Closing Line Value Report — Monday, April 20, 2026
April 20, 2026 brought 12 tennis matches to the Pinnacle closing line tracker, spanning 2 tournaments across hard and clay courts. Sharp money was active throughout the day, with 2 matches showing meaningful line movement before close. Below is a full breakdown of closing line value results, notable upsets, and market behaviour for the day.
Biggest CLV Movers
Three matches stood out for Pinnacle line movement. L. Staeheli in Shymkent saw the biggest shift at 4.1%, opening at 2.77 before closing at 2.66. The outcome — a loss (6-0 6-7 1-6) — confirmed the market's directional accuracy. M. Jones was the second mover, with a 3.6% change in Gwangju (3.46 → 3.34) — bettors who anticipated this move captured +3.6% CLV. The third mover, K. Wehnelt, drifted 2.6% in Shymkent against E. Kirkin.
Upsets and Surprise Results
The standout upset came in Shymkent, where P. Bar Biryukov defeated G. Brouwer despite opening at odds of 2.86. The final score of 3-6 6-1 6-3 confirmed that Pinnacle's initial pricing had underestimated the winner. Markets occasionally misprice matches on the Challenger circuit, where player form and surface records are harder to model — this appears to have been one such case.
Tournament Final Recap
R. Tokuda versus M. Sharipov in the Gwangju final was the most closely watched market. Opening prices were R. Tokuda at 3.09 and M. Sharipov at 1.38. The market opened and closed at identical prices for M. Sharipov. Bettors who backed M. Sharipov at open saw minimal CLV movement — the market remained stable right through to match time.
CLV Summary — By the Numbers
Across all 12 matches, 75% of Pinnacle favourites won, 1.0% was the average absolute line movement, and 4 matches offered positive CLV to the favourite backer. The Challenger circuit accounted for 100% of the day's volume. Surface breakdown: 8 hard court matches, 4 clay, 0 grass.
Frequently Asked Questions — Closing Line Value in Tennis Betting
What is closing line value (CLV) in tennis betting?
Closing line value measures the difference between the odds you bet at and the final odds Pinnacle offered just before the match started. If you bet at 2.00 and the match closed at 1.80, you have positive CLV — you got a better price than the final market. CLV is widely considered the most reliable indicator of long-term profitability in sports betting, because Pinnacle's closing line incorporates all available sharp money and represents the most accurate probability estimate available to the public.
Why does DeuceHQ use Pinnacle as the reference bookmaker?
Pinnacle is the industry benchmark for sharp money. Unlike most bookmakers, Pinnacle does not limit or ban winning bettors — they welcome sharp action. This means their odds reflect the true market consensus and are harder to beat. When Pinnacle's line moves significantly from open to close, it signals that informed bettors have entered the market. The vs mkt column on this page compares Pinnacle's closing price to the average of other major bookmakers, showing where the sharpest market diverged from the wider betting market.
How is the CLV percentage calculated on this page?
CLV% measures the value of your bet relative to the closing line: ((odds you bet at − closing odds) / closing odds) × 100. On this page we use Pinnacle's opening price as the reference — the CLV% shows what you would have captured by betting at open. A positive CLV% means the odds shortened from open to close (you would have obtained a better price than the final market); a negative CLV% means the odds drifted. All calculations use Pinnacle's official open and close prices sourced in real time.