Complex sentence: In 2002 he broke the British indoor shot put record and in 2003, the outdoor record-up to that point, both had been held by Geoff Capes since the late 1970s.
Split into simpler sentences: In 2002 he broke the British indoor shot put record and in 2003, the outdoor record. Both records were previously held by Geoff Capes since the late 1970s.