SimpleFunctions

Barron Mamiya · KXSURFCOMPETITION-26TAHI

Barron Mamiya is priced at 25¢ on Kalshi. Current book: 13¢ bid, 25¢ ask, 12¢ spread. This outcome ranks #2 of 16 inside KXSURFCOMPETITION-26TAHI.

Price history

25¢ current

+24¢
0¢10¢20¢
Aug 8, 2026Aug 9, 2026

Contract brief

If Barron Mamiya wins the 2026 Outerknown Tahiti Pro surfing competition, then the market resolves to Yes.

Outcome

Barron Mamiya

Rank

#2 of 16

Leader

Kauli Vaast 24¢

Range

1¢-24¢

Family volume

$24K

Identifier

KXSURFCOMPETITION-26TAHI-BMAM

Aug 9, 2026, 10:08 PM UTC · 15m ago

Implied probability

25¢
Latest venue quote
Aug 9, 2026, 10:08 PM UTC · 15m ago

Bid

13¢

Ask

25¢

Spread

12¢

24h volume

$78

Family rank

#2 of 16

16 outcomes · KXSURFCOMPETITION-26TAHI

Closes

Feb 15, 2027

Family volume

$24K

Orderbook snapshot

13 / 25¢

Kalshi
12¢ spread
BidSize
100¢1.0K
13¢178
12¢2
6¢1.2K
AskSize
25¢22
26¢1.7K
27¢1.0K
41¢140
46¢2

Contract terms

What resolves this market.

YES condition

If Barron Mamiya wins the 2026 Outerknown Tahiti Pro surfing competition, then the market resolves to Yes.

Venue

Kalshi

Closes

Feb 15, 2027

Identifier

KXSURFCOMPETITION-26TAHI-BMAM

SF Signal
SF Index
1735.09
Regime
neutral

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

1735.1%

IY (No)

21.4%

Adj IY

1735%

CRI

9

RV

159827%

VR

38.63

Regime

neutral

Score

0.5

Full indicator table

1735.1%
21.4%
Adj IY
1735%
9
RV
159827%
VR
38.63
IAR
0.5/h
Overround
-0.2%

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.