Daulton Jefferies
Pitcher · Career Stats, Bio & Records (2020-2024)
Daulton Jefferies was a pitcher who played in Major League Baseball from 2020 to 2024 for the Athletics, the San Francisco Giants, and the Pittsburgh Pirates, a span of 5 seasons. Across 20 career appearances, he went 2-10 with a 6.59 ERA and 49 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 57.2.
- 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
- L / R
- Height / Weight
- 6'0" / 182 lb
- MLB Debut
- 2020-09-12
Full name: Daulton Compton Jefferies
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | OAK | AL | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 2.0 | 5 | 5 | 2 | 1 | 22.50 | — | 0.0 |
| 2021 | OAK | AL | 1 | 0 | 5 | 1 | 0 | 0 | 0 | 15.0 | 11 | 6 | 4 | 8 | 3.60 | 4.27 (+16%) | 111.2 |
| 2022 | OAK | AL | 1 | 7 | 8 | 8 | 0 | 0 | 0 | 39.1 | 46 | 25 | 8 | 28 | 5.72 | 3.97 (-44%) | 193.2 |
| 2024 | SFN | NL | 0 | 2 | 2 | 1 | 0 | 0 | 0 | 4.2 | 14 | 9 | 2 | 4 | 17.36 | — | 0.0 |
| 2024 | PIT | NL | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 10.0 | 10 | 7 | 2 | 8 | 6.30 | 4.08 (-54%) | -247.1 |
| Career · 5 seasons | 2 | 10 | 20 | 11 | 0 | 0 | 0 | 71.0 | 86 | 52 | 18 | 49 | 6.59 | — | 57 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | OAK | AL | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2021 | OAK | AL | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2022 | OAK | AL | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2024 | SFN | NL | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2024 | PIT | NL | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 5 seasons | 20 | 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 (40 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 8 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 12 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 8 | 32.2 | 35 | 19 | 5 | 25 | 5.23 |
| Away | 12 | 38.1 | 51 | 33 | 13 | 24 | 7.75 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2024-07-05 | PIT | NYN | — | 2.0 | 1 | 0 | 0 | 1 | 3 | 0 |
| 2024-06-28 | PIT | ATL | — | 3.0 | 2 | 0 | 0 | 1 | 3 | 0 |
| 2024-06-24 | PIT | CIN | — | 2.0 | 4 | 4 | 4 | 0 | 1 | 1 |
| 2024-06-21 | PIT | TBR | — | 3.0 | 3 | 3 | 3 | 0 | 1 | 1 |
| 2024-05-01 | SFG | BOS | L | 2.2 | 5 | 4 | 4 | 2 | 3 | 0 |
| 2024-03-31 | SFG | SDP | L | 2.0 | 9 | 9 | 5 | 0 | 1 | 2 |
| 2022-05-18 | OAK | MIN | L | 4.0 | 7 | 6 | 6 | 3 | 5 | 0 |
| 2022-05-13 | OAK | LAA | L | 6.0 | 5 | 2 | 2 | 0 | 4 | 1 |
| 2022-05-08 | OAK | MIN | L | 5.0 | 7 | 4 | 4 | 0 | 3 | 0 |
| 2022-05-02 | OAK | TBR | L | 5.0 | 11 | 6 | 6 | 0 | 4 | 1 |
Fielding Statistics
Career Fielding Totals by Position
Season-by-Season Fielding
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 20 |
Daulton Jefferies: the record in brief
Daulton Jefferies's entire major league record comes from the period beginning September 12, 2020. By club, Jefferies's seasons break down as the Oakland Athletics (2020 to 2022), the San Francisco Giants (2024), and the Pittsburgh Pirates (2024). Listed as a pitcher, Jefferies hit left-handed while throwing right-handed. Height and weight on file: 6-foot-0 and 182 pounds. The birth record reads August 2, 1995, in Merced, CA, USA. Jefferies's full given name, per the bio, is Daulton Compton Jefferies.
Jefferies went 2-10 with a 6.59 ERA in 20 games, 11 of them starts. The totals include 49 strikeouts. The league ERA over Jefferies's seasons was 4.14, so the 6.59 figure ran 59.2% worse than average. 2022 was Jefferies's sharpest full season, a 5.72 ERA against the league's 3.97. Jefferies's career Pitcher PIV, which scores run prevention against each season's league, is 57.2.
The game-log section draws on 40 games of Retrosheet box scores for Jefferies.
Jefferies appears at one position only: pitcher, in 20 games. Fielding on the mound produced 9 putouts and 4 assists against 0 errors.
Frequently Asked Questions about Daulton Jefferies
- What years did Daulton Jefferies play?
- Daulton Jefferies played in Major League Baseball from 2020 to 2024.
- Was Daulton Jefferies a pitcher?
- Yes. Daulton Jefferies pitched in the major leagues, recording 2 wins and 49 strikeouts.
- What was Daulton Jefferies's career ERA?
- Daulton Jefferies finished with a 6.59 career ERA, going 2-10 with 49 strikeouts.
- How many strikeouts did Daulton Jefferies have?
- Daulton Jefferies recorded 49 career strikeouts.
- Is Daulton Jefferies in the Hall of Fame?
- No. Daulton Jefferies has not been inducted into the National Baseball Hall of Fame.
- What teams did Daulton Jefferies play for?
- Daulton Jefferies played for the Athletics, the San Francisco Giants, and the Pittsburgh Pirates.