Here's a deep compilation for 1st and 2nd day scores at Decathlon competitions, which would cover whole competitions even dnf or disclaimer results. I would as always welcome any additions not in the lists. Yoshiaki Oikawa
Here's a unique compilation named Decathlon ranking after each event. You can see ranking transition of specific decathletes on same competition, or may use it as a guideline for predicting final around score at several events remainded and so on.
Here's a compilation for Decathlon total score ranking by each category such as running, jumping and throwing events. It would cover for the last 60 years and target for whole results without any restriction, therefore it includes marks which