37% — Will Robert Lewandowski leave Barcelona before Sep 15, 2026 Kalshi 37% · 15 contracts · $59 volume · medium confidence Updated 2026-07-13 05:27:47 UTC Why this matters: This probability represents the market's assessment that Robert Lewandowski will depart Barcelona before September 15, 2026—a date roughly four months away. The 44% probability reflects uncertainty about the striker's future at the club, balanced between his age (37), ongoing performance as a key player, and the typical summer transfer window activity in European football. The main factors pushing the probability up include Barcelona's financial constraints, which historically lead to player sales, and the possibility of lucrative offers from other clubs. Factors pushing it down include Lewandowski's recent contract extension and his continued importance to Barcelona's attack. The resolution will likely become clear during the summer 2026 transfer window (June-August), when European clubs finalize roster changes ahead of the new season. Key factors: - Lewandowski signed a contract extension through 2026, suggesting Barcelona's intention to retain him, but the club's historical pattern of selling valuable players due to financial pressure could override this - His age (37 by September 2026) makes him a potential candidate for transfer or departure, though his goal-scoring record remains elite by contemporary standards - Barcelona's financial position and UEFA Fair Play regulations may force the club to sell players or allow departures to reduce wages, creating conditions for his exit - Interest from Saudi Arabia, MLS, or other wealthy leagues typically intensifies during summer transfer windows and could present Lewandowski with attractive alternatives - The resolution date (September 15) falls shortly after the traditional European transfer window closes (August 31), making late-summer activity the primary catalyst Contracts: - Will Dusan Vlahovic leave Juventus before Sep 15, 2026?: Dusan Vlahovic — 83¢ Kalshi $59 (weight 100%) - Will Julian Brandt leave Dortmund before Sep 15, 2026?: Julian Brandt — 95¢ Kalshi $0 (weight 0%) - Will Ruben Neves leave Al-Hilal before Sep 15, 2026?: Ruben Neves — 14¢ Kalshi $0 (weight 0%) - Will Mike Maignan leave AC Milan before Sep 15, 2026?: Mike Maignan — 12¢ Kalshi $0 (weight 0%) - Will Dayot Upamecano leave Bayern before Sep 15, 2026?: Dayot Upamecano — 10¢ Kalshi $0 (weight 0%) - Will Kobbie Mainoo leave Manchester United before Sep 15, 2026?: Kobbie Mainoo — 4¢ Kalshi $0 (weight 0%) - Will Rodrygo leave Real Madrid before Sep 15, 2026?: Rodrygo — 16¢ Kalshi $0 (weight 0%) - Will Richarlison leave Tottenham before Sep 15, 2026?: Richarlison — 52¢ Kalshi $0 (weight 0%) - ... and 7 more --- ## Methodology SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours. ## SF Signal - SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration. - No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only. --- *Last verified: 2026-07-13T05:20:48.864Z* By SimpleFunctions — https://simplefunctions.dev/ Cite as: "37% per prediction markets (SimpleFunctions, July 2026)" Canonical: https://simplefunctions.dev/answer/soccertransfer Full data: https://simplefunctions.dev/api/public/query?q=Will%20Robert%20Lewandowski%20leave%20Barcelona%20before%20Sep%2015%2C%202026 Provider: SimpleFunctions — https://simplefunctions.dev