Onan Masaoka
Pitcher · Career Stats, Bio & Records (1999-2000)
Onan Masaoka was a pitcher who played in Major League Baseball from 1999 to 2000 for the Los Angeles Dodgers, a span of 2 seasons. Across 83 career appearances, he went 3-5 with a 4.23 ERA and 88 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 6.4.
- 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 / L
- Height / Weight
- 6'0" / 188 lb
- MLB Debut
- 1999-04-05
- Last Game
- 2000-09-30
Full name: Onan Kainoa Satoshi Masaoka
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | LAN | NL | 2 | 4 | 54 | 0 | 0 | 0 | 1 | 66.2 | 55 | 32 | 47 | 61 | 4.32 | 4.71 (+8%) | -600.8 |
| 2000 | LAN | NL | 1 | 1 | 29 | 0 | 0 | 0 | 0 | 27.0 | 23 | 12 | 15 | 27 | 4.00 | 4.77 (+16%) | 607.2 |
| Career · 2 seasons | 3 | 5 | 83 | 0 | 0 | 0 | 1 | 93.2 | 78 | 44 | 62 | 88 | 4.23 | — | 6 | ||
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.
Career Batting Statistics
| G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 83 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | .000 | .000 | .000 | 0 |
Career AVG .000 vs. league average .271 across their career seasons — 100.0% below league average.
Career OBP .000 vs. league average .345 across their career seasons — 100.0% below league average.
Career SLG .000 vs. league average .436 across their career seasons — 100.0% below league average.
Career OPS .000 vs. league average .780 across their career seasons — 100.0% below league average.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | LAN | NL | 54 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | — | — | — | — | 0.0 |
| 2000 | LAN | NL | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 2 seasons | 83 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | — | — | — | — | 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 (166 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 37 | 3 | 0 | 0 | 0 | 0 | .000 |
| Away | 46 | 1 | 0 | 0 | 0 | 0 | .000 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 37 | 45.0 | 36 | 21 | 28 | 38 | 4.20 |
| Away | 46 | 48.2 | 42 | 23 | 34 | 50 | 4.25 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2000-09-30 | LAD | SDP | — | 2.0 | 2 | 1 | 1 | 1 | 2 | 0 |
| 2000-09-28 | LAD | SFG | — | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2000-09-22 | LAD | SDP | — | 0.1 | 0 | 0 | 0 | 1 | 1 | 0 |
| 2000-09-14 | LAD | COL | — | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 |
| 2000-09-12 | LAD | AZ | L | 1.0 | 0 | 1 | 1 | 0 | 1 | 0 |
| 2000-09-09 | LAD | COL | — | 0.2 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2000-09-08 | LAD | COL | — | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 |
| 2000-09-05 | LAD | PIT | — | 1.0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 2000-09-04 | LAD | PIT | — | 0.0 | 2 | 4 | 4 | 2 | 0 | 0 |
| 2000-07-27 | LAD | COL | W | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 83 |
Salary History
Onan Masaoka's recorded salaries total $430,000 over 2 seasons, 1999 to 2000. Masaoka's career, 1999 to 2000, falls within 1985 to 2016, the years the salary data covers.
| Year | Team | League | Salary |
|---|---|---|---|
| 2000 | LAN | NL | $230,000 |
| 1999 | LAN | NL | $200,000 |
| Total recorded salary | $430,000 | ||
Onan Masaoka: the record in brief
Onan Masaoka's major league career runs from a debut on April 5, 1999 to a final game on September 30, 2000. All of the seasons listed were played for the Los Angeles Dodgers. Masaoka played primarily as a pitcher and threw left-handed and batted right-handed. Born on October 27, 1977, in Hilo, HI, USA, Masaoka was listed at 6-foot-0 and 188 pounds. Onan Masaoka was the playing name; the full given name is Onan Kainoa Satoshi.
Masaoka went 3-5 with a 4.23 ERA in 83 games, 0 of them starts. The totals include 88 strikeouts. That 4.23 ERA compares with a 4.74 league average across the same seasons, 10.8% better. 1999 was Masaoka's sharpest full season, a 4.32 ERA against the league's 4.71. Pitcher PIV, the site's era-adjusted run-prevention measure, totals 6.4 for Masaoka's career.
The position breakdown shows 83 games, all at pitcher. On the mound, the fielding record shows 1 errors alongside 2 putouts and 6 assists.
Frequently Asked Questions about Onan Masaoka
- What years did Onan Masaoka play?
- Onan Masaoka played in Major League Baseball from 1999 to 2000.
- Was Onan Masaoka a pitcher?
- Yes. Onan Masaoka pitched in the major leagues, recording 3 wins and 88 strikeouts.
- How many home runs did Onan Masaoka hit?
- Onan Masaoka hit 0 career home runs.
- What teams did Onan Masaoka play for?
- Onan Masaoka played for one team, the Los Angeles Dodgers (1999–2000).
- What were Onan Masaoka's career stats?
- In 83 games, Onan Masaoka went 3-5 with a 4.23 ERA, 88 strikeouts, 93.2 innings pitched, and 1 saves.
- How much did Onan Masaoka earn in his career?
- Onan Masaoka's recorded salaries total $430,000 over 2 seasons, 1999 to 2000. Masaoka's career, 1999 to 2000, falls within 1985 to 2016, the years the salary data covers.
- What was Onan Masaoka's salary?
- Onan Masaoka's last recorded salary was $230,000, in 2000. His highest recorded salary was $230,000, in 2000, and his lowest was $200,000, in 1999. The Salary History table lists each season from 1999 to 2000.
- What position did Onan Masaoka play?
- Onan Masaoka played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Onan Masaoka and how much did he weigh?
- Onan Masaoka was listed at 6 feet and 188 pounds.
- What was Onan Masaoka's career ERA?
- Onan Masaoka finished with a 4.23 career ERA, going 3-5 with 88 strikeouts.
- How many strikeouts did Onan Masaoka have?
- Onan Masaoka recorded 88 career strikeouts.
- Is Onan Masaoka in the Hall of Fame?
- No. Onan Masaoka has not been inducted into the National Baseball Hall of Fame.