92% — Will Roch Cholowsky play in a game for any team in the MLB before Aug 1, 2029 Leader: Before Nov 1, 2031 at 92% · Kalshi 92% · 8 contracts · $637 volume · medium confidence Updated 2026-07-13 05:11:43 UTC Tracks the leading outcome in a winner-take-all prediction market set with 8 outcomes. Why this matters: This probability estimates the likelihood that Roch Cholowsky will play in an MLB game before August 1, 2029—roughly three years from now. The 92% price reflects confidence he'll reach the majors within this timeframe, though the declining odds across earlier deadlines (68% for May 2029, 69% for November 2029) suggest uncertainty about the specific timing of his debut. Key drivers include his current minor league trajectory, development pace, and team roster decisions. The most immediate catalyst would be any official call-up or sustained demotion that clarifies his pathway to MLB play. The gap between the August 2029 contract (92%) and May 2029 (68%) indicates traders expect his debut more likely in the second half of 2029 than the first half. Key factors: - Current status and organizational depth: Whether Cholowsky is trending toward or away from MLB readiness in his team's developmental pipeline - Injury history and performance trends: Any recent injuries, rehab assignments, or sustained performance slumps that would delay or accelerate a call-up - Roster turnover and competitive window: Whether his team will have roster space and motivation to promote him by the deadline - Minor league statistics and recent promotions: Concrete performance data showing progression through successive minor league levels - Official team statements or roster moves: Any public indication of call-up timing or organizational plans for his development Contracts: - Will Roch Cholowsky play in a game for any team in the MLB before Nov 1, 2031?: Before Nov 1, 2031 — 92¢ Kalshi $0 (weight 0%) - Will Roch Cholowsky play in a game for any team in the MLB before Nov 1, 2030?: Before Nov 1, 2030 — 90¢ Kalshi $123 (weight 19%) - Will Roch Cholowsky play in a game for any team in the MLB before Aug 1, 2030?: Before Aug 1, 2030 — 86¢ Kalshi $122 (weight 19%) - Will Roch Cholowsky play in a game for any team in the MLB before May 1, 2030?: Before May 1, 2030 — 82¢ Kalshi $174 (weight 27%) - Will Roch Cholowsky play in a game for any team in the MLB before Nov 1, 2029?: Before Nov 1, 2029 — 74¢ Kalshi $80 (weight 13%) - Will Roch Cholowsky play in a game for any team in the MLB before Aug 1, 2029?: Before Aug 1, 2029 — 71¢ Kalshi $135 (weight 21%) - Will Roch Cholowsky play in a game for any team in the MLB before May 1, 2029?: Before May 1, 2029 — 68¢ Kalshi $0 (weight 0%) - Will Roch Cholowsky play in a game for any team in the MLB before Nov 1, 2028?: Before Nov 1, 2028 — 65¢ Kalshi $3 (weight 0%) --- ## 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: 2026-07-13T04:20:50.949Z* By SimpleFunctions — https://simplefunctions.dev/ Cite as: "92% per prediction markets (SimpleFunctions, July 2026)" Canonical: https://simplefunctions.dev/answer/mlbdebut-rcholowsky Full data: https://simplefunctions.dev/api/public/query?q=Will%20Roch%20Cholowsky%20play%20in%20a%20game%20for%20any%20team%20in%20the%20MLB%20before%20Aug%201%2C%202029 Provider: SimpleFunctions — https://simplefunctions.dev