Polymarket runs a real-money market on this question. Norynta mirrors it with play credits: it opened at the Polymarket price and settles exactly as that market does. Players and a labelled market tracker move the price from there. Think the crowd is wrong? Trade against it.
This market refers to the tennis match between Julia Grabher and Deborah Chiesa in the Mallorca, originally scheduled for October 12, 2026 at 5:00AM ET. This market will resolve to 'Julia Grabher' if Julia Grabher advances against Deborah Chiesa. This market will resolve to 'Deborah Chiesa' if Deborah Chiesa advances against Julia Grabher. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 26, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used. Resolution: this play-money market resolves to the same result as the official Polymarket market settlement, linked as this market's resolution source. Observation time: the source market's final settlement after trading closes at 2026-10-19T09:00:00Z (UTC). If the source market is voided, cancelled, or its result is unavailable or ambiguous, this market is voided and positions are refunded.
Forecasts and play credits have no cash value. At resolution each winning share pays 1 play credit and your calibration record updates.