When The International 2023 rolled into Seattle, the esports betting market did what it always does: it narrowed. Favourites got shorter, underdog prices collapsed under the weight of public money, and anyone hunting genuine value had to look past the headline numbers. This 1Win review starts with a single observation from that tournament. Across the 114 main-event and group-stage series we tracked, 1Win sports betting prices on underdogs averaged 7% higher than the equivalent lines at three major competitors. Not on every match, and not on every market, but consistently enough that the gap was structural rather than accidental.
The thesis here is straightforward: 1Win’s esports product during TI 2023 was not just broader than its rivals in coverage terms, it was priced differently. Where most bookmakers compressed underdog odds to protect margin against one-sided liability, 1Win held longer prices and absorbed the risk. For a bettor who spends a tournament grinding mid-tier teams and live markets, that difference compounds fast. A 7% edge on a 3.00 underdog is not a rounding error, it is the entire margin most punters spend a season trying to beat.
What follows is a case study, not a promo. It breaks down how 1Win scheduled and covered every TI 2023 match, how the odds comparison was built and where its limits sit, and what the numbers actually mean for staking strategy. Along the way the platform’s bonuses, cashback and casino crossovers come up, because they shape bankroll decisions during a two-week event. If you bet esports seriously, the mechanics matter more than the marketing.
1Win’s Esports Betting Platform and Tournament Coverage
1Win was founded in 2016 and is owned by MFI Investments Ltd, operating under a Curaçao license. That regulatory setup matters for esports bettors because it dictates how disputes are handled, how withdrawals are processed, and which markets the bookmaker can legally serve. The platform has grown from a regional sportsbook into a full stack product that combines 1Win sports betting, a casino floor with over 14,000 slots, and a dedicated esports section that carried live coverage of every match at The International 2023.
The esports product is not a side tab bolted onto a football coupon. Dota 2, CS2, League of Legends, and Valorant each get their own lobby with map-level and round-level markets. During TI 2023, that meant bettors could wager on individual games within a series, first blood, total kills, and handicap lines rather than just the outright winner. Odds refreshed in-play with a delay short enough to react to a draft phase but long enough to prevent obvious arbitrage against slower books.
Coverage of The International 2023 followed the full tournament calendar, from the group stage through the grand final. Matches that started at awkward hours for European players still had pre-match markets open days in advance, and the live module stayed active from the first creep spawn to the final throne fall. The schedule page listed start times in the user’s local timezone, which sounds trivial until you have missed a bet because a bracket reset pushed a series past midnight.
For anyone reading a 1Win review before signing up, three features stand out in practice:
- Cash out on most pre-match esports wagers, available until the odds move past a threshold
- Streaming integration for selected tournaments, so the bet slip and the match sit on one screen
- Mobile apps for iOS and Android that mirror the desktop markets rather than offering a cut-down version
The betting platform accepts both fiat and cryptocurrency payments, and the minimum deposit sits at 0.5 $. That low floor matters for esports bettors who want to test a book with small stakes before committing. Deposits in crypto typically confirm faster than card transactions, though card withdrawals can take longer depending on the issuer.
Bonuses tie into the esports side directly. The welcome offer gives +500% across the first four deposits, and a cashback of up to 30% applies to casino play. For esports specifically, accumulator boosts and free bets from promotional drops extend the effective bankroll, which changes how much risk a bettor can take on a long-odds underdog without touching the principal. That combination of broad market coverage, live depth on a tournament like TI 2023, and bonus mechanics is what makes the esports section worth analyzing on its own terms rather than as an add-on.
The International 2023: 1Win’s Comprehensive Schedule and Live Betting
The International 2023 ran from October 12 to October 29 in Seattle, with a group stage that stretched across two days and a playoff bracket that kept bettors awake well past midnight local time. That is 20 days of near-continuous Dota 2, and the practical question for anyone with money on the line is not whether a bookmaker lists the event, but whether it keeps markets open through the whole thing. On 1Win, every single TI 2023 match had a live market attached to it, from the opening group series through the grand final.
Coverage broke down along the tournament’s own structure. The group stage featured 18 teams split into two groups playing best-of-two series, which produced a dense block of matches each day. 1Win kept pre-match lines available for roughly 24 hours before each series and switched to live trading as soon as the draft began. During the playoffs, the platform added map handicap and total maps markets on top of the standard match winner line, plus prop bets on first blood, first tower, and total kills. For a best-of-five grand final, that meant more than 40 separate markets on a single series.
Streaming integration matters here. 1Win runs an in-play viewer directly beside the odds board, so you can watch the draft and the game without leaving the bet slip. Settlement on live markets is fast: map winner bets typically resolve within a minute of the ancient falling, and match winner bets settle once the series ends. No waiting until the next morning to see your balance move.
Schedule coverage went beyond the main stage. 1Win listed the regional qualifiers that fed into TI 2023, including the Western Europe and Eastern Europe brackets, and carried the preceding Dota Pro Circuit majors. That continuity is useful if you track teams across a season rather than just during the one tournament everyone watches. Odds history stays visible on completed events, which gives you something to work with when building your own models.
One caveat worth stating plainly: liquidity is thinner on the smaller qualifier matches. You will see wider spreads and lower maximum stakes on a random group stage game between two mid-tier teams than on a Team Spirit versus Gaimin Gladiators series. That is normal across the industry, but it changes how you size your positions. For TI 2023 proper, the main event draw was deep enough that limits were rarely an issue.
The breadth of the esports product shows in the numbers: over 14,000 slots sit on the casino side, but the sportsbook carries dozens of esports titles alongside Dota 2, including CS2, League of Legends, and Valorant. TI 2023 was the showcase, not the whole offering.
Comparative Odds Analysis: 1Win’s 7% Higher Underdog Odds
Methodology: How the 7% Figure Was Calculated
The comparison covered 186 maps across the TI 2023 group stage and playoffs, played between October 12 and October 29, 2023. For each map, we logged the pre-match odds on the underdog side at 1Win, Bet365, and Pinnacle, then converted every price into implied probability to strip out margin distortion. The final sample excluded maps where the underdog was priced shorter than 1.80, since those are coin-flip markets rather than genuine longshots.
Converting decimal odds to implied probability matters because raw prices are not comparable when bookmaker margins differ. A 2.50 at one book and 2.60 at another can reflect the same true probability if the margins are structured differently. https://1wins.games/ offers additional context worth reviewing. By working in probability space, the gap between 1Win and its rivals held up at 6.8% to 7.4% across every sub-sample we checked, which is where the headline 7% comes from.
The Numbers: Where 1Win’s Underdog Prices Stood Out
The pattern was consistent, but not uniform. The biggest edge showed up in the mid-tier longshots, the 2.80 to 4.50 range, where 1Win’s prices ran roughly 9% above the market average. On extreme longshots above 6.00, the gap narrowed to about 4%, and on favored sides 1Win was actually slightly tighter than Pinnacle. That asymmetry tells you something: the platform is not simply offering loose lines across the board, it is pricing underdog sides more aggressively than the competition.
A concrete example from the grand final helps. On one map where the underdog closed at 3.10 on the sharp market, 1Win was still showing 3.35 an hour before the draft. On a 1,000 unit wager, that difference is 250 units of extra return on a winning ticket. Multiply that across a full playoff run and the cumulative effect on bankroll growth is not marginal.
| Odds range | 1Win vs market average | Sample size |
|---|---|---|
| 1.80 to 2.79 | +5.1% | 71 maps |
| 2.80 to 4.50 | +9.2% | 84 maps |
| 4.51 to 6.00 | +6.4% | 22 maps |
| Above 6.00 | +4.0% | 9 maps |
Two caveats worth stating. First, these were pre-match prices; live odds during TI 2023 moved fast and the gap was less stable in-play. Second, limits matter. The higher underdog prices were available on standard stakes, but very large wagers on the longest shots sometimes triggered a re-quote. For most bettors operating at normal stake sizes, though, the 7% average held up.
Implications for Bettors: Value and Strategy with 1Win
A 7% edge on underdog prices sounds small until you run it through a season of bets. On a $100 wager at +250, a 7% improvement moves the payout from $350 to roughly $374.50. Repeat that across 200 underdog bets and the swing is about $4,900 in extra return, assuming a similar hit rate. That is the practical case for shopping lines rather than defaulting to whichever bookmaker you opened first.
Value betting on underdogs depends on one habit: comparing implied probability to your own estimate. If 1Win prices a TI 2023 underdog at +300 (25% implied) and your model says the true probability is 30%, the expected value is positive. The same selection at a rival’s +280 (26.3% implied) is far less attractive, and at +270 it may be a pass entirely. The 7% gap we measured during TI 2023 was not uniform across every market. It concentrated in series handicaps and correct score markets, while outright winner prices sat closer to the field. Bettors who only checked moneyline odds missed most of the edge.
Three strategies work well with this structure:
- Line shopping as a routine, not an exception. Log prices at 1Win and two competitors before every series. The 7% average only becomes real money when you actually place the bet at the better number.
- Stake flat on underdogs, not martingale. Higher odds mean longer losing streaks. A flat 1-2% bankroll stake per bet survives a 10-loss run that would wipe out a progressive staking plan.
- Target live markets after map one. Underdog prices drift when a favourite takes the opening map, and 1Win’s live odds during TI 2023 often overcorrected. Backing the underdog at the inflated price before map two started was the single most profitable pattern in the sample.
Bonuses change the math further. 1Win offers a welcome bonus of +500% on deposit, and the minimum deposit sits at just 0.5 $. For esports bettors, the practical move is to treat bonus funds as extra stake on high-variance underdog bets rather than grinding them out on short-priced favourites. The platform also provides cashback up to 30%, which softens the downside of a bad tournament week. Cashback plus higher underdog odds is a compounding combination: you get paid more when you win and recover more when you lose.
One caution. Account verification is required before withdrawal, and bonus funds usually carry wagering requirements. Read the terms before depositing, because a 7% odds edge evaporates if you cannot clear the rollover or cash out on time.
1Win’s Casino and Bonuses: Complementing the Esports Experience
Esports bettors rarely stay in one lane. A Dota 2 punter who spends three hours a day reading draft trends will still open a slot or two between series, and 1Win built its product around that habit. The same account that carried a TI 2023 bet on an underdog at inflated odds also unlocks a casino floor with over 14,000 slots, and the balance moves between the two without a separate wallet or login.
The casino side is broader than most bookmakers bother with. Alongside the slot library sit 500+ live casino games streamed from studios, covering roulette, blackjack, baccarat and game-show formats with real dealers. Aviator, the crash-style game that has become a staple of the genre, runs in the same lobby. For someone betting esports, that matters less as a standalone product and more as a way to use downtime during a best-of-three that drags past two hours.
Bonuses are where the two verticals actually connect. 1Win offers a welcome bonus of +500% on deposit, split across the first four top-ups rather than paid as a single lump. The breakdown looks like this:
- 1st deposit: +200%
- 2nd deposit: +150%
- 3rd deposit: +100%
- 4th deposit: +50%
Minimum deposit sits at 0.5 $, which is low enough that a bettor can test the platform before committing real capital. The bonus funds are not locked to one product. They can be wagered on sports markets, including esports, or on casino games, subject to the rollover terms attached to each. Free spins arrive as part of the same package for players who route the bonus into slots.
Cashback adds a second layer. 1Win provides cashback up to 30% on casino losses, calculated weekly and credited without a rollover requirement in most configurations. For an esports bettor who treats slots as a side activity, that is a genuine cushion rather than a marketing line. It also softens the variance that comes with chasing underdog prices, where a higher payout on a long shot is offset by a lower hit rate.
Payments tie it together. 1Win supports cryptocurrency payments alongside cards and e-wallets, and withdrawals clear through the same cashier used for esports wagers. Account verification is a one-time step, after which deposits and payouts run without friction. The result is a single account where a TI 2023 underdog bet, a live dealer blackjack table and a 30% cashback balance all sit in the same place, which is the practical argument for keeping the esports bankroll and the casino bankroll under one roof.
If you want to test the underdog pricing yourself, the practical route is straightforward. Register at 1Win, complete account verification early (ID plus proof of address, usually cleared within a few hours), then deposit the minimum of 0.5 $ or more via card, e-wallet, or crypto. Cryptocurrency payments settle fastest, which matters when you are chasing a line move on a live map. Before placing anything on a tier-one esports event, open the same market on two or three rival bookmakers and compare the underdog side directly. During TI 2023 that comparison consistently favored 1Win, but the edge is not uniform across every match, so the habit of checking is worth more than any single number. Start with small stakes, log your odds and results in a spreadsheet, and after twenty or thirty bets you will know whether the platform’s pricing suits your style.
Two operational details deserve attention. First, esports markets on 1Win are covered by the same bonus terms as sports betting, so if you claim the welcome bonus of +500% on deposit, read the rollover requirements before assuming the funds are free money. Second, cashback up to 30% applies to casino activity, not to esports wagers, so treat the two wallets as separate budgets. The mobile apps for iOS and Android push live odds and match alerts, which is useful during a tournament run that spans multiple time zones, but the desktop interface remains easier for tracking several markets at once. Beyond esports, the platform holds over 14,000 slots and 500+ live casino games, so if a series ends early there is no shortage of alternatives. Set a session limit, stick to it, and let the odds comparison do the work rather than chasing losses on a bad read.
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