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1019 MLB players carry at least 10 logged games in a prop market here, across 5 markets and 117397 measured player-games. Hits is the widest field, with 535 measurable players and a median coin-flip line of 0.5. The window is the 120 days to 2026-09-20, which is what the box scores currently reach back to for this league. These are records of games that have been played. Nothing here forecasts the next one, and no price is quoted — prices move through the day and this page is rebuilt once.
One row per market. "Median player" is the middle of the measured field, not an average of averages, and the coin-flip column is the median of each player’s own most balanced threshold — so it describes a typical line in this market rather than any line on offer.
| Market | Players measured | Logged games | Median player | Median coin-flip line |
|---|---|---|---|---|
| Hits | 535 | 33047 | 0.7 hits | Over 0.5 |
| RBIs | 490 | 32225 | 0.4 RBIs | Over 0.5 |
| Hits Allowed | 484 | 12258 | 1.2 hits allowed | Over 1.5 |
| Strikeouts | 484 | 12258 | 1.3 strikeouts | Over 1.5 |
| Home Runs | 372 | 27609 | 0.1 home runs | Over 0.5 |
The MLB field splits in two, and the split is worth knowing before reading any row of the table. The batter markets — hits, home runs, RBIs — draw on everyday players with well over a hundred games logged in a season. The pitcher markets, strikeouts and hits allowed, draw on starters who work once every fifth day and finish a season with around thirty. Both appear in the same table with the same column headings.
That is why the logged-games column is not a footnote on this league: a batter market and a pitcher market can show similar player counts and be built on samples that differ by a factor of five. The median coin-flip line for a pitching market is a median over shallower logs, and it should be read with that in mind rather than as the same kind of number as the hits median beside it.
The market list is also shorter than the NBA’s, which is a fact about pricing rather than about baseball. Books post a narrow set of MLB player props consistently enough to measure; the box score records a great deal more that no one prices, and this section only builds a page where there is a priced market and a real field behind it.
Official box scores, one row per game actually played, summarised per player and per market. No projections, no adjustments, and no prices — every page under this one is about how a market has behaved rather than about what is on offer tonight.
Yes, and that is most of why they exist. A game log does not stop being true when the season ends; it stops being added to. These pages are rebuilt daily from whatever the box scores currently reach back to, and they say what window that is.
On the prop pages, which load live prices in the browser. Anything measured against a posted line belongs there rather than here: a cached page cannot correct a price, and a stale one is worse than none.
MLB player props and live odds
Today’s ranked MLB shortlist, from this same measured history
Odds and lines come from licensed data feeds and refresh on a schedule; hit rates, edges and grades are Parlay Builder’s own calculations.