🎮Esports/POLYMARKET/May 15, 2026
polymarket market

LoL: Ultra Prime vs Oh My God (BO3) - LPL Group Nirvana

PRISM
63.0%
MARKET (PUBLISH)
71.5%
MARKET (SETTLED)
100%
MOVE
+29pp

PRISM detected 8.5pp overconfidence — market held

PRISM estimated 63% against the market's 72%. This time, the market was right — a calibration data point.

PRISM MISSED-100% return
ISSUED FORECASTMay 15, 2026 at 10:05 AM
MODERATE · OVERPRICED+8.5ppPRISM 63% · Market 72%
PRISM
63.0%
VS
MARKET
71.5%
EDGE DETECTED8.5pp
WEAK
MODERATE
STRONG
EXTREME
OUTCOME
YES
FORECAST
MODERATE
DIRECTION
OVERPRICED
CONFIDENCE
MEDIUM
ACCURACY EDGE
-56
PUBLISHED
May 15, 2026
VIEW LIVE PRISM FORECASTSEdge scoring updated every 2h
1

What happened

This market resolved YES on May 15, 2026. The market's pricing turned out to be more accurate than PRISM's assessment.

Forecast Tape

2 events
  1. May 15, 10:05 AMPUBLISHED

    Prism 63% vs market 72% — MODERATE OVERPRICED

  2. May 15, 2:22 PMRESOLVED YES

    Resolved YES. Market was closer than Prism on this call.

2

What the market believed

MARKET PRICE · AT FORECAST TIME
71.5%

The market was pricing this event at 71.5% probability when PRISM generated its forecast. PRISM assessed this was too high — the market was overconfident.

3

What PRISM believed

PRISM PROBABILITY
63.0%
EDGE DETECTED
8.5pp
FORECAST
MODERATE OVERPRICED
Confidence
MEDIUM
Kelly Reference
N/A
PRISM Sizing (¼ Kelly · cap 5%)
N/A
PRISM REASONING
  • Fundamental analysis indicates Ultra Prime is modestly stronger than a winless Oh My God in this BO3
  • Cancellation, delay, or unusual forfeit rules slightly reduce effective win probability below pure team strength
FACTORS FOR
  • +Ultra Prime has better series and game records than OMG.
  • +BO3 format reduces variance and favors the stronger side.
FACTORS AGAINST
  • Both teams are lower-tier with poor records, increasing upset risk.
  • Non-play, long delay, or certain forfeits resolve to 50-50.
RESOLUTION PATHS MODELED
Ultra Prime wins the BO3 through normal completed gameplay60%
Match starts and Ultra Prime wins via opponent disqualification3%
Evidence 50%
SOURCES (7)
last day
  • LoL: Ultra Prime vs Oh My God (BO3) - LPL Group Nirvana ...polymarket.com

    This market refers to the LoL match between Ultra Prime and Oh My God in the LPL Group Nirvana, initially scheduled for May 15 at 5:00AM ET.

    May 15Open →
  • LoL: LNG Esports vs LGD Gaming (BO3) - LPL Group Nirvana Odds ...polymarket.com

    This market refers to the LoL match between LNG Esports and LGD Gaming in the LPL Group Nirvana, initially scheduled for May 14 at 5:00AM ET.

    May 14Open →
  • Ultra Prime vs Oh My God | LPL - Sheep Esportssheepesports.com

    Upcoming: Ultra Prime vs Oh My God in LPL (Bo3). Pre-match analysis, head-to-head stats, and team overviews on Sheep Esports.

    May 14Open →
  • Bet your skins on the match Ultra Prime vs Oh My God | LPL 2026 ...bets4.net

    According to users, the probability of Oh My God winning before the start of the match is 58%. In addition, other bets on League of Legends are available on the ...

    May 14Open →
  • LoL: ThunderTalk Gaming vs EDward Gaming (BO3) - Polymarketpolymarket.com

    This market refers to the LoL match between ThunderTalk Gaming and EDward Gaming in the LPL Group Nirvana, initially scheduled for May 16 at 5:00AM ET.

    May 15Open →
  • Ultra Prime vs Oh My God no LPL 2026 Split 2bo3.gg

    Visão geral completa do Ultra Prime vs Oh My God no LPL 2026 Split 2. Conheça as informações e estatísticas das partidas de League of Legends e esteja ...

    May 15Open →
  • Ultra Prime vs Oh My God | LPLsheepesports.com

    Upcoming: Ultra Prime vs Oh My God in LPL (Bo3). Pre-match analysis, head-to-head stats, and team overviews on Sheep Esports.

    May 14Open →

PRISM RETRIEVES EVIDENCE FROM A CURATED LIST OF PRIMARY WIRES + OFFICIAL SOURCES

4

Why the gap existed

Prism's 8.5% edge call was wrong — market was right

CALIBRATION SCORECARD
PRISM ACCURACY
0.137
MARKET ACCURACY
0.081
EDGE
-55.7
Brier edge
The market's probability estimate was more accurate than PRISM's on this call.
5

How this forecast played out

1.PRISM analyzed LoL: Ultra Prime vs Oh My God (BO3) - LPL Group Nirvana, classifying it as overpriced at 71.5%.
2.Forecast classification: MODERATE OVERPRICED — PRISM estimate 63.0% vs market 71.5%.
3.Kelly reference at forecast time: —% (¼ Kelly, capped at 5%; mathematical reference only — not a position recommendation).
4.Outcome: resolved YES.

Get live PRISM forecasts for Kalshi + Polymarket.

Edge scores, Kelly references, confidence levels, and resolution paths — updated every 2 hours, before the market corrects.

VIEW LIVE FORECASTS
PRISM: v0.9.125-fast-ledger-floor·Forecasted: May 15, 2026·Resolved: May 15, 2026·polymarket
For informational purposes only. Not financial advice. EdgeCal provides PRISM-generated market analysis and does not execute trades, manage funds, or guarantee returns. Past performance does not indicate future results.