Insights · MLB

Sleeper Index

Top 100 prospects ranked by Sleeper Score — quality (their place on MLB Pipeline's published Top 100) ÷ card market (how much the hobby has already priced them in). Higher = more undervalued.

MLB Pipeline · captured Oct 26, 2026

Ranked

100

48 with card market

Top sleeper

Sebastian Walcott

Score 1.6

Movement

↑0 · ↓0

Coverage

48%

of Top 100 has a tracked market

SearchPositionHas card market only

100 prospects

			Pos	Org	Age / Lvl
#8	—	Sebastian Walcott 6 priced cards in DB	SS/3B	Texas Rangers	20 / AAA	93	57	1.6
#11	—	Ryan Sloan 5 priced cards in DB	RHP	Seattle Mariners	20 / AA	90	56	1.6
#10	—	Rainiel Rodriguez 6 priced cards in DB	C/1B	St. Louis Cardinals	19 / AA	91	57	1.6
#1	—	Jesús Made 7 priced cards in DB	SS	Milwaukee Brewers	19 / AA	100	64	1.6
#3	—	Leo De Vries 6 priced cards in DB	SS/3B	Athletics	20 / AA	98	64	1.5
#2	—	Franklin Arias 8 priced cards in DB	SS	Boston Red Sox	20 / AAA	99	65	1.5
#7	—	Josuar Gonzalez 6 priced cards in DB	SS/2B	San Francisco Giants	19 / A	94	62	1.5
#16	—	Theo Gillen 6 priced cards in DB	OF	Tampa Bay Rays	21 / AA	85	57	1.5
#13	—	Walker Jenkins 6 priced cards in DB	OF	Minnesota Twins	21 / MLB	88	61	1.4
#15	—	Eduardo Quintero 7 priced cards in DB	OF	Los Angeles Dodgers	21 / AA	86	61	1.4
#20	—	Alfredo Duno 7 priced cards in DB	C	Cincinnati Reds	20 / AA	81	59	1.4
#17	—	Mike Sirota 7 priced cards in DB	OF	Los Angeles Dodgers	23 / AAA	84	63	1.3
#31	—	Kaelen Culpepper 6 priced cards in DB	SS	Minnesota Twins	23 / MLB	70	61	1.1
#5	—	Kade Anderson 29 priced cards in DB	LHP	Seattle Mariners	22 / MLB	96	85	1.1
#27	—	Caleb Bonemer 6 priced cards in DB	3B/SS	Chicago White Sox	21 / AA	74	66	1.1
#34	—	Arjun Nimmala 7 priced cards in DB	SS	Los Angeles Angels	21 / AA	67	60	1.1
#9	—	Seth Hernandez 29 priced cards in DB	RHP	Pittsburgh Pirates	20 / A+	92	83	1.1
#39	—	Cam Caminiti 6 priced cards in DB	LHP	Atlanta Braves	20 / AA	62	56	1.1
#6	—	Eli Willits 25 priced cards in DB	SS	Washington Nationals	18 / AA	95	87	1.1
#43	—	Jhonny Level 6 priced cards in DB	SS/2B	San Francisco Giants	19 / A+	58	56	1.0
#30	—	Gage Wood 23 priced cards in DB	RHP	Philadelphia Phillies	22 / AA	71	73	1.0
#24	—	JoJo Parker 24 priced cards in DB	SS	Toronto Blue Jays	20 / A+	77	82	0.9
#47	—	Thomas White 6 priced cards in DB	LHP	Miami Marlins	22 / AAA	54	60	0.9
#35	—	Josiah Hartshorn 20 priced cards in DB	1B/OF	Chicago Cubs	19 / AA	66	74	0.9
#48	—	Travis Sykora 6 priced cards in DB	RHP	Washington Nationals	22 / AA	53	62	0.9
#45	—	Anthony Eyanson 13 priced cards in DB	RHP	Baltimore Orioles	22 / AA	56	70	0.8
#46	—	Caden Bodine 22 priced cards in DB	C	Tampa Bay Rays	22 / AAA	55	69	0.8
#60	—	Felnin Celesten 6 priced cards in DB	SS	Seattle Mariners	21 / AA	41	53	0.8
#42	—	Tyler Bremner 21 priced cards in DB	RHP	Los Angeles Angels	22 / AA	59	78	0.8
#40	—	Liam Doyle 26 priced cards in DB	LHP	St. Louis Cardinals	22 / AA	61	82	0.7
#59	—	Aidan Miller 6 priced cards in DB	SS	Philadelphia Phillies	22 / AA	42	58	0.7
#56	—	Charlie Condon 8 priced cards in DB	1B/OF	Colorado Rockies	23 / AAA	45	69	0.7
#68	—	Jefferson Rojas 5 priced cards in DB	3B/SS	New York Mets	21 / AAA	33	51	0.6
#58	—	Tate Southisene 17 priced cards in DB	SS/2B	Atlanta Braves	20 / AA	43	72	0.6
#55	—	Jamie Arnold 20 priced cards in DB	LHP	Athletics	22 / AAA	46	83	0.6
#64	—	River Ryan 54 priced cards in DB	RHP	Detroit Tigers	28 / MLB	37	73	0.5
#69	—	Joseph Dzierwa 19 priced cards in DB	LHP	Baltimore Orioles	22 / AA	32	71	0.5
#75	—	Cooper Flemming 17 priced cards in DB	INF	Tampa Bay Rays	20 / A	26	69	0.4
#83	—	Jonny Farmelo 7 priced cards in DB	OF	Seattle Mariners	22 / AA	18	52	0.3
#78	—	Dax Kilby 20 priced cards in DB	SS	New York Yankees	19 / A	23	79	0.3
#79	—	Charles Davalan 26 priced cards in DB	OF	Los Angeles Dodgers	22 / AA	22	76	0.3
#82	—	Josh Hammond 16 priced cards in DB	SS/3B	Kansas City Royals	20 / A	19	75	0.3
#81	—	Billy Carlson 16 priced cards in DB	SS	Chicago White Sox	20 / A	20	80	0.3
#89	—	Murf Gray 15 priced cards in DB	3B	Pittsburgh Pirates	22 / AA	12	78	0.2
#93	—	Brady Ebel 19 priced cards in DB	SS	Milwaukee Brewers	19 / A+	8	72	0.1
#95	—	Ike Irish 17 priced cards in DB	OF/1B	Baltimore Orioles	22 / A+	6	82	0.1
#97	—	Taitn Gray 22 priced cards in DB	1B	Tampa Bay Rays	19 / A	4	83	0.0
#100	—	Xavier Neyens 19 priced cards in DB	3B/SS	Houston Astros	19 / A+	1	77	0.0
#4	—	Josue De Paula	OF	Los Angeles Dodgers	21 / MLB	97	—	—
#12	—	Grady Emerson	SS	Tampa Bay Rays	18 / A	89	—	—
#14	—	Roch Cholowsky	SS	Chicago White Sox	21 / A+	87	—	—
#18	—	Vahn Lackey	C	Minnesota Twins	21 / A+	83	—	—
#19	—	Luis Peña	SS	Milwaukee Brewers	19 / AA	82	—	—
#21	—	Ethan Salas	C	San Diego Padres	20 / MLB	80	—	—
#22	—	Emil Morales	SS/3B	Los Angeles Dodgers	20 / A+	79	—	—
#23	—	Ethan Holliday	SS	Colorado Rockies	19 / A	78	—	—
#25	—	Luis Hernández	SS/3B	San Francisco Giants	17 / A	76	—	—
#26	—	Zyhir Hope	OF	Detroit Tigers	21 / AA	75	—	—
#28	—	Jackson Flora	RHP	San Francisco Giants	21 / AA	73	—	—
#29	—	Ralphy Velazquez	1B/OF	Cleveland Guardians	21 / AAA	72	—	—
#32	—	Edward Florentino	OF	Pittsburgh Pirates	19 / A+	69	—	—
#33	—	Christian Zazueta	RHP	Los Angeles Dodgers	22 / AA	68	—	—
#36	—	Eric Booth Jr.	OF	Baltimore Orioles	18 / A	65	—	—
#37	—	Drew Burress	OF	Athletics	21 / A	64	—	—
#38	—	Eric Hartman	OF	Atlanta Braves	20 / AA	63	—	—
#41	—	Michael Arroyo	OF/2B	Seattle Mariners	21 / MLB	60	—	—
#44	—	Bryce Rainer	SS	Detroit Tigers	21 / A+	57	—	—
#49	—	Robby Snelling	LHP	Miami Marlins	22 / MLB	52	—	—
#50	—	Kendry Chourio	RHP	Kansas City Royals	19 / A+	51	—	—
#51	—	Seaver King	SS/2B	Washington Nationals	23 / AAA	50	—	—
#52	—	Roldy Brito	OF/2B	Colorado Rockies	19 / A+	49	—	—
#53	—	Lazaro Montes	OF	Seattle Mariners	22 / MLB	48	—	—
#54	—	Marek Houston	SS	Minnesota Twins	22 / AA	47	—	—
#57	—	Joshua Báez	OF	St. Louis Cardinals	23 / MLB	44	—	—
#61	—	Aiva Arquette	SS	Miami Marlins	23 / AA	40	—	—
#62	—	Tyler Bell	SS	Colorado Rockies	21 / ROK	39	—	—
#63	—	Nathan Flewelling	C	Tampa Bay Rays	19 / A+	38	—	—
#65	—	Jacob Lombard	SS	Miami Marlins	19 / A	36	—	—
#66	—	Jarlin Susana	RHP	Washington Nationals	22 / AAA	35	—	—
#67	—	Braylon Doughty	RHP	Cleveland Guardians	20 / AA	34	—	—
#70	—	Caden Scarborough	RHP	Texas Rangers	21 / A+	31	—	—
#71	—	Justin Gonzales	OF	Boston Red Sox	19 / AA	30	—	—
#72	—	Kevin Alvarez	OF	Houston Astros	18 / A	29	—	—
#73	—	Francisco Renteria	OF	Philadelphia Phillies	17 / ROK	28	—	—
#74	—	Juneiker Caceres	OF	Cleveland Guardians	19 / A+	27	—	—
#76	—	Angeibel Gomez	OF	Kansas City Royals	17 / ROK	25	—	—
#77	—	Cam Cannarella	OF	Miami Marlins	23 / AAA	24	—	—
#80	—	Leo Bernal	C/1B	St. Louis Cardinals	22 / MLB	21	—	—
#84	—	Demetrio Crisantes	2B	Arizona Diamondbacks	22 / AAA	17	—	—
#85	—	Josh Adamczewski	OF	Milwaukee Brewers	21 / AA	16	—	—
#86	—	Josue Briceño	C/1B	Detroit Tigers	22 / AAA	15	—	—
#87	—	Derek Curiel	OF	Pittsburgh Pirates	21 / ROK	14	—	—
#88	—	Owen Ayers	C/1B	Chicago Cubs	25 / AAA	13	—	—
#90	—	Nolan Perry	RHP	Toronto Blue Jays	23 / AA	11	—	—
#91	—	Gio Rojas	LHP	Texas Rangers	19 / ROK	10	—	—
#92	—	Caden Hunter	LHP	Baltimore Orioles	23 / AA	9	—	—
#94	—	Ramon Marquez	RHP	San Francisco Giants	21 / A+	7	—	—
#96	—	Bryan Rincon	SS	Philadelphia Phillies	22 / AA	5	—	—
#98	—	Hayden Alvarez	OF	Los Angeles Angels	19 / A+	3	—	—
#99	—	Enddy Azocar	OF	Baltimore Orioles	19 / A+	2	—	—