Byron McLaughlin
Pitcher · Career Stats, Bio & Records (1977-1983)
Byron McLaughlin was a pitcher who played in Major League Baseball from 1977 to 1983 for the Seattle Mariners and the California Angels, a span of 7 seasons. Across 129 career appearances, he went 16-25 with a 5.11 ERA and 248 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" / 175 lb
- MLB Debut
- 1977-09-18
- Last Game
- 1983-09-27
Full name: Byron Scott McLaughlin
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1977 | SEA | AL | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1.1 | 5 | 4 | 0 | 1 | 27.00 | — | 0.0 |
| 1978 | SEA | AL | 4 | 8 | 20 | 17 | 4 | 0 | 0 | 107.0 | 97 | 52 | 39 | 87 | 4.37 | 3.69 (-19%) | -951.8 |
| 1979 | SEA | AL | 7 | 7 | 47 | 7 | 1 | 0 | 14 | 123.2 | 114 | 58 | 60 | 74 | 4.22 | 4.00 (-5%) | -1249.0 |
| 1980 | SEA | AL | 3 | 6 | 45 | 4 | 0 | 0 | 2 | 90.2 | 124 | 69 | 50 | 41 | 6.85 | 3.84 (-78%) | -4255.6 |
| 1983 | CAL | AL | 2 | 4 | 16 | 7 | 0 | 0 | 0 | 55.2 | 63 | 32 | 22 | 45 | 5.17 | 3.87 (-34%) | 1041.7 |
| Career · 5 seasons | 16 | 25 | 129 | 35 | 5 | 0 | 16 | 378.1 | 403 | 215 | 171 | 248 | 5.11 | — | -5,415 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1977 | SEA | AL | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1978 | SEA | AL | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1979 | SEA | AL | 47 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1980 | SEA | AL | 45 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1983 | CAL | AL | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 5 seasons | 129 | 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 (258 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 63 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 66 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 63 | 194.1 | 199 | 107 | 99 | 137 | 4.96 |
| Away | 66 | 184.0 | 204 | 108 | 72 | 111 | 5.28 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1983-09-27 | LAA | TOR | W | 6.0 | 4 | 1 | 1 | 2 | 3 | 1 |
| 1983-09-19 | LAA | KCR | L | 1.0 | 1 | 2 | 2 | 1 | 1 | 0 |
| 1983-09-17 | LAA | TEX | — | 2.2 | 0 | 0 | 0 | 2 | 3 | 0 |
| 1983-09-13 | LAA | KCR | — | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 |
| 1983-09-10 | LAA | CHW | — | 0.1 | 1 | 1 | 1 | 0 | 0 | 0 |
| 1983-09-05 | LAA | TOR | — | 3.1 | 3 | 1 | 1 | 1 | 4 | 0 |
| 1983-07-22 | LAA | DET | L | 0.2 | 5 | 4 | 4 | 1 | 0 | 0 |
| 1983-07-17 | LAA | BAL | L | 3.0 | 8 | 7 | 7 | 4 | 3 | 0 |
| 1983-07-12 | LAA | DET | — | 7.0 | 9 | 4 | 4 | 3 | 6 | 0 |
| 1983-07-09 | LAA | BOS | — | 0.1 | 1 | 1 | 1 | 0 | 0 | 0 |
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 | 129 |
Most Similar Players
Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.
Byron McLaughlin (highlighted) compared to peers across the same era.
Byron McLaughlin: the record in brief
Byron McLaughlin played a first major league game on September 18, 1977 and a last one on September 27, 1983. The season rows list, in order, the Seattle Mariners (1977 to 1980) and the California Angels (1983). McLaughlin played primarily as a pitcher and threw and hit right-handed. Born on September 29, 1955, in Van Nuys, CA, USA, McLaughlin was listed at 6-foot-1 and 175 pounds. The given name on file is Byron Scott McLaughlin.
McLaughlin's career pitching line is 16 wins, 25 losses and a 5.11 ERA over 129 appearances. The totals include 248 strikeouts and 16 saves. Against a 3.88 league ERA for the same seasons, the 5.11 mark was 31.8% worse. The best win total was 7, in 1979. McLaughlin struck out 87 batters in 1978, a career high. McLaughlin saved 14 games in 1979, the season high. 1979 was McLaughlin's sharpest full season, a 4.22 ERA against the league's 4.00.
Every defensive appearance on record for McLaughlin, 129 games, came at pitcher. On the mound, the fielding record shows 4 errors alongside 10 putouts and 35 assists.
Retrosheet box scores cover 258 of McLaughlin's games, and the full game log is linked from the splits section.
The closest statistical comparisons on the page are Manny Aybar, Frank Wills, and Dennis Powell.
Frequently Asked Questions about Byron McLaughlin
- What years did Byron McLaughlin play?
- Byron McLaughlin played in Major League Baseball from 1977 to 1983.
- Was Byron McLaughlin a pitcher?
- Yes. Byron McLaughlin pitched in the major leagues, recording 16 wins and 248 strikeouts.
- What was Byron McLaughlin's career ERA?
- Byron McLaughlin finished with a 5.11 career ERA, going 16-25 with 248 strikeouts.
- How many strikeouts did Byron McLaughlin have?
- Byron McLaughlin recorded 248 career strikeouts.
- Is Byron McLaughlin in the Hall of Fame?
- No. Byron McLaughlin has not been inducted into the National Baseball Hall of Fame.
- What teams did Byron McLaughlin play for?
- Byron McLaughlin played for the Seattle Mariners and the California Angels.