Hi Mikey!

Final Split Pace Calculator

$$p_n = \frac{M \cdot P - \sum_{i=1}^{n-1} (p_i \cdot m_i)}{M - \sum_{i=1}^{n-1} m_i}$$
\(p_n\) is the required pace for the final split
\(M\) is the total distance
\(P\) is the target overall pace
\(n\) is the total number of splits
\(p_i\) is the pace of the \(i\)th split
\(m_i\) is the distance of the \(i\)th split