That is what you usually hear; Forrest took his cavalry and escaped.
Here are some highlights from "Where the South Lost the War" by Kendall D. Gott.
Capt Robert Hughes of FLoyd's staff directed to gather up his staff and collect the Virginia men and the 20 Mississippi for evacuation.
By 4;00 on Sunday morning, Feb 16, Forrest and about 400 mean were ready to depart. Gantt and 9 Tenn had not yet come up and Major Kelley was sent for a 3rd time to hasten their arrival. But Gantt and his men responded to each offer in the negative(? refuse to leave?). Two the Tennessee companies felt differently and cast their lot with Forrest, but two companies under command of Captains James K. Huey and M. D. Wilcox, failed to rejoin the regiment. They would never serve with him again.
As the gray column passed through Dover, Forrest discovered General Pilllow, who he expected to escort, had already crossed the Cumberland by boat. As they made their way through the camps, men who were lucky or resourceful enough to find a horse joined with Forrest. Artillerymen unhitched their horses from their limbers and joined the column which swelled to over 500 men.
The appendix lists the strength of Forrest's Cavalry at 1,444 men.
But
KIA = 14
WiA = 25
Surrendered= 619
Escaped = 786
Well, his book has the same statistics for ALL CS units. Here are the total Escaped for a few more units.
10 Tenn Regt = 44
53 Tenn Regt = 48
8 Kentucky Regt = 31
7 Texas Regt = 31
5th Brigade == 478
51 Virginia = 225
56 Virginia = 253
6th Brigade == 572
20 Miss Regt = 30
36 Virginia = 220
50 Virginia = 322
26 Miss Regt = 26
LEFT WING - Buckner
2 Kentucky Regt = 48
14 Miss Regt = 3
41 Tenn Regt = 26
50 Tenn Regt = 95
ARTILLERY
10 Batteries -- = 185 total escaped
Grand TOTALS
Left Wing == 1,264
Right Wing == 86
Command under Col Head/Bailey == 97
Artillery == 185
Cavalry == 786
Other assorted regiments had 1, 3 or so to escape. Now maybe not ALL of these Escapees went with Forrest. They took the easy route and crossed the Cumberland by boats.