The specific success rate of CGC 8.5 to HGA 9 crossovers on Venusaur cards is not publicly documented anywhere in the collecting community. Despite the growth of crossover services and the increasing interest in alternative grading companies, no grading service has published concrete data on this particular crossover scenario. This gap in publicly available information reflects a broader reality: HGA crossover success rates remain largely unmeasured, making it impossible to quote a definitive percentage.
What we do know is that general crossover success rates across the industry typically range from 30 to 60 percent depending on which grading companies are involved and the card’s actual condition. However, HGA presents a unique case. Established in 2020, HGA uses proprietary imaging technology with micron-level centering measurement, yet the company has not achieved the widespread collector adoption of older competitors. Without sufficient market data, collectors attempting CGC 8.5 to HGA 9 crossovers on Venusaur cards are essentially entering uncharted territory.
Table of Contents
- Why HGA Crossover Data Remains Scarce
- Understanding the Limitations of HGA’s Market Position
- Comparing Crossover Success Across Different Companies
- Practical Considerations Before Attempting a Crossover
- The Risk of Downgrading in Crossovers
- Venusaur Cards and Grading Market Dynamics
- The Future of Crossover Data and HGA’s Market Evolution
- Conclusion
Why HGA Crossover Data Remains Scarce
HGA’s limited penetration in the secondary market is the primary reason for the absence of crossover success statistics. Most published grading guides and crossover data focus on the established players: PSA, BGS, and CGC. These companies have been around longer and have generated the volume necessary to produce meaningful statistics.
HGA, despite its advanced technology, simply hasn’t achieved comparable market share, which means fewer crossovers are being attempted and fewer results are being documented. The secondary market for HGA slabs remains thin and underdeveloped compared to the robust trading communities around PSA and CGC graded cards. When fewer cards are being crossovered and fewer transactions are occurring, the data needed to calculate success rates simply doesn’t accumulate. A Venusaur card graded CGC 8.5 crossed to HGA might fetch different results depending on the specific print version, centering quality, and surface condition—but without dozens or hundreds of documented examples, collectors can’t identify patterns.

Understanding the Limitations of HGA’s Market Position
HGA’s imaging technology is genuinely advanced, using micron-level measurements that exceed what most collectors can assess with the naked eye. However, advanced technology does not automatically translate to collector preference or secondary market liquidity. HGA grades are perceived as less liquid and less universally accepted by dealers and buyers. This means even if a CGC 8.5 successfully crosses to HGA 9, the resale value and buyer interest may not justify the crossover attempt.
The core limitation here is one of market dynamics, not grading accuracy. A card graded HGA 9 might be objectively better than it was at CGC 8.5, but if fewer collectors are bidding on HGA slabs in the secondary market, the practical value of that upgrade becomes questionable. Venusaur cards, while popular, are not so rare that collectors will accept any grading company—most buyers have preferences, and those preferences strongly favor the established players. Attempting a crossover without understanding the buyer preference landscape can be costly.
Comparing Crossover Success Across Different Companies
When collectors attempt crossovers from CGC to psa or BGS, they often have historical data to reference. Studies and forum discussions document PSA’s cross-grading practices, BGS’s strictness on centering, and how often cards improve versus downgrade. For example, a CGC 8 that crosses to PSA often comes back at a similar grade or drops slightly, with PSA historically being more strict on surface condition. These patterns are well-established because the volume of crossovers is enormous.
HGA crossovers lack this comparative history. A CGC 8.5 Venusaur attempting an HGA 9 would be one data point in a sea of insufficient data. The fact that HGA uses different measuring standards (micron-level centering precision) means the card might actually perform better by HGA’s criteria, but without seeing other similar crossovers, it’s impossible to predict. Some collectors have reported positive experiences with HGA crossovers, while others have found that the secondary market indifference makes the exercise pointless.

Practical Considerations Before Attempting a Crossover
Before spending money to cross a CGC 8.5 Venusaur to HGA, collectors should consider the realistic resale market. Who is actually buying HGA slabs in the secondary market? If the answer is “very few collectors,” then the upgrade from 8.5 to 9 may carry minimal financial benefit. Crossover services typically cost between $15 and $50 per card depending on turnaround time, plus shipping and insurance. If the upside is uncertain, the downside is a definite loss.
A better approach might be to research recent sales of the same Venusaur card in both CGC and HGA grades and compare average selling prices. If HGA 9 copies are selling for significantly more than CGC 8.5 copies—accounting for the natural variation in sales—then a crossover might make financial sense. If prices are comparable or if HGA copies are taking longer to sell, the crossover is likely not worth the investment. This market research has to substitute for the statistical data that isn’t publicly available.
The Risk of Downgrading in Crossovers
Collectors often overlook the risk that a crossover does not result in an upgrade. The possibility exists that your CGC 8.5 Venusaur crosses to HGA and receives a grade of 8 or lower, or potentially even doesn’t receive a numerical grade at all. While HGA’s grading standards might theoretically allow for a 9, the actual assessment by the company’s graders could differ from CGC’s. Surface wear, centering, or corners might be evaluated more harshly than expected.
This downgrade risk is particularly significant when crossing to a less-established company. With PSA and BGS, crossover downgrades are understood and sometimes even expected, so collectors price in that risk. With HGA, the lack of predictability means the downside is harder to quantify. There’s also the psychological cost: learning that your card dropped from an 8.5 to an 8 after spending money on the crossover service is a tangible loss, even if the numerical difference seems small.

Venusaur Cards and Grading Market Dynamics
Venusaur cards vary enormously in value depending on print version, set, and condition. A first edition Venusaur from the base set will have very different crossover dynamics than a newer Venusaur or a promotional version. The more valuable the card, the more likely a collector would consider a crossover attempt to capture an incremental grade improvement.
A base set Venusaur CGC 8.5 might warrant a crossover attempt if the card’s base value is high; a modern Venusaur at 8.5 probably doesn’t. HGA has shown some strength in contemporary card grading, potentially because newer cards appeal to younger collectors who are already comfortable with emerging brands. However, vintage Venusaur cards are more likely to be held by collectors who prefer established grading companies, which further reduces the secondary market for HGA-graded vintage Venusaurs.
The Future of Crossover Data and HGA’s Market Evolution
As HGA continues to operate and if its market adoption increases, more crossover data will eventually emerge. In 2026, we simply don’t have enough crossover volume to establish statistical patterns. This could change within the next few years if HGA continues gaining collector acceptance.
Collectors considering Venusaur crossovers might benefit from waiting to see if better data becomes available, or from experimenting with lower-value cards first to understand HGA’s grading tendencies. The broader lesson is that crossover decisions should always be based on market research and financial analysis, not on assumptions about grading companies. HGA’s technology is legitimate, but technology alone doesn’t create secondary market demand or establish the kind of historical data that makes crossovers predictable.
Conclusion
There is no documented success rate for CGC 8.5 to HGA 9 crossovers on Venusaur cards because this specific crossover scenario has not been measured and published by any grading service or collecting authority. The absence of data reflects HGA’s position as a newer, less widely adopted alternative to PSA and CGC.
Before attempting such a crossover, collectors should research the actual secondary market value of HGA-graded Venusaurs and calculate whether a potential two-point grade improvement would justify the cost and risk. The practical takeaway is simple: conduct your own market research by looking at recent sales of comparable Venusaur cards in both CGC and HGA grades, assess the resale activity in each market, and make a financial decision based on real data rather than speculation. Without published crossover success statistics, your own research becomes the most reliable guide.


