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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Brandon Chhoeun

Bib: 353 •M •Age: 41

Virginia Bch, VA

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
36:28
3.11 mi
Rank: #1738
Start → 5K
36:28 | 11:45/mi
10K
1:06:39
6.21 mi
Rank: #1430 (+308)
5K → 10K
30:11 | 9:43/mi
15K
1:38:32
9.32 mi
Rank: #1369 (+61)
10K → 15K
31:53 | 10:16/mi
20K
2:11:33
12.43 mi
Rank: #1359 (+10)
15K → 20K
33:01 | 10:38/mi
Half
2:19:14
13.10 mi
Rank: #1350 (+9)
20K → Half
7:41 | 11:27/mi
25K
2:47:38
15.53 mi
Rank: #1351 (-1)
Half → 25K
28:24 | 11:40/mi
30K
3:20:54
18.64 mi
Rank: #1362 (-11)
25K → 30K
33:16 | 10:43/mi
35K
4:10:30
21.75 mi
Rank: #1453 (-91)
30K → 35K
49:36 | 15:58/mi
25.2M
4:57:34
25.20 mi
Rank: #1475 (-22)
35K → 25.2M
47:04 | 13:39/mi
Finish
5:09:54
26.22 mi
Rank: #1484 (-9)
25.2M → Finish
12:20 | 12:07/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:19:14
Pace10:38 /mi
2nd Half
Distance13.12 mi
Time2:50:40
Pace13:01 /mi
📊Positive Split: 22.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:24:4136:2811:4536:28
11:45
-
10K
6.21 mi08:54:521:06:3910:4430:11
9:43
-2:02
15K
9.32 mi09:26:451:38:3210:3531:53
10:16
+0:33
20K
12.43 mi09:59:462:11:3310:3633:01
10:38
+0:22
Half
13.10 mi10:07:272:19:1410:387:41
11:27
+0:49
25K
15.53 mi10:35:512:47:3810:4828:24
11:40
+0:13
30K
18.64 mi11:09:073:20:5410:4733:16
10:43
-0:57
35K
21.75 mi11:58:434:10:3011:3249:36
15:58
+5:15
25.2M
25.20 mi12:45:474:57:3411:4947:04
13:39
-2:19
Finish
26.22 mi12:58:075:09:5411:5012:20
12:07
-1:32

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

9:43 /mi

Average Pace

11:50 /mi

Slowest Pace

15:58 /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

2:08:21

41% of race

Time at Steady Pace

1:24:53

27% of race

Time at Slower Pace

1:36:40

31% of race

Average Pace: 11:49 /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 mi08:24:4136:2811:4536:28
11:45
#1738
10K
6.21 mi08:54:521:06:3910:4430:11
9:43
#1430
15K
9.32 mi09:26:451:38:3210:3531:53
10:16
#1369
20K
12.43 mi09:59:462:11:3310:3633:01
10:38
#1359
Half
13.10 mi10:07:272:19:1410:387:41
11:27
#1350
25K
15.53 mi10:35:512:47:3810:4828:24
11:40
#1351
30K
18.64 mi11:09:073:20:5410:4733:16
10:43
#1362
35K
21.75 mi11:58:434:10:3011:3249:36
15:58
#1453
25.2M
25.20 mi12:45:474:57:3411:4947:04
13:39
#1475
Finish
26.22 mi12:58:075:09:5411:5012:20
12:07
#1484
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 mi173810811121231(Top 63%)828(Top 72%)91(Top 76%)
10K6.21 mi3.10 mi1430+308924+15796+161056(Top 54%)730(Top 63%)82(Top 68%)
15K9.32 mi3.11 mi1369+61898+2693+31231(Top 63%)828(Top 72%)91(Top 76%)
20K12.43 mi3.11 mi1359+10889+992+11339(Top 69%)870(Top 75%)93(Top 78%)
Half13.10 mi0.67 mi1350+9882+791+11347(Top 69%)873(Top 76%)91(Top 76%)
25K15.53 mi2.43 mi1351-1880+2911414(Top 73%)898(Top 78%)93(Top 78%)
30K18.64 mi3.11 mi1362-11881-192-11433(Top 74%)885(Top 77%)97(Top 81%)
35K21.75 mi3.11 mi1453-91920-3995-31624(Top 83%)981(Top 85%)102(Top 85%)
25.2M25.20 mi3.45 mi1475-22928-896-11556(Top 80%)932(Top 81%)96(Top 80%)
Finish26.22 mi1.02 mi1484-9932-497-11541(Top 79%)918(Top 80%)92(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×1
+26ft-31ft

Overall

1231

Males

828

M40-44

91

5K→10K

3.1 - 6.2 mi

Top 54%
×2
+38ft-17ft

Overall

1056

Males

730

M40-44

82

10K→15K

6.2 - 9.3 mi

Top 63%
×2
+26ft-44ft

Overall

1231

Males

828

M40-44

91

15K→20K

9.3 - 12.4 mi

Top 69%
×1
+35ft-22ft

Overall

1339

Males

870

M40-44

93

20K→Half

12.4 - 13.1 mi

Top 69%
×1
+7ft-13ft

Overall

1347

Males

873

M40-44

91

Half→25K

13.1 - 15.5 mi

Top 73%
×2
+48ft-19ft

Overall

1414

Males

898

M40-44

93

25K→30K

15.5 - 18.6 mi

Top 74%
×2
+38ft-52ft

Overall

1433

Males

885

M40-44

97

30K→35K

18.6 - 21.8 mi

Top 83%
×2
+39ft-39ft

Overall

1624

Males

981

M40-44

102

35K→25.2M

21.8 - 25.2 mi

Top 80%
×3
+57ft-58ft

Overall

1556

Males

932

M40-44

96

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×1
+17ft-12ft

Overall

1541

Males

918

M40-44

92

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
454*
Passed By
200
Net Change
+254
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1738
5K → 10K308*0+308#1738#1430
10K → 15K665+61#1430#1369
15K → 20K2111+10#1369#1359
20K → Half101+9#1359#1350
Half → 25K2425-1#1350#1351
25K → 30K1021-11#1351#1362
30K → 35K596-91#1362#1453
35K → 25.2M931-22#1453#1475
25.2M → Finish110-9#1475#1484
TOTALS454*200+254

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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.

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