Overview
- Middlesex, who reached 109-1 by stumps Sunday, lead Northamptonshire by 41 after first-innings scores of 341 and 409.
- James Sales finished with a career-best 164 that pushed Northamptonshire to 409 and a 68-run lead.
- Nathan McSweeney made 107 for his second consecutive County Championship hundred, building a 164-run stand with Sales after their rescue work the previous day.
- Liam Guthrie blasted 51 from 49 balls in a ninth-wicket stand of 74 that stretched the total and lifted the home side.
- Ben Sanderson took 5-62 to end Middlesex at 341 after a 140-run stand between Zafar Gohar and Joe Cracknell.