The high jump was Sjöberg's most successful event, as he took 4th in it. He took either 4th or 5th in his heat in the 100 metres, needing 2nd to advance to the final. In the long jump, he placed somewhere between 5th and 9th, jumping something less than 5.74 metres. He was again somewhere between 5th and 9th in the discus throw, with a distance less than 25.20 metres.
Lampros, S.P.; Polites, N.G.; De Coubertin, Pierre; Philemon, P.J. & Anninos, C. (1897). The Olympic Games: BC 776 – AD 1896. Athens: Charles Beck. (Digitally available at [1])