Dropping Odds Explained: Reading Saved Price Moves

Dropping odds are decimal prices that have become shorter between an opening reference and a later saved price. If a selection moves from 2.00 to 1.80, the decrease is 0.20, or 10% of the opening price.

A drop confirms that a recorded price moved. It does not identify the reason and does not guarantee the selection will win. This guide explains the calculation, the comparisons that are valid, and how to read the football Dropping Odds page on Real Sports Insider.

What are dropping odds?

Decimal odds become “shorter” when the number falls. A move from 2.00 to 1.80 is a shortening price; a move from 2.00 to 2.20 is a lengthening price.

The raw implied rate of decimal odds is calculated as 1 divided by the price. Odds of 2.00 correspond to 50% before bookmaker margin, while 1.80 corresponds to about 55.6%. This does not establish the true probability of the event because the bookmaker’s margin and the rest of the market still matter.

Price movement can occur for many reasons: new information, market activity, changing limits, a corrected feed or a bookmaker adjusting its position. The saved numbers alone do not prove which explanation applies.

How is an odds drop calculated?

Subtract the later price from the opening price, divide the difference by the opening price, then multiply by 100:

Drop % = (opening odds − saved odds) ÷ opening odds × 100

For an illustrative move from 2.00 to 1.80:

1. 2.00 − 1.80 = 0.20
2. 0.20 ÷ 2.00 = 0.10
3. 0.10 × 100 = 10%

The denominator is the opening price. Dividing by 1.80 instead would answer a different question and produce the wrong percentage for this page.

Why the selection, line and period must match

An odds move must compare the same outcome. Two prices are not comparable merely because they belong to the same football match.

• Same selection: home win must be compared with home win, not draw or away win.
• Same line: Over 2.5 must be compared with Over 2.5, not Over 3.5.
• Same period: full-time odds must not be mixed with first-half odds.
• Same bookmaker: an opening price from one book should not be paired with the later price from another and described as that book’s move.

RSI’s underlying odds parsing separates period, market and outcome. Where a raw opening price is available, it belongs to the same bookmaker quote as its later price. This prevents a first-half BTTS price, for example, from being joined to a full-time BTTS selection.

Why RSI shows a reconstructed opening price

The Dropping Odds list works from the saved pick price and the stored percentage decrease. It reconstructs the opening reference with this formula:

Opening odds = saved odds ÷ (1 − drop % ÷ 100)

With saved odds of 1.80 and a 10% drop, the calculation is 1.80 ÷ 0.90 = 2.00. The page can therefore display 2.00 → 1.80.

This is a reconstructed reference, not a complete tick-by-tick chart. The page does not claim to provide a live, bookmaker-by-bookmaker price history. Display rounding can also make a manual reverse calculation differ slightly from the number shown.

Which movements appear on the RSI page?

For each football match, RSI checks saved movements attached to supported prediction markets:

• 1X2 match result;
• goals totals;
• Both Teams to Score;
• handicaps.

A candidate needs a published selection, a valid saved price above 1.00 and a positive recorded decrease below 100%. If several supported selections qualify for one match, the list displays the largest valid saved drop for that match. It does not show every movement from every market.

The Odds Drop sorting option ranks the displayed matches from the largest recorded percentage decrease. The page can also be sorted by league, kickoff time or upcoming fixtures. Changing the sort does not change the stored selection or percentage.

Does a large odds drop predict the winner?

No. An odds drop is market information, not a match result. The price can continue moving after RSI saves the pick, reverse direction, or differ across bookmakers at the same time.

A shorter price may indicate that the market now assigns a higher implied chance to the selection, but it does not prove that the assessment is correct. Red cards, injuries, line-ups and ordinary match variance can still decide the result. A selection at 1.80 can lose just as a selection at 2.00 can win.

This is also why RSI keeps Dropping Odds separate from the site’s other evidence. A recorded move by itself is not presented as verified prediction accuracy, a return on investment or a guaranteed advantage.

How to read the RSI Dropping Odds page

1. Check the match and date. Each daily page contains the available saved movements for that date.
2. Read the market and selection. A row may refer to 1X2, Totals, BTTS or Handicap.
3. Read the arrow. It runs from the reconstructed opening reference to the price stored with the pick.
4. Read the percentage. The displayed negative percentage is the size of the decrease from the opening reference.
5. Treat the saved price as a snapshot. It is not a promise that the same price is currently available.
6. Open the match for context. The Game page shows the available match information and prediction context.

If a match is absent, there may be no valid saved drop among the supported selections. Its absence does not imply stable odds or movement in the opposite direction. A lock or sign-in prompt means prediction details are restricted; the row has not become a different market.

Use the football 1X2 predictions page to review match-result selections separately, or the football totals page for Over and Under selections. Return to Dropping Odds for the current saved price movements.

18+. Prices and predictions can change or lose. A recorded drop does not guarantee a result or profit.