Best Price Right Now
Best moneyline: Alex Michelsen -138 at Pinnacle (runner-up -140 at LowVig.ag); Frances Tiafoe +130 at theScore Bet (runner-up +127 at DraftKings).
Compared across 19 sportsbooks. Spread and total best prices are in the board below — the best book often differs by market and by side.
Line Movement
Since Sep 6, 8 PM ET, the moneyline has moved toward Frances Tiafoe (Alex Michelsen price improved from -160 to -138); the spread moved toward Alex Michelsen: Frances Tiafoe opened +2.5, now +2; the total dropped from 40.5 to 40.
| Market | Tracking opened (Sep 6, 8 PM ET) | Now |
|---|---|---|
| Moneyline (best available) | Alex Michelsen -160 / Frances Tiafoe +135 | Alex Michelsen -138 / Frances Tiafoe +130 |
| Spread (Frances Tiafoe, consensus) | +2.5 | +2 (range +1.5 to +2.5) |
| Total (consensus) | 40.5 | 40 |
Full Odds Board
| Sportsbook | Alex Michelsen | Frances Tiafoe | Spread (Frances Tiafoe) | Total | O / U |
|---|---|---|---|---|---|
| 888sport | -150 | +120 | — | — | — |
| Fanatics | -150 | +120 | — | — | — |
| theScore Bet | -160 | +130 | — | — | — |
| ReBet | -167 | +111 | +1.5 (-108) | 40.5 | -111 / -125 |
| Bovada | -150 | +125 | +2 (-115) | 39.5 | -120 / -110 |
| MyBookie.ag | -154 | +120 | +1.5 (-110) | 40.5 | -113 / -127 |
| DraftKings | -156 | +127 | — | — | — |
| Fliff | -155 | +115 | — | — | — |
| BetMGM | -150 | +120 | — | — | — |
| BetRivers | -155 | +123 | +1.5 (-104) | 40.5 | -110 / -120 |
| betPARX | -155 | +123 | +0.5 (+110) | 40.5 | -110 / -120 |
| Bally Bet | -155 | +123 | +0.5 (+110) | 40.5 | -110 / -120 |
| Hard Rock Bet | -155 | +125 | — | — | — |
| Caesars | -160 | +125 | +2.5 (-120) | 39.5 | -125 / -115 |
| FanDuel | -152 | +126 | — | — | — |
| Pinnacle | -138 | +123 | +2 (-109) | 39.5 | -109 / -105 |
| LowVig.ag | -140 | +120 | +2.5 (-122) | 39.5 | -110 / -107 |
| BetOnline.ag | -140 | +120 | +2.5 (-122) | 39.5 | -110 / -107 |
| BetUS | -149 | +119 | +2 (-115) | 40 | -115 / -115 |
Pricing Context: ATP US Open Vig
Lowest-vig sportsbooks for ATP US Open right now: Pinnacle (A, 2.96% avg vig), BetOnline.ag (B, 4.06% avg vig), LowVig.ag (B, 4.06% avg vig). Lower vig means the book keeps less of every dollar wagered — the best single-game price and the best long-run pricing are not always the same book. Pinnacle, which holds a best price on this game, grades A on ATP US Open vig overall.
Frequently Asked Questions
Which sportsbook has the best odds for Alex Michelsen vs Frances Tiafoe?
Best available moneyline right now: Alex Michelsen -138 at Pinnacle (runner-up -140 at LowVig.ag); Frances Tiafoe +130 at theScore Bet (runner-up +127 at DraftKings). Prices refresh hourly — the full board below shows every tracked sportsbook.
Has the line moved for Alex Michelsen vs Frances Tiafoe?
Since Sep 6, 8 PM ET, the moneyline has moved toward Frances Tiafoe (Alex Michelsen price improved from -160 to -138); the spread moved toward Alex Michelsen: Frances Tiafoe opened +2.5, now +2; the total dropped from 40.5 to 40.
How current are these odds?
Odds are refreshed hourly from live sportsbook data (last update: September 7, 2026 at 2:00 PM UTC). Odds change quickly around game time — always verify the price at the book before betting.
How We Calculate These Numbers
- Data Source
- All odds on this page come from The Odds API, which aggregates real-time lines from licensed US and offshore sportsbooks. We track moneyline, spread, and totals markets across every sport with active betting lines.
- Update Frequency
- We pull a fresh snapshot of every tracked market three times per day — at 6:00 AM, 2:00 PM, and 10:00 PM UTC. Each snapshot captures the latest lines from every sportsbook that has posted odds for a given event. The timestamp at the top of each page tells you exactly when the data was last refreshed.
- Vig Calculation
- Vig (short for vigorish, also called juice or overround) measures the margin a sportsbook builds into its odds. We calculate it by converting the odds on each side of a market to implied probabilities, summing those probabilities, and subtracting 100%. For example, a market priced at -110/-110 implies 52.38% on each side — a total of 104.76%, meaning a vig of 4.76%. Lower vig means better value for bettors because you keep more of your winnings.
- Per-Market Breakdown
- We compute vig separately for each market type: moneyline (h2h), point spreads, and totals (over/under). The "average vig" shown for each sportsbook is the mean across all market types weighted by the number of events sampled in each market.
- Grading Scale
- Every sportsbook receives a letter grade based on its average vig: A+ (under 2%) is exchange-level pricing. A (2–3%) is very competitive. B+ (3–4%) is above average. B (4–5%) is the industry standard — a -110/-110 line is 4.76%. C+ (5–6%) is slightly below average. C (6–7%) is below average. D (7–8%) is high vig. D− (8–10%) is very high vig. F (10%+) is predatory pricing. See the full Vig Index Methodology for formulas, worked examples, and known limitations.
- Trend Tracking
- We store daily snapshots for 30 days, allowing us to show 24-hour and 7-day vig trends. A downward trend (improving) means sportsbooks are tightening their lines — often in response to increased competition or higher betting volume as a season heats up.