PAIR
Surebets between Duel and Marathon
Over the period September 6 – 29, 2026, the Dozor scanner found 41,741 surebets between Duel and Marathon: median life 4.2 s, 4.0% lasted over a minute, median peak ROI 3.7%. Duel and Marathon price events independently and update their lines at different speeds; most gaps come from one book lagging after an in-game event. The pair diverges most often on the “Handicap” market (50% of its surebets), mostly in CS2; 94% were found live.
| Surebets in window | 41,741 |
|---|---|
| Live | 94% |
| Median lifetime | 4.2 s |
| Over a minute | 1,683 (4.0%) |
| Median peak ROI | 3.7% |
| Duel | bookmaker, USD, 704,924 surebets in the window overall — page |
| Marathon | bookmaker, RUB, 300,867 surebets in the window overall — page |
Markets where they diverge
| Market | Surebets | Share |
|---|---|---|
| Handicap | 20,687 | 50% |
| Total | 11,808 | 28% |
| Winner | 7,733 | 19% |
| Match rounds handicap | 948 | 2.3% |
| Match total rounds | 565 | 1.4% |
By game
| Game | Surebets |
|---|---|
| CS2 | 38,259 |
| Valorant | 1,860 |
| Dota 2 | 1,118 |
| League of Legends | 301 |
| Rainbow Six | 2 |
What to check before betting on this pair
- Both books’ settlement rules for the market: overtime, walkovers, how kills are counted. The same market name does not mean the same rules.
- The account currencies differ (USD and RUB): the exchange rate affects the ROI.
- The age of both prices in the scanner card: with a median life of 4.2 s, a surebet with a stale leg has most likely closed already.
Data: Dozor surebet history for September 6 – 29, 2026, 3,711,297 records; the method is in the article “How Long Does a Surebet Last?”. The service is analytical: it does not accept bets and does not guarantee profit. 18+.