Heliodoro Díaz
Pitcher · Career Stats, Bio & Records
Heliodoro Díaz was a pitcher who played in Major League Baseball for the Cuban Stars West and the New York Cubans. Across 105 career appearances, he went 28-50 with a 4.35 ERA and 432 strikeouts. He also batted .209 with 3 home runs. His totals include Negro Leagues seasons, which MLB recognized as major league in 2020. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 9111.5.
- 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
- 5'5" / —
- Died
- 1989
Full name: Heliodoro Bernardo Díaz
Negro Leagues (season totals). Additive Retrosheet-digitized totals for seasons not already in the logs above; they are not summed into the career line. No team/league breakdown is available, and coverage may be partial.
Negro Leagues Season-by-Season Batting
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1926 | CSW | NNL | 6 | 11 | 27 | 17 | 11 | 1 | 1 | 156.0 | 184 | 99 | 63 | 81 | 5.71 | 4.11 (-39%) | -1228.2 |
| 1927 | CSW | NNL | 5 | 11 | 20 | 16 | 11 | 1 | 0 | 135.2 | 141 | 64 | 50 | 80 | 4.25 | 4.08 (-4%) | 1148.5 |
| 1928 | CSW | NNL | 3 | 14 | 19 | 15 | 12 | 0 | 1 | 140.1 | 138 | 67 | 56 | 99 | 4.30 | 4.13 (-4%) | 3063.1 |
| 1929 | CSW | NNL | 6 | 8 | 17 | 13 | 11 | 0 | 0 | 122.0 | 109 | 54 | 44 | 101 | 3.98 | 4.60 (+13%) | 4573.8 |
| 1930 | CSW | NNL | 8 | 5 | 20 | 12 | 9 | 0 | 1 | 114.0 | 109 | 41 | 42 | 65 | 3.24 | 4.80 (+33%) | 1536.1 |
| 1935 | NYC | NN2 | 0 | 1 | 2 | 1 | 1 | 0 | 0 | 11.0 | 11 | 3 | 7 | 6 | 2.45 | 4.35 (+44%) | 18.2 |
| Career · 6 seasons | 28 | 50 | 105 | 74 | 55 | 2 | 3 | 679.0 | 692 | 328 | 262 | 432 | 4.35 | — | 9,111 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 122 | 278 | 22 | 58 | 9 | 0 | 3 | 29 | 1 | 26 | 3 | .209 | .276 | .273 | .550 | -1,125 |
Career AVG .209 vs. league average .284 across their career seasons — 26.6% below league average.
Career OBP .276 vs. league average .347 across their career seasons — 20.4% below league average.
Career SLG .273 vs. league average .404 across their career seasons — 32.3% below league average.
Career OPS .550 vs. league average .751 across their career seasons — 26.8% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1926 | CSW | NNL | 27 | 53 | 4 | 7 | 1 | 0 | 0 | 4 | 0 | 6 | 0 | .132 | .279 (-53%) | .345 (-36%) | .390 (-61%) | .735 (-50%) | -422.4 |
| 1927 | CSW | NNL | 22 | 51 | 3 | 7 | 1 | 0 | 0 | 2 | 0 | 4 | 0 | .137 | .282 (-51%) | .344 (-42%) | .392 (-60%) | .736 (-52%) | -426.7 |
| 1928 | CSW | NNL | 20 | 56 | 1 | 11 | 0 | 0 | 0 | 3 | 0 | 3 | 0 | .196 | .280 (-30%) | .342 (-31%) | .395 (-50%) | .737 (-41%) | -368.0 |
| 1929 | CSW | NNL | 17 | 45 | 5 | 16 | 4 | 0 | 2 | 8 | 0 | 6 | 0 | .356 | — | — | — | — | 252.6 |
| 1930 | CSW | NNL | 25 | 52 | 7 | 12 | 2 | 0 | 1 | 10 | 1 | 6 | 1 | .231 | .293 (-21%) | .354 (-12%) | .429 (-24%) | .784 (-19%) | -160.1 |
| 1935 | NYC | NN2 | 11 | 21 | 2 | 5 | 1 | 0 | 0 | 2 | 0 | 1 | 2 | .238 | — | — | — | — | 0.0 |
| Career · 6 seasons | 122 | 278 | 22 | 58 | 9 | 0 | 3 | 29 | 1 | 26 | 3 | .209 | — | — | — | — | -1,125 | ||
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 (21 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 11 | 20 | 1 | 4 | 0 | 0 | .200 |
| Away | 6 | 8 | 1 | 2 | 0 | 0 | .250 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 2 | 2.1 | 2 | 0 | 6 | 4 | 0.00 |
| Away | 2 | 16.0 | 21 | 2 | 2 | 2 | 1.12 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1936-08-25 | CUS | PH5 | L | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1935-08-25 | NY6 | BRN | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1935-08-24 | NY6 | BRN | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1935-08-17 | NY6 | NW1 | W | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1935-08-04 | NY6 | CAG | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1935-07-31 | NY6 | HOM | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1935-07-27 | NY6 | HOM | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1935-07-21 | NY6 | HOM | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1935-07-14 | NY6 | CAG | W | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1935-07-07 | NY6 | NSH | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Last 4 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1936-08-25 | CUS | PH5 | L | 8.0 | 13 | 7 | 0 | 0 | 0 | 0 |
| 1935-06-16 | NY6 | NSH | — | 2.1 | 2 | 2 | 0 | 4 | 4 | 0 |
| 1935-06-06 | NY6 | NW1 | L | 0.0 | 0 | 5 | 0 | 2 | 0 | 0 |
| 1935-05-12 | NY6 | PTC | L | 8.0 | 8 | 2 | 2 | 2 | 2 | 0 |
Fielding Statistics
Career Fielding Totals by Position
| Position | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|
| 1B | 2 | 0 | 7 | 0 | 0 | 0 |
| C | 8 | 7 | 50 | 7 | 1 | 0 |
| OF | 2 | 0 | 2 | 0 | 0 | 0 |
| P | 105 | 73 | 24 | 191 | 15 | 8 |
Season-by-Season Fielding
| Year | Team | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|---|
| 1926 | CSW | P | 27 | 17 | 8 | 52 | 3 | 3 |
| 1927 | CSW | P | 20 | 16 | 5 | 32 | 3 | 1 |
| 1928 | CSW | 1B | 1 | 0 | 6 | 0 | 0 | 0 |
| 1928 | CSW | P | 19 | 14 | 3 | 33 | 3 | 2 |
| 1929 | CSW | P | 17 | 13 | 6 | 34 | 3 | 1 |
| 1930 | CSW | OF | 2 | 0 | 2 | 0 | 0 | 0 |
| 1930 | CSW | P | 20 | 12 | 2 | 38 | 3 | 1 |
| 1935 | NYC | 1B | 1 | 0 | 1 | 0 | 0 | 0 |
| 1935 | NYC | C | 8 | 7 | 50 | 7 | 1 | 0 |
| 1935 | NYC | P | 2 | 1 | 0 | 2 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 105 |
| Catcher | 8 |
| First Base | 2 |
| Left Field | 1 |
| Right Field | 1 |
Most Similar Players
Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.
Heliodoro Díaz: the record in brief
The season rows for Heliodoro Díaz begin in 1926. Díaz played for the Cuban Stars West (1926 to 1930) and the New York Cubans (1935). Born on June 5, 1905, in Puerto Padre, Oriente, Cuba, Díaz is listed as a pitcher and threw and hit right-handed. The bio records the death in 1989. The given name on file is Heliodoro Bernardo Díaz.
Díaz went 28-50 with a 4.35 ERA in 105 games, 74 of them starts. Also on Díaz's record: 432 strikeouts and 55 complete games. Díaz's 4.35 ERA was close to the 4.34 league figure for those seasons. Díaz won 8 games in 1930, the most of any season listed. The strikeout high was 101 in 1929. 1930 was Díaz's sharpest full season, a 3.24 ERA against the league's 4.80. By Pitcher PIV, Baseball Data Hub's measure of run prevention relative to each season's league, Díaz's career adds up to 9,111.5.
Frequently Asked Questions about Heliodoro Díaz
- Was Heliodoro Díaz a pitcher?
- Yes. Heliodoro Díaz pitched in the major leagues, recording 28 wins and 432 strikeouts.
- How many home runs did Heliodoro Díaz hit?
- Heliodoro Díaz hit 3 career home runs with 58 hits.
- What teams did Heliodoro Díaz play for?
- Heliodoro Díaz played for 2 teams: the Cuban Stars West (1926–1930) and the New York Cubans (1935).
- What were Heliodoro Díaz's career stats?
- In 105 games, Heliodoro Díaz went 28-50 with a 4.35 ERA, 432 strikeouts, 679.0 innings pitched, and 3 saves. At the plate he had 58 hits and 3 home runs.
- What position did Heliodoro Díaz play?
- Heliodoro Díaz played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Heliodoro Díaz?
- Heliodoro Díaz was listed at 5 feet 5 inches.
- What was Heliodoro Díaz's career ERA?
- Heliodoro Díaz finished with a 4.35 career ERA, going 28-50 with 432 strikeouts.
- How many strikeouts did Heliodoro Díaz have?
- Heliodoro Díaz recorded 432 career strikeouts.
- Is Heliodoro Díaz in the Hall of Fame?
- No. Heliodoro Díaz has not been inducted into the National Baseball Hall of Fame.