Odds Archive
Pinnacle line movement — Saturday, April 18, 2026
19 matches · ATP 4 · WTA 4 · CH 11
| MATCH | OPEN → CUR | Δ% | |
|---|---|---|---|
V. Podrez vs S. Cirstea WTA - Singles: Rouen | 6.07 → 5.24 | -13.7% | ↗ |
H. Dellien vs J. C. Prado Angelo Challenger Men - Singles: Santa Cruz | 1.54 → 1.47 | -4.8% | ↗ |
L. Broady vs L. Riedi Challenger Men - Singles: Busan | 1.61 → 1.45 | -9.6% | ↗ |
R. Safiullin vs H. Rocha Challenger Men - Singles: Oeiras 3 | 1.67 → 1.82 | +8.9% | ↗ |
A. Molcan vs B. Shelton ATP - Singles: Munich | 1.44 → 1.39 | -3.4% | ↗ |
V. Royer vs M. Houkes Challenger Men - Singles: Oeiras 3 | 1.41 → 1.38 | -2.3% | ↗ |
A. Rublev vs H. Medjedovic ATP - Singles: Barcelona | 2.42 → 2.58 | +6.6% | ↗ |
M. Kostyuk vs T. Maria WTA - Singles: Rouen | 11.24 → 10.55 | -6.1% | ↗ |
E. Rybakina vs M. Andreeva WTA - Singles: Stuttgart | 1.71 → 1.79 | +5.0% | ↗ |
E. Svitolina vs K. Muchova WTA - Singles: Stuttgart | 2.06 → 2.16 | +4.8% | ↗ |
M. Chwalinska vs R. Montgomery Challenger Women - Singles: Oeiras | 2.99 → 3.13 | +4.7% | ↗ |
C. Tabur vs M. Mmoh Challenger Men - Singles: Tallahassee | 1.69 → 1.66 | -1.9% | ↗ |
C. Tabur vs T. Zink Challenger Men - Singles: Tallahassee | 2.51 → 2.43 | -3.2% | ↗ |
R. Jodar vs A. Fils ATP - Singles: Barcelona | 2.31 → 2.37 | +2.6% | ↗ |
P. Marcinko vs S. Kraus Challenger Women - Singles: Oeiras | 1.99 → 2.04 | +2.5% | ↗ |
A. Zverev vs F. Cobolli ATP - Singles: Munich | 5.14 → 5.20 | +1.2% | ↗ |
S. Fomin vs F. Sun Challenger Men - Singles: Wuning 2 (China) - Qualification | 2.73 → 2.70 | -1.1% | ↗ |
A. Holmgren vs L. Broady Challenger Men - Singles: Busan | 1.35 → 1.35 | 0.0% | ↗ |
A. Bolt vs Y. Bu Challenger Men - Singles: Busan | 1.57 → 1.57 | 0.0% | ↗ |
Tennis Odds Movement Report — Saturday, April 18, 2026
April 18, 2026 saw Pinnacle price 19 tennis matches across 10 tournaments on clay and hard courts, with 5 markets registering a line movement of 5% or more between open and close. Total combined movement across all 19 markets averaged 4.8% per match. The full open-to-close odds comparison for every match is available in the table above. Below is a detailed breakdown of the day's most significant Pinnacle line shifts.
Largest Open-to-Close Changes — April 18, 2026 Tennis
V. Podrez opened at 6.07 in WTA Rouen and closed -13.7% lower at 5.24 — the single largest Pinnacle line move on April 18, 2026. This was followed by L. Riedi in CH-M Busan at -9.6% (1.61 → 1.45, sharp money entered on the favourite), then H. Rocha in CH-M Oeiras 3 at +8.9% (1.67 → 1.82, Pinnacle revised the implied probability downward for the favourite).
The fourth and fifth largest moves came from A. Rublev vs H. Medjedovic in ATP Barcelona (+6.6%, 2.42 → 2.58, odds drifted — money flow favoured the underdog) and M. Kostyuk vs T. Maria in WTA Rouen (-6.1%, 11.24 → 10.55, sharp money entered on the favourite). All five matches showed consistent directional movement from open to close rather than volatile back-and-forth shifts — a pattern more consistent with informed money than with public betting flow.
Pinnacle Line Movement Totals — April 18, 2026
For a typically quiet day in tennis markets, April 18, 2026 produced 19 completed Pinnacle tennis markets with an average line movement of 4.8%. Direction split: 47% of markets saw odds shorten, 42% saw odds drift. The Challenger circuit — which accounted for 58% of the day's matches — showed lower movement activity compared to ATP and WTA events. This is consistent with the pattern in which lower-tier events often see sharper late-market adjustment, as less pre-match data is available at opening.
Frequently Asked Questions — Tennis Odds Line Movement
What does line movement mean in tennis betting?
Line movement refers to a change in the odds offered by a bookmaker between the time a market opens and when it closes just before the match begins. On this page, OPEN shows the initial Pinnacle price and CUR (or CLOSE on archive pages) shows the final price. The Δ% column shows the percentage change. When odds shorten (Δ% is negative for the favourite), it typically means money has come in on that player. When odds drift (Δ% is positive for the favourite), the market is moving against them.
Why does Pinnacle move its lines?
Pinnacle adjusts its odds for two main reasons: to balance its liability (equalising the money on both sides) and to reflect new information — such as injuries, sharp bets, or updated statistical models. Because Pinnacle accepts sharp (professional) bettors without restricting them, their line movements are considered more meaningful than those of recreational bookmakers. A significant Pinnacle line move is widely regarded as one of the most reliable pre-match signals available to the public.
How is the percentage change calculated on this page?
The Δ% figure is calculated as ((CUR − OPEN) / OPEN) × 100. A positive Δ% means the price rose from opening — the player's implied probability decreased in Pinnacle's assessment. A negative Δ% means the price fell — implied probability increased. This is calculated on the raw decimal odds, not converted to any other format. All data is sourced directly from Pinnacle's live and historical odds feed.