Frank Duffy
Shortstop · Career Stats, Bio & Records (1970-1979)
Frank Duffy was a shortstop who played in Major League Baseball from 1970 to 1979 for 4 teams, including the Cincinnati Reds, a span of 10 seasons. In 915 career games, he hit .232 with 619 hits, 26 home runs, and 240 RBI.
- AVG (Batting Average):
- Hits divided by at bats. .300 is the traditional mark of an excellent hitter.
- HR (Home Runs):
- Hits on which the batter circled the bases and scored, almost always by clearing the outfield fence.
- RBI (Runs Batted In):
- Runs that scored as a direct result of a batter's plate appearance.
- OPS (On-Base Plus Slugging):
- On-base percentage plus slugging percentage, the quickest single summary of offensive value. .900 or better is star-level.
Data updated
- Position
- Shortstop
- Bats / Throws
- R / R
- Height / Weight
- 6'1" / 180 lb
- MLB Debut
- 1970-09-04
- Last Game
- 1979-05-11
Full name: Frank Thomas Duffy
Career Batting Statistics
| G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 915 | 2,665 | 248 | 619 | 104 | 14 | 26 | 240 | 49 | 171 | 342 | .232 | .279 | .311 | .590 | -6,070 |
Career AVG .232 vs. league average .256 across their career seasons — 9.4% below league average.
Career OBP .279 vs. league average .323 across their career seasons — 13.6% below league average.
Career SLG .311 vs. league average .377 across their career seasons — 17.5% below league average.
Career OPS .590 vs. league average .700 across their career seasons — 15.7% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1970 | CIN | NL | 6 | 11 | 1 | 2 | 2 | 0 | 0 | 0 | 1 | 1 | 2 | .182 | — | — | — | — | 0.0 |
| 1971 | CIN | NL | 13 | 16 | 0 | 3 | 1 | 0 | 0 | 1 | 0 | 1 | 2 | .188 | — | — | — | — | 0.0 |
| 1971 | SFN | NL | 21 | 28 | 4 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 10 | .179 | — | — | — | — | 0.0 |
| 1972 | CLE | AL | 130 | 385 | 23 | 92 | 16 | 4 | 3 | 27 | 6 | 31 | 54 | .239 | .243 (-2%) | .310 (-4%) | .353 (-8%) | .664 (-6%) | -388.5 |
| 1973 | CLE | AL | 116 | 361 | 34 | 95 | 16 | 4 | 8 | 50 | 6 | 25 | 41 | .263 | .256 (+2%) | .325 (-4%) | .378 (+5%) | .703 (+1%) | -43.5 |
| 1974 | CLE | AL | 158 | 549 | 62 | 128 | 18 | 0 | 8 | 48 | 7 | 30 | 64 | .233 | .256 (-9%) | .324 (-16%) | .369 (-16%) | .693 (-16%) | -1405.3 |
| 1975 | CLE | AL | 146 | 482 | 44 | 117 | 22 | 2 | 1 | 47 | 10 | 27 | 60 | .243 | .257 (-6%) | .327 (-13%) | .374 (-19%) | .701 (-16%) | -1291.3 |
| 1976 | CLE | AL | 133 | 392 | 38 | 83 | 11 | 2 | 2 | 30 | 10 | 29 | 50 | .212 | .255 (-17%) | .320 (-16%) | .360 (-26%) | .681 (-22%) | -1278.9 |
| 1977 | CLE | AL | 122 | 334 | 30 | 67 | 13 | 2 | 4 | 31 | 8 | 21 | 47 | .201 | .264 (-24%) | .329 (-25%) | .401 (-28%) | .730 (-27%) | -1470.4 |
| 1978 | BOS | AL | 64 | 104 | 12 | 27 | 5 | 0 | 0 | 4 | 1 | 6 | 11 | .260 | .257 (+1%) | .323 (-5%) | .378 (-19%) | .702 (-13%) | -191.9 |
| 1979 | BOS | AL | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | — | — | — | — | 0.0 |
| Career · 11 seasons | 915 | 2,665 | 248 | 619 | 104 | 14 | 26 | 240 | 49 | 171 | 342 | .232 | — | — | — | — | -6,070 | ||
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 (914 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 460 | 1237 | 114 | 266 | 14 | 104 | .215 |
| Away | 454 | 1428 | 134 | 353 | 12 | 136 | .247 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1979-05-11 | BOS | OAK | W | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1979-05-09 | BOS | LAA | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1979-05-06 | BOS | SEA | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1979-04-26 | BOS | SEA | W | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1979-04-17 | BOS | MIL | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1979-04-10 | BOS | MIL | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1978-09-27 | BOS | DET | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1978-09-24 | BOS | TOR | W | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1978-09-22 | BOS | TOR | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1978-09-18 | BOS | DET | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Fielding Statistics
Career Fielding Totals by Position
| Position | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|
| 1B | 1 | 0 | 0 | 0 | 0 | 0 |
| 2B | 16 | 7 | 21 | 32 | 0 | 5 |
| 3B | 23 | 3 | 10 | 15 | 1 | 1 |
| SS | 839 | 768 | 1292 | 2445 | 87 | 497 |
Season-by-Season Fielding
| Year | Team | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|---|
| 1970 | CIN | SS | 5 | 2 | 4 | 12 | 0 | 4 |
| 1971 | CIN | SS | 10 | 4 | 10 | 24 | 2 | 5 |
| 1971 | SFN | 2B | 1 | 0 | 1 | 1 | 0 | 0 |
| 1971 | SFN | 3B | 1 | 0 | 0 | 1 | 0 | 0 |
| 1971 | SFN | SS | 6 | 3 | 13 | 17 | 1 | 5 |
| 1972 | CLE | SS | 126 | 117 | 197 | 360 | 13 | 75 |
| 1973 | CLE | SS | 115 | 106 | 198 | 377 | 8 | 82 |
| 1974 | CLE | SS | 158 | 156 | 242 | 491 | 15 | 83 |
| 1975 | CLE | SS | 145 | 137 | 225 | 464 | 16 | 85 |
| 1976 | CLE | SS | 132 | 120 | 222 | 344 | 10 | 83 |
| 1977 | CLE | SS | 121 | 104 | 145 | 301 | 15 | 62 |
| 1978 | BOS | 2B | 12 | 7 | 17 | 29 | 0 | 5 |
| 1978 | BOS | 3B | 22 | 3 | 10 | 14 | 1 | 1 |
| 1978 | BOS | SS | 21 | 19 | 36 | 55 | 7 | 13 |
| 1979 | BOS | 1B | 1 | 0 | 0 | 0 | 0 | 0 |
| 1979 | BOS | 2B | 3 | 0 | 3 | 2 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| First Base | 1 |
| Second Base | 16 |
| Third Base | 23 |
| Shortstop | 839 |
| Designated Hitter | 6 |
College History
| School Name | City | State | Years Attended |
|---|---|---|---|
| Stanford University | Palo Alto | CA | 1966, 1967 |
Most Similar Players
Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.
Frank Duffy (highlighted) compared to peers across the same era.
Frank Duffy: the record in brief
The profile opens with Frank Duffy's first major league game on September 4, 1970; the last one listed came on May 11, 1979. The team column moves through the Cincinnati Reds (1970 through 1971), the San Francisco Giants (1971), the Cleveland Indians (1972 to 1977), and the Boston Red Sox (1978 through 1979). Duffy is listed as a shortstop at 6-foot-1 and 180 pounds. The bio says Duffy threw and hit right-handed. The recorded birth is October 14, 1946, in Oakland, CA, USA. Duffy's full given name, per the bio, is Frank Thomas Duffy.
The batting record for Duffy: 915 games, 619 hits in 2,665 at bats, and a .232 average; the totals also include 26 homers, 240 RBI, and 49 stolen bases. On-base and slugging figures of .279 and .311 give Duffy a career OPS of .590. Measured against the leagues Duffy played in, the .232 career average compares with a .256 league average over the same seasons, 9.4% below the league. The hits column peaks at 128, in 1974. The Lg AVG column puts Duffy's 1973 at .263 against .256, the widest margin among the busiest seasons at 2%.
Frequently Asked Questions about Frank Duffy
- What years did Frank Duffy play?
- Frank Duffy played in Major League Baseball from 1970 to 1979.
- Was Frank Duffy a pitcher?
- No. Frank Duffy was a position player (Shortstop).
- How many home runs did Frank Duffy hit?
- Frank Duffy hit 26 career home runs with 619 hits.
- What was Frank Duffy's career batting average?
- Frank Duffy batted .232 over his career, with 619 hits in 2,665 at bats.
- How many RBI did Frank Duffy have?
- Frank Duffy drove in 240 runs in his career.
- Is Frank Duffy in the Hall of Fame?
- No. Frank Duffy has not been inducted into the National Baseball Hall of Fame.