and the last half is just a 10k