All Results|Race Analytics|Course|Contact

Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Shih-Heng Chen

Bib: 1033 •M •Age: 46

Cary, NC

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 1949
Top 42%
Gender (Male)
#0 / 1153
Top 49%
Masters (Masters Men)
#0 / 398
Top 47%
Age Group (M45-49)
Official
#0 / 89
Calculated (M45-49)
#0 / 89
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
28:57
3.11 mi
Rank: #948
Start → 5K
28:57 | 9:20/mi
10K
57:35
6.21 mi
Rank: #921 (+27)
5K → 10K
28:38 | 9:13/mi
15K
1:26:17
9.32 mi
Rank: #904 (+17)
10K → 15K
28:42 | 9:15/mi
20K
1:55:50
12.43 mi
Rank: #919 (-15)
15K → 20K
29:33 | 9:31/mi
Half
2:02:25
13.10 mi
Rank: #907 (+12)
20K → Half
6:35 | 9:49/mi
25K
2:25:38
15.53 mi
Rank: #875 (+32)
Half → 25K
23:13 | 9:32/mi
30K
2:52:02
18.64 mi
Rank: #842 (+33)
25K → 30K
26:24 | 8:30/mi
35K
3:27:53
21.75 mi
Rank: #828 (+14)
30K → 35K
35:51 | 11:33/mi
25.2M
4:06:23
25.20 mi
Rank: #818 (+10)
35K → 25.2M
38:30 | 11:10/mi
Finish
4:16:26
26.22 mi
Rank: #812 (+6)
25.2M → Finish
10:03 | 9:52/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:02:25
Pace9:21 /mi
2nd Half
Distance13.12 mi
Time2:14:01
Pace10:13 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:05:1128:579:2028:57
9:20
-
10K
6.21 mi08:33:4957:359:1728:38
9:13
-0:07
15K
9.32 mi09:02:311:26:179:1628:42
9:15
+0:02
20K
12.43 mi09:32:041:55:509:2029:33
9:31
+0:16
Half
13.10 mi09:38:392:02:259:216:35
9:49
+0:18
25K
15.53 mi10:01:522:25:389:2323:13
9:32
-0:17
30K
18.64 mi10:28:162:52:029:1426:24
8:30
-1:02
35K
21.75 mi11:04:073:27:539:3435:51
11:33
+3:03
25.2M
25.20 mi11:42:374:06:239:4738:30
11:10
-0:23
Finish
26.22 mi11:52:404:16:269:4810:03
9:52
-1:18

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

8:30 /mi

Average Pace

9:47 /mi

Slowest Pace

11:33 /mi

Loading chart...
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

26:24

10% of race

Time at Steady Pace

2:35:41

61% of race

Time at Slower Pace

1:14:21

29% of race

Average Pace: 9:47 /mi

Loading chart...
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 mi08:05:1128:579:2028:57
9:20
#948
10K
6.21 mi08:33:4957:359:1728:38
9:13
#921
15K
9.32 mi09:02:311:26:179:1628:42
9:15
#904
20K
12.43 mi09:32:041:55:509:2029:33
9:31
#919
Half
13.10 mi09:38:392:02:259:216:35
9:49
#907
25K
15.53 mi10:01:522:25:389:2323:13
9:32
#875
30K
18.64 mi10:28:162:52:029:1426:24
8:30
#842
35K
21.75 mi11:04:073:27:539:3435:51
11:33
#828
25.2M
25.20 mi11:42:374:06:239:4738:30
11:10
#818
Finish
26.22 mi11:52:404:16:269:4810:03
9:52
#812
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi94866950885(Top 45%)632(Top 55%)47(Top 53%)
10K6.21 mi3.10 mi921+27652+1749+1899(Top 46%)632(Top 55%)49(Top 55%)
15K9.32 mi3.11 mi904+17641+1148+1885(Top 45%)632(Top 55%)47(Top 53%)
20K12.43 mi3.11 mi919-15648-750-2952(Top 49%)666(Top 58%)53(Top 60%)
Half13.10 mi0.67 mi907+12641+750817(Top 42%)588(Top 51%)43(Top 48%)
25K15.53 mi2.43 mi875+32624+1749+1779(Top 40%)556(Top 48%)44(Top 49%)
30K18.64 mi3.11 mi842+33601+2347+2754(Top 39%)523(Top 45%)46(Top 52%)
35K21.75 mi3.11 mi828+14584+1747793(Top 41%)518(Top 45%)47(Top 53%)
25.2M25.20 mi3.45 mi818+10565+1946+1954(Top 49%)586(Top 51%)49(Top 55%)
Finish26.22 mi1.02 mi812+6561+446903(Top 46%)565(Top 49%)52(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×1
+26ft-31ft

Overall

885

Males

632

M45-49

47

5K→10K

3.1 - 6.2 mi

Top 46%
×2
+38ft-17ft

Overall

899

Males

632

M45-49

49

10K→15K

6.2 - 9.3 mi

Top 45%
×2
+26ft-44ft

Overall

885

Males

632

M45-49

47

15K→20K

9.3 - 12.4 mi

Top 49%
×1
+35ft-22ft

Overall

952

Males

666

M45-49

53

20K→Half

12.4 - 13.1 mi

Top 42%
×1
+7ft-13ft

Overall

817

Males

588

M45-49

43

Half→25K

13.1 - 15.5 mi

Top 40%
×2
+48ft-19ft

Overall

779

Males

556

M45-49

44

25K→30K

15.5 - 18.6 mi

Top 39%
×2
+38ft-52ft

Overall

754

Males

523

M45-49

46

30K→35K

18.6 - 21.8 mi

Top 41%
×2
+39ft-39ft

Overall

793

Males

518

M45-49

47

35K→25.2M

21.8 - 25.2 mi

Top 49%
×3
+57ft-58ft

Overall

954

Males

586

M45-49

49

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×1
+17ft-12ft

Overall

903

Males

565

M45-49

52

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
225
Passed By
89
Net Change
+136
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#948
5K → 10K4013+27#948#921
10K → 15K258+17#921#904
15K → 20K722-15#904#919
20K → Half120+12#919#907
Half → 25K386+32#907#875
25K → 30K374+33#875#842
30K → 35K2915+14#842#828
35K → 25.2M2919+10#828#818
25.2M → Finish82+6#818#812
TOTALS22589+136
📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

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
Loading certificate...

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
Share Feedback