Casey Mize
"The No. 1 pick who spent his first professional summer pitching to no one at all."
Casey Mize made his major-league debut in a stadium with no spectators — the entire 2020 season was played in empty ballparks because of the pandemic, meaning the highest-profile draft pick in Tigers history threw his first big-league pitch in front of cardboard cutouts, not people.
Mize is one of the clearest data points in Detroit's long rebuild: the No. 1 overall pick whose path from can't-miss prospect to Tommy John recovery to rotation regular mirrors the Tigers' own arc from rebuilding to contending.
The 'former No. 1 pick' label tends to freeze a player's story at draft night, as if everything after is either fulfillment or failure — it flattens the multi-year, unglamorous process of surgery and rehab that most top picks actually go through before anyone calls them established.
In the U.S. amateur draft, there is no lottery: the worst team in baseball simply gets the first pick, live, on national television, with the player's name read aloud by the league commissioner in front of cameras — a single, unrepeatable moment of exposure very different from Japan's NPB draft, which uses a lottery specifically to prevent any one team, or any one prospect, from being handed that kind of certainty.
When broadcasters say a player was the '#1 overall pick,' they're describing not just talent evaluation but a negotiated signing bonus tied to a league-wide bonus pool — the slot itself comes with a specific dollar figure attached before the player throws a single professional pitch, which is why draft position and contract value get discussed in the same breath.
Casey Mize, a right-handed pitcher from Springville, was the first overall selection in the 2018 MLB Draft by the Detroit Tigers. He debuted on August 19, 2020, during a pandemic-altered season played without fans, and has since navigated Tommy John surgery and a long rehabilitation — a career defined less by a single moment than by the slow, public work of coming back.
| Year | Team | G | W–L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|---|---|
| 2026 | — | 23 | 5–9 | 3.70 | 119.1 | 107 | 1.11 |
| 2026 | SDP | 7 | 1–3 | 6.34 | 32.2 | 22 | 1.41 |
| 2026 | DET | 16 | 4–6 | 2.70 | 86.2 | 85 | 0.99 |
| Career | — | 112 | 28–34 | 4.09 | 559.1 | 472 | 1.25 |
Source: MLB Stats API · regular season
An Empty Ballpark
On August 19, 2020, Casey Mize threw his first pitch in a major-league game. There was no crowd noise, no ushers, no line at the concession stand — just the sound of the ball hitting the mitt, echoing through a stadium emptied by pandemic protocol. That detail, easy to forget now, says something about the strange circumstances under which some of the decade's most anticipated debuts actually happened: the 2020 season was played entirely without fans in the stands, a fact so normalized at the time that it's rarely mentioned in retrospectives, but one that shaped the atmosphere of Mize's entrance into the major leagues in a way no scouting report could have predicted.
First Overall
Mize was selected first overall in the 2018 MLB Draft by the Detroit Tigers, a widely documented fact that placed him, at 21, at the center of a franchise rebuild before he had thrown a single professional pitch. Being drafted first overall in American baseball is not a matter of chance — there is no lottery, no weighted odds. The worst team in baseball simply picks first, and that team's decision becomes an immediate, public bet on one person's right arm. For a franchise that lost 114 games the year it selected him, Mize's name carried the weight of a turnaround plan before he ever set foot on a big-league mound.
Unlike systems that use a lottery to distribute the top selection among multiple losing teams, Major League Baseball's draft order is set purely by the previous season's standings — the team with the worst record picks first, full stop. This is why a single draft-night selection, like Mize's in 2018, gets discussed for years afterward as a defining organizational decision rather than a matter of luck.
The Rebuild Within the Rebuild
Mize's professional path took a detour that is itself part of the story: he underwent Tommy John surgery, the reconstructive elbow procedure that has become almost a rite of passage for modern pitchers, sidelining him for a significant stretch. The surgery and the year-plus rehabilitation that follows it are, by now, so common in professional baseball that they've developed their own cultural shorthand — a recognized, almost expected detour rather than a career-ending event. What's less visible to casual observers is how much of a pitcher's early career can be consumed by this cycle: throw, get hurt, rebuild the arm, return, and try to pick up exactly where a very different, younger version of yourself left off.
Right-Handed, Unhurried
At 6-foot-3 and 212 pounds, Mize throws and bats right-handed — the basic physical facts of a pitcher built to work deep into games rather than overpower hitters with pure velocity alone. Wearing No. 12 for Detroit, he occupies a rotation spot that, for a former No. 1 pick, carries a particular kind of scrutiny: every start is read against the promise of draft night, whether or not that comparison is fair. The measure of his career, at this point, is less about recapturing a singular moment of hype and more about the accumulation of ordinary, healthy starts — the unglamorous proof that the arm held up.
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Casey Mize Gear — Official MLB ShopThis profile was written by AI (Claude Sonnet) using publicly available sources. Interpretations and cultural notes are AI-generated and may not reflect the views of the player, their team, or MLB. This page contains affiliate links.