tennis_prob

Calculates the probability that player $i$ wins over player $j$ for match at time $t+1$ using the WElo or Elo rates at time $t$. Formally:
$$\hat{p}_{i,j}(t+1) = \frac{1}{1+10^{\left(E_j(t)-E_i(t)\right)/400}},$$
where $E_{i}(t)$ and $E_j(t)$ are the WElo or Elo rates at time $t$.

Estimates the standard and weighted Elo (WElo, Angelini et al., 2022 <doi:10.1016/j.ejor.2021.04.011>) rates. The current version provides Elo and WElo rates for tennis, according to different systems of weights (games or sets) and scale factors (constant, proportional to the number of matches, with more weight on Grand Slam matches or matches played on a specific surface). Moreover, the package gives the possibility of estimating the (bootstrap) standard errors for the rates. Finally, the package includes betting functions that automatically select the matches on which place a bet.

Vincenzo Candila

welo

Weighted and Standard Elo Rates

tennis_prob function

<dl><dt>i</dt>
<dd>WElo or Elo rates for player $i$</dd>
<dt>j</dt>
<dd>WElo or Elo rates for player $j$</dd></dl>

Arguments

Probability of winning — tennis_prob

<dl>

<dt>i</dt>
<dd>WElo or Elo rates for player $i$</dd>


<dt>j</dt>
<dd>WElo or Elo rates for player $j$</dd>

</dl>

tennis_prob: Probability of winning

Description

Usage

Value

Arguments

Examples