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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Brian Barton

Bib: 2859 •M •Age: 42

Mableton, GA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Masters (Masters Men)
#0 / 398
Age Group (M40-44)
Official
#0 / 120
Calculated (M40-44)
#0 / 120
Race Day Weather
71°/61°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
35:24
3.11 mi
Rank: #1669
Start → 5K
35:24 | 11:24/mi
10K
1:13:02
6.21 mi
Rank: #1719 (-50)
5K → 10K
37:38 | 12:07/mi
15K
1:53:23
9.32 mi
Rank: #1769 (-50)
10K → 15K
40:21 | 13:00/mi
20K
2:38:13
12.43 mi
Rank: #1820 (-51)
15K → 20K
44:50 | 14:26/mi
Half
2:49:58
13.10 mi
Rank: #1831 (-11)
20K → Half
11:45 | 17:31/mi
25K
3:35:45
15.53 mi
Rank: #1892 (-61)
Half → 25K
45:47 | 18:48/mi
30K
4:22:37
18.64 mi
Rank: #1905 (-13)
25K → 30K
46:52 | 15:06/mi
35K
5:25:10
21.75 mi
Rank: #1910 (-5)
30K → 35K
1:02:33 | 20:08/mi
25.2M
6:36:01
25.20 mi
Rank: #1928 (-18)
35K → 25.2M
1:10:51 | 20:32/mi
Finish
6:52:27
26.22 mi
Rank: #1929 (-1)
25.2M → Finish
16:26 | 16:08/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:49:58
Pace12:59 /mi
2nd Half
Distance13.12 mi
Time4:02:29
Pace18:29 /mi
📊Positive Split: 42.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:24:0335:2411:2435:24
11:24
-
10K
6.21 mi09:01:411:13:0211:4637:38
12:07
+0:43
15K
9.32 mi09:42:021:53:2312:1040:21
13:00
+0:53
20K
12.43 mi10:26:522:38:1312:4444:50
14:26
+1:26
Half
13.10 mi10:38:372:49:5812:5911:45
17:31
+3:05
25K
15.53 mi11:24:243:35:4513:5445:47
18:48
+1:17
30K
18.64 mi12:11:164:22:3714:0646:52
15:06
-3:42
35K
21.75 mi13:13:495:25:1014:581:02:33
20:08
+5:02
25.2M
25.20 mi14:24:406:36:0115:431:10:51
20:32
+0:24
Finish
26.22 mi14:41:066:52:2715:4516:26
16:08
-4:24

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

11:24 /mi

Average Pace

15:45 /mi

Slowest Pace

20:32 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:38:13

38% of race

Time at Steady Pace

1:15:03

18% of race

Time at Slower Pace

2:59:11

43% of race

Average Pace: 15:44 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:24:0335:2411:2435:24
11:24
#1669
10K
6.21 mi09:01:411:13:0211:4637:38
12:07
#1719
15K
9.32 mi09:42:021:53:2312:1040:21
13:00
#1769
20K
12.43 mi10:26:522:38:1312:4444:50
14:26
#1820
Half
13.10 mi10:38:372:49:5812:5911:45
17:31
#1831
25K
15.53 mi11:24:243:35:4513:5445:47
18:48
#1892
30K
18.64 mi12:11:164:22:3714:0646:52
15:06
#1905
35K
21.75 mi13:13:495:25:1014:581:02:33
20:08
#1910
25.2M
25.20 mi14:24:406:36:0115:431:10:51
20:32
#1928
Finish
26.22 mi14:41:066:52:2715:4516:26
16:08
#1929
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi166910391071831(Top 94%)1116(Top 97%)113(Top 94%)
10K6.21 mi3.10 mi1719-501075-36112-51746(Top 90%)1082(Top 94%)111(Top 93%)
15K9.32 mi3.11 mi1769-501093-181121831(Top 94%)1116(Top 97%)113(Top 94%)
20K12.43 mi3.11 mi1820-511114-21113-11897(Top 97%)1130(Top 98%)114(Top 95%)
Half13.10 mi0.67 mi1831-111112+2112+11926(Top 99%)1140(Top 99%)118(Top 98%)
25K15.53 mi2.43 mi1892-611133-21113-11934(Top 99%)1142(Top 99%)118(Top 98%)
30K18.64 mi3.11 mi1905-131136-3114-11933(Top 99%)1142(Top 99%)119(Top 99%)
35K21.75 mi3.11 mi1910-51138-2115-11916(Top 98%)1136(Top 99%)119(Top 99%)
25.2M25.20 mi3.45 mi1928-181143-5117-21943(Top 100%)1149(Top 100%)120(Top 100%)
Finish26.22 mi1.02 mi1929-11144-11171909(Top 98%)1126(Top 98%)115(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×1
+26ft-31ft

Overall

1831

Males

1116

M40-44

113

5K→10K

3.1 - 6.2 mi

Top 90%
×2
+38ft-17ft

Overall

1746

Males

1082

M40-44

111

10K→15K

6.2 - 9.3 mi

Top 94%
×2
+26ft-44ft

Overall

1831

Males

1116

M40-44

113

15K→20K

9.3 - 12.4 mi

Top 97%
×1
+35ft-22ft

Overall

1897

Males

1130

M40-44

114

20K→Half

12.4 - 13.1 mi

Top 99%
×1
+7ft-13ft

Overall

1926

Males

1140

M40-44

118

Half→25K

13.1 - 15.5 mi

Top 99%
×2
+48ft-19ft

Overall

1934

Males

1142

M40-44

118

25K→30K

15.5 - 18.6 mi

Top 99%
×2
+38ft-52ft

Overall

1933

Males

1142

M40-44

119

30K→35K

18.6 - 21.8 mi

Top 98%
×2
+39ft-39ft

Overall

1916

Males

1136

M40-44

119

35K→25.2M

21.8 - 25.2 mi

Top 100%
×3
+57ft-58ft

Overall

1943

Males

1149

M40-44

120

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×1
+17ft-12ft

Overall

1909

Males

1126

M40-44

115

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
29
Passed By
289
Net Change
-260
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1669
5K → 10K959-50#1669#1719
10K → 15K555-50#1719#1769
15K → 20K051-51#1769#1820
20K → Half1021-11#1820#1831
Half → 25K263-61#1831#1892
25K → 30K013-13#1892#1905
30K → 35K38-5#1905#1910
35K → 25.2M018-18#1910#1928
25.2M → Finish01-1#1928#1929
TOTALS29289-260
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
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