The set of predictions using TIP4P/2005 were conducted after the close of the challenge to look at the effect of the water model. Comparing our predicted octanol/water partition coefficients to the provided experimental data, for neat 1-octanol we obtain an AAE and RMSE of 0.70 and 0.97, respectively. For water-saturated 1octanol we obtain an AAE and RMSE of 0.97 and 1.20, respectively. We again find that our results using neat 1-octanol are in better quantitative agreement with the experimental data. Additionally, the computed error using TIP4P/2005 is less than using TIP4P. Using neat 1-octanol, the AAE and RMSE decreased by 0.13 and 0.14, respectively when using TIP4P/2005. Likewise, using water-saturated 1-octanol the AAE and RMSE decreased by 0.34 and 0.27, respectively, when using TIP4P/2005. The choice of force field is important and can be tuned to improve the accuracy of the predictions. However, here we find that the effect of the inclusion of water in the octanol-rich phase makes an even larger difference than the choice of water model.