Contest design

XPRIZEXPRIZE Los Angeles, CaliforniaPosts: 21
We are considering splitting the contest into two rounds: a demonstration round and a final round.

Demonstration round
  • Following an initial call for proposals, 15-20 semi-finalist teams will be selected to enter the competition and demonstrate their ideas and technologies for coral restoration and survival.
  • Semi-finalists teams will demonstrate their technology/techniques at an identified field location.
  • The teams must demonstrate that their prototype can credibly achieve the minimum requirements in the final round.
  • Teams are judged by an interdisciplinary team of engineers and coral biologists who will choose the five most promising teams to move forward to a final large-scale deployment.

Final round
  • Each of the five finalists will receive a milestone award to support their real-world restoration project in a degraded reef location of their choosing – teams must navigate permitting and follow local regulations.
  • Five finalists have two years to achieve the fastest and largest-scale coral deployment with the highest survival rate of corals to show the judges effective coral restoration at scale.

Please share your feedback below.


  • Victor JongeneelVictor Jongeneel Netherlands AntillesPosts: 4
    I think that additional thought should be given to the process involved in getting from initial seeds (small pieces of “corals of opportunity”, gametes harvested during spawning events) to a substantially restored reef, and how each of the steps in the process should be incorporated in the design of the contest and the scoring of the competing teams. Consider the following:
    1. How do you get from initial seeds to a founding population large enough to restore a hectare of reef? The answers will be very different for strategies based on sexual reproduction from gametes, which is currently a lengthy and inefficient process, and asexual nursery-based growth and fragmentation, which can be very efficient for some coral species but not others, and can result in limited genetic diversity. X-Prize guidelines should spell out how much time competitors will have to generate their founding populations, and whether the timing and efficiency of the process will be amongst the scoring criteria. They should also specify whether this will be part of the “demonstration round” only, or also of the final round. In any case, growing enough corals to restore a hectare of reef is going to take a significant amount of time, no matter what the resources are that the competitors can draw on.
    2. Diversity of species and genetic diversity within a species have both been mentioned as scoring criteria. I assume that this will apply to the diversity of the nursery-grown founding population as well as the diversity of the fully restored reef, which are quite distinct metrics. There are many examples of reefs that were restored from a limited founding population, which was then able to recruit other species or genets by providing a favorable environment for larvae to settle. Careful consideration should be given to not being too prescriptive about the diversity of the founding populations, although this could be incorporated into the scoring criteria.
    3. As already mentioned by others, the choice of outplanting sites will have an oversized influence on the characteristics of the restored reefs. Sites that have a degraded existing coral cover are likely to be easier to restore than those without any remaining live corals. Benthic covers of sand, coral rubble, or rocks will require quite different approaches to restoration, by providing very different substrates for outplanting techniques. Sites close to heathy reefs may repopulate more easily. Those affected by adverse environmental conditions will be penalized. If the candidates are solely responsible for picking outplanting sites, it will be very difficult to apply consistent scoring criteria. I would suggest that criteria for choosing outplanting sites, and their influence on scoring metrics, be spelled out in some detail in the X-Prize guidelines. It may even be necessary to include controls managed by the X-Prize and located next to the competitor outplanting sites to provide some level of normalization. The alternative may be for the X-Prize to pick a limited number of sites on which all competitors would have to demo their techniques.
    I will return with more detailed comments targeted to the minimum requirements and the scoring criteria.
  • margaretmillermargaretmiller Miami FLPosts: 3
    As I understand this description, 15-20 teams would gather in a single field location for a demonstration. The provenance questions make this particularly difficult: what coral are they all going to use and will this demo event be scheduled during a spawning event? (Or is this intended to be a coral-less demo?). I also understand that this section of the competition has to be completely self-funded . . . . this would seem to exclude many potential competitors (but I guess that is the premise of prize-based competitions).
    For the final round: will there be criteria for ‘degraded reef location’? This choice of location clearly had a very strong influence on the outcome, including stochastic factors such as weather/storms, vandalism, permitting, etc
  • mattmulrennanmattmulrennan Los AngelesPosts: 4 mod
    @margaretmiller Thanks for the comment. We are looking at ways to support the semi-finalist teams to do prototyping and travel for the demo round, as always this will depend on budget and our ability to fundraise. This will likely be a wet test of the technologies, and depending on the logistics and stipulations of the location, this could indeed be a coral-less exhibition. During this round the teams will have to provide details to judges on where, how, and what they plan to restore and convince judges they have the technologies and capabilities to pull off large-scale restoration. For the degraded reef locations - we are seeking a percentage change in conditions and indeed would like to set a cutoff for what is degraded. Any thoughts?
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