Participants in a certain road race competed not only against the entire field, but also against several smaller subfields based on age, racing experience, and geographic location. For each of the participants in this road race, the table shows the ranking of the participant's race completion time (RCT) within each subfield in which they competed. For example, the table shows that Participant 13's RCT was third-fastest in Subfield G and fifth-fastest in Subfield H. Note that no two of the participants had the same RCT.