How this instrument works
The follow-on is a captain's option in two-innings cricket: if the side batting first builds a big enough lead after the first innings, it can require the opposition to bat again immediately rather than the leading side batting a second time. Law 14.1 of the Laws of Cricket sets the minimum lead required, and — a detail many casual followers miss — that minimum is not a single fixed number. It scales with how long the match is scheduled to run: 200 runs in a match of five or more days (the standard for Test cricket), 150 runs in a three- or four-day match, 100 runs in a two-day match, and 75 runs in a one-day match.
The logic behind the sliding scale is time. A Test match has five days to find a result, so the Laws set a high bar (200) before a captain can gamble on forcing the follow-on — enforcing it and failing to bowl the opposition out twice can hand the initiative straight back. A one-day match has almost no time to spare, so the bar drops all the way to 75, because the alternative (batting again from scratch) may simply not fit in the time remaining.
Enforcing the follow-on is entirely the leading captain's choice, not an automatic consequence of reaching the threshold — a team that qualifies is free to bat again anyway, and often does, particularly late in a match when its bowlers are tired or the pitch has started to wear in ways that favour bowling last. The follow-on has also produced some of the sport's most famous upsets: at Headingley in 1981, Australia enforced the follow-on against England and lost anyway, one of only a handful of times in Test history a team has won after being sent back in.
- Select Match length — five-day (Test), four-day, three-day, two-day, or one-day.
- Read Lead required beneath the selector — the exact run lead Law 14.1 sets for that match length.
- Compare the figure to the actual first-innings lead to see whether the leading captain currently has the option available.
- Remember the lead required is a legal minimum, not a recommendation — captains routinely qualify for the follow-on and choose not to enforce it.
Worked example — a standard five-day Test match
Select the 5-day match (Test match) option. Lead required reads 200 — the side that bats first must lead by at least 200 runs after the first innings before its captain has the legal option of enforcing the follow-on.
If the same team were instead playing a shorter three-day fixture, the required lead would drop to 150 — the same Law, applied to a match with less time available to bowl the opposition out twice, so the bar for taking that risk is set lower.
Questions
Why does the follow-on lead requirement change by match length?
Because the risk of enforcing the follow-on is time-dependent. In a five-day Test, a captain who enforces the follow-on and fails to dismiss the opposition twice has given up a full extra day or more that could have been spent batting — so Law 14.1 sets a high bar (200 runs) before that gamble is even an option. In a one-day match there's barely time for two full innings each anyway, so the bar drops to 75.
Is enforcing the follow-on mandatory once a team reaches the required lead?
No — it's entirely the leading captain's choice. Reaching the lead threshold in Law 14.1 only grants the option; many captains choose to bat again instead, especially late in a match when their bowlers are tired or the pitch has begun to deteriorate in the leading side's favour, which is often more valuable than the time saved by enforcing it.
What happens if a team enforces the follow-on and still loses?
It happens, and it's one of cricket's most famous storylines when it does. At Headingley in 1981, Australia enforced the follow-on against England after building a big first-innings lead, only for England to fight back and win the match — one of the small handful of times in Test history a team has won after being made to follow on.
Does the follow-on rule apply to limited-overs cricket like ODIs and T20s?
No. The follow-on only exists in two-innings, multi-day cricket — first-class and Test matches — where each side bats twice. Limited-overs formats like ODIs and T20s give each side a single innings capped by an overs limit, so there is no second innings to enforce and Law 14.1 simply doesn't apply.
How reliable is the 150-run figure for four-day matches specifically?
Law 14.1 groups three-day and four-day matches together under the same 150-run threshold — it isn't a separate figure for four days specifically, but part of a single band covering both match lengths. That banding (200 / 150 / 100 / 75 for 5+, 3–4, 2, and 1-day matches) is set out directly in the Laws of Cricket published by the MCC.