Mark McGwire 70th Home Run Ball (1998)

Maker: Mark McGwire (St. Louis Cardinals)
Year: 1998
Rank: 33 of 100
Identifier: The ball McGwire hit for his record 70th home run, Sep 27 1998; bought by Todd McFarlane

Mark McGwire 70th Home Run Ball (1998)

Realized at auction: $3,005,000, dated 1999-01-12. This is a realized sale. Somebody paid it.

What is it, and why is it in the FLOAT 100?

The single-season home-run record ball of the era that re-energized baseball.

The ball McGwire hit for his record 70th home run, Sep 27 1998; bought by Todd McFarlane

What is the best-sourced number for it?

Figure: $3,005,000
Kind: Realized at auction
Date: 1999-01-12

A realized auction price is what a buyer actually paid on the date shown, including the buyer's premium where the sale reported it. It is the strongest kind of reference price, and it is a record of one sale of one object on one day, not a promise of what the next example will bring.

By reference price, Mark McGwire 70th Home Run Ball (1998) is number 27 of 100 in the memorabilia entries of the FLOAT 100. 100 of those 100 rest on a realized sale; the rest carry an asking price or a guide value, and each page says which. Rank within the FLOAT 100 itself (33 here) is editorial: how much an object defines its field, not price alone.

How this is made

The figure: One reference price, shown with its own kind. FLOAT does not average it with anything or adjust it for time.
Realized or not: A realized price is a completed sale. A market asking price and a price-guide value are not sales, and are labeled as such wherever they appear.
Why no grade ladder: Most FLOAT 100 entries are individual objects. There is one of this, so there is no population and no spread across grades to show.
Archive: 2026-08-08

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FLOAT is a free tracker. Add the memorabilia you own, keep photos and certificates with each item, and see a value built from real sales at your item's grade. This page is a public reference; it does not offer, price or sell insurance.