TvT build order guide

Reaper Expand into Tank/Viking

Detected when a Reaper-first scout is followed by a single expansion and then Siege Tanks behind Vikings -- the standard TvT positional macro opener that masses tanks for the air-controlled contain.

TvTPatch 5.0.16New

60.0% win rate over 50 ladder games since patch 5.0.16

n = 50 games from 2 players · Stats updated Sep 28, 2026

Reaper Expand into Tank/Viking wins 60.0% of decided games across 50 TvT ladder games from 2 players since patch 5.0.16. The likely range for its true win rate is 46.2–72.4%, so it is too close to call against a coin flip. It appears in 27.3% of the 183 TvT games in the guide sample. This guide is newly published, so there is no weekly trend yet. This is still a small sample (n = 50), so treat it as a directional read.

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Key timings

These timings come from 49 recorded build orders by 2 players. Buildings are timed when construction starts, upgrades and morphs when they finish, exactly as the replay records them. The median player finishes Combat Shield at 10:01, with the middle half between 9:47 and 10:25. Timing data is still thin (n = 49 replays), so expect these medians to move.

Key timings from 49 recorded build orders, in game time
Milestone	Early (p25)	Median	Late (p75)
Refinery startedin 49 games	0:41	0:42	0:45
Barracks startedin 49 games	1:07	1:08	1:09
Factory startedin 49 games	2:03	2:06	2:08
Orbital Command donein 49 games	2:19	2:20	2:22
2nd Command Center startedin 49 games	2:36	2:38	2:40
Starport startedin 49 games	3:21	3:23	3:26
3rd Command Center startedin 49 games	5:27	5:54	6:10
Engineering Bay startedin 45 games	6:56	7:09	7:34
Stimpack donein 43 games	8:17	8:30	8:46
Armory startedin 40 games	8:37	9:03	9:26
Infantry Weapons 1 donein 37 games	9:27	9:38	10:14
Combat Shield donein 37 games	9:47	10:01	10:25