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With no line posted, over 44 MLB games since August 2026, Zack Gelof has gone over a balanced line of 0.5 RBIs 16 times (36%), and over their last 10 they have done it 5 times (50%). They average 0.6 RBIs across those 44 games. Their last 5 (0.6) are in line with their 0.6 this season (44 games), so there is no recent move to read into. These are measured box-score results from Athletics games, not a projection, and on their own they say nothing about whether the posted price is worth taking.
| Line | All 44 | Last 10 | Last 5 |
|---|---|---|---|
| Over 0.5 RBIs | 16 of 44 (36%) | 5 of 10 (50%) | 2 of 5 (40%) |
| Over 1.5 RBIs | 9 of 44 (20%) | 3 of 10 (30%) | 1 of 5 (20%) |
These are common half-point lines measured against the logged games above, not the lines posted for Zack Gelof right now. The live board at the top of this page carries those, and it updates through the day.
Zack Gelof has averaged 0.6 RBIs over their last 5, against 0.6 across all 44 logged games, no meaningful move either way.
| Window | Average |
|---|---|
| Last 5 games | 0.6 RBIs |
| Last 10 games | 0.9 RBIs |
| All 44 logged games | 0.6 RBIs |
| Best in the log | 3 |
| Worst in the log | 0 |
| Home (24 games) | 0.7 RBIs |
| Away (20 games) | 0.5 RBIs |
Zack Gelof's highest in this log is 3 RBIs against the Cleveland Guardians on 2026-09-18, and the lowest is 0 against the Houston Astros on 2026-09-27. Both are single games, not a range to expect.
| Split | Over 0.5 RBIs |
|---|---|
| At home | 10 of 24 (42%) |
| On the road | 6 of 20 (30%) |
| On one day between games | 13 of 38 (34%) |
| On two or more days between games | 2 of 5 (40%) |
| Against the Seattle Mariners | 3 of 7 (43%) |
| Against the Houston Astros | 2 of 7 (29%) |
| Against the Tampa Bay Rays | 2 of 6 (33%) |
| Against the Texas Rangers | 2 of 6 (33%) |
Zack Gelof has cleared 0.5 RBIs 12 points more often at home, 42% in 24 home games against 30% in 20 away.
A day between games has not moved the number much: 34% on one day, 40% on two or more.
Their deepest matchup sample is 7 games against the Seattle Mariners, 3 of them over 0.5 RBIs.
A split appears only where both sides have 5 games or more behind them.
| Date | Opponent | Venue | RBIs |
|---|---|---|---|
| 2026-09-27 | Houston Astros | Home | 0 |
| 2026-09-26 | Houston Astros | Home | 1 |
| 2026-09-25 | Houston Astros | Home | 0 |
| 2026-09-24 | Houston Astros | Home | 2 |
| 2026-09-23 | Los Angeles Angels | Home | 0 |
| 2026-09-22 | Los Angeles Angels | Home | 2 |
| 2026-09-20 | Cleveland Guardians | Away | 0 |
| 2026-09-19 | Cleveland Guardians | Away | 1 |
| 2026-09-18 | Cleveland Guardians | Away | 3 |
| 2026-09-17 | Tampa Bay Rays | Away | 0 |
Zack Gelof of the Athletics in RBIs, measured from official MLB box scores rather than from anybody's projection. The table above is their hit rate at every threshold their own distribution supports, over three nested windows, each with its own denominator. Below it are the games themselves. There is no line and no price on this page because none is posted; when one is, it loads live above this text and this history is what it will be measured against.
Calculated by the ParlayBuilder Prop Engine.
Every figure on this page is counted from official MLB box scores, one row per game actually played. No projections, and a game the player missed is absent rather than scored as a zero. Where a hit rate is compared with the live price, it is first pulled toward that price in proportion to how thin the sample is, so three-for-three does not read here as a certainty.
Past performance does not predict future results, and Parlay Builder does not accept wagers, hold funds or settle bets. This is measured history and a price, and what you do with them is your decision.
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There is none posted at the moment, which is why this page shows thresholds drawn from their own game log instead. Those are facts about games already played and they do not go stale; a line does, which is why one is never printed into a cached page here.
The table above answers that at every threshold their log supports, over all their logged games and over the last ten and five, so a recent run and a full record can be read side by side rather than confused for each other.
Official box scores, one row per game played, loaded four times a day and rebuilt into this page daily. Games the player missed are absent rather than counted as zero, so the averages describe games they were actually in.
All Zack Gelof props and hit rates
How MLB prop markets behave, measured across the league
Odds and lines come from licensed data feeds and refresh on a schedule; hit rates and grades are Parlay Builder’s own calculations.