I only caught this during yesterday's Olympic broadcast. For the men's decathlon, for the 1500m event, it showed in the upper left of the screen:
WB: 4 min and change OB: 4 min and change
I'm wondering what does OB and WB stand for? I saw OR and WR for other events (track, swimming), which is Olympic Record and World Record respectively so I assume OB and WB is Olympic B-something and World B-something.
Thanks in advance.