The saying "Records are made to be broken" is about as old as the existence of sports records themselves. But in baseball, some achievements truly stretch the limits of that adage.
Johnny Vander Meer's back-to-back no-hitters is one of those achievements. Only a handful of the 200-plus pitchers with a no-hitter have managed even a few perfect innings during their next trip to the mound. Vander Meer's pair might indeed turn out to be "unbreakable," or as close to that term as possible, and it calls to mind a handful of other records that are collecting dust as years go by.
Joe DiMaggio's 56-game hit streak is one of the most famous "unbreakable" records, but his .357 average in 1941 suggests that -- with all the right circumstances in play -- a high-average, low-walk hitter could someday approach "Joltin' Joe." How that player would handle the media scrutiny as he approaches the mythical "56" is another story, of course.
With Vander Meer and DiMaggio in mind, here are a handful of other modern records that seem "unbreakable." Some of them you'll know right away; others may surprise you. (For the purposes of this exercise, we are sticking to records that could feasibly be broken, so Cy Young's record of 749 complete games, for example, is not part of this conversation.)
The records you likely know
Ichiro's 262 hits in 2004
Few players have thrilled fans in as many different ways as Ichiro, and that included his impeccable bat control and timing at the plate. Breaking Ichiro's single-season hit mark would require an uncommon combination of consistency, opportunities and the ability to make contact -- an increasing rarity in the modern game. Plus, Ichiro logged 704 at-bats in that magical 2004 season, one of only four players to cross the 700 at-bat plateau in a single campaign. So to break this record, you'd have to hit .373 and log more than 700 ABs. Good luck.
Nolan Ryan's 5,714 strikeouts and 2,795 walks
Even with today's ever-escalating strikeout climate, it's hard to imagine anyone pitching with both the ferocity and dizzying longevity needed to catch Ryan. Chris Sale would have to repeat his 308-strikeout 2017 season each season for more than a decade to even get Ryan's attention. The Ryan Express' desire to strike out every hitter had its trade-off, producing a walk record also unlikely to be equaled. But we'll likely never see another pitcher quite like him, in either regard.
Rickey Henderson's 1,406 career steals and 130 steals in 1982
Baseball is a cyclical game, but right now, it's hard to imagine the stolen base being featured again like it was in Henderson's heyday. The last player to attempt 130 steals in a season was Vince Coleman in 1985, and 35-year-old Jose Reyes is the active steals leader with just 514. Billy Hamilton, 27, would need to average about 115 steals over each of the next 10 seasons (nearly twice his career high) to approach the "Man of Steal."
Hack Wilson's 191 RBIs in 1930
Driving in runs is one of the more dependent statistics in baseball. While there's no doubt Wilson went on an absolute tear in 1930 (.356/.454/.723 with 56 home runs), he also played in an extreme offensive environment (a record six players topped 150 RBIs that year) and had a pair of superb table-setters in front of him in Kiki Cuyler (.428 OBP) and Woody English (.430). Manny Ramirez's 165 RBIs in 1999 stand as the closest recent attempt, but it still fell about a month's worth short of Wilson's mark.
Chief Wilson's 36 triples in 1912
Wilson never again hit half as many triples as he did in this historic year, pointing to how difficult this kind of campaign would be. Rockies center fielder Charlie Blackmon's 14 triples -- 13 of them hit at home in spacious Coors Field -- paced baseball in 2017, when MLB hitters combined for the fewest triples in the modern era.
Barry Bonds' 232 walks in 2004
With the kind of power that could persuade managers to intentionally walk him in the first inning or with the bases loaded, no one in baseball history tested the limits of statistics quite like Bonds. For context, only one player other than Bonds has walked at least 170 times in a season (Babe Ruth, 1923), and Bonds alone piled up more than half the walks that the entire Pirates squad drew in 2004. He was also issued 120 intentional passes that year, and only one player other than Bonds -- who had 68 IBBs in 2002 and 61 in '03 -- has ever drawn more than 45 in one year (Willie McCovey, 1969).
Babe Ruth's 177 runs scored in 1921
Like Wilson's RBI mark, Ruth got a good bit of help from a lineup that collectively hit .300 and averaged 6.2 runs. But don't shortchange the 353 times that "The Bambino" reached base, which still stands as the fifth-highest single-year total in history. Hitting 59 homers will go a long way, too, of course. Even at his peak, Bonds never scored 150 times in a season; Jeff Bagwell (152 runs in 2000) is the most recent player to crack 150, and he was the first since Ted Williams in 1949.
Pete Rose's 15,890 plate appearances and 4,256 hits
It is conceivable that Ichiro could be within shouting distance of Rose's hit mark had he debuted in America well before his age-27 season. It's much harder to imagine any player not only equaling Rose's 24 big league seasons, but also maintaining the excellence required to average 662 plate appearances per season as the Hit King did. Manny Machado, who entered Friday leading all current 25-and-under players with 2,366 plate appearances, would need to plan on a 694-plate-appearance pace over the next 19 1/2 seasons to challenge Rose.
Cal Ripken Jr.'s 2,632 straight games played
Plenty has been written about the streak of the "Iron Man," who not only matched Lou Gehrig's once-unbreakable mark, but kept on playing for another three straight seasons. The longest streak recorded by any player since is Miguel Tejada's 1,152 games from 2000-07 -- not even half of Ripken's total. Alcides Escobar, the Majors' current streak leader, had played 396 games in a row entering Friday.
Hank Aaron's 6,856 career total bases
Bonds may have eclipsed Aaron as the Home Run King, but no one comes close to "Hammerin' Hank" in this measure of metronomic power. Stan Musial still stands closest to Aaron with 6,134 total bases, while Jose Pujols (5,552 total bases entering Friday) would need to average about 373 over the remaining 3 1/2 seasons of his contract -- a total he hasn't reached since he won his last Most Valuable Player Award in 2009.
Off the beaten path
Ron Hunt's 50 hit by pitches in 1971
Eclipsed only by Hughie Jennings' 51 body blows recorded before the founding of the American League, Hunt's rather painful '71 campaign hasn't been seriously challenged in nearly half a century. Hall of Famer Craig Biggio, second all time with 285 hit by pitches in his career, could only peak at 34 plunkings in 1997.
Reggie Cleveland's 3 home runs allowed in 1976
With a record 6,105 homers logged in 2017, and plenty more clearing the fence in '18, this is most certainly the wrong climate for any qualified pitcher to challenge Cleveland's mark for any non-strike season in the Integration Era (1947-present).
Jody Davis' 89 baserunners caught stealing in 1986
Davis' total ties for 166th all time, but everyone ahead of him played before the end of World War II and integration. Davis raced past Gary Carter's 75 caught-stealing throws in 1983, and no other backstop has reached 70 since Tom Pagnozzi in '91. As we referenced with Henderson above, there simply aren't enough steal attempts now to create an environment where one could throw out baserunners like Davis did for the Cubs more than 30 years ago. Tucker Barnhart, the Majors' leader with 28 caught-stealing throws in 2017, was only challenged 69 times.
Joe Sewell's three-strikeout season in 1932
An easy candidate for the toughest hitter to strike out in the history of the game, Sewell's career punchout percentage (.014 percent) is best described as "microscopic." The Hall of Famer's three strikeouts over 576 plate appearances in 1932 -- the fewest of any qualified season with at least 502 trips to the plate -- was matched by 12 players on Opening Day, 183 players within the first week and 289 players by the end of April this season.
Matt Kelly is a reporter for MLB.com based in New York. Follow him on Twitter at @mattkellyMLB.