The Royalists started with 15 battle groups. The Scots Covenanters and Parliament had 19 battle groups. The Royalist right flank collapsed under the onslaught of Cromwell’s “Ironsides” Horse regiments which caused an Army break, after the Cavaliers accrued 16 attrition points.
A bad day for the Royalist Cause! Hopefully, there’ll be a re-fight later in the year.