Data format

Every publication, snapshot or delta, is a JSON object of the same shape:

Field	Type	Meaning
type	"snapshot" | "delta"	Which channel kind this came from
events	Race[]	Races. A snapshot holds all of them; a delta holds exactly one
ts	number	Upstream build time of the frame, seconds since epoch
sent_ts	number	Deltas only: when this message was published. now - sent_ts = delivery latency
ready	object	Snapshot only: per-book readiness map, used internally; safe to ignore

Race

A real race from a live snapshot, trimmed to four books and one runner (a real one has 50+ books and every runner):

race.json

{
  "type": "race",
  "key": "lismore|R|6|2026-11-09",
  "sport": "racing",
  "event": {
    "venue": "Lismore",
    "number": 6,
    "type": "R",
    "day": "2026-11-09",
    "start": "2026-11-09T06:15:00Z",
    "name": "WESTPAC RESCUE HELICOPTER SERVICE BENCHMARK 66 HANDICAP",
    "rclass": "BM66",
    "country": "AUS"
  },
  "books": [
    "tab",
    "ladbrokes",
    "betfair",
    "surge"
  ],
  "book_event_ids": {
    "tab": "2026-11-09|R|LSM|6",
    "ladbrokes": "745d6332-332c-4245-81fb-38fbe90f60b4",
    "betfair": "1.265206788"
  },
  "source_rx_ts": {
    "tab": 1794180946.649499,
    "ladbrokes": 1794180946.837214,
    "betfair": 1794180947.263693
  },
  "selections": [
    {
      "key": 2,
      "number": 2,
      "name": "BARELLO",
      "status": "ACTIVE",
      "book_runner_id": "164432",
      "bookie_ids": {
        "tab": "164432",
        "ladbrokes": "87739f4c-022a-43f0-90e4-242f367f6109",
        "betfair": "58569545"
      },
      "odds": {
        "tab": {
          "win": 4.4,
          "place": 2.3,
          "place_open": true,
          "place_count": 2,
          "place_count_src": "book",
          "exp_count": 2,
          "allow_place": true,
          "allow_fo_place": true,
          "silk_url": "https://api.beta.tab.com.au/v1/tab-info-service/racing/silk/ORANGE%2C%20BLACK%20MALTESE%20CROSS%2C%20BLACK%20CAP"
        },
        "ladbrokes": {
          "win": 4.2,
          "place": 2.2,
          "place_count_src": "unknown",
          "place_ladder": {
            "4": 1.25,
            "5": 1.08
          },
          "tote": {
            "win": {
              "18ba60da-abd2-463c-a34a-dc6368377ac8": 4.7
            },
            "place": {
              "18ba60da-abd2-463c-a34a-dc6368377ac8": 1.7
            }
          }
        },
        "betfair": {
          "back": 4.3,
          "lay": 8.8,
          "back_ladder": [
            [
              0,
              4.3,
              4.54
            ],
            [
              1,
              4.2,
              13.24
            ],
            [
              2,
              4.1,
              59.12
            ]
          ],
          "lay_ladder": [
            [
              0,
              8.8,
              3.31
            ],
            [
              1,
              9,
              34.02
            ],
            [
              2,
              10,
              24.88
            ]
          ],
          "traded": [],
          "back_ladder_disp": [
            [
              0,
              4.3,
              4.54
            ],
            [
              1,
              4.2,
              13.24
            ],
            [
              2,
              4.1,
              59.12
            ]
          ],
          "lay_ladder_disp": [
            [
              0,
              8.8,
              3.31
            ],
            [
              1,
              9,
              34.02
            ],
            [
              2,
              10,
              24.88
            ]
          ],
          "back_disp": 4.3,
          "lay_disp": 8.8,
          "place_back": 1.86,
          "place_lay": 6.6,
          "bsp": 4.37,
          "pt": 1794180900501,
          "places": {
            "2": {
              "back": 1.86,
              "lay": 6.6,
              "ltp": null,
              "bsp": 4.02,
              "back_ladder": [
                [
                  0,
                  1.86,
                  146.63
                ],
                [
                  1,
                  1.85,
                  35.29
                ]
              ],
              "lay_ladder": [
                [
                  0,
                  6.6,
                  3.45
                ],
                [
                  1,
                  7,
                  37.06
                ]
              ],
              "traded": [],
              "matched": null
            }
          }
        },
        "surge": {
          "win": 4.2,
          "place": 2.05,
          "place_count_src": "unknown",
          "fixed_market_id_win": 62764030,
          "fixed_market_id_place": 62764021
        }
      }
    }
  ],
  "bf_status": "OPEN",
  "bf_inplay": false,
  "bf_updated": 1794180947.170831,
  "tab_updated": 1794180944.356199,
  "country": "AU",
  "ts": 1794180947.264339
}

Put every book’s win for every runner side by side and you have the portal’s race grid. This is that grid, the portal’s own component, replaying one real race from the feed. The betfair object above becomes the Back and Lay columns:

Casino R1

G Greyhound · AUSJumps 14:19 AEDT

14:02:43 recorded

Pause

Betfair OPEN82 bookmakers priced

Runner	Best	Back	Lay	Rate	−$20Unibet	−$20BetBunker	−$20BetDragon	−$20BearBet	−$20BetAces	−$20PointsBet	−$20HotBet	−$23ColossalBet	−$25BetBlitz	−$20BetFocus	−$20Betr	−$20BetChamps	−$20BetBuzz	−$20BetRight	−$20BetReal	−$20TeamBet	−$20MillennialBet	−$20MintBet	−$20Star Sports	−$20RipperBet	−$20TrueBet	−$20WizBet	−$22ChaseBet	−$20BlondeBet	−$20TopBet	−$23CashCage	−$20Surge	−$20PuntSport	−$20TABtouch	−$20XBet	−$20BetPinnacle	−$20XcelBet	−$20Noisy	−$20BetJet	−$20BetNation	−$20Neds	−$22BetAus	−$20MightyBet	−$20BetExpress	−$20BigBet	−$20YesBet	−$20PulseBet	−$22BetDash	−$20CrownBet	−$25MarantelliBet	−$20BetEstate	−$20BallrBet	−$20BaggyBet	−$20Betit	−$20BetLocal	−$22BetSupreme	−$20BetYouCan	−$20Next2Go	−$20Dafabet	−$20OkeBet	−$20PonyBet	−$22BetLegends	−$20GemBet	−$20PuntX	−$20Betzooka	−$22DonnieBet	−$22FatBet	−$20BossBet	−$20WishBet	−$20EarlyCrow	−$20Knucklebet	−$20Punt123	−$20PlayWest	−$20SwiftBet	−$20StableBet	−$20PremiumBet	−$20TAB	−$20PicnicBet	−$20Upcoz	−$20RiverBet	−$20RealBookie	−$20Rob Waterhouse	−$20ReadyBet	−$20Ladbrokes	−$20PlayUp	−$20Nextbet	−$20123Bet
#1 Denni Norris	5.50	5.50	8.40	65%	5.50	5.50	5.50	5.50	5.50	5.50	5.50	4.80	4.60	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.00	5.50	5.50	4.80	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.00	5.50	5.50	5.50	5.50	5.50	5.00	5.50	4.60	5.50	5.50	5.50	5.50	5.50	5.00	5.50	5.50	5.50	5.50	5.50	5.00	5.50	5.50	5.50	5.00	5.00	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50	5.50
#2 Stoke And Smoke	2.50	2.62	4.00	63%	2.45	2.40	2.35	2.40	2.40	2.40	2.45	2.25	2.05	2.35	2.45	2.40	2.35	2.45	2.40	2.35	2.45	2.35	2.35	2.35	2.45	2.35	2.20	2.45	2.50	2.15	2.45	2.35	2.45	2.40	2.35	2.40	2.45	2.45	2.45	2.45	2.40	2.45	2.45	2.45	2.45	2.45	2.40	2.45	2.05	2.45	2.45	2.45	2.45	2.45	2.40	2.45	2.45	2.45	2.45	2.45	2.40	2.45	2.45	2.45	2.40	2.35	2.45	2.45	2.45	2.45	2.45	2.45	2.45	2.45	2.45	2.50	2.45	2.45	2.45	2.45	2.30	2.40	2.45	2.45	2.45	2.35
#3 Integrity Cookie	4.40	4.80	9.00	49%	4.40	4.20	4.20	4.40	4.40	4.40	4.20	3.80	3.70	4.20	4.40	4.40	4.20	4.40	4.20	3.90	4.40	4.20	4.20	4.20	4.40	4.20	4.00	4.40	4.40	3.80	4.40	4.20	4.40	4.40	4.20	4.40	4.40	4.40	4.40	4.40	4.20	4.40	4.40	4.40	4.40	4.40	4.20	4.40	3.70	4.40	4.40	4.40	4.40	4.40	4.20	4.40	4.40	4.40	4.40	4.40	4.20	4.40	4.40	4.40	4.20	4.00	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.40	4.00	4.40	4.40	4.00	4.00	4.20
#4 Ake's Journey	17	15.5	95	18%	16	16	16	17	16	16	17	13	13	15	16	17	16	15	16	15	16	16	15	16	16	15	14	16	16	13	16	15	16	16	15	17	16	16	16	16	15	16	16	16	16	16	15	16	13	16	16	16	16	16	15	16	16	16	16	16	15	16	16	16	15	14	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	15
#5 Long Bay Blue	9.00	9.00	25	36%	9.00	9.00	8.50	9.00	9.00	9.00	9.00	7.00	7.50	8.50	9.00	9.00	8.50	9.00	9.00	8.50	9.00	8.50	8.50	8.50	9.00	8.50	8.00	9.00	9.00	7.50	9.00	8.50	8.50	9.00	8.50	9.00	9.00	9.00	9.00	9.00	8.50	9.00	9.00	9.00	9.00	9.00	8.50	9.00	7.50	9.00	9.00	9.00	9.00	9.00	8.50	9.00	9.00	9.00	9.00	9.00	8.50	9.00	9.00	9.00	8.50	8.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	9.00	8.50
#6 Joey The Mock	4.60	4.70	9.80	47%	4.60	4.60	4.40	4.60	4.60	4.60	4.60	4.00	3.90	4.40	4.60	4.60	4.40	4.60	4.40	4.40	4.60	4.40	4.40	4.40	4.60	4.40	4.20	4.60	4.60	4.00	4.60	4.40	4.60	4.60	4.40	4.60	4.60	4.60	4.60	4.60	4.40	4.60	4.60	4.60	4.60	4.60	4.40	4.60	3.80	4.60	4.60	4.60	4.60	4.60	4.40	4.60	4.60	4.60	4.60	4.60	4.40	4.60	4.60	4.60	4.40	4.20	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.60	4.40	4.60	4.60	4.60	4.60	4.40
#7 Make A Parade	31	25	200	16%	26	26	26	31	26	26	26	21	21	26	26	26	26	26	21	26	26	26	26	26	26	26	23	26	26	23	26	26	26	26	26	26	26	26	26	26	23	26	26	26	26	26	23	26	21	26	26	26	26	26	23	26	26	26	26	26	23	26	26	26	23	23	26	26	26	26	26	26	26	26	26	26	26	26	26	26	21	26	26	26	26	26
#8 Bundock Bonnie	10	10	46	22%	10	10	10	10	10	10	9.50	8.00	8.50	10	10	10	10	9.50	10	10	10	10	10	10	10	10	9.00	10	10	8.50	10	9.50	9.50	10	9.50	10	10	10	10	10	9.00	10	10	10	10	10	9.00	10	8.00	10	10	10	10	10	9.00	10	10	10	10	10	9.00	10	10	10	9.00	9.00	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	9.50
#9 Magic Sugar					Scratched
#10 Bundock Tommy					Scratched

Recorded from the feed on 26 Oct 2026, 14:02 AEDT: 3 minutes, 138 price changes, played back at 2× speed. It's the same grid you see after you log in.Licensed Australian bookmakers only · ⊘ betting closed · · no price yet. Click any price to open the race once you're logged in.

Field	Meaning
type	Always "race" today
key	Stable race id: venue|code|race number|local day. Use it as your map key
sport	"racing" (sports are coming)
event.venue, event.number	Meeting name and race number
event.type	Code: R thoroughbred, H harness, G greyhound
event.day	Local race day YYYY-MM-DD
event.start	Scheduled jump, ISO 8601 UTC
event.name, event.rclass	Race name and class, when the books publish one
event.country, country	Country (AUS/AU, also NZ and others for international meetings)
books	Book ids that price this race
book_event_ids	Each book’s own id for the race (handy for deep links)
source_rx_ts	Per book: when we last received data from it for this race (epoch s)
bf_status, bf_inplay	Betfair market status (OPEN, SUSPENDED, CLOSED) and in-play flag; null if no Betfair market
bf_updated, tab_updated	Last update time from Betfair / TAB (epoch s)
ts	When this race object was last rebuilt (epoch s)
selections	The runners, see below

Runner (selection)

Field	Meaning
key, number	Runner (saddle cloth / box) number
name	Runner name, as the books print it
status	ACTIVE or SCRATCHED
bookie_ids	Each book’s own id for this runner
odds	Map of book id → prices. A book missing from the map has no price for this runner right now

Prices: fixed-odds books

Most books share these fields. Any of them can be absent; treat absence as “unknown”, not zero.

Field	Meaning
win, place	Fixed win / place price (decimal)
fixed_win_open, fixed_place_open	Whether the market is open for betting. false with no price = not yet / no longer offered
place_count	Number of places paid, when known; place_count_src says where that came from
place_open, allow_place, allow_fo_place	TAB-style place-market flags
place_ladder	Extra-place prices keyed by number of places (e.g. top-4, top-5)
tote	Tote pools where a book shows them: win/place, keyed by pool id
fixed_market_id_win, fixed_market_id_place	The book’s own market ids
silk_url	Jockey silks image, when the book provides one

Prices: Betfair Exchange

Betfair appears as just another book id, betfair, with exchange fields:

Field	Meaning
back, lay	Best back and lay price
back_ladder, lay_ladder	Depth: [level, price, size AUD] triples, best first
back_disp, lay_disp, *_ladder_disp	The same, as Betfair’s website displays them (virtual bets included)
ltp, traded, matched	Last traded price, traded volume ladder and matched total, when available
bsp	Projected Betfair Starting Price
place_back, place_lay, places	Place-market equivalents; places is keyed by number of places
pt	Betfair publish time, epoch milliseconds

Caution

Fields are added as books expose more data. Ignore fields you do not recognise rather than failing on them. Removals or renames will be announced in the Changelog.