NegativeEV
I built a tool to help people see how bad their bets are
Details
- External ID
- 49113999
- Source
- HN
- Company
- —
- Product
- NegativeEV
- Website domain
- negativeev.com
- Launched
- July 30, 2026
- Cohort
- —
- Upvotes
- 6
- Upvotes percentile
- 0.2873357228195938
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Enrichment
- Theme
- Vertical
- Fintech
- Function
- Analytics & BI
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- betting analysis tool
- Manually corrected
- False
Could you build this?
Partial While the web app, OCR/text input, and expected value comparison UI are straightforward, running accurate thousands of play-by-play full-game sports simulations requires calibrated quantitative models and proprietary historical sports data.
What it would actually take: The architecture requires an OCR service (e.g., GPT-4o or Tesseract) to parse bet slips, coupled with a simulation engine built in Python/C++ running Monte Carlo game state transitions for major sports leagues. The hardest part is sourcing licensed play-by-play event feeds and training realistic, calibrated team/player predictive models that accurately simulate game distributions rather than naive stat lookups.
Discussion
5 comments analyzed.
Concerns raised: Tool's purpose unclear to casual users without domain knowledge, Heavy use of unexplained abbreviations and jargon, Unclear target audience and positioning on front page, Prediction accuracy is inherently limited in sports betting
Feature requests: Clearer explanation of what the tool does upfront, Better onboarding for non-heavy users/casuals, Reduce unexplained abbreviations in examples and documentation
Competitors
Other products that read as similar to this one — 215 launches clear the similarity bar, closest 8 shown.
Attention rank: #142 of 216 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 274 days after the earliest competitor.
- A prediction market where you can bet against my goals · hn · 2025-12-03 · 7 upvotes · similarity 0.50
- Kasspian · hn · 2026-06-11 · 5 upvotes · similarity 0.48
- jeval · github · 2026-09-20 · 17 upvotes · similarity 0.45
- I built a 2-min quiz that shows you how bad you are at estimating · hn · 2026-04-06 · 20 upvotes · similarity 0.43
- LogosGuard: The risk management software for enterprises adopting AI · yc · 2025-11-11 · 231 upvotes · similarity 0.43
- VoteSprint · hn · 2025-12-27 · 5 upvotes · similarity 0.43
- Paranoia · hn · 2026-08-04 · 6 upvotes · similarity 0.42
- An API that catches what your LLM confidently got wrong · hn · 2026-04-09 · 5 upvotes · similarity 0.42
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a analytics & bi tool for Legal yet.