These are the official results of the Men's Decathlon competition at the 1988 Summer Olympics in Seoul, South Korea. There were a total number of 39 participating athletes, with five competitors who didn't finish the competition.
Records
These were the standing world and Olympic records (in points) prior to the 1988 Summer Olympics.
(*) Originally score according to the 1962/1977 tables.
(**)Score according to the 1985 tables.
Thompson's mark was not a world record in 1984, but when the 1985 tables came into use, his mark became the record. They were both given credit to the world record.
References
Athletics at the 1988 Summer Olympics – Men's decathlon Wikipedia(Text) CC BY-SA