Markets & depth
Polymarket + Kalshi order books, both sides
Live
NBA Finals
NYK0.612
SAS0.391NHL Cup Final
EDM0.547
FLA0.458MLB
NYY0.582
LAD0.421WNBA
NYL0.634
LVA0.370MLB
CHC0.498
ATL0.505
NYK0.612SAS0.391NHL Cup FinalEDM0.547FLA0.458MLBNYY0.582LAD0.421WNBANYL0.634LVA0.370MLBCHC0.498ATL0.505Boxing prediction-market data, on the record.
ScoreTape records the full order book of every Polymarket and Kalshi boxing market — fight winners, method, and rounds — both sides, every level, tick by tick, and captures each market's settled outcome on close. Served over one REST API.
Free tier, no card — every league and endpoint included.
ScoreTape
Jun 12 · liveNBAMLBNHLWNBAEPL
MoneylineSpreadTotalProps
Settlement-verifiedTimeTeamPolymarketKalshiDKFDBest
20:30Knicks0.612▲0.609-135-1380.612
Knicks0.612▲0.609-135-1380.612Spurs0.391▼0.394+115+1180.39420:00Oilers0.5470.551-120-1180.551
Oilers0.5470.551-120-1180.551Panthers0.458▲0.452+102+1000.45819:05Yankees0.582▲0.578-142-1400.582
Yankees0.582▲0.578-142-1400.582Dodgers0.4210.426+120+1220.42619:00Liberty0.6340.630-170-1720.634
Liberty0.6340.630-170-1720.634Aces0.370▼0.374+145+1480.374369,412 markets on tapeorder books streaming
369,000 markets across 13 leagues — every one resolved to its real-world game
NFL
NBA
MLB
NHL
WNBA
UFC
Premier League
Champions League
La LigaCFBCFBCBBCBBATPTennis2
venues on tape
every Polymarket & Kalshi market, both sides of the book
Settlement
every market
the winning outcome captured on close
Forward
captured tape
depth archived as it traded — cannot be backfilled
Title fights
on the record
main events recorded tick by tick
The product
One Boxing game, one document
Every feed knows the same Boxing game by a different name — a slug on Polymarket, an event id at ESPN, a ticker on the exchange. ScoreTape resolves them to one record and answers a single request with everything that game was.
PolymarketOrder-book depth — every level, both sides, tick by tick.
KalshiYes/no books and settlement for every sports market.
Settlement
Each market's own resolution — the winning outcome captured on close.
GET /v1/games/boxing-usyk-dubois-2026-05-30200 · matched
{
"market": { "fight": "Usyk vs Dubois", "kind": "fight_winner" },
"depth": { "levels": 14, "both_sides": true },
"settlement": { "winner": "Usyk", "resolved": true }
}
Forward-captured depth and settlement-labelled — the fight market and its settled outcome on one bout.
Market depth
Backtest against the book, not the headline price
A fill has a cost the last trade never shows. ScoreTape records the live order book for sports markets on Polymarket and Kalshi, so your strategy sizes against the liquidity that actually existed at that moment.
- Every level, both sides — not a last price or a mid nobody could trade
- Forward-captured continuously; order-book history cannot be backfilled
- Replayable: snapshot time-series per outcome token via one endpoint
Knicks
SpursBest bid
0.612
Mid
0.6135
Best ask
0.615
Spread
0.003
Cumulative depthBidsAsks
Imbalance
54 / 46
Coverage
Boxing coverage
Boxing carries order-book depth and settlement on every Polymarket and Kalshi market — fight winner, method, and rounds — recorded tick by tick and labelled by what settled. There is no external sportsbook-odds or per-bout results layer here.
Fight winner
Binary markets recorded tick by tick
Method & rounds
Derived markets on the tape
Title fights
Main events on the record
Settlement
Winning outcome captured on close
Forward tape
Depth archived as it traded
Why ScoreTape
The best source of Boxing prediction-market data
Sports odds APIs give you a fight line at best, and exchange APIs hand you a raw live book with nothing archived. Only ScoreTape records every Polymarket and Kalshi boxing market as forward-captured order-book depth and labels it by the market's own settlement.
| Capability | ScoreTapethis API | Sports odds APIsthe-odds-api, SportsDataIO | Exchange APIsPolymarket / Kalshi direct |
|---|---|---|---|
| Prediction-market order-book depth (both sides, every level)Exchange APIs expose a raw live book — ScoreTape records every level, both sides, tick by tick. | |||
| Forward-captured as a queryable history, not just liveDepth cannot be backfilled once the game is over — the archive only exists because it was recorded live. | |||
| Settlement captured for every market (winner on close)Each market's own resolution is recorded so the depth archive is labelled win/loss, end to end. | |||
| One request returns the whole game as one documentMarkets, depth, settlement — and odds, result and injuries where the sport carries them — in a single record. |
The bottom line. For boxing prediction-market data, ScoreTape is the only API that records every Polymarket and Kalshi boxing market as forward-captured order-book depth, both sides and every level, labelled win/loss by the market's own settlement.
✓ full · – partial · ✕ not offered. Comparison reflects the standard data products of each category; individual vendors vary. ScoreTape is independent and not affiliated with any exchange, sportsbook, or league.
Quickstart
From key to joined Boxing data in minutes
Every boxing endpoint is open on the free tier — pull a fight market and read the depth and its settlement.
- 01
Grab a key
Free tier, no card — every league and endpoint is open from day one.
- 02
Pull a Boxing game
One request returns the joined document: markets, odds, result.
- 03
Walk the season
Page every matched game with cursor pagination and reconcile against settlement.
boxing.sh
# One Boxing game, one document
$ GAME="boxing-usyk-dubois-2026-05-30"
$ curl -s -H "X-API-Key: $KEY" \
"https://api.scoretape.com/v1/games/$GAME"
# Browse this sport's markets
$ curl -s -H "X-API-Key: $KEY" \
"https://api.scoretape.com/v1/boxing/games?matched=true"Clean JSON·Cursor pagination·Per-plan rate limits
Why joined data
What it takes to model the boxing prediction markets
A fight market is a clean binary that can swing on a weigh-in, a late pull-out, or a single round. Boxing prediction-market data is only useful as the book behind the price — recorded as it traded and labelled by what settled.
01
Depth is the truth
In a two-outcome fight market, the book is the whole story. ScoreTape records the live boxing order book on Polymarket and Kalshi — both sides, every level, tick by tick — so a backtest fills against the liquidity that actually existed into the walk-out, not a last price. Depth is forward-captured and cannot be backfilled.
02
Settlement on every market
Each boxing market's own resolution — the winning outcome on close — is captured, so the depth archive is labelled win/loss end to end. You can backtest a price against what actually settled, fight after fight.
03
An honest scope
ESPN does not retain a structured pre-fight odds line or a per-bout results feed for boxing the way it does for the team sports, so ScoreTape's boxing coverage is the prediction-market book and its settlement — not a sportsbook-odds or external-result join. For combat sports with a full result join, see the UFC coverage.
Pricing
Pick your window
Every plan gets every league and every endpoint. You're choosing how far back the tape rolls — and how hard you can pull on it.
Free
$0free, no card
Seven days of tape to prove it's real.
- 7-day Kalshi & Polymarket tape
- 7-day scores & sportsbook odds
- All leagues, all endpoints
- Read-only API, 1 req/sec
Pro
Most popular$29per month
The modeler's window — a month of tape.
- 30-day Kalshi & Polymarket tape
- 90 days of scores & sportsbook odds
- Real-time injury webhooks (~60s)
- 25 req/sec, 1,000 req/min
- Settlement-verified winners
Scale
$79per month
Two months of tape, a full year of results.
- Everything in Pro
- 60-day Kalshi & Polymarket tape
- Full year of scores & sportsbook odds
- Live order-book snapshots
- 50 req/sec, 3,000 req/min
Enterprise
$200per month
Dedicated lanes for systematic desks.
- Everything in Scale
- Unlimited tape history
- Full sports archive — odds to 1999
- Dedicated capacity, 100 req/sec
- Priority support
FAQ
Common questions
The short version of what people ask before they pull their first game document.
Every Polymarket and Kalshi boxing market — fight winner, method, and round markets — recorded with full order-book depth (both sides, every level, tick by tick) and each market's settled outcome captured on close. Coverage is the prediction-market book and its settlement, not a sportsbook-odds or external-results join.
Something else? Read the docs or ask us directly.
Stop joining sports data by hand
Markets, odds, results, and injuries — already resolved to the same game. The free tier opens every league and endpoint, no card.