Category: RotoValue

Auction Weekend Recap

This past weekend we had the auctions for my two long-time leagues, the Park Slope Rotisserie League, a traditional 4×4 AL-only league, and the Ezra Stiles Rotisserie Association, a 4×4 NL league. This is the 25th season of the ESRA NL, of which I was a founding member, and the 26th year of the Park… Continue reading Auction Weekend Recap

Going 9 AL Recap

So I did a draft for an AL league sponsored by Going 9 Baseball, with 12 teams, so it’s a deep league. We drafted 25 players each, and it took a little over 3 hours to complete online. After doing a mock draft in a shallow mixed league a few weeks earlier, I had hoped to… Continue reading Going 9 AL Recap

Playing Time Projection

A big unknown in fantasy projections is playing time. Indeed projecting playing time well may be as, or even more, important, to fantasy owners than projecting a player’s rate statistics. The playing time in RotoValue projections is the result of a three-stage process. First, a basic projection algorithm uses a player’s age and historical performance… Continue reading Playing Time Projection

Updating Projections

I’ve updated projections at RotoValue, incorporating the most recent releases of two outside systems, Steamer/Razzball and CAIRO. In addition, I’ve updated my own RotoValue projections with playing time adjustments based on known injuries. For RotoValue, I scan injury reports looking for players known to miss time. Based on that report, I make an estimate of… Continue reading Updating Projections

RotoValue Prices – a WAR For Fantasy Sports

So how are RotoValue auction prices computed anyway? One way to think of them is as a sort of WAR for fantasy sports. Tom Tango has done a great job explaining WAR, emphasizing that it is a framework, and thus you can have many different implementations. Ultimately that’s what RotoValue is – an implementation of a model… Continue reading RotoValue Prices – a WAR For Fantasy Sports

An Auction Guy Gets Drafted

I’ve blogged about participating in a fantasy baseball mock draft last weekend, but I have a confession: I’d never before done a straight baseball draft. I’ve been playing fantasy sports for over two decades, and I’ve done fantasy football drafts often. Once we did a fantasy basketball draft when the delayed season start made it impossible… Continue reading An Auction Guy Gets Drafted

Mock Draft Reflections

Today I did a mock draft online, which was quite an experience. First, I’d like to thank Mark Healy of http://www.going9baseball.com/ for inviting me to participate. It was fast and fun – we used http://www.mockdraftcentral.com to hold it, and it was configured to allow at most 60 seconds per pick. Healy hosts a weekly radio show on SiriusXMFantasy, and he… Continue reading Mock Draft Reflections

Crowdsourcing the Future!

Consensus forecasts, an averaging of forecasts from different sources, have done quite well in studies comparing forecast values with actual ones, so it makes sense to have a consensus of the projection sources RotoValue has for baseball. I’ve done an initial averaging of four sources: CAIRO – from S B of the Replacement Level Yankees Weblog. Marcel – the… Continue reading Crowdsourcing the Future!