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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Lon Chang

Bib: 913 •M •Age: 57

Huntersville, NC

Shamrock Marathon logo
0:00
0:00
/ mi
MastersBQ
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Overall
#0 / 1949
Top 11%
Gender (Male)
#0 / 1153
Top 14%
Masters (Masters Men)
#0 / 398
Top 13%
Age Group (M55-59)
#0 / 61
Top 10%
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
22:58
3.11 mi
Rank: #175
Start → 5K
22:58 | 7:24/mi
10K
46:38
6.21 mi
Rank: #201 (-26)
5K → 10K
23:40 | 7:38/mi
15K
1:10:08
9.32 mi
Rank: #205 (-4)
10K → 15K
23:30 | 7:34/mi
20K
1:33:09
12.43 mi
Rank: #195 (+10)
15K → 20K
23:01 | 7:25/mi
Half
1:38:18
13.10 mi
Rank: #188 (+7)
20K → Half
5:09 | 7:41/mi
25K
1:56:48
15.53 mi
Rank: #179 (+9)
Half → 25K
18:30 | 7:36/mi
30K
2:21:34
18.64 mi
Rank: #230 (-51)
25K → 30K
24:46 | 7:59/mi
35K
2:48:35
21.75 mi
Rank: #214 (+16)
30K → 35K
27:01 | 8:42/mi
25.2M
3:16:56
25.20 mi
Rank: #203 (+11)
35K → 25.2M
28:21 | 8:13/mi
Finish
3:26:22
26.22 mi
Rank: #211 (-8)
25.2M → Finish
9:26 | 9:16/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:38:18
Pace7:31 /mi
2nd Half
Distance13.12 mi
Time1:48:04
Pace8:15 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:53:2322:587:2422:58
7:24
-
10K
6.21 mi08:17:0346:387:3123:40
7:38
+0:14
15K
9.32 mi08:40:331:10:087:3223:30
7:34
-0:04
20K
12.43 mi09:03:341:33:097:3023:01
7:25
-0:09
Half
13.10 mi09:08:431:38:187:315:09
7:41
+0:16
25K
15.53 mi09:27:131:56:487:3218:30
7:36
-0:05
30K
18.64 mi09:51:592:21:347:3624:46
7:59
+0:23
35K
21.75 mi10:19:002:48:357:4627:01
8:42
+0:43
25.2M
25.20 mi10:47:213:16:567:4928:21
8:13
-0:29
Finish
26.22 mi10:56:473:26:227:539:26
9:16
+1:03

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. Green = fastest, yellow = moderate, red = slowest segments.

Fastest Pace

7:24 /mi

Average Pace

7:53 /mi

Slowest Pace

9:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Color indicates pace quality: green = fast pace, yellow = moderate, red = slow pace.

Time at Fast Pace

0:00

0% of race

Time at Moderate Pace

1:56:48

57% of race

Time at Slow Pace

1:29:34

43% of race

Average Pace: 7:52 /mi

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Fast pace (< avg)
Moderate pace (≈ avg)
Slow pace (> avg)

🎨Heatmap

Pace Heatmap

Visual intensity map of your pacing throughout the race. Green = fastest, yellow = moderate, red = slowest.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Fast
Moderate
Slow

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 mi07:53:2322:587:2422:58
7:24
#175
10K
6.21 mi08:17:0346:387:3123:40
7:38
#201
15K
9.32 mi08:40:331:10:087:3223:30
7:34
#205
20K
12.43 mi09:03:341:33:097:3023:01
7:25
#195
Half
13.10 mi09:08:431:38:187:315:09
7:41
#188
25K
15.53 mi09:27:131:56:487:3218:30
7:36
#179
30K
18.64 mi09:51:592:21:347:3624:46
7:59
#230
35K
21.75 mi10:19:002:48:357:4627:01
8:42
#214
25.2M
25.20 mi10:47:213:16:567:4928:21
8:13
#203
Finish
26.22 mi10:56:473:26:227:539:26
9:16
#211
Fast pace
Moderate pace
Slow pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi1751471208(Top 11%)168(Top 15%)5(Top 8%)
10K6.21 mi3.10 mi201-26164-174-3222(Top 11%)175(Top 15%)5(Top 8%)
15K9.32 mi3.11 mi205-4165-14208(Top 11%)168(Top 15%)5(Top 8%)
20K12.43 mi3.11 mi195+10158+73+1176(Top 9%)148(Top 13%)3(Top 5%)
Half13.10 mi0.67 mi188+7154+43114(Top 6%)102(Top 9%)1(Top 2%)
25K15.53 mi2.43 mi179+9147+72+1162(Top 8%)137(Top 12%)3(Top 5%)
30K18.64 mi3.11 mi230-51181-346-4563(Top 29%)404(Top 35%)21(Top 34%)
35K21.75 mi3.11 mi214+16166+156170(Top 9%)133(Top 12%)5(Top 8%)
25.2M25.20 mi3.45 mi203+11155+116197(Top 10%)144(Top 12%)6(Top 10%)
Finish26.22 mi1.02 mi211-8160-56671(Top 34%)428(Top 37%)18(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×1
+26ft-31ft

Overall

208

Males

168

M55-59

5

5K→10K

3.1 - 6.2 mi

Top 11%
×2
+38ft-17ft

Overall

222

Males

175

M55-59

5

10K→15K

6.2 - 9.3 mi

Top 11%
×2
+26ft-44ft

Overall

208

Males

168

M55-59

5

15K→20K

9.3 - 12.4 mi

Top 9%
×1
+35ft-22ft

Overall

176

Males

148

M55-59

3

20K→Half

12.4 - 13.1 mi

Top 6%
×1
+7ft-13ft

Overall

114

Males

102

M55-59

1

Half→25K

13.1 - 15.5 mi

Top 8%
×2
+48ft-19ft

Overall

162

Males

137

M55-59

3

25K→30K

15.5 - 18.6 mi

Top 29%
×2
+38ft-52ft

Overall

563

Males

404

M55-59

21

30K→35K

18.6 - 21.8 mi

Top 9%
×2
+39ft-39ft

Overall

170

Males

133

M55-59

5

35K→25.2M

21.8 - 25.2 mi

Top 10%
×3
+57ft-58ft

Overall

197

Males

144

M55-59

6

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×1
+17ft-12ft

Overall

671

Males

428

M55-59

18

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
71
Passed By
107
Net Change
-36
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#175
5K → 10K228-26#175#201
10K → 15K59-4#201#205
15K → 20K111+10#205#195
20K → Half70+7#195#188
Half → 25K123+9#188#179
25K → 30K152-51#179#230
30K → 35K204+16#230#214
35K → 25.2M132+11#214#203
25.2M → Finish08-8#203#211
TOTALS71107-36
📊

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

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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