Checking through my files, I jotted down some reaction times for several world class finals, and determine the average. This isn't an exhaustive nor a statistically deep analysis (since I have a million other things to do!), but it does provide insight to the topic at hand.

The data includes reaction times from 5 events, including '87 WC (two data points), '91 WC (three points), '97 WC (5 points), '99 WC (8 points), and '96 OG (7 points). Ranking the averages in decreasing order (slowest to fastest):

'87 WC 0.161s

'96 OG 0.157s

'99 WC 0.141s

'97 WC 0.128s

'91 WC 0.117s

The '91 WC average is low due to the inclusion of Mitchell's 0.090s start. The '87 WC is a bit high due to the fact that only 2 data points were available (Johnson and Lewis), and Lewis' 0.193s reaction tipped the scale (cf. Ben's 0.129s).

The average of the averages is 0.141s. So, based on this quick analysis, one can consider the previously cited 0.14-0.16s reaction range to be accurate for the athletes.

A better analysis would be to examine the variance of reactions in a particular athlete, but I don't have enough data to do that.

==============================================

1987 Wc

Johnson 0.129

Lewis 0.193

Avg: 0.161

1991 WC

Lewis 0.14

Burrell 0.12

Mitchell 0.09

Avg: 0.117

1996 OG

Bailey 0.174

Fredericks 0.143

Boldon 0.164

Mitchell 0.145

Marsh 0.147

Ezinwa 0.157

Green 0.169

Avg: 0.157

1997 WC

Greene 0.13

Bailey 0.14

Montgomery 0.13

Fredericks 0.12

Boldon 0.12

Avg: 0.128

1999 WC

Greene 0.132

Surin 0.127

Chambers 0.140

Thompson 0.145

Harden 0.136

Montgomery 0.136

Gardner 0.142

Streete-T. 0.173

Avg: 0.141

The data includes reaction times from 5 events, including '87 WC (two data points), '91 WC (three points), '97 WC (5 points), '99 WC (8 points), and '96 OG (7 points). Ranking the averages in decreasing order (slowest to fastest):

'87 WC 0.161s

'96 OG 0.157s

'99 WC 0.141s

'97 WC 0.128s

'91 WC 0.117s

The '91 WC average is low due to the inclusion of Mitchell's 0.090s start. The '87 WC is a bit high due to the fact that only 2 data points were available (Johnson and Lewis), and Lewis' 0.193s reaction tipped the scale (cf. Ben's 0.129s).

The average of the averages is 0.141s. So, based on this quick analysis, one can consider the previously cited 0.14-0.16s reaction range to be accurate for the athletes.

A better analysis would be to examine the variance of reactions in a particular athlete, but I don't have enough data to do that.

==============================================

1987 Wc

Johnson 0.129

Lewis 0.193

Avg: 0.161

1991 WC

Lewis 0.14

Burrell 0.12

Mitchell 0.09

Avg: 0.117

1996 OG

Bailey 0.174

Fredericks 0.143

Boldon 0.164

Mitchell 0.145

Marsh 0.147

Ezinwa 0.157

Green 0.169

Avg: 0.157

1997 WC

Greene 0.13

Bailey 0.14

Montgomery 0.13

Fredericks 0.12

Boldon 0.12

Avg: 0.128

1999 WC

Greene 0.132

Surin 0.127

Chambers 0.140

Thompson 0.145

Harden 0.136

Montgomery 0.136

Gardner 0.142

Streete-T. 0.173

Avg: 0.141

## Comment