Every tipster waves a big "edge %" at you. But that edge has a shelf life, and the clock starts the moment the market opens. We sliced the SharpROI public record by the clock — and the bets that got down early beat the close, while the ones that waited for kickoff handed the value straight back.
"Edge" is the number everyone leads with — how far your price beats the sharp fair value at the moment you fire. It feels like the whole story. But when you get the bet down might say more than how big the number is. So we asked one question of our settled book: across hundreds of graded signals, does the timing of the bet predict ROI the way the edge is supposed to?
Settled signals from the SharpROI public track record, each carrying a recorded edge and a finalised CLV (closing line value). Flat 1-unit staking, half-win / half-loss handled properly. We sliced the same sample two ways: by time to kickoff (how long before the off the bet fired) and by time of day (when, on the clock, it fired). New to the metric? Read our plain-English CLV guide first and come back.
One baseline first. Betting every signal flat returns roughly +5% ROI — a real, positive edge on its own. So edge isn't worthless; it's the trigger that finds the bet. The question is whether reading the clock on top of it gets you somewhere better.
We first spotted this in our 303-signal edge-vs-CLV study. Group the bets by how long before kickoff they went out and the curve is hard to miss:
| Time to kickoff | ROI | Win rate | n |
|---|---|---|---|
| Early (≥ 120 min) | +28.1% | 66% | 41 |
| 60–120 min | +9.3% | 54% | 38 |
| 30–60 min | +6.3% | 54% | 68 |
| Late (< 30 min) | −8.7% | 46% | 99 |
Monotonic and brutal: early bets won, late bets lost. Small-sample fluke? We re-ran it as the book grew. Across n=780 the endpoints held — bets fired ≥120 min out returned +12.9%, while those inside the final <30 min scraped just +3.1%. The spread compresses on the bigger sample (the extremes always soften), but the ranking never flips: early beats late, every cut. By the final half-hour the market has sharpened, the steam has already gone through, and a late entry is buying after the price has corrected.
The second cut is the more surprising one. Group the bets by the time of day they fired (n=478) and the two ends of the clock pull hard in opposite directions:
| Time of day | ROI | What's happening |
|---|---|---|
| Late evening (21:00–24:00) | +33.2% | Thin volume, soft books still lagging the sharp line |
| Morning (06:00–12:00) | −11.3% | European desks awake, the market is efficient — little left to beat |
It comes down to how awake the market is. Late at night the turnover is low and soft books are slow to follow the sharp move, so prices haven't matured — there's value sitting in the lag. Come the efficient European session everyone's at their desk, the number snaps to fair, and there's nothing left to take. Soft, sleepy markets beat sharp, liquid ones — the same reason overnight and early-week lines are the softest a sharp will ever see.
Both findings collapse into one mechanism: the closing line is the market's most accurate price. As a match approaches, the line absorbs every bit of information and sharp money; the mispricings that exist at open get arbitraged out by the close. Get in early and the line closes in your favour — you bank positive CLV, and CLV is the single most reliable predictor of long-run profit. Get in late and you're chasing: the steam has already moved the line and the value's been priced away.
This is exactly why the SharpROI terminal fires a signal the instant the sharp line moves rather than after the dust settles, and why it grades every move C1 to C4 — flagging the late, "tip-soon" C4 moves separately so you know when you're already on the back foot. The whole point is to be in before the line corrects, not after.
SharpROI does the watching so you can be early: it scans the sharpest books around the clock, catches the move while a soft book still lags it, and pushes the signal the moment it fires — leaving you the one job that this data says matters most, getting the bet down before the close.
SharpROI fires the moment the sharp line moves and scores every signal on closing line value and timing — the things this study shows actually move the needle.