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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Dustin Murray-Simmons

Bib: 2452 •M •Age: 28

Suffolk, VA

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0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Age Group (M25-29)
#0 / 240
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
31:32
3.11 mi
Rank: #1242
Start → 5K
31:32 | 10:09/mi
10K
1:04:22
6.21 mi
Rank: #1305 (-63)
5K → 10K
32:50 | 10:35/mi
15K
1:35:57
9.32 mi
Rank: #1250 (+55)
10K → 15K
31:35 | 10:10/mi
20K
2:07:10
12.43 mi
Rank: #1224 (+26)
15K → 20K
31:13 | 10:03/mi
Half
2:14:08
13.10 mi
Rank: #1204 (+20)
20K → Half
6:58 | 10:23/mi
25K
2:40:36
15.53 mi
Rank: #1204
Half → 25K
26:28 | 10:52/mi
30K
3:12:42
18.64 mi
Rank: #1241 (-37)
25K → 30K
32:06 | 10:20/mi
35K
3:54:39
21.75 mi
Rank: #1231 (+10)
30K → 35K
41:57 | 13:31/mi
25.2M
4:36:52
25.20 mi
Rank: #1231
35K → 25.2M
42:13 | 12:14/mi
Finish
4:47:28
26.22 mi
Rank: #1221 (+10)
25.2M → Finish
10:36 | 10:25/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:14:08
Pace10:15 /mi
2nd Half
Distance13.12 mi
Time2:33:21
Pace11:42 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:16:1131:3210:0931:32
10:09
-
10K
6.21 mi08:49:011:04:2210:2232:50
10:35
+0:26
15K
9.32 mi09:20:361:35:5710:1831:35
10:10
-0:25
20K
12.43 mi09:51:492:07:1010:1431:13
10:03
-0:07
Half
13.10 mi09:58:472:14:0810:156:58
10:23
+0:20
25K
15.53 mi10:25:152:40:3610:2126:28
10:52
+0:29
30K
18.64 mi10:57:213:12:4210:2132:06
10:20
-0:32
35K
21.75 mi11:39:183:54:3910:4841:57
13:31
+3:11
25.2M
25.20 mi12:21:314:36:5211:0042:13
12:14
-1:17
Finish
26.22 mi12:32:074:47:2810:5910:36
10:25
-1:49

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

10:03 /mi

Average Pace

10:58 /mi

Slowest Pace

13:31 /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

0:00

0% of race

Time at Steady Pace

3:23:18

71% of race

Time at Slower Pace

1:24:10

29% of race

Average Pace: 10:58 /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 mi08:16:1131:3210:0931:32
10:09
#1242
10K
6.21 mi08:49:011:04:2210:2232:50
10:35
#1305
15K
9.32 mi09:20:361:35:5710:1831:35
10:10
#1250
20K
12.43 mi09:51:492:07:1010:1431:13
10:03
#1224
Half
13.10 mi09:58:472:14:0810:156:58
10:23
#1204
25K
15.53 mi10:25:152:40:3610:2126:28
10:52
#1204
30K
18.64 mi10:57:213:12:4210:2132:06
10:20
#1241
35K
21.75 mi11:39:183:54:3910:4841:57
13:31
#1231
25.2M
25.20 mi12:21:314:36:5211:0042:13
12:14
#1231
Finish
26.22 mi12:32:074:47:2810:5910:36
10:25
#1221
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi12428331791208(Top 62%)815(Top 71%)175(Top 73%)
10K6.21 mi3.10 mi1305-63865-32181-21367(Top 70%)900(Top 78%)189(Top 79%)
15K9.32 mi3.11 mi1250+55837+28177+41208(Top 62%)815(Top 71%)175(Top 73%)
20K12.43 mi3.11 mi1224+26825+121771143(Top 59%)777(Top 67%)164(Top 68%)
Half13.10 mi0.67 mi1204+20810+15174+3986(Top 51%)681(Top 59%)148(Top 62%)
25K15.53 mi2.43 mi1204811-1171+31206(Top 62%)796(Top 69%)166(Top 69%)
30K18.64 mi3.11 mi1241-37823-121711348(Top 69%)843(Top 73%)174(Top 73%)
35K21.75 mi3.11 mi1231+10804+19166+51250(Top 64%)774(Top 67%)166(Top 69%)
25.2M25.20 mi3.45 mi1231793+11165+11233(Top 63%)744(Top 65%)164(Top 68%)
Finish26.22 mi1.02 mi1221+10785+8164+11098(Top 56%)680(Top 59%)146(Top 61%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×1
+26ft-31ft

Overall

1208

Males

815

M25-29

175

5K→10K

3.1 - 6.2 mi

Top 70%
×2
+38ft-17ft

Overall

1367

Males

900

M25-29

189

10K→15K

6.2 - 9.3 mi

Top 62%
×2
+26ft-44ft

Overall

1208

Males

815

M25-29

175

15K→20K

9.3 - 12.4 mi

Top 59%
×1
+35ft-22ft

Overall

1143

Males

777

M25-29

164

20K→Half

12.4 - 13.1 mi

Top 51%
×1
+7ft-13ft

Overall

986

Males

681

M25-29

148

Half→25K

13.1 - 15.5 mi

Top 62%
×2
+48ft-19ft

Overall

1206

Males

796

M25-29

166

25K→30K

15.5 - 18.6 mi

Top 69%
×2
+38ft-52ft

Overall

1348

Males

843

M25-29

174

30K→35K

18.6 - 21.8 mi

Top 64%
×2
+39ft-39ft

Overall

1250

Males

774

M25-29

166

35K→25.2M

21.8 - 25.2 mi

Top 63%
×3
+57ft-58ft

Overall

1233

Males

744

M25-29

164

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×1
+17ft-12ft

Overall

1098

Males

680

M25-29

146

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
219
Passed By
198
Net Change
+21
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1242
5K → 10K1275-63#1242#1305
10K → 15K561+55#1305#1250
15K → 20K348+26#1250#1224
20K → Half200+20#1224#1204
Half → 25K20200#1204#1204
25K → 30K1249-37#1204#1241
30K → 35K3222+10#1241#1231
35K → 25.2M21210#1231#1231
25.2M → Finish122+10#1231#1221
TOTALS219198+21
📊

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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