User stickers acting as game pieces for Pick'Em Challenge and Fantasy Game can be accessed using the following HTTP GET request: https://api.steampowered.com/ICSGOTournaments_730/Upload Tournament Predictions/v1?key=XXX POST body data: event=9&steamid=765XXX&steamidkey=AAAA-AAAAA-AAAA§ionid=15&groupid=29&index=0&pickid=57&itemid=429500386 User's steamid and correct user's authentication code must be supplied.It is possible that all five submitted items will have different itemids returned after this call completes.When website or application Steam Web API key is correct, then status code HTTP 403 Forbidden may be returned from Web API calls that require a valid pairs.As soon as the match starts, predictions for that match can no longer be placed or changed, and HTTP 410 Gone status code will be returned.Status code HTTP 412 Precondition Failed can be returned when placing a prediction for a particular matchup is not allowed because previously placed upstream predictions are inconsistent with the new value, or when placing or clearing a prediction for a particular matchup is not allowed because previously placed downstream predictions depend on the prediction for that matchup.Schema IDs of professional players and corresponding IDs of sticker items owned by the user must be supplied to match the positions in which professional players should appear on the fantasy roster lineup.
When users use their player autograph for fantasy roster pick, that sticker will be locked until the end of the tournament.
Tournament day section may or may not be unlocked to accept fantasy lineups at a later time or date.
If user wants to use a professional player for their fantasy lineup, but they don't have a corresponding player autograph sticker for that player, then website or application may direct the user to purchase a player autograph sticker from Steam Community Market using the following URL containing the tag of the desired professional player that can be found in This response demonstrates that user's first four items preserved their itemids, but last item with itemid=4295003888 should no longer be used and a new item with itemid=4295003896 should be used instead.
Fantasy lineup can be uploaded using the following HTTP POST request: https://api.steampowered.com/ICSGOTournaments_730/Upload Tournament Fantasy Lineup/v1?
key=XXX POST body data: event=9&steamid=765XXX&steamidkey=AAAA-AAAAA-AAAA§ionid=N&pickid0=30305781&itemid0=4295003892&pickid1=64640068&itemid1=4295003893&pickid2=7223652&itemid2=4295003894&pickid3=18216247&itemid3=4295003895&pickid4=38738282&itemid4=4295003888 User's steamid and correct user's authentication code must be supplied.