On the first leg, best place to stop the clock to get the lead-off runner's split is, as you rightly pointed out, when the baton (whomever is carrying it) crosses the green spotted line within the box.
Originally Posted by Pioneer
SILVER FOR SOUTH AFRICA, WELL DONE USA
02 September 2011 - 21:15
Position Lane Bib Team Country Mark .
1 5 United States
(Greg Nixon; Bershawn Jackson; Angelo Taylor; LaShawn Merritt) USA 2:59.31 .
2 8 South Africa
(Shane Victor; Ofentse Mogawane; Willem de Beer; L.J. van Zyl) RSA 2:59.87 .
3 4 Jamaica
(Allodin Fothergill; Jermaine Gonzales; Riker Hylton; Leford Green) JAM 3:00.10 .
4 3 Russia
(Maksim Dyldin; Konstantin Svechkar; Pavel Trenikhin; Denis Alekseyev) RUS 3:00.22 (SB)
5 6 Belgium
(Jonathan Borlée; Antoine Gillet; Nils Duerinck; Kévin Borlée) BEL 3:00.41 (SB)
6 7 Kenya
(Vincent Kiplangat Kosgei; Vincent Mumo Kiilu; Anderson Mureta Mutegi; Mark Kiprotich Mutai) KEN 3:01.15 .
7 1 Great Britain & N.I.
(Richard Strachan; Nigel Levine; Christopher Clarke; Martyn Rooney) GBR 3:01.16 .
8 2 Germany
(Jonas Plass; Kamghe Gaba; Miguel Rigau; Thomas Schneider) GER 3:01.37 .
I wonder why the US put in Jackson and Taylor to the squad. They ran slower while Merritt was made to run a couple seconds faster than in the heats.