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 Jun 1, 2026
Ranked
100
56 with card market
Top sleeper
Sebastian Walcott
Score 1.5
Movement
↑95 · ↓0
1 new this week
Coverage
56%
of Top 100 has a tracked market
100 prospects
| Pos | Org | Age / Lvl | ||||||
|---|---|---|---|---|---|---|---|---|
| #9 | 1 | Sebastian Walcott 5 priced cards in DB | SS/3B | Texas Rangers | 20 / AA | 92 | 61 | 1.5 |
| #1 | — | Jesús Made 7 priced cards in DB | SS | Milwaukee Brewers | 19 / AA | 100 | 68 | 1.5 |
| #11 | 1 | Walker Jenkins 5 priced cards in DB | OF | Minnesota Twins | 21 / AAA | 90 | 62 | 1.5 |
| #2 | — | Leo De Vries 6 priced cards in DB | SS | Athletics | 19 / AA | 99 | 69 | 1.4 |
| #15 | 1 | Aidan Miller 5 priced cards in DB | SS | Philadelphia Phillies | 21 / AAA | 86 | 61 | 1.4 |
| #7 | 1 | Max Clark 6 priced cards in DB | OF | Detroit Tigers | 21 / AAA | 94 | 67 | 1.4 |
| #13 | 1 | Thomas White 6 priced cards in DB | LHP | Miami Marlins | 21 / AAA | 88 | 65 | 1.4 |
| #23 | 1 | Braden Montgomery 6 priced cards in DB | OF | Chicago White Sox | 23 / AAA | 78 | 59 | 1.3 |
| #10 | 1 | Franklin Arias 8 priced cards in DB | SS | Boston Red Sox | 20 / AA | 91 | 69 | 1.3 |
| #21 | 1 | Ryan Sloan 5 priced cards in DB | RHP | Seattle Mariners | 20 / AA | 80 | 61 | 1.3 |
| #24 | 1 | Rainiel Rodriguez 6 priced cards in DB | C | St. Louis Cardinals | 19 / AA | 77 | 61 | 1.3 |
| #14 | 1 | Caleb Bonemer 6 priced cards in DB | 3B/SS | Chicago White Sox | 20 / A+ | 87 | 71 | 1.2 |
| #25 | 1 | Alfredo Duno 7 priced cards in DB | C | Cincinnati Reds | 20 / A+ | 76 | 64 | 1.2 |
| #12 | 1 | Travis Bazzana 8 priced cards in DB | 2B | Cleveland Guardians | 23 / MLB | 89 | 75 | 1.2 |
| #20 | 1 | George Lombard Jr. 7 priced cards in DB | INF | New York Yankees | 20 / AAA | 81 | 70 | 1.2 |
| #3 | — | Seth Hernandez 29 priced cards in DB | RHP | Pittsburgh Pirates | 19 / A+ | 98 | 90 | 1.1 |
| #32 | 1 | Ryan Waldschmidt 7 priced cards in DB | OF | Arizona Diamondbacks | 23 / MLB | 69 | 64 | 1.1 |
| #30 | 1 | Josuar Gonzalez 5 priced cards in DB | SS | San Francisco Giants | 18 / ROK | 71 | 67 | 1.1 |
| #6 | 1 | Kade Anderson 29 priced cards in DB | LHP | Seattle Mariners | 21 / AA | 95 | 91 | 1.0 |
| #38 | 1 | Kaelen Culpepper 5 priced cards in DB | SS | Minnesota Twins | 23 / AAA | 63 | 61 | 1.0 |
| #4 | — | Eli Willits 25 priced cards in DB | SS | Washington Nationals | 18 / A | 97 | 94 | 1.0 |
| #42 | 1 | Theo Gillen 6 priced cards in DB | OF | Tampa Bay Rays | 20 / A+ | 59 | 60 | 1.0 |
| #44 | 1 | Eduardo Tait 5 priced cards in DB | C | Minnesota Twins | 19 / A+ | 57 | 58 | 1.0 |
| #37 | 1 | Eduardo Quintero 6 priced cards in DB | OF | Los Angeles Dodgers | 20 / A+ | 64 | 66 | 1.0 |
| #39 | 1 | Travis Sykora 5 priced cards in DB | RHP | Washington Nationals | 22 / AA | 62 | 68 | 0.9 |
| #22 | 1 | Liam Doyle 26 priced cards in DB | LHP | St. Louis Cardinals | 21 / AA | 79 | 88 | 0.9 |
| #41 | 1 | Mike Sirota 6 priced cards in DB | OF | Los Angeles Dodgers | 22 / AA | 60 | 69 | 0.9 |
| #49 | 1 | Hagen Smith 6 priced cards in DB | LHP | Chicago White Sox | 22 / AAA | 52 | 60 | 0.9 |
| #48 | 1 | Cam Caminiti 6 priced cards in DB | LHP | Atlanta Braves | 19 / A+ | 53 | 63 | 0.8 |
| #28 | 1 | Jamie Arnold 20 priced cards in DB | LHP | Athletics | 22 / AA | 73 | 90 | 0.8 |
| #31 | 1 | JoJo Parker 24 priced cards in DB | SS | Toronto Blue Jays | 19 / A | 70 | 88 | 0.8 |
| #54 | 1 | Blake Mitchell 6 priced cards in DB | C | Kansas City Royals | 21 / A+ | 47 | 63 | 0.7 |
| #55 | 1 | Arjun Nimmala 7 priced cards in DB | SS | Toronto Blue Jays | 20 / AA | 46 | 65 | 0.7 |
| #60 | 1 | JR Ritchie 6 priced cards in DB | RHP | Atlanta Braves | 22 / AAA | 41 | 65 | 0.6 |
| #63 | 1 | Jhonny Level 6 priced cards in DB | SS | San Francisco Giants | 19 / A | 38 | 61 | 0.6 |
| #50 | 1 | Tyler Bremner 21 priced cards in DB | RHP | Los Angeles Angels | 22 / A+ | 51 | 84 | 0.6 |
| #65 | 1 | Cooper Pratt 6 priced cards in DB | SS | Milwaukee Brewers | 21 / AAA | 36 | 61 | 0.6 |
| #52 | 1 | Billy Carlson 15 priced cards in DB | SS | Chicago White Sox | 19 / A | 49 | 86 | 0.6 |
| #68 | 1 | Nate George 6 priced cards in DB | OF | Baltimore Orioles | 19 / A+ | 33 | 66 | 0.5 |
| #73 | 1 | Jonny Farmelo 5 priced cards in DB | OF | Seattle Mariners | 21 / A+ | 28 | 56 | 0.5 |
| #64 | 1 | Steele Hall 21 priced cards in DB | SS | Cincinnati Reds | 18 / ROK | 37 | 88 | 0.4 |
| #71 | 1 | Anthony Eyanson 11 priced cards in DB | RHP | Boston Red Sox | 21 / AA | 30 | 74 | 0.4 |
| #75 | 1 | Carlos Lagrange 6 priced cards in DB | RHP | New York Yankees | 23 / AAA | 26 | 66 | 0.4 |
| #70 | 1 | Gage Wood 23 priced cards in DB | RHP | Philadelphia Phillies | 22 / AA | 31 | 79 | 0.4 |
| #69 | 1 | Dax Kilby 20 priced cards in DB | SS | New York Yankees | 19 / ROK | 32 | 86 | 0.4 |
| #74 | 1 | Charlie Condon 8 priced cards in DB | 1B/OF | Colorado Rockies | 23 / AAA | 27 | 75 | 0.4 |
| #82 | 1 | Jefferson Rojas 5 priced cards in DB | SS | Chicago Cubs | 21 / AA | 19 | 55 | 0.3 |
| #79 | 1 | River Ryan 52 priced cards in DB | RHP | Los Angeles Dodgers | 27 / AAA | 22 | 74 | 0.3 |
| #81 | 1 | Kayson Cunningham 19 priced cards in DB | SS | Arizona Diamondbacks | 19 / A | 20 | 81 | 0.2 |
| #87 | 1 | Jaxon Wiggins 6 priced cards in DB | RHP | Chicago Cubs | 24 / AAA | 14 | 61 | 0.2 |
| #85 | 1 | Kyson Witherspoon 19 priced cards in DB | RHP | Boston Red Sox | 21 / A+ | 16 | 82 | 0.2 |
| #91 | 1 | Ike Irish 16 priced cards in DB | OF/1B | Baltimore Orioles | 22 / A+ | 10 | 88 | 0.1 |
| #94 | 1 | Josh Hammond 16 priced cards in DB | SS/3B | Kansas City Royals | 19 / A | 7 | 80 | 0.1 |
| #96 | 1 | Charles Davalan 26 priced cards in DB | OF | Los Angeles Dodgers | 22 / A+ | 5 | 82 | 0.1 |
| #97 | 1 | Xavier Neyens 19 priced cards in DB | 3B/SS | Houston Astros | 19 / A | 4 | 83 | 0.0 |
| #100 | New | Felnin Celesten 4 priced cards in DB | SS | Seattle Mariners | 20 / A+ | 1 | 56 | 0.0 |
| #5 | 1 | Colt Emerson | SS | Seattle Mariners | 20 / MLB | 96 | — | — |
| #8 | 1 | Josue De Paula | OF | Los Angeles Dodgers | 21 / AA | 93 | — | — |
| #16 | 1 | Ethan Holliday | SS | Colorado Rockies | 19 / A | 85 | — | — |
| #17 | 1 | Bryce Eldridge | 1B | San Francisco Giants | 21 / MLB | 84 | — | — |
| #18 | 1 | Luis Peña | INF | Milwaukee Brewers | 19 / A+ | 83 | — | — |
| #19 | 1 | Zyhir Hope | OF | Los Angeles Dodgers | 21 / AA | 82 | — | — |
| #26 | 1 | Noah Schultz | LHP | Chicago White Sox | 22 / MLB | 75 | — | — |
| #27 | 1 | Robby Snelling | LHP | Miami Marlins | 22 / MLB | 74 | — | — |
| #29 | 1 | Lazaro Montes | OF | Seattle Mariners | 21 / AA | 72 | — | — |
| #33 | 1 | A.J. Ewing | OF/2B | New York Mets | 21 / MLB | 68 | — | — |
| #34 | 1 | Aiva Arquette | SS | Miami Marlins | 22 / AA | 67 | — | — |
| #35 | 1 | Jonah Tong | RHP | New York Mets | 22 / MLB | 66 | — | — |
| #36 | 1 | Edward Florentino | OF/1B | Pittsburgh Pirates | 19 / A+ | 65 | — | — |
| #40 | 1 | Gage Jump | LHP | Athletics | 23 / MLB | 61 | — | — |
| #43 | 1 | Joe Mack | C | Miami Marlins | 23 / MLB | 58 | — | — |
| #45 | 1 | Bryce Rainer | SS | Detroit Tigers | 20 / A+ | 56 | — | — |
| #46 | 1 | Angel Genao | SS | Cleveland Guardians | 22 / AAA | 55 | — | — |
| #47 | 1 | Michael Arroyo | 2B/OF | Seattle Mariners | 21 / AA | 54 | — | — |
| #51 | 1 | Ethan Salas | C | San Diego Padres | 20 / AA | 50 | — | — |
| #53 | 1 | Emmanuel Rodriguez | OF | Minnesota Twins | 23 / AAA | 48 | — | — |
| #56 | 1 | Emil Morales | SS | Los Angeles Dodgers | 19 / A+ | 45 | — | — |
| #57 | 1 | Luis Hernández | SS | San Francisco Giants | 17 / ROK | 44 | — | — |
| #58 | 1 | Ralphy Velazquez | 1B/OF | Cleveland Guardians | 21 / AAA | 43 | — | — |
| #59 | 1 | Jett Williams | 3B/SS/OF | Milwaukee Brewers | 22 / AAA | 42 | — | — |
| #61 | 1 | Jarlin Susana | RHP | Washington Nationals | 22 / AA | 40 | — | — |
| #62 | 1 | Elmer Rodríguez | RHP | New York Yankees | 22 / AAA | 39 | — | — |
| #66 | 1 | Josue Briceño | C/1B | Detroit Tigers | 21 / AA | 35 | — | — |
| #67 | 1 | Joshua Báez | OF | St. Louis Cardinals | 22 / AAA | 34 | — | — |
| #72 | 1 | Cooper Ingle | C | Cleveland Guardians | 24 / AAA | 29 | — | — |
| #76 | 1 | Caden Scarborough | RHP | Texas Rangers | 21 / A+ | 25 | — | — |
| #77 | 1 | Kendry Chourio | RHP | Kansas City Royals | 18 / A | 24 | — | — |
| #78 | 1 | Kevin Alvarez | OF | Houston Astros | 18 / A | 23 | — | — |
| #80 | 1 | Roldy Brito | OF/2B | Colorado Rockies | 19 / A | 21 | — | — |
| #83 | 1 | Brody Hopkins | RHP | Tampa Bay Rays | 24 / AAA | 18 | — | — |
| #84 | 1 | Pedro Ramírez | 3B/2B | Chicago Cubs | 22 / MLB | 17 | — | — |
| #86 | 1 | Jurrangelo Cijntje | RHP | St. Louis Cardinals | 23 / AA | 15 | — | — |
| #88 | 1 | Nathan Flewelling | C | Tampa Bay Rays | 19 / A+ | 13 | — | — |
| #89 | 1 | Ronny Cruz | INF | Washington Nationals | 19 / A+ | 12 | — | — |
| #90 | 1 | Kruz Schoolcraft | LHP | San Diego Padres | 19 / A | 11 | — | — |
| #92 | 1 | Wei-En Lin | LHP | Athletics | 20 / AA | 9 | — | — |
| #93 | 1 | Luis Lara | OF | Milwaukee Brewers | 21 / AAA | 8 | — | — |
| #95 | 1 | Justin Gonzales | OF | Boston Red Sox | 19 / A+ | 6 | — | — |
| #98 | 1 | Edwin Arroyo | SS | Cincinnati Reds | 22 / AAA | 3 | — | — |
| #99 | 1 | Devin Fitz-Gerald | INF | Washington Nationals | 20 / A+ | 2 | — | — |