I was nervous going into Rocky Raccoon. My recovery from Bandera 100K was slow. I still had pain under my left kneecap and a large blister on my right foot was still raw. Since Bandera, I significantly reduced my running and took daily dosage of NSAID. Because of the potential of rain and very cold weather, I packed my drop bags with lots of clothing, raingear, gloves, another pair of shoes and several pairs of socks. I also put several bottle of Ensure and Mountain Dew in the bags. The day before the race Britt (DH) and I drove to Huntsville, pickup my package and checked into the motel Super 8. Nice, new motel but someone was smoking pot giving me a headache. My pre-race dinner of chicken-fried steak, mashed potatoes, fried mushroom and fried crawfish tails was at the Country Steak Inn. Race day was a cold 28F but luckily no rain. At 6 AM, the 100 milers started. The first 3-4 loops went fast. The roots were easy to navigate. There were some really muddy spots but overall the course was in good condition. I told Britt that I should finish each loop in 4-5 hour. My time was between 4 to 4 ? h per loop. My 50 mile split was just 10 minutes slower than my time at Sunmart. I was even able to run at night, which was a first for me. I guess walking around at Bandera in the night helped. For each loop, I drank two Ensures and stopped at each aid station for a cup of Heed electrolyte drink. The only problem I had was very frequent pit stops to relieve my bladder. I finished my 4th loop at around 1:30 AM. I put on a lot more clothing since it has gotten cold again. At this pace, I would finish 2 h ahead of last year. By this time, my hands and feet were frozen. I also noticed that my vision was getting blurry. I started the 5th loop at 2 AM. Once I got onto the trails, my head lamp and waist lamp went dimmed. The glow sticks on the trails appeared to also fade. I ended up getting lost several times until I finally make it onto the jeep road. Once onto the jeep road, it was easy to follow the trail again. But, both my lights appeared to be getting even dimmer. After the jeep road, I was back on the single track trails where I got lost again and again. I finally made it to the Dam Road aid station with my other drop bag. I picked up my spare flashlight. But, the flashlight also seemed dimmed. When day break came, I looked around and realized my vision had deteriorated significantly. Somehow I made it to the last aid station and told the volunteer, “I can’t see a thing.” She told me I only had 2.8 miles to go, just go slow. So I walked slowly out of the aid station. A few minutes out of the aid station, I see a blob or tree. Assuming it was a fellow runner/walker, I mumbled “Good job!” It called out my name and turned out to be Britt who walked into the trails to find me. He ended up guiding me to the finish line. By the time I was at the finish line, I was so relieved since by then I was totally blind. I finished 12 minutes faster than last year. At the end of the race, Britt had a cold Miller Lite waiting for me! The medical person examined me after the race. Noted my swollen hands, legs, and eyes, and concluded I was either over hydrated or had too little electrolyte. The loss of vision was due to corneal edema, which progressed from blurred vision and the appearance of halos around lights then all the way to temporary blindness. My vision returned in a few hours after eating some salty food. I was able to watch the Superbowl later on. For those who asked me whether I needed a pacer, I probably should have taken you up on the offer. Factors that can cause low blood salt or hyponatremia are being a slow runner, female, and taking NSAIDs. I fit all three criteria. The cooler weather for the race and over hydrating prior to the race contributed. I did carry electrolyte capsules and would have taken it if I notice swelling in my hands, which is my first indicator for low electrolyte. However, since I was wearing gloves, I didn’t notice the symptoms. But, something should have clicked since I was making so many pit stops during the race. I checked my head lamp, waist lamp, and flashlight at home later, they were all working well. It was just my eyes not working. So to conclude, I had a pretty good race up to mile 80. Next time, I’ll have to pay more attention to my hydration and electrolyte level. Also, the extra pair of shoes in the drop bag will be a size larger rather than a ? size smaller. I couldn’t change out of my wet, muddy shoes during the race because my shoes were too small for my swollen feet.