Isidro Marquez
Pitcher · Career Stats, Bio & Records (1995)
Isidro Marquez was a pitcher who played in Major League Baseball in 1995 for the Chicago White Sox. Across 7 career appearances, he went 0-1 with a 6.75 ERA and 8 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
- 5'11" / 220 lb
- MLB Debut
- 1995-04-26
- Last Game
- 1995-05-12
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | CHA | AL | 0 | 1 | 7 | 0 | 0 | 0 | 0 | 6.2 | 9 | 5 | 2 | 8 | 6.75 | — | 0.0 |
| Career · 1 season | 0 | 1 | 7 | 0 | 0 | 0 | 0 | 6.2 | 9 | 5 | 2 | 8 | 6.75 | — | 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.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | CHA | AL | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 1 season | 7 | 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 (14 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 3 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 4 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 3 | 2.1 | 2 | 0 | 0 | 2 | 0.00 |
| Away | 4 | 4.1 | 7 | 5 | 2 | 6 | 10.38 |
Last 7 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1995-05-12 | CHW | SEA | — | 1.0 | 2 | 1 | 1 | 1 | 0 | 1 |
| 1995-05-07 | CHW | KCR | — | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1995-05-06 | CHW | KCR | — | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1995-05-02 | CHW | TOR | L | 0.0 | 1 | 1 | 1 | 0 | 0 | 1 |
| 1995-04-29 | CHW | BOS | — | 2.0 | 1 | 1 | 1 | 1 | 3 | 0 |
| 1995-04-27 | CHW | MIL | — | 0.1 | 2 | 0 | 0 | 0 | 0 | 0 |
| 1995-04-26 | CHW | MIL | — | 1.1 | 3 | 2 | 2 | 0 | 3 | 1 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 7 |
Isidro Marquez: the record in brief
Between the debut on April 26, 1995 and the final game on May 12, 1995, Isidro Marquez built the record summarized on this page. Marquez's only club in the season tables is the Chicago White Sox. Marquez played primarily as a pitcher and threw and hit right-handed. Born on May 14, 1965, in Navojoa, Sonora, México, Marquez was listed at 5 feet, 11 inches and 220 pounds.
Marquez's career pitching line is 0 wins, 1 loss and a 6.75 ERA over 7 appearances. The same table counts 8 strikeouts. The league ERA over Marquez's seasons was 4.45, so the 6.75 figure ran 51.6% worse than average. All of that pitching came in 1995, with 7 games and 8 strikeouts.
The position breakdown shows 7 games, all at pitcher.
Retrosheet box scores cover 14 of Marquez's games, and the full game log is linked from the splits section.
Frequently Asked Questions about Isidro Marquez
- Was Isidro Marquez a pitcher?
- Yes. Isidro Marquez pitched in the major leagues, recording 0 wins and 8 strikeouts.
- What teams did Isidro Marquez play for?
- Isidro Marquez played for one team, the Chicago White Sox (1995).
- What were Isidro Marquez's career stats?
- In 7 games, Isidro Marquez went 0-1 with a 6.75 ERA, 8 strikeouts, and 6.2 innings pitched.
- What position did Isidro Marquez play?
- Isidro Marquez played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Isidro Marquez and how much did he weigh?
- Isidro Marquez was listed at 5 feet 11 inches and 220 pounds.
- What was Isidro Marquez's career ERA?
- Isidro Marquez finished with a 6.75 career ERA, going 0-1 with 8 strikeouts.
- How many strikeouts did Isidro Marquez have?
- Isidro Marquez recorded 8 career strikeouts.
- Is Isidro Marquez in the Hall of Fame?
- No. Isidro Marquez has not been inducted into the National Baseball Hall of Fame.