Juan Then
Pitcher · Career Stats, Bio & Records (2023)
Juan Then was a pitcher who played in Major League Baseball in 2023 for the Seattle Mariners. Across 9 career appearances, he went 0-0 with a 4.91 ERA and 5 strikeouts.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
- Position
- Pitcher
- Bats / Throws
- R / R
- Height / Weight
- 6'1" / 200 lb
- MLB Debut
- 2023-05-06
- Last Game
- 2023-05-29
Full name: Juan Manuel Then
Season-by-Season Pitching
Click a stat to plot it across every season.
| Year | Team | Lg | W | L | G | GS | CG | SHO | SV | IP | H | ER | BB | SO | ERA | Lg ERA | Pitcher PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SEA | AL | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 11.0 | 14 | 6 | 2 | 5 | 4.91 | 4.33 (-13%) | -578.9 |
| Career · 1 season | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 11.0 | 14 | 6 | 2 | 5 | 4.91 | — | -579 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Season-by-Season Batting
Click a stat to plot it across every season.
| Year | Team | Lg | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | Lg AVG | Lg OBP | Lg SLG | Lg OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SEA | AL | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 1 season | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | 0 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Game Log & Splits
View full game log (18 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 6 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 3 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 6 | 8.0 | 10 | 5 | 1 | 3 | 5.62 |
| Away | 3 | 3.0 | 4 | 1 | 1 | 2 | 3.00 |
Last 9 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023-05-29 | SEA | NYY | — | 2.1 | 4 | 1 | 1 | 0 | 1 | 1 |
| 2023-05-26 | SEA | PIT | — | 1.1 | 3 | 2 | 2 | 0 | 0 | 2 |
| 2023-05-22 | SEA | OAK | — | 1.1 | 1 | 2 | 2 | 1 | 0 | 0 |
| 2023-05-21 | SEA | ATL | — | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2023-05-16 | SEA | BOS | — | 1.1 | 3 | 1 | 1 | 0 | 1 | 0 |
| 2023-05-14 | SEA | DET | — | 1.1 | 1 | 0 | 0 | 1 | 0 | 0 |
| 2023-05-10 | SEA | TEX | — | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2023-05-09 | SEA | TEX | — | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 |
| 2023-05-06 | SEA | HOU | — | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 9 |
Juan Then: the record in brief
Juan Then played a first major league game on May 6, 2023 and a last one on May 29, 2023. Every season row on the page belongs to the Seattle Mariners, in 2023. Then played primarily as a pitcher and threw and hit right-handed. Born on February 7, 2000, in San Francisco de Macoris, San Pedro de Macorís, D.R., Then was listed at 6-foot-1 and 200 pounds. Juan Then was the playing name; the full given name is Juan Manuel.
The pitching table credits Then with a 0-0 record and a 4.91 ERA in 9 games. Also on Then's record: 5 strikeouts. Against a 4.33 league ERA for the same seasons, the 4.91 mark was 13.3% worse. All of that pitching came in 2023, with 9 games and 5 strikeouts.
Then's game-by-game log, linked below the splits, holds 18 games from Retrosheet.
Then appears at one position only: pitcher, in 9 games.
Frequently Asked Questions about Juan Then
- Was Juan Then a pitcher?
- Yes. Juan Then pitched in the major leagues, recording 0 wins and 5 strikeouts.
- What teams did Juan Then play for?
- Juan Then played for one team, the Seattle Mariners (2023).
- What were Juan Then's career stats?
- In 9 games, Juan Then went 0-0 with a 4.91 ERA, 5 strikeouts, and 11.0 innings pitched.
- What position did Juan Then play?
- Juan Then played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Juan Then and how much did he weigh?
- Juan Then was listed at 6 feet 1 inch and 200 pounds.
- What was Juan Then's career ERA?
- Juan Then finished with a 4.91 career ERA, going 0-0 with 5 strikeouts.
- How many strikeouts did Juan Then have?
- Juan Then recorded 5 career strikeouts.
- Is Juan Then in the Hall of Fame?
- No. Juan Then has not been inducted into the National Baseball Hall of Fame.