Ask Leonard Korir, Sam Chelangat how hard it is to run even a 63 minute half marathon on your debut. And for comparison, what time did Estrada run on his debut over the half? Fyi, I assume this was Edwin's first half marathon. Augustine Choge on his debut ran 63 though it can be argued that he won the race so maybe he could have run faster if challenged. Edwin's body structure(long legs and strong looking upper body) fits well with the marathon. I guarantee those times, mark my words. Iona's alumni, Stephen Chemlany has a body structure about similar to Edwin. Stephen as just an average NCAA athlete with 5K times in the 13:40s, very similar to Edwin. No one would have predicted Stephen would run 2:06 as he has done it. I see a similar trajectory for this young man. And for your info, I do not know the young man personally nor am I a fan of the school. But I know his Coach Joe Walker while he coached University of Alabama.