Pro Baseball Debut

SportscustomBaseball

Open events

Open markets

114

24h volume

contracts, open markets

Fees

quadratic

multiplier ×1

Open events

Event	Outcomes
Aidan Miller: Debut DateAidan MillerKXMLBDEBUT-AMILLER	independent
Leo De Vries: Debut DateLeo De VriesKXMLBDEBUT-LDEVRIES	independent
Thomas White: Debut DateThomas WhiteKXMLBDEBUT-TWHITE	independent
Franklin Arias: Debut DateFranklin AriasKXMLBDEBUT-FARIAS	independent
Jesús Made: Debut DateJesús MadeKXMLBDEBUT-JMADE	independent

Settlement sources

Prohibitions

· Current players, coaches, and staff of the league, association, or organization(s) governing the event. For college leagues/associations specifically, or where otherwise appropriate (as identified by the Exchange), this applies to current players/coaches/staff of the specific sport in <event> rather than the league/association as a whole (e.g., if the Division I Gonzaga Men’s Basketball Team is playing in <event>, this prohibition will restrict trades by current players/coaches/staff on NCAA Basketball, rather than all current players/coaches/staff in any NCAA sport).
· Paid employees of the league and league participants
· Owners of teams and the league
· and household members and immediate family of all above
· Persons who are employed by any of the Source Agencies are not permitted to trade on the Contract.
· Persons who hold any material, non-public information on the Underlying are not permitted to trade on the Contract.

scopePlayer Debut

Sorted by 24h volume; first page only.

Market	Yes bid	Yes ask	Last	Δ	Spread	Vol 24h	OI	Vol total	Closes	Status
Will Roch Cholowsky play in a game for any team in the MLB before Nov 1, 2026?Before Nov 1, 2026KXMLBDEBUT-RCHOLOWSKY-26NOV01 · KXMLBDEBUT-RCHOLOWSKY	0¢	18¢	2¢	–	18¢	31	6,364	7,820	in 1mo	active
Will Franklin Arias play in a game for any team in the MLB before Oct 1, 2026?