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PolymarketMarket Grades by Belief SystemsBeta

Will Xavier Becerra win the California Governor Election in 2026?

Belief Systems Market Grade

Dnear resolution

Weak market quality

As of Oct 23, 2026 · D since Oct 23, 2026Measured from Sep 23 to Oct 23, 2026

Near its end, so the grade is frozen and can’t rise.

FLiquidity · Very weakA-Integrity · Very strongUpdated daily

Grade limits apply: C+ from the weaker of liquidity and integrity, B+ from trading evidence.

This grade describes the market over its last graded period, not today.

Rates how well this market trades, from A+ (best) to F: how much you can trade near the price, and how many different traders take part. Not a forecast of the outcome.

Market status
Near resolution
Under review
No
Data
Current · 99% observed
Trading activity
Moderate trading activity · grade limit B+

Liquidity and integrity

The two measures behind the grade.

F

Liquidity

Very weak

How easily the market trades: the depth of buy and sell quotes, the cost of a typical trade, and how steadily trading happens.

F since Oct 23, 2026 · steady

A-

Integrity

Very strong

How broad and orderly trading is: how many different traders take part, and how often quotes are missing, one-sided, or crossed.

It screens for concentrated trading. It is not proof that a market can’t be manipulated, since many accounts can belong to one trader.

A- since Oct 23, 2026 · steady

Both are recalculated daily over the same 30-day period. The overall grade moves more slowly: a change has to hold before it counts.

Grade changes

Every change stays on the record, including corrected ones.

Oct 22, 2026
Grade frozen

Reason: approaching resolution · Confirmed

Why it changed

The market entered the period near resolution, when the grade is frozen under the methodology.

Dates and identifier
Review start not recorded · data through Oct 22, 2026Took effect Oct 22, 2026 · published Oct 22, 2026Action identifier for API lookup: polymarket:0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3:1:6
Oct 10, 2026
Review closed

Reason: overall measured quality · Confirmed

Why it changed

The recorded trigger was a change in the combined liquidity and integrity assessment.

Dates and identifier
Review began Oct 9, 2026 · data through Oct 10, 2026Took effect Oct 10, 2026 · published Oct 10, 2026Action identifier for API lookup: polymarket:0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3:1:5
Oct 10, 2026
Upgrade

Reason: overall measured quality · Confirmed

Why it changed

The recorded trigger was a change in the combined liquidity and integrity assessment.

Dates and identifier
Review began Oct 9, 2026 · data through Oct 10, 2026Took effect Oct 10, 2026 · published Oct 10, 2026Action identifier for API lookup: polymarket:0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3:1:4
Oct 9, 2026
Review opened

Reason: overall measured quality · Open

Why it changed

The recorded trigger was a change in the combined liquidity and integrity assessment. A review does not by itself change the grade.

Dates and identifier
Review began Oct 9, 2026 · data through Oct 9, 2026Took effect Oct 9, 2026 · published Oct 9, 2026Action identifier for API lookup: polymarket:0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3:1:3
Sep 16, 2026
Record opened

Reason: a change in market status · Confirmed

Details

The market’s grading status changed under the methodology’s lifecycle rules.

Dates and identifier
Review start not recorded · data through Sep 16, 2026Took effect Sep 16, 2026 · published Sep 16, 2026Action identifier for API lookup: polymarket:0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3:1:1
Details and citationShow

The grade

Market status
Near resolutionNear its end, so the grade is frozen.
Under review
No
Data status
CurrentEnough data was observed.
Grade limits
C+ from weaker component (in force)B+ from trading evidence (in force)
Trading activity
Moderate trading activity (T1)Trading activity met the middle evidence threshold over the observation period. A B+ grade limit from trading evidence is on this record.
Grade since
Oct 23, 2026

The data

Data observed
Full · 99%
Days observed
30 of 30 needed
Measured over
Sep 23 to Oct 23, 2026
First observed
Aug 17, 2026
Last complete day
Oct 23, 2026
Data check codes
None

Identifiers and versions

Record ID
polymarket:0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3:1A change to what the market question means starts a new record.
Venue
Polymarket
Market ID
0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3
Correction
Original
Calculation status
candidate
Last confirmed change
View it in grade changes
Methodology version
mg-1.2
Calibration version
mg-cal-1.0

Cite this grade

Market Grades by Belief Systems: Will Xavier Becerra win the California Governor Election in 2026? Market Grade D (near resolution).

Episode:
polymarket:0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3:1
Flags:
none
Lifecycle:
Near resolution
Data status:
Current
Under review:
No
Trading activity:
Moderate trading activity (T1) · grade limits C+ (weaker component), B+ (trading evidence)
Book coverage:
full · 99%
As of:
2026-10-23 · window 2026-09-23 to 2026-10-23
Versions:
mg-1.2 / mg-cal-1.0

https://beliefsystems.xyz/grades/polymarket/0xa5d79e71e66c9fe122f8b8b3ca6ab7a0e3048bd8508f130746944e92ed79ddf3

How grades are calculated ↗

Market Grades are in beta. Grades are live, and the methodology is being validated in public on a published schedule. Validation roadmap ↗

Disclosures

Market Grades measure market quality – liquidity, integrity – not the likelihood of any outcome.

Market Grades are unsolicited: no graded party requests, pays for, or previews a grade. Belief Systems holds no positions in graded markets.

A grade is not a recommendation to buy, sell, or hold any position, and is not a substitute for a user's own assessment.