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Technique

Osoto-gari basic movement
Demostrated by Judo Link head instructor Lincoln Han with assistant instructor Alessio Iannascoli.

Competition examples
2008 Golden State Open: Osoto-counter
I performed a failed osoto, my opponent counters me with osoto-gari of his own, I counter him with an osoto-gaeshi(?)
2008 Ladder Tournament: Osoto-gari from seio-nage grip
I caught my opponent with my preferred osoto-gari from the seio-nage entry gripping the lapel.
2009 Tolmezzo Tournament (Italy): Classic Osoto-gari from the left grip
In the opening seconds, I attack my opponent with ko-uchi-gar, and follow up with a classic osoto-gari.
2009 Tolmezzo Tournament (Italy): Two hand on one side grip osoto attack
Osoto-gari followed up with another osoto-gari, I had too much distance and was not able to throw.
2009 Bellizzi Tournament (Italy): No lapel osoto-gari
My opponent throughout the match kept his weight mostly backward to defend against any forward attack. I improvised the sudden change of side and even without a lapel grip I was able to knock him down with an osoto-gari using his backward force.
2009 Winter Nationals: Osoto-gari from seio-nage grip
Again, my opponent was very defensive toward the back, and I used the osoto-gari with seio-nage entry.
2010 Vittorio Veneto Tournament (Italy): Osoto-gari with high-collar grip
My opponent took a high grip, and I used shoulder roll to escape, and entered with my own high-collar grip osoto-gari.
2010 Vittorio Veneto Tournament (Italy): Osoto-gari to osae-komi
I fought an much more experienced opponent from a police team, and was able to catch him with the osoto-gari from seio-nage entry for a yuko, and made the transition into the hold.
2012 US National: Osoto-gari to Harai-goshi finish
I threw my opponent first with the osoto-gari from seio-nage entry, and later again entered with osoto-gari but changed direction for a harai-goshi finish, unexpectedly. It could be argued that it was an osoto anyway due to the lack of hip contact, and it could also be a seio-otoshi from the grip.